Yangzhou Huasheng Optical Instrument Factory [China]

Detailed Product Description

Meniscus lenses, including Positive Meniscus Lens & Negative Meniscus Lens.

Specification:
Material: Crown glass, high index glass, or custom materials
focal length: +/-2%
Diameter: +0.0/-0.2
Center thickness:  +/-0.1
Centering Accuracy: 3'
Figure (sphericity): 1~5
Surface Quality: 60/40
Coating: optional