Biconcave Spherical Lens

Double concave spherical lens is composed of two concave spherical surfaces, the focal length is negative, and it is usually used for narrowing imaging and diverging beams, etc.

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Product introduction

Double concave spherical lens is composed of two concave spherical surfaces, the focal length is negative, and it is usually used for narrowing imaging and diverging beams, etc. Widely used in display systems, projection systems, laser measurement, optical imaging, beam control and other fields.

Material	CDGM optical glass, CORNING, SCHOTT, HOYA, OHARA, and other specified materials
Outer diameter	φ4-φ80mm
Surface Figure	≤1（0.5）
Machining Tolerance	Center thickness tolerance: ±0.05mm, outer diameter tolerance: ±0.05mm, sagittal height tolerance: ±0.05mm
Eccentricity	1 arc minute
Surface Quality	40/20