| Model: | ccjx |
|---|---|
| Brand: | ccjx |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Electronic Instrument / Optical Lens & Instrument |
| Label: | Double-Concave Lens , Concave Lens , spherical lenses |
| Price: |
¥25
/ pc
|
| Min. Order: | 1 pc |
| Last Online:28 Feb, 2018 |
Double-concave lens is compose of two concave surface, has a negative focal length. Double-concave lens is best use when the input beam is converging, It is used in beam expanders,projection optics system,optical viewers and optical character readers etc.
|
Material |
H-K9L，BK-7,Fused Silica，CaF2，MgF2，BaF2，Si，Ge etc. |
|
Diameter (mm) |
3-500 |
|
Diameter Tolerance (mm) |
+0.0/-0.1 |
|
Clear Aperture |
≥90% |
|
EFL Tolerance |
±1% |
|
CT Tolerance (mm) |
±0.1 |
|
Radius R1 (mm) |
-1.46-50000mm |
|
Design Wavelength (nm) |
587.6 |
|
Centration Error |
≤3" |
|
Surface Flatness |
λ/10@633nm |
|
Surface Quality |
10/5--80/50 |
|
Bevel |
0.25×45° |
|
Coating |
As customer’s requirement. |
| Payment Terms: | T/T |
|---|---|
