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Plano-concave glass lenses are manufactured with one concave surface and one plane surface. These lenses have negative focal lengths.

    • Plano-concave lenses diverge incident light that is collimated.
    • They form virtual images which are seen through the lens.
    • They are often used to increase focal lengths in existing systems.
    • We also offer precision grade plano-concave lens with tighter manufacturing tolerances.
    • Plano-concave elements have a Minimum Order Quantity (MOQ) ranging from 100 to 1,000 units.

General Specifications:

Parameter Value
Default unit mm
Material BK7
Diameter tolerance +0,-0.1mm (+0, -0.15mm for diameter>75mm)
Focal length tolerance +/-2%
Center thickness tolerance +/-0.2mm
Centration 3 arc min
Surface quality 60-40
Flange width 0.2-0.4mm

PN: PVS018
Description: Plano-concave lens standard grade BK7 D= 25 EFL= -50
Material: BK7
EFL: -50
Diameter: 25
Index: 1.51872
BFL: -51.32
Tc: 2
Te: 5.21
Radius1: -25.936
Radius2: Infinity
Volume Price: $16.50 (MOQ Range Applies) Request Volume Quote


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