DOUBLE CONCAVE LENSES
Keywords:
Keywords:
DOUBLE CONCAVE LENSES
Basic Parameters
Material selection: BK7 material, suitable for visible to near infrared band, low price, stable performance.
Material selection: Fused quartz material, suitable for deep ultraviolet to near infrared band, low coefficient of thermal expansion, can be used in ultraviolet or high-power applications.
Coating selection: The single-side reflectance of the material is generally about 4% before the coating, and the single-side reflectance is about 0.25% after the coating.
|
Processing Standards |
BK7 Double Concave Lens |
Fused Silica Double Concave Lens |
|
Wavelength |
350-2000nm |
185-2100nm |
|
Dia Tolerance |
+0.0/-0.1mm |
|
|
Thickness Tolerance |
+/-0.1mm |
|
|
CA |
>85% |
|
|
FL Tolerance |
5% (Standard) / 1% (High Precision) |
|
|
Surface Quality |
40/20 (Standard) / 20/10 (High Precision) |
|
| Fringe |
Power:3λ/2, PV:λ/4 |
|
| Centration |
<3 arc min |
|
|
Coating |
Customized |
|
BK7 Double Concave Lens Standard
|
Type |
Dia |
CT |
FL |
|
DCV105-F25 |
12.7 |
2 |
-25.0 |
|
DCV105-F30 |
12.7 |
2 |
-30.0 |
|
DCV105-F50 |
12.7 |
2 |
-50.0 |
|
DCV105-F100 |
12.7 |
2 |
-100.0 |
|
DCV110-F50 |
25.4 |
2 |
-50.0 |
|
DCV110-F75 |
25.4 |
2 |
-75.0 |
|
DCV110-F100 |
25.4 |
2 |
-100.0 |
|
DCV110-F150 |
25.4 |
2 |
-150.0 |
|
DCV110-F200 |
25.4 |
2 |
-200.0 |
|
DCV110-F250 |
25.4 |
2 |
-250.0 |
|
DCV110-F300 |
25.4 |
2 |
-300.0 |
UVFS Double Concave Lens Standard
|
Type |
Dia |
CT |
FL |
|
DCV205-F25 |
12.7 |
2 |
-25.0 |
|
DCV205-F30 |
12.7 |
2 |
-30.0 |
|
DCV205-F50 |
12.7 |
2 |
-50.0 |
|
DCV205-F100 |
12.7 |
2 |
-100.0 |
|
DCV210-F50 |
25.4 |
2 |
-50.0 |
|
DCV210-F75 |
25.4 |
2 |
-75.0 |
|
DCV210-F100 |
25.4 |
2 |
-100.0 |
|
DCV210-F150 |
25.4 |
2 |
-150.0 |
|
DCV210-F200 |
25.4 |
2 |
-200.0 |
|
DCV210-F250 |
25.4 |
2 |
-250.0 |
|
DCV210-F300 |
25.4 |
2 |
-300.0 |
Solutions
Scientific research and testing field
Aviation field
Medical cosmetology field
Laser field
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