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Synthetic Fused Silica Bi-Concave Lens

 
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.

  ĦApplication
telescope
binoculars
glasses
laser
camera
flashlight
door peephole
ĦSpecifications
Material Synthetic Fused Silica S.F.S.
Reflactive Index 1.4585/nd
Design Wavelength 587.6nm
Chamfering
TChamfer*With Protective chamfering
Dia.5 : 0.1mm
Dia.10 to Dia.100 : 0.2mm
ĦTolerance
Diameter +0mm/-0.1mm
Center Thickness +/-0.2mm
Focal Length +/-2%
Decentering Within 3 minutes(3')
Surface Quality MIL60-40
   
   
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 *
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.