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golddragonoptica Precision optical lenses

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Head of Essilor talks about forthcoming tech advancement, including a smartphone app that can detect eye problems The most earth-shattering news in the eyewear market recently is undoubtedly the merger announced in early 2017 between French lens maker Essilor and the Italian eyewear frame maker Luxottica-both the industry No 1 in their respective sectors. By mid-December 2017, European Union antitrust regulators were set to clear the 46 billion euro ($56.6 billion) merger without asking for concessions. The deal would create a company that makes products from Ray-Bans to Giorgio Armani frames and has its own major eyeglass retail outlets. Hubert Sagnieres, chairman and CEO of Essilor, is actively advancing the merger. To him, this is vital for the eyewear industry because there is not yet a powerful leader. Passionate about the career to which he has devoted years, Sagnieres is very much concerned about people's inadequate awareness regarding vision. He quotes numbers from time to time to show the seriousness: Out of the 7.3 billion people in the world, roughly 4.5 billion have a visual problem. And 2.5 billion of them do not have access to eyewear products or treatment services. The cost of poor vision is around $300 billion every year, which he describes as "insane". But he is also optimistic about the forthcoming changes brought about by technology advancement. He foresees a time soon when people will come to a general, worldwide realization that visual health matters, in the same way appreciation for dental health became so prevalent 20 years ago. In an exclusive interview with China Daily, Sagnieres talked about his understanding of the Chinese market, his predictions for the eyewear sector and his passion for this industry. What are the reasons for the partnerships with two Chinese companies-Photosynthesis Group and Jiangsu Creasky Optical? We entered China in 1995. Now, 800 million Chinese people need vision correction but only a few hundreds of them have really corrected their vision. The biggest vision issue in China is myopia. To that end, our first purpose in China is to enlarge our capacity of production. That's why we have done a number of partnerships in the past few years. But we have a unique way of doing business. We do not do acquisitions in China but rather partner with local talents. We identify companies which have developed some unique businesses and take a piece of equity of their businesses. We will give them support in marketing and technology so that they can develop their business. Essilor is actually running more than 600 of that type of equity partnerships in the world. In China today, we have 12 such types of partnerships. How can your Chinese partners leverage Essilor's assets and expertise? We are doing two things-helping the local brands to go into optics and taking the brands internationally. With all our knowledge and experience, we are helping them to deliver more quality products in vision. For example, Bolon was mainly in the sunglasses sector. Now, Bolon has started to provide optical products with our technology. We are also helping Bolon to go abroad. We strongly believe that we have to take strong middle-class domestic Chinese brands worldwide. So in the past two years, if you are traveling in airports, you can see Bolon everywhere, even in JFK. We have invested heavily in such publicity. We are also opening stores of Bolon brand in Canada, France and the United States. For the two partnerships, we are also following the same route. We are developing optical lines of products with their brands and helping them to develop internationally. We would like to help them transform their design and adapt their products to the more international customers of America or Europe. Do you have any specific business models in China? Yes. One is the village doctor. Decades ago, they were called barefoot doctors. They have evolved over time in the remote areas of China, taking care of the people living there. There are 1.3 million village doctors. They belong to hospitals and go into the countryside, taking blood pressure, registering the health conditions of everyone. We are training them to do some eye tests. We are also selling them eye lenses for basically eight to 10 yuan ($1.26-1.58). They make a little profit by reselling them to the villagers for about 20 to 30 yuan each. Also, in some remote areas of China, there are some small healthcare centers providing services like massage. We train these staff for a week to sell eyeglasses as a supplement to revenues. For many places where there is no optical source, there are always some China Mobile rechargeable stations. We train the owners and the employees for one week on optics and make them able to do a very simple eye test, so that they can actually recommend eyeglasses. This is the type of business model that we have developed in about 46 countries in the world where the points of sales are missing. Opening stores is very complicated and costly. But we leverage some of the other resources. What are the products frequently sought out by consumers in the first-and second-tier cities in China? One is the product called Eyezen, which is especially popular among the so-called millenials. For this, we have the selective blue cut, which is a filter that can cut the blue ray. There are both good and bad blue rays. The good blue rays go into the brain and keep people awake at day and sleepy at night, helping people to regulate their life cycle. So we have developed a specific kind of filter which can let the good blue rays coming into the eye and the brain eventually, but cut the bad ones that would cause black spots on the retina. For children, one of the biggest solutions is Ortho-K contact lenses. Children wear them at night as a kind of treatment and they will not need to wear glasses in the morning. It's extremely efficient. It's for children 4 to 14 years old. What do you think are the major challenges of your company's operation in China? First is accessibility. In China, we have one store for 30,000 people. But the normal situation worldwide is one store for 7,000 people to ensure good services. So we are missing like 50,000 stores or access points, which means a mix of online and offline stores. But over time, people will need refraction or examination for their vision, so that we need to have that kind of store to know at which stage the user is. The second is about education. People should be aware that good vision is not granted for life. Parents should have their children's vision regularly checked. Myopia management is always important in China. How are online sales going in China and globally so far? Today, online sales contribute about 7 percent to the company's sales worldwide, which is about 500 million euros. But our online sunglasses activity represents today 20 percent of all our sunglasses business. It's a little less in corrective lenses in China. Purchasing eyeglasses in China is still complicated because of the eye exams. But online sales of sunglasses is much more in the country. We are boosting (online) with various programs. We are selling on all the platforms such as Tmall, Taobao, JD and VIP. We have launched online stores for sunglass brands like Bolon. We are also hooked onto many mobile phone applications, one of which can help consumers try on our eyeglasses online. What prompted the merger of Essilor and Luxottica? How is it going so far? We have filed antitrust in 20 countries and so far, 11 countries have given us the green light. The merger is likely to complete at the end of the first semester in 2018. We are on a journey of eradicating poor vision in the world. We have the lenses and the technology. But Essilor is not in fashion. Consumers want a pair of fashion frames. Even though we now have several Bolon stores, we are still not an expert in opening stores. The world needs 400,000 new stores to give consumers the access, while Luxottica is an expert. The optical industry is so important to people's lives. But there is no industry leader. The industry is now 100 billion euros in value. Essilor is the leader in lenses, which is only 8 billion euros in revenue. We have no voice. With this merger, I would like to give vision and voice to this industry. What are your predictions for the future trend of this industry in the next few years? People will be able to take the eye exam with their smartphones. A year ago, we launched a massive contest to all the geeks making the apps in the world, which is called the "see change challenge". Now we have narrowed down to 15 technologies that actually work. The most exciting app is the one using big data analysis. With just a picture taken for your eyes, the ways your eyes are in the picture go to the cloud and are later analyzed versus millions of other eyes. The doctor can detect from that the patient's need in vision correction. Then, by applying a little bit of artificial intelligence into the iPhone on analyzing the picture, the doctor can go a step further in terms of the accuracy of the data. We have sent hundreds of so-called eye ambassadors in the world who go to the very remote areas and take pictures of people's eyes. So in the future, when people just need a little formula to choose contact lenses or to pick up the right frame, they can take the exam just on the smartphones. The change is not in the next 10 years, but just the next few years.

China is now capable of creating super-resolution optical microscopes that can see objects a mere 50 nanometers wide. This allows scientists to observe subtle molecular processes within cells in real time, potentially aiding in the development of new drugs. Traditional light microscopes are useful for investigating small objects and structures, but they lack precision when the space between objects is smaller than half the wavelength of light used to view them, at which point the two objects can blur into one. This issue is called the diffraction limit. Since 2000, this challenge has been gradually solved with the advent of super-resolution microscopy, which allows scientists to see and track molecules in action within a living cell. This technique is so valuable for biology and medical research that the Nobel Prize in chemistry was awarded to three microscopy experts in 2014. As China forges ahead in the fields of microbiology and molecular science, demand for high-end, super-resolution optical microscopes has soared, said Tang Yuguo, director of the Suzhou Institute of Biomedical Engineering and Technology under the Chinese Academy of Sciences. However, China has had to import most of the core components for these powerful microscopes, and their prohibitive costs restrict the country's innovation in biology, medicine and other cutting-edge fields, he said. Now, after five years of research, the institute said on Wednesday that it has made breakthroughs in advanced optical microscopes, including the highly sophisticated stimulated emission depletion microscopy. The technique was created by Stefan Hell, a 2014 Nobel Prize winner in chemistry. The institute introduced special lighting, fluorescent technology and a specialized lens-all of which are key components for producing high-resolution images and visualizing small structures with high clarity. These feats have helped China become one of the world's leading countries in super-resolution microscopy. But it still lags behind other countries such as the United States, which currently holds the world's highest resolution microscope, capable of viewing objects of just 0.04 nm, the journal Nature said in July. However, the Chinese super-resolution microscopes are cheaper than their global counterparts, and their resolution is sufficient for many key experiments. The institute said its machines have already been tested and used in many domestic and overseas institutes. The academy's Shanghai Institute of Materia Medica used these powerful microscopes to track how active ingredients of drugs are being positioned and transported within cells, thus speeding up pharmaceutical development. Stanford University, the University of Tokyo and other world-class institutes are also using Chinese microscopes to examine the activity of neurons, thus shedding light into the mechanisms by which our brain identifies information and controls behavior. Wang Ping, a professor of biomedical engineering at Zhejiang University, said people are becoming more confident of China's high-end equipment. Chai Zhifang, a researcher from the academy's Institute of High Energy Physics, said the microscope project has not only greatly reduced China's reliance on imports, but also has great strategic significance in improving the innovation capabilities of China's biomedical sectors. Yang Zekun contributed to this story.

Yang Wenlei shapes Olympus' China strategy with focus on services, manufacturing Yang Wenlei, CEO of the China unit of Japanese tech giant Olympus Corp, said the local market is of great significance for the company. Olympus, she said, has great confidence in the growth potential of the Chinese market. The company will press ahead with research and development activities and high-end manufacturing in China's medical field. It also aims to tap the huge local demand for medical equipment, including endoscopes, microscopes, and solutions for minimally invasive surgeries, she said. "We will enhance our efforts in medical, imaging and scientific solution sectors in China this year," Yang said. "The medical sector will be our main focus and we will pour more resources into the segment." At present, Olympus is focusing on sales promotions in China. "In the future, we hope to build a comprehensive regional headquarters in China, covering R&D, manufacturing, services and training," Yang said. "We attach great importance to the medical sector in China. Compared with Europe, the United States, Japan and other developed countries, China has huge potential demand for medical equipment, given its aging population." According to the China Medical Devices Industry Association, Olympus' endoscopy products are used in over 90 percent of Chinese hospitals with 3A grade, the highest of China's three-tier grading system for public hospitals, while its pathology microscopes account for about 30 percent of market share. Moreover, endoscopy treatments and minimally invasive surgeries in China offer an important opportunity for the company, according to Yang. Since 2009, Olympus has established medical training centers officially called C-TEC in Beijing, Shanghai and Guangzhou, providing a learning platform for doctors to run medical equipment and improve their operating skills. As for the traditional imaging sector, the shipments of digital cameras have witnessed a decline in recent years due to the popularity of smartphones. But Yang said that with the consumption upgrade in China, local consumers have an increasing demand for professional imaging equipment such as single interchangeable-lens reflex cameras. "We will continue to exert our own advantage in the imaging sector to develop and manufacture related products catering to the demands of consumers," Yang said. Founded in 1919, Olympus has been praised as a leader in precision technology. It introduced its first camera in 1936, kicking off an era for the imaging industry. In 2008, the company was the first to propose the concept of Micro Four Thirds, followed by the introduction of the first relevant camera products in 2009. This development provided the basis for the current mirrorless single-lens camera boom. Yang served Olympus Corp's China unit for 27 years before rising to its CEO this year, suggesting why it is not always easy for female executives to climb the corporate latter. Yang was born in Shanghai and started learning Japanese when she was a teenager. After graduating from Yokohama City University in March 1992, Yang joined Olympus Optical Co Ltd. After working there for several years, Yang landed the role of deputy managing director of Olympus China Investment Co Ltd in 2001. Throughout her career, Yang did her best to help Olympus group expand its presence in China. In April 2019, Yang was promoted to the highest position in Olympus' China subsidiary. Yang has her own understanding of being a good leader in a company. "As a manager, you should have a high degree of tolerance, which means you can accept different opinions and thinking methods, on the premise of respecting the employees' personalities," Yang said. "Secondly, I think a leader should have a relatively strong communication ability and analytical ability." Moreover, a leader needs to have decisive judgment skills and execution ability. "A leader should improve the motivation of employees, put the right people in right positions. We accept different characters, different ideas and different cultures." But how to put the staff in different positions and make full use of them is critical to the development of the whole company, she said. She also knows women have inborn talent in dealing with people better. "Women can give play to their own advantages, that is, being calm and inclusive. I can listen to different opinions, and try to balance these opinions, which women are good at." Moreover, women can understand a point about anything easily, she said. Yang loves traveling and cooking in her spare time. In her view, travel could be helpful to work, as contact with different people and sights of different sceneries could stimulate thinking and broaden horizons. "I often travel with my family members on holidays. I take along an Olympus camera to record the moments during my trip."

French lens producer Essilor Group will be introducing new optical solutions related to problem screening, correction, prevention and protection at the upcoming China International Import Expo (CIIE) which will take place in Shanghai in November. The company will also have professional optometrists to serve customers at the expo, providing services such as eye health screening, the company said on Thursday. Two new optometry-related instruments from Essilor will also be making their Asia Pacific debut at the CIIE. "The cutting-edge instruments will make the screening and refraction processes more comfortable, precise and effective," said Kok Leong Lim, president of the Essilor China lens division. Myopia is one of the most common health problems among Chinese youths. Statistics from the National Health Commission has shown that the myopia rate among children and teenagers in the country reached 53.6 percent last year, and it was as high as 81 percent among senior high school students. China's central and provincial-level governments have since set goals of reducing the rate among youths. The company said that it will join hands with the Shanghai Association for School Health Care to officially launch a training program during the CIIE to educating students and parents about proper eye care.

The Nanjing University of Science and Technology has unveiled a lens-free digital holography microscope "Cyte-Live" that it says can achieve high precision and a large field of view at the same time. Developed by a team of students at the university, the instrument won the gold prize at the fifth China College Students' "Internet+" Innovation and Entrepreneurship Competition held last month in Zhejiang province. Without a traditional optical lens, the instrument just contains a light source and a sensor. It is only 0.8 percent the size of a conventional microscope which is usually bulky and large, and can be easily lifted with one hand, said project leader Lu Linpeng, who is a doctoral candidate at the university. By leveraging computational microscopic imaging technologies, students developed algorithms that can reconstruct a high-resolution image based on a series of low-resolution images. According to Lu, the CyteLive can offer a field of view 200 times greater than that of a conventional microscope, with a single image reaching 100 megapixels. People can use it to observe 100,000 blood cells simultaneously. "Because cells are transparent, researchers usually have to stain and label cells with artificial fluorophores before observation, which can sometimes damage or even kill them, reducing the observation time," said Zuo Chao, a professor at the Nanjing University of Science and Technology. The new microscope can overcome this deficiency, enabling observation to last for several days without using any staining markers on the cells, Zuo said. It has been granted several patents and has already been applied in some Chinese hospitals and medical institutions. The research team said the microscope will soon enter the market.

Chinese smartphone makers are teaming up with professional camera and optical component makers to better meet growing demand of consumers for superior photo-taking and video-shooting capabilities in the 5G era. Vivo launched its X60 series of smartphones on Tuesday, featuring a quad-camera setup with optics from Zeiss, a German manufacturer of optical systems and optical electronics. The move came shortly after Vivo announced a long-term partnership with Zeiss, to jointly promote and develop breakthrough innovations in mobile imaging technology. Under the deal, Vivo and Zeiss will establish the Vivo Zeiss Imaging Lab, a joint research and development program to innovate mobile imaging technology for Vivo's flagship smartphones. Similarly, Oppo, another major smartphone maker in China, is also banking on strong camera capabilities to attract consumers, with its latest flagship smartphone featuring a high-end lens jointly developed with Sony. The latest smartphone, called Oppo Reno5 Pro Plus, was unveiled last week and comes with cutting-edge cameras, with the primary lens being an IMX766 sensor, which was jointly developed with Sony. The sensor is able to take in more light compared with rival products, which translates to brighter and clearer photos and videos, Oppo said. Huawei Technologies Co, the largest smartphone maker in China, has partnered with Leica Camera AG, a German premium-segment manufacturer of cameras and sport optics products, to boost the camera performance on its smartphones for a long time. Huang Haifeng, an independent expert who has been following the smartphone industry for more than a decade, said the intimate partnership between smartphone vendors and professional optics product makers shows that consumers have high expectations for the video-shooting capabilities of smartphones in the 5G era. "Short videos are already gaining traction among consumers, and 5G is expected to provide momentum for explosive growth in videos created by ordinary people. Consumers are more willing to buy phones that enhance their ability to shoot quality videos," Huang said. The number of internet audio-and-video users in China reached 901 million as of June, covering 95.8 percent of all internet users in the country, according to a report from the China Netcasting Services Association. Among the various segments of the online audiovisual industry, short videos have the largest market share. Total users of short video platforms reached 818 million as of June. Smartphone makers' efforts to attract video fans also comes as more Chinese consumers are willing to outgrow their 4G handsets and buy new 5G ones, which has intensified competition. Domestic shipments of 5G mobile phones reached 144 million units in the first 11 months of this year, with 199 new models hitting the market, said Wen Ku, a spokesman for the Ministry of Industry and Information Technology. During the third quarter of this year, Huawei continued to lead the 5G smartphone market in China, with a market share of 56.6 percent, according to market research company International Data Corp. Oppo and Vivo had market shares of 16.2 percent and 14.5 percent during the same period.

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs

Our company can produce a variety of specifications, radius, substrate material different flat convex spherical mirror flat convex cylindrical mirror, flat concave spherical mirror, double convex spherical mirror, double concave spherical mirror, meniscus spherical mirror and other ordinary spherical mirror. Special spherical mirror such as achromatic spherical mirror, aspheric mirror and spherical mirror group can also be processed. Materials: Various flint glass, UV fused quartz, infrared fused quartz and other optical glass and optical crystal materials such as calcium fluoride (CaF2), germanium (Ge), zinc selenide (ZnSe), silicon (Si) Focal length: ±5mm - ±1000mm±1% (Tiroptics Optomatic2000, Germany) Circle: 4mm - 200mm + 0.1mm Center thickness tolerance: ±0.1mm Center deviation: 3-5 points Surface accuracy: λ/2@ Surface quality: 40/20 Effective caliber: 90% Coating: Coating can be done according to customer requirements In addition, we have more than thousands of kinds of standard products, and some of the standard products in stock to meet your needs