meniscus cylindrical lens

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品牌：	vy
单价：	1.00元/
起订：	10
供货总量：	50000
发货期限：	自买家付款之日起 3 天内发货
所在地：	吉林长春市
有效期至：	长期有效
最后更新：	2015-03-11 14:01
浏览次数：	45

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产品详细说明

Meniscus Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly. This lens shape is best used when one conjugate is relatively far from the lens.

Specifiction of our meniscus lens as follow:

*Material BK7 or other optical materials

*Dimension Tolerance +0.0~-0.1mm

*Center Thickness +/-0.1mm

*Focal Length Tolerance+/-1%

*Surface Quality:40/20

*Surface Figure:lambda/2 at 633nm on plano side

*Clear Aperture >90%

*Chamfer 0.25mm at 45 degree typical

*Coating Optional

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