Meniscus

Meniscus Lenses

Optola offers wide range of high quality meniscus lenses.

Custom design meniscus lenses are available upon request.

       MSL           –            254            –           515        –         1000         –         BK7   

          ↓                              ↓                               ↓                          ↓                        ↓

Product Code    Diameter  25.4mm   R1 = 51.56mm    R2 = -100mm       Material

 

Part Number

Dia(mm)

Tc(mm)

Te(mm)

R1(mm)

R2(mm)

EFL(mm)

Material

MSL-254-R515-R1000-BK7

25.4

4.28

3.5

51.56

-100

200

BK7

MSL-254-R857-R2500-BK7

25.4

4.12

3.5

85.7

-250

250

BK7

MSL-254-R1025-R3000-BK7

25.4

4.02

3.5

102.58

-300

300

BK7

MSL-254-R1266-R3220-BK7

25.4

3.89

3.5

126.66

-322

400

BK7

MSL-254-R1554-R3876-BK7

25.4

3.81

3.5

155.466

-387.6

500

BK7

Note

     Other sizes and focal length are available upon request. Also the lens ring mounts are available upon required.

Material

BK7 or UV fused silica

Focal Length Tolerance

±1% @589nm

Design Wavelength

589nm

Centration

≤3′

Diameter Tolerance

+0/-0.1mm

Clear Aperture

>≥ central 90%  of  diameter

Center Thickness  Tolerance

±0.1mm

Edge Thickness

3.5 mm , nominal

Surface Quality

20/10(UVFS)/ 40/20(BK7)

Surface Accuracy

≤ 1.5λ power,λ/2 irregularity(UVFS)

≤ 1.5λ power,λ/4 irregularity(BK7)

Chamfers

0-0.8mm face width×45°±15°

Leave a Reply