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Optical Lenses > Spherical Bi Concave Lenses > POL-BK7-BCV-B-25.4-250
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| Name: | DIA25.4mm BK7 Bi-Concave Lens f-250mm(600-1100nm) |
| P/N: | POL-BK7-BCV-B-25.4-250 | | Keywords: | Dia25.4mm,BK7,Focal Length-250mm,AR@600-1100nm |
| Unit Price: |
S$65.00/pc
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| Available: |
In stock
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| Request: |
Add to Request List |
| Introduction: | Bi-Concave lenses have a negative focal length and are best used to diverge a converging beam.
BK7 Optical Glass Lenses, Bi-Concave Design
Diameter 1-inch, AR coated at 600-1100nm |
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| Material: |
BK7 optical glass |
| Wavelength Range: |
350nm-2.0um |
| Design Wavelength: |
633nm (n=1.515082), bi-concave |
| Diameter: |
25.4,+0.0/-0.1mm |
| Effective Focal Length: |
-250mm (+/-1%) |
| Surface Quality: |
40/20 scratch and dig |
| Centration: |
<=3 arc min |
| Clear Aperture: |
>90% |
| Coating(Both Surfaces): |
AR coated at 600-1100nm,R<0.5% max | |
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