Control Optics Taiwan Inc.
A Professional Manufacturer of Optical Lenses and Components in Taiwan
Detail Information
Description :
A lens having two spherically curved faces, one convex and the other concave, so that it has the form of a shell. A positive meniscus lens is thicker in the middle than at the edges and serves as a converging lens; a negative meniscus lens thickens toward the edges and works as a diverging lens. Very large telescopes may use meniscus mirrors, which are lightweight and require an active control system to retain their shape against gravity.
Specification :
- Paraxial focal length: ±2.
- Centration: 3 arc minutes.
- Surface figure:?/4 @ 632.8 nm.
- Surface quality: 60/40.
- Clear aperture: >80%.
- Bevel: <0.25mm x 45°.
- Coating: uncoated.
Control Optics Taiwan Inc.
- Taiwan
- No.106, Ln. 460, Nanshi Sec. 2, Zhongfeng Rd., Pingzhen Dist., Taoyuan City 32472, Taiwan
- 886-3-4397102
- 886-3-4399979