|
|
| Name: | DIA25.4mm Meniscus Lens(DAR1510-1620nm) f+113mm |
| P/N: | POL-MNC-P25.4-113-1570 | | Keywords: | Dia25.4mm,BK7,Miniscus,EFL+113mm,AR1510-1620nm |
| Unit Price: |
S$95.00/pc
|
| Available: |
In stock
|
| Request: |
Add to Request List |
| Introduction: | Meniscus lenses are convex-concave lenses. They have one outward curved face and one inward-curved face. If the outward curve is sharper than the inward curve, the lens has a positive focal length and acts as a magnifier.
If the inward curve is sharper than the outward curve, the lens has a negative focal length and acts as a reducing lens. |
|
|
|
Substrate Material: |
Schott N-BK7 optical glass |
|
Wavelength Range: |
350 - 2000nm |
|
Design Wavelength: |
1570nm(convex-concave, spherical - meniscus type) |
|
Outer Diameter(OD): |
25.4,-0.10/-0.05mm |
|
Center Thickness(CT): |
4.00,+/-0.05mm |
|
Edge Thickness(ET): |
- |
|
Radius of Curvature(R1) |
40.70,+/-0.05mm (convex) |
|
Radius of Curvature(R2) |
140.8,+/-0.05mm(concave) |
|
Effective Focal Length(EFL): |
+113.0mm designed @ 1570nm |
|
Back Focal Length(BFL): |
+109.0mm |
|
Surface Quality: |
40/20 scratch and dig |
|
Surface Figure: |
< lambda/4 @ 633nm inspected (over clear aperture) |
|
Clear Aperture: |
>90% |
|
Centration: |
<0.05mm |
|
Coating: |
AR coated @1510 -1620nm, R<0.25%, 0-deg AOI (double surfaces) |
|
Bevel: |
0.20mm, 40-50 degrees | |
Optical Substrates
Optical Lenses
Spherical Plano Convex Lenses
