It is suitable for lighting systems and finite imaging when combined with a convex lens!
The "synthetic quartz concave lens" has a negative focal length, reducing the image size and diverging light rays. Compared to a plano-concave lens, it has a stronger power to diverge light beams, making it suitable for use in lighting systems and finite imaging when combined with a convex lens. Additionally, the synthetic quartz material from Sugito (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) ■ Chamfering (45°) with protective chamfer ・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】 ■ Telescope ■ Binoculars ■ Laser ■ Camera ■ Flashlight ■ Peephole for the entrance, 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.
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