코팅 광학  제조업체, 딜러, 공급업체

After more than 30 years' rapid growth since the foundation in 1990, CASTECH INC. has become a recognized leading supplier of crystals, optics and laser components in the world. In 2008 CASTECH successfully completed IPO in Shenzhen stock exchange. (Stock Code 002222) Today, at our 450,000 sq ft advanced facility, over 1000 employees are dedicating to satisfy customer needs in terms of performance and cost effectiveness.
Crystals for Laser and Telecom Application:
With more than thirty years' untiring effort, CASTECH has developed flux, Czochralski, water solution and Bridgman-Stockbarger crystal growing technology, now is a worldwide leading supplier with largest mass production lines in the world for LBO, BBO, Nd:YVO4 and KTP. In addition, we also provide CLBO, BiBO, KDP, KD*P, Yb:CALGO, Yb:KGW, Ti: Sapphire, TGG, TSAG, α-BBO and other crystals for laser and telecom industries.

WIR LACKIEREN FÜR SIE SEIT 1981
Die 1981 in Forel bei Lausanne gegründete Schweizer Firma Metalcolor gilt in der Fachwelt als führender Spezialist für kontinuierliche Bandbeschichtung von Aluminiumbändern (Coil Coating). Seit Anbeginn sind qualitative Resultate der Kern unserer Unternehmensphilosophie. Das Unternehmen hat sich seit seiner Gründung bedeutend weiterentwickelt. Die Produktionskapazität in der Bandbeschichtung hat sich seit 1982 von 1 Million m² auf gegenwärtig jährlich 15 Millionen erhöht. Unser breites Produktangebot, kurze Lieferzeiten, Flexibilität und Zuverlässigkeit machen Metalcolor zu einer erstklassigen Referenz für Coil Coating im Industriebereich.
Wir sind weltweit präsent und europaweit führend in der Lieferung von Bändern zur Herstellung von Sonnenschutzlamellen. Bei der Entwicklung von maßgeschneiderten Produkten und Lieferkonzepten stellen wir den Kundenservice in den Mittelpunkt.

Zhejiang Crystal Optoelectronic Technology Co., Ltd. (COT) was founded on August 2, 2002 and listed on the Shenzhen Stock Exchange on September 19, 2008 (stock code 002273). In 2022, total revenue reached 43.76 billion yuan, with year-on-year growth of 14.86%, and the net profit climbed up to 5.95 billion yuan.
Over the past twenty years, COT has been a global optical expert in the field of information transaction, providing one-stop professional services from core components up to modules and solutions. At present, the company is involved in R&D and manufacturing process in five major industrial sectors, and its products include Optic Components, Thin-film Optics, Semiconductor Optics, Automotive Electronics & AR+, Reflective Materials, etc. The company has more than ten wholly-owned and controlling subsidiaries, and participates in multiple enterprises such as Japan Guangchi Co., Ltd., Ningbo Jishi Investment, Wuhan Wuyi Yuntong, Jingbang Optics, and Zhaoge Digital.
Our products span from Consumer Electronics, to Automotive Electronics and Metaverse. For Consumer Electronics, products such as Infra-Red Cut Filter (IRCF), Camera Cover Glass (CG), Narrow Band Pass Filter (NBPF) help COT to rank among the world's top producers and sellers. Our core competitiveness lies in its leading global technology integration ability to combine "Thin Film Design, Micro Nano Optic Techonology, Optic Cold Forming, and large-scale Automation" together. For Automotive Electronics, Head Up Display (HUD), Car Cams, and LiDAR window glasses have all been applied to the products and services of globally renowned vehicle manufacturers. For Metaverse, AI and display technology have developed rapidly in past few years, and COT has laid out a full technology path in the AR field to help incubate technology giants in mass production. In addition, the reflective materials produced by Zhejiang Yeshili, a wholly-owned subsidiary of Crystal Optech, have maintained a leading technological position in China for many years.
Looking into the future, with diversified application of Optics across different fields, the global optical industry has ushered in a golden opportunity. Crystal Optech will adhere to the guiding principle of "globalization, technology-oriented, and open cooperation", uphold the business philosophy of "be noble in life, be excellent in work", shoulder the mission of "innovation makes optics stronger, optics makes the world a better", and strive to "become an outstanding one-stop optical expert in the world"!

Edmund Optics® (EO) is a leading global supplier of optics, imaging, and photonics technology that has served a variety of markets including Life Sciences, Biomedical, Industrial Inspection, Semiconductor, R&D, and Defense since 1942. EO designs and manufactures a wide array of optical components, multi-element lenses, imaging systems, and optomechanical equipment, while supporting OEM applications with volume production of stock and custom products. Operating in more than a dozen major facilities around the globe, EO employs approximately 1,250 employees and continues to expand.
EO takes pride in helping customers from prototype to volume production, and specializes in creating cost-effective solutions that meet our customer’s specifications, timelines, and budgets. Whether requirements include stock optics, a build-to-print custom optical component, expert application engineering to optimize the design, or a completely custom design to customer-supplied requirements, our engineers can create ideal solutions for each unique optical challenge. Every step of the way, Edmund Optics® is committed to ensuring product and procedural quality.

Our core competence is the coating of optical components for technical applications.
With innovative coating designs, we modify the physical surface properties of glasses, plastics and metals. In this way, we influence reflection, transmission and emission behavior so that they meet the requirements of your application. Thin dielectric and metallic layers can be used to make high-precision adjustments to the optical surface characteristics. With a broad portfolio of vacuum coating systems of various technologies, Bte develops economical, high-quality coatings that perfectly adapt to the products and applications of our customers.