It has a negative focal length and is used for image reduction and divergence applications! Custom orders for anti-reflective coatings and others are also possible.
The "synthetic quartz plano-concave lens" can be combined with a convex lens to extend the working distance or to expand the LD beam, allowing for adjustments to the optical system. The general usage method is the same as that of a plano-convex lens, where the parallel light beam is directed towards the concave side. Additionally, our synthetic quartz material (equivalent to ES) has a high transmittance in the ultraviolet wavelength range and excellent thermal expansion and thermal shock resistance. 【Specifications】 ■ Material: Synthetic molded S.F.S ■ Refractive index: 1.4585/nd, 1.4681/ne ■ Design wavelength: 587.6nm (d line) ■ Chamfer (45°) protective chamfer available ・φ3 to φ5: 0.1mm ・φ10 to φ100: 0.2mm *For more details, please download the PDF or feel free to contact us.
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basic information
【Tolerance】 ■Diameter: +0mm/-0.1mm ■Center thickness: ±0.2mm ■Focal length: ±2% ■Eccentricity: Within 3 minutes ■Surface quality: MIL60-40 *For more details, please download the PDF or feel free to contact us.
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Applications/Examples of results
【Main Uses】 ■ Autocollimator ■ Light detection ■ Laser collimation ■ Infinity-corrected objective lens, etc. *For more details, please download the PDF or feel free to contact us.
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Company information
This is an optical manufacturer with over 110 years of history, originating from Sugita Glass Instrument Store founded by Tōtarō Sugita in 1906 (Meiji 39). The main business is the research and manufacturing of glass, and for many years, it has supplied a wide variety of glass products to various fields. In 1982, the company changed its name to Sugito Co., Ltd. and promoted business expansion, designing, developing, manufacturing, and selling optical elements such as optical lenses and prisms, glass products like special lenses and magnifying glasses, as well as optical products and components including macro zoom lenses, microscopes, various scopes, and inspection equipment. Additionally, in 1993, a factory was newly established in Thailand to enhance the production capacity of glass products and lenses. The company keeps standard optical elements and lens systems in stock at all times and can sell from a single unit. It also handles the design, development, and manufacturing of optical elements and lens systems according to customer requests, so please feel free to inquire.
![Concave lenses [Available in various sizes, substrates, and coatings!]](https://image.mono.ipros.com/public/product/image/fe5/2000418465/IPROS6932304568819659667.jpg?w=280&h=280)
