| Model: | SFH |
|---|---|
| Brand: | SUNDAY |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Electronic Instrument / Analysis Instrument |
| Label: | Bi Concave Lens , optical lens , glass lens |
| Price: |
US $5
/ pc
|
| Min. Order: | 5 pc |
| Last Online:28 Dec, 2017 |
Bi Concave Lens
The double concave lenses with the negative focal length, these lenses are used in Beam Expanders, optics image, laser system and so on.
Specifications
| Dia. | N-BK7 |  |
| Diameter Tol. | +0.00/-0.1mm | |
| Desigh Wavelength | 546.10nm | |
| Design Index | 1.5183 | |
| Centration | <3arcmin | |
| Clear Aperture | >90% | |
| S/D | 40-20 Scratch and dig | |
| Flatness | 1/4lambda at 632.80nm | |
| Chamfer | 0.25mmx45° | |
| Focal Length Tol. | +/-1% |
Bk7 Standard Double Convex Lens
| No. | EFL(mm) | Dia.(mm) | R1=R2(mm) | Material | Tc(mm) | Te(mm) |
| SD4A12 | -20 | 12.70 | 21.08 | BK7 | 2.00 | 3.96 |
| SD4A13 | -30 | 12.70 | 31.48 | BK7 | 2.00 | 3.29 |
| SD4A14 | -40 |
12.70 |
41.48 | BK7 | 2.00 | 2.97 |
| SD4A15 | -50 | 12.70 | 52.24 | BK7 | 2.00 | 2.78 |
| SD4A25 | -50 | 25.40 | 52.17 | BK7 | 2.00 | 5.10 |
| SD4A27 | -75 | 25.40 | 78.09 | BK7 | 2.00 | 4.10 |
| SD4A210 | -100 | 25.40 | 104.00 | BK7 | 2.00 | 3.60 |
| SD4A215 | -150 | 25.40 | 156.00 | BK7 | 2.00 | 3.00 |
| SD4A220 | -200 | 25.40 | 207.66 | BK7 | 2.00 | 2.80 |
| SD4A225 | -250 | 25.40 | 259.49 | BK7 | 2.00 | 2.60 |
Manufacture Specifications
|
Diameter |
0.5mm to 600mm |
|
Diameter Tolerance |
+0.00/-0.1 or customer size |
|
Material |
N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc. |
|
Surface Quality |
80-50 to 10/5 |
|
Flatness |
1 lambda to 1/10 lambda |
|
Thickness Tolerance |
+0.00/-0.05mm |
|
Focal Length Tolerance |
+/-1% |
|
Clear Aperture |
>90% of diameter |
|
Centration |
<3arcmin |
|
Coating |
Single Mag2, Multiple Layers AR Coating
|
Specifications
| Dia. | N-BK7 | |
| Diameter Tol. | +0.00/-0.1mm | |
| Desigh Wavelength | 546.10nm | |
| Design Index | 1.5183 | |
| Centration | <3arcmin | |
| Clear Aperture | >90% | |
| S/D | 40-20 Scratch and dig | |
| Flatness | 1/4lambda at 632.80nm | |
| Chamfer | 0.25mmx45° | |
| Focal Length Tol. | +/-1% |
Bk7 Standard Double Convex Lens
| No. | EFL(mm) | Dia.(mm) | R1=R2(mm) | Material | Tc(mm) | Te(mm) |
| SD4A12 | -20 | 12.70 | 21.08 | BK7 | 2.00 | 3.96 |
| SD4A13 | -30 | 12.70 | 31.48 | BK7 | 2.00 | 3.29 |
| SD4A14 | -40 |
12.70 |
41.48 | BK7 | 2.00 | 2.97 |
| SD4A15 | -50 | 12.70 | 52.24 | BK7 | 2.00 | 2.78 |
| SD4A25 | -50 | 25.40 | 52.17 | BK7 | 2.00 | 5.10 |
| SD4A27 | -75 | 25.40 | 78.09 | BK7 | 2.00 | 4.10 |
| SD4A210 | -100 | 25.40 | 104.00 | BK7 | 2.00 | 3.60 |
| SD4A215 | -150 | 25.40 | 156.00 | BK7 | 2.00 | 3.00 |
| SD4A220 | -200 | 25.40 | 207.66 | BK7 | 2.00 | 2.80 |
| SD4A225 | -250 | 25.40 | 259.49 | BK7 | 2.00 | 2.60 |
Manufacture Specifications
|
Diameter |
0.5mm to 600mm |
|
Diameter Tolerance |
+0.00/-0.1 or customer size |
|
Material |
N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc. |
|
Surface Quality |
80-50 to 10/5 |
|
Flatness |
1 lambda to 1/10 lambda |
|
Thickness Tolerance |
+0.00/-0.05mm |
|
Focal Length Tolerance |
+/-1% |
|
Clear Aperture |
>90% of diameter |
|
Centration |
<3arcmin |
|
Coating |
Single Mag2, Multiple Layers AR Coating
|
| Payment Terms: | TT/LC/Wester union/other |
|---|---|
