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Concave Lenses


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Code Coating F/L
(mm)
Dia
(mm)
BFL
(mm)
Rad
_(mm)
Radius 2 C/T
(mm)
E/T
(mm)
Form Material Grade Price Buy & More ...
LNQ32
25-XS
Uncoated 31.5 25 32.5 16.3 - 1.5 7.4 - N-BK7
or equiv
1 $22.50 More Info..
LNQ40
25-XS
Uncoated -40.1 25 -40.10 -20.966 - 1.74 5.7 - N-BK7
or equiv
1 $22.50 More Info..
LNQ25
46-XS
Uncoated - 77 - - - - - - Pyrex 2 $45.00 More Info..
LNQ25
45-XS
Uncoated -160 77 -162.46 76.2 - 2.5 13 - Pyrex 1 $52.50 More Info..
LNQ15
12-XS
Uncoated 13.6 12.5 -16.20 -7.73 - 1.98 4.82 Planoconcave BK7 or
equiv
1 $9.00 More Info..
LNQ19
11-XS
AR R<0.5%
(abs.) @
450-700nm
-153.75 100 -156.5 -133.51 -410.2 - 6 17.33 SF11 or
equiv
2 $112.50 More Info..
LPV82
07-XS
- -192.5 86 - - - - - Planoconcave BK7 or equiv 1 $202.00 More Info..
LNQ1912-XS AR R<0.5%
(abs.) @
450-750nm
- 54 - 133.35/
409.73
- 4.89 - Biconvex SF2 or
equiv
2 $82.50 More Info..
LNQ4675-XS - - 13.45 - R1=10.7mm
/R2=22.8mm
- 1.2 4.38 Biconvex SF1 or
equiv
2 $16.50 More Info..
Code Material Coated
sides
Full
Thkness
(mm)
Centre
Thkness
(mm)
Grade Price Buy & More ...
LNQ5939-XS UV Fused
Silica
27.8 5.8-6.5 0.8-0.85 1 $22.50 More Info..


Code Coating F/L
(mm)
Dia
(mm)
BFL
(mm)
Rad
(mm)
C/T
(mm)
E/T
(mm)
Form Material Grade Price Buy & More ...
LNS11
13-XS
AR Coated
@1064nm
7 8 - - - - Planocave UV Fused
Silica
1 $12.60 More Info..
LNQ20
01-XS
V-coating
@530+/-30nm
R<0.3%
7.69 13 7.75 - 1.5 - Biconave Ohara
S-TIM2
1 $12.50 More Info..

Code Form Material F/L
(mm)
Cent
ration
(arcmin)
C/T
(mm)
Dia
(mm)
Edge
Finish(mm)
Grd or cut
Chamfer S/Dig pol
substrate
S/Dig after
coating
Coating
desc
Price Buy & More ...
LNS800
102-XS
Plano-
concave
UV Fused
Silca
-800
+/-5%
3 10
+/-0.2
101.6
+0/-0.3
Ground Protective 80-50 80-50 AR/AR Ravg <0.5% 300-380 $295 More Info..

Plano-concave lenses have a plano flat face and an inward facing concave face. Biconcave lenses have both faces with inwards facing curves. They have a negative focal length achieved by bending input parallel rays so that they diverge away from one another on the output side of the lens. Plano-convex lenses are mainly used for image reduction in beam expanders, tube-length correction lens in microscopy and as a Barlow lens in astronomy. Our surplus concave lenses are mainly listed in BK7 or F2 equivalent materials. High-index materials such as F2 reduce spherical aberration and offers low F numbers. We also list lenses manufactured from UV Grade Fused Silica which works at 175nm.

Specification:
Diameter: +0/-0.15mm
Centration: <6 arc minutes
:Focal length: 1-1.5%
Centre thickness: +/-0.15mm
Surface quality: 60-40 scratch/ dig

If you require concave lenses up to 18” dia, AR coated for visible, NIR or Telecoms wavelengths.
Telephone +1-401 583 7846 or email sales@surplus-optics.com
Go to our contact form

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