Zero lenses, cavity lenses

Stock substrates

Zero lenses

Tolerances  
Diameter Ø: +0.0/-0.1 mm
Thickness t: ±0.1 mm
Radius of curvature: ±1%
Centering/Wedge: < 5 min. of arc
Chamfer: 0.1–0.3 mm x 45°
Clear aperture: > 80%
Surface imperf. tol.: 5/3 x 0.025
 

Zero lenses

Zero lenses have a convex and a concave side with the same radius of curvature: r = r1 = –r2. The transmitted beam has the very long focal length:

With additional plano-convex lenses, the transmitted and reflected beam can be focussed to the same point similar to cavity lenses.


Radius
r1 = –r2		UV-FS
Ø 12.7 x 6.35 mm
Article-No.
price
in €		UV-FS
Ø 25 x 6.35 mm
Article-No.
price
in €
30 mm S-00304 130 –  
38 mm S-01083 120 –  
50 mm S-00597 115 S-01088 190
75 mm S-00598 110 S-01089 175
100 mm S-00599 105 S-01090 165
150 mm S-00337 100 S-00497 160
200 mm S-01084 100 S-01091 155
250 mm S-00263 100 S-01092 150
300 mm S-00276 100 S-00493 150
350 mm S-00262 100 S-00256 150
500 mm S-00261 110 S-00257 150
750 mm S-00260 110 S-00259 150
1.5 m S-01085 120 S-01093 160
2 m S-01086 120 S-01094 160
5 m S-01087 120 S-01095 160

All components with an € price are available from stock.

Cavity lenses

Cavity lens

Tolerances  
Diameter Ø: +0.0/-0.1 mm
Thickness t: ±0.1 mm
Radius of curvature: ±1%
Centering/Wedge: < 5 min. of arc
Chamfer: 0.1–0.3 mm x 45°
Clear aperture: > 80%
Surface imperf. tol.: 5/3 x 0.025
 

Cavity lenses are positive meniscus lenses, designed for collinear pumping. Back focal length (BFL) is equal to the second radius of curvature:
  
Cavity lenses are optically designed for 514 nm, but can be used in the range 200-2500 nm without significant differences.

 

Scheme cavity lenses

Cavity lens                


Radius
r2 = BFL		UV-FS
Ø 12.7 x 6.35 mm
Article-No.
price
in €
18 mm S-01333 260
25 mm S-01601 240
38 mm S-01602 220
50 mm S-01334 210
75 mm S-01603 200
100 mm S-01604 190
150 mm S-01605 190
200 mm S-01606 180
250 mm S-01607 180
350 mm S-01608 170
500 mm S-01609 170

All components with an € price are available from stock.

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