Knight Optical Ltd.

Fresnel lenses replace the curved surface of a conventional lens with a series of concentric grooves, moulded into the surface of lightweight plastic sheets. Read more...

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Universe Kogaku (America) Inc.

UV Quartz Lenses and Lens Design for electronics, optics, medical and precision industrial applications. Universe Kogaku America adds to its existing line of Quartz lenses, a new 9mm lens for imaging applications in the non-visible light spectrum. This lens comes with a C-Mount, but can be configured to suit any requirement. Read more...

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Universe Kogaku (America) Inc.

The TOP-29 lens is a very High Resolution 29MM F/3.0 lens with minimal distortion, and a flat field. These lenses are used for measurement applications, machine vision and other high performance applications. Custom packaging, integrated filters and custom aperture ratios are readily available from Universe Kogaku America. Read more...

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Universe Kogaku (America) Inc.

Unlike anything else on the market, this lens features 9.0mm focal length with an F/number of 2.8. More importantly, this lens is packaged in the popular M12 x 0.5 pitch threaded barrel. Read more...

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Universe Kogaku (America) Inc.

Universe Kogaku - Understanding what focal lengths mean and how they work is very important when trying to find the perfect lens for the job. The focal length of an optical lens is basically the measurement of how strongly the lens can converge or focus and diverge or defocus light. Read more...

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Knight Optical Ltd.

Our lenses are moulded then optically polished enabling them to be used in illumination and focusing applications.

Due to it’s large diameter compared with the focal length, fire polished aspheric lenses have large apertures which are ideal for collecting light. Read more...

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Tower Optical Corporation

Tower Optical Corporation manufactures custom optical lenses to match your specifications. Read more...

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Universe Kogaku (America) Inc.

The laser speed gun utilizes an infrared laser lens that shoots a beam at cars going by. The laser beam is then reflected off of the car and back to the speed gun. The laser speed gun measures the roundtrip time it takes for the laser beam to reach the car and reflect back. Light from a laser moves at an extremely fast pace (about 984,000,000 feet per second) Read more...

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Chongqing Zhaohong Technology Co., Ltd.

Sapphire is one of the hardest materials, and possesses very good transmission during the range of visible and near IR spectrum. Customized optical lenses are produced according to specific requirements and drawings. Read more...

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Ross Optical Industries

Bi-convex lenses have a positive focal length. Our catalog bi-convex lenses have an identical curvature on both sides of the lens and are therefore symmetric. At unit conjugation, coma and distortion cancel out due to the symmetry. They can be used to focus incoming light. Read more...

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