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Optical Lenses > Spherical Bi Concave Lenses > POL-BK7-BCV-B-12.7-15
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Name: | DIA12.7mm BK7 Bi-Concave Lens(AR@600-1100nm)F-15mm |
P/N: | POL-BK7-BCV-B-12.7-15 | Keywords: | Dia12.7mm,BK7,Bi-concave,EFL-15mm,AR/AR@600-1100nm |
Unit Price: |
S$69.00/pc
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Available: |
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Request: |
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Introduction: | Bi-Concave lenses have a negative focal length and are best used to diverge a converging beam. Similar to a Plano-Concave lens, a Bi-Concave lens can diverge a collimated beam to a virtual focus as used in a Galilean type beam expander. |
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Substrate Material: |
BK7 optical glass |
Wavelength Range: |
350 ~ 2000nm |
Design Wavelength: |
633nm (n=1.515082), bi-concave configuration |
Outer Diameter: |
12.7,+0.0/-0.1mm |
Effective Focal Length(EFL): |
- 15mm (+/-1%) |
Surface Quality: |
40/20 scratch and dig |
Centration: |
<3 arc min |
Clear Aperture: |
>90% |
Coating(Both-Surface): |
AR coated @ 600-1100nm,0-deg AOI (R<0.5% max) | |
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