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Optical Lenses > Spherical Plano Concave Lenses > QUZS-C-R-0318-0950-G-C84
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| Name: | DIA31.8mm Concave(R-84mm) Quartz Window(U Grooved) |
| P/N: | QUZS-C-R-0318-0950-G-C84 | | Keywords: | Dia31.8xT9.5mm,Quartz,U-Grooved,Concave R-84mm |
| Unit Price: |
S$295.00/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: |
31.8, -0.2/+0.0mm |
| Edge Thickness: |
9.5mm |
| Radius of Converture(ROC): |
- 84mm (concave surface) |
| Effective Focal Length: |
NA |
| Surface Quality: |
40/20 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 |
| U-groove Process: |
U-groove width 2.5mm on edge surface; Drawing as shown below. |
| Coating: |
Uncoated, double-surface |
| Application: |
UVFS negative lens may work for under-water camera use |  |
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