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| Synthetic Fused Silica Bi-Concave Lens |
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A biconcave lens has a negative focal length and either shrinks the image or diverges the rays.
Compared to a plano-concave lens, the power to diverge the light beam is stronger, so it is suitable for illumination systems and imaging in finite systems in combination with convex lenses.
Our Synthetic Fused Silica (equivalent to ES), penetration rate even at ultraviolet region is high, and have excellence on thermal expansion and heat shock resistance.
The products shown are uncoated, but we also accept custom orders for anti-reflection
coating and other coating. Please contact us for the coating simulation
data and the pricing.
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ĦApplication |
telescope
binoculars
glasses
laser
camera
flashlight
door peephole
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| ĦSpecifications |
| Material |
Synthetic Fused Silica S.F.S. |
| Reflactive Index |
Nd |
1.4585/Nd |
| Ne |
1.4681/Ne |
| Design Wavelength |
587.6nm |
Chamfering
TChamfer*With Protective chamfering |
Dia.5 : 0.1mm
Dia.10 to Dia.100 : 0.2mm |
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| ĦTolerance |
| Diameter |
+0mm/-0.1mm |
| Center Thickness |
+/-0.2mm |
| Focal Length |
+/-2% |
| Decentering |
Within 3 minutes(3') |
| Surface Quality |
MIL60-40 |
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| P/N |
Dia. |
F.L. |
B.F.L. |
Tc |
Te |
Material |
Price
(without tax) |
Price w/tax |
Note |
| TS-0345Q |
Dia.5 |
-5 |
-5.34 |
1.00 |
2.29 |
S.F.S. |
8,500 |
9,350 |
* |
| TS-0345Q2 |
Dia.5 |
-10 |
-10.35 |
1.00 |
1.63 |
S.F.S. |
8,500 |
9,350 |
* |
| TS-0345Q9 |
Dia.10 |
-10 |
-10.35 |
1.00 |
3.66 |
S.F.S. |
13,000 |
14,300 |
Please ask |
| TS-0345Q10 |
Dia.10 |
-15 |
-15.34 |
1.00 |
2.71 |
S.F.S. |
- |
- |
Please ask |
| TS-0345Q19 |
Dia.10 |
-100 |
-100.67 |
2.00 |
2.25 |
S.F.S. |
10,000 |
11,000 |
Please ask |
| TS-0345Q31 |
Dia.20 |
-20 |
-20.34 |
1.00 |
6.62 |
S.F.S. |
18,000 |
19,800 |
Please ask |
| TS-0345Q34 |
Dia.20 |
-50 |
-50.34 |
1.00 |
3.11 |
S.F.S. |
14,000 |
15,400 |
* |
| TS-0345Q39 |
Dia.20 |
-100 |
-100.67 |
2.00 |
3.05 |
S.F.S. |
14,000 |
15,400 |
Please ask |
| TS-0345Q40 |
Dia.30 |
-30 |
-30.71 |
2.00 |
10.52 |
S.F.S. |
- |
- |
Please ask |
| TS-0345Q41 |
Dia.30 |
-40 |
-40.69 |
2.00 |
8.18 |
S.F.S. |
21,000 |
23,100 |
* |
| TS-0345Q47 |
Dia.30 |
-100 |
-100.67 |
2.00 |
4.40 |
S.F.S. |
20,000 |
22,000 |
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Q'ty of inventory for all the items are small, please ask for stock q'ty at the time of ordering. The case there is no stock, max. lead time would be 45 days.
*This part will be made-to-order once the stock will be over.
**This part will be obsolete once the stock will be over.
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