It has a positive focal length and is used for image magnification and focusing applications!
A "hemispherical lens" is a convex lens that differs from a regular lens in that it has no edges (called the rim). It has a positive focal length and is used for applications such as image magnification and light concentration. Because the light incidence efficiency from the object to the lens surface is high, it is used at the tip of high-magnification objective lenses. Custom orders for anti-reflective coatings and other specifications are also accepted. 【Specifications】 ■ Material: BK-7 ■ Refractive Index ・1.51680/nd ・1.51872/ne ■ Design Wavelength: 587.6nm (d line) *For more details, please download the PDF or feel free to contact us.
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basic information
【Tolerance】 ■Diameter: ±0.05mm ■Center thickness: ±0.2mm ■Sphericity: ±0.05mm ■Focal length: ±2% ■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】 ■ Fiber optic communication ■ Objective lenses for microscopes ■ Endoscopes ■ Optical pickup devices ■ Laser measurement ■ Lenses for endoscopes, 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.
