C-lens are specifically designed for fiber optics applications such as collimator, isolator, switch,
collimator array and laser assembly. Compare to other gradient index lens,
C-lens have several advantages including low cost, low insertion loss in long
working distance, and wide working distance range. With our experienced
optical design engineers, Red Optronics can also provide custom designed C-lens per customer's requirement.
Gold plated/coated C-lens
Red Optronics offers C-lens with gold
coating.

Properties of C-lens
- Lens material: glass like
- Transmission: >99%(900-1700nm)
- Polarization
preservation:
0.99
- Thermal expansion
coefficient:
<6x10-6/°c
- Max operating temp: 400°c
- Hygroscopic
susceptibility:
no
- Acid and Alkaline
resistance: Excellent
- Power handing: >1w
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Applications:
- Collimator
- Isolator
- Switch
- MEMS
- Collimator Array
- Laser Assembly
Dimensions:

Main Specifications
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Diameter Tolerance: |
+0.005mm,-0.01mm for f1.8mm to
f4.0mm +0.0mm,-0.01mm for
f1.0mm |
Diameter Range: |
>
f1.0mm |
Length Tolerance: |
±0.03mm |
Curve
Radius Tolerance: |
±0.01mm |
Wedge Tolerance: |
±03° |
Surface Quality: |
40-20 scratch &
dig |
Coating: |
R<0.25%@(Design
Wavelength)±40nm |
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Standard Products
|
Part
No. |
Working
Distance |
f(mm) |
L(mm) |
q(o) |
l(nm) |
CL1855-100 |
<100 |
1.8 |
3.85 |
8 |
1550 |
CL1831-100 |
<100 |
1.8 |
3.85 |
8 |
1310 |
CL1859-100 |
<100 |
1.8 |
3.85 |
8 |
1590 |
CL1055-100 |
<100 |
1.0 |
3.85 |
8 |
1550 |
CL1031-100 |
<100 |
1.0 |
3.85 |
8 |
1310 |
CL1059-100 |
<100 |
1.0 |
3.85 |
8 |
1590 |
CL1855-68 |
<68 |
1.8 |
2.94 |
8 |
1550 |
CL1831-68 |
<68 |
1.8 |
2.94 |
8 |
1310 |
CL1859-68 |
<68 |
1.8 |
2.94 |
8 |
1590 |
CL1055-50 |
<50 |
1.0 |
2.62 |
8 |
1550 |
CL1031-50 |
<50 |
1.0 |
2.62 |
8 |
1310 |
CL1059-50 |
<50 |
1.0 |
2.62 |
8 |
1590 |
CL1055-68 |
<68 |
1.0 |
2.90 |
8 |
1550 |
CL1031-68 |
<68 |
1.0 |
2.90 |
8 |
1310 |
CL1059-68 |
<68 |
1.0 |
2.90 |
8 |
1590 |
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Ordering Information for
None Standard Products:
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