Plano-Concave (PCV)Lenses, D=25.40mm, F=-200.00mm, IR1 CaF2 Single Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-1186-YJL)

Plano-Concave (PCV)Lenses, D=25.40mm, F=-200.00mm, IR1 CaF2 Single Crystal, model 120318, is manufactured by United Optical Technology Co., Ltd.
Calcium Fluoride (CaF2) Plano Concave (PCV) Lenses are plano-concave lenses based on calcium fluoride.
Calcium fluoride material has the characteristics of a wide transmission spectrum range (180nm-8.0μm), high damage threshold, low fluorescence, and high uniformity. The physical properties are soft and the surface is easy to scratch. It is often used in the collimation of lasers and is used as the base of a variety of optical components.

Diameter: 25.40mm
EFL: -200.00mm
Coating: Double Sided AR coating@3~5μm
Material: CaF2 single-crystal
BFL: -202.40mm
Curvature Radius R1: -86.80mm
Center Thickness CT: 3.50mm
Edge Thickness ET: 4.40mm
Available Mount Ring: 500018
Design Wavelength: 587.6nm
Diameter Tolerance: +0.0/-0.1
Center Thickness Tolerance: ±0.1
Surface Accuracy: --
Focal Length Tolerance: ±1%
Centering Tolerance: ＜3 arcmin
Surface Quality: 40/20-60/40
Bevel: 0.2X45°
n: --

Plano-concave lenses can radiate light and have a negative focal length. One side is flat and the other side is concave. They are often used for beam expansion, projection and enlarging the focal length of optical systems.
It has a negative focal length and negative spherical aberration, which can be used to offset the aberrations of other lenses in the system.

Plano-Concave (PCV)Lenses, D=25.40mm, F=-500.00mm, IR1 CaF2 Single Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-1187-YJL)
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