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Optical Lenses > Spherical Plano Concave Lenses > POL-PCV-U-UVFS-1800
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| Name: | DIA25.4mm UVFS Plano-Concave Substrate(R-900mm) |
| P/N: | POL-PCV-U-UVFS-1800 | | Keywords: | Dia25.4mm,EFL~-1800mm,ROC-900mm,UVFS,Uncoated |
| Unit Price: |
S$130.00/pc
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| Available: |
In stock
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| Request: |
Add to Request List |
| Introduction: | If the lens is plano-concave, a collimated beam of light passing through the lens is diverged (spread); the plano-concave lens is thus called a negative or diverging lens. The beam after passing through the lens appears to be emanating from a particular point on the axis in front of the lens; the distance from this point to the lens is also known as the focal length, although it is negative with respect to the focal length of a converging lens. |
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| Material: |
UV Fused Silica, deep UV grade |
| Operation Wavelength Range: |
200 ~ 2000nm |
| Design Wavelength: |
633nm (n=1.46), plano-concave |
| Diameter: |
25.4, -0.2/+0.0mm |
| Edge Thickness: |
6.0mm |
| Radius of Converture(ROC): |
- 900mm (concave surface) |
| Effective Focal Length: |
~ -1800mm |
| Surface Quality: |
20/10 scratch and dig |
| Surface Error: |
< lambda/4 @ 633nm over clear aperture |
| Centration: |
<=3 arc min |
| Clear Aperture: |
>90% of outer surface |
| Edge Surface: |
Ground only |
| Chamfer: |
0.2mmx45deg |
| Coating: |
Uncoated, double-surface |
| Application: |
UV negative lens and precvision substrate of concave laser mirrors for laser cavity use or imaging systems. | |
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