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• • Biconvex Lens
  • Calcium Fluoride Lens
  • Double Agglutination Lens
  • Double-concave Lens
  • Meniscus Lens
• • Optical Instrument
  • Plano Concave Lens
  • Switching Objective Lens
  • Three Agglutination Lens

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Beijing TRANS Manufacture and Trade Co., Ltd.

Optical Flats and Tools Prisms Windows Lenses Plano-Convex Spherical Lenses Symmetric-convex Spherical Lenses Plano-Concave Spherical Lenses Symmetric-concave Spherical Lenses Meniscus Lenses Calcium Fluoride Lenses Doublets and Triplets Coatings Custom Design ...

http://www.transoptics.com.cn/left_tj_e.htm

Beijing TRANS Manufacture and Trade Co., Ltd.

Plano concave lenses are manufactured with one concave surface and one plane surface. They have negative focal lengths. These lenses are often used to expand light or to increase focal lengths in existing systems. Focal Length n refractive index R radius curvature Material: BK7A Focal Length Tolerance: 0.5% Diameter Tolerance: +0/-0.2mm Thickness Tolerance: 0.2mm Surface Flatness: /10 Ce...

http://www.transoptics.com.cn/patj_e.htm

Symmetric-concave Spherical...

Symmetric concave lenses are manufactured with both concave surfaces. They have negative focal lengths. These lenses are often used to expand light or to increase focal lengths in existing systems. Also, they can be used in laser beam expander, optical characterreaders, viewers, and projection systems. Focal Length: n: refractive index R: radius curvature Material: BK7A Focal Length Tolerance: 0...

http://www.transoptics.com.cn/satj_e.htm

Meniscus Lenses

Meniscus lenses can be used with another lens to produce longer or shorter focal lengths. These lenses do not introduce additional spherical aberration or coma in the systems. Material: BK7A Focal Length Tolerance: 0.5% Diameter Tolerance: +0/-0.2mm Thickness Tolerance: 0.2mm Surface Flatness: /10 Centration Error: <3 arcmin Surface Quality: 20/10 Clear Aperture: >90% of central diameter ...

http://www.transoptics.com.cn/wytj_e.htm

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