Standard Achromats

These lenses consist of two optical elements, usually of crown and flint glass types, cemented together to form an achromatic doublet. Most often, the crown lens is a biconvex positive lens. Due to the difference in refractive indices, chromatic aberration with respect to two selected wavelengths has been corrected. The lenses have been corrected for on-axis spherical aberration as well. Achromatic doublets are used as telescope objectives, eye loupes, magnifying glasses and eyepieces. Achromatic doublets have also been used to focus and manipulate laser beams because their image quality is superior to single lenses.

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Part Number

Diameter

Effective Focal Length

Back Focal Length

Center Thickness

Edge Thickness

L-AOC000

6.0000

10.0000

7.5200

4.75

3.5000

L-AOC001

8.0000

16.0000

13.3400

4.91

3.8000

L-AOC002

6.0000

12.6000

11.2000

2.6000

1.9000

L-AOC003

8.0000

25.0000

22.6500

5.13

4.4000

L-AOC004

8.0000

30.0000

27.7900

4.5

4.0000

L-AOC005

8.5000

20.0000

17.5900

3.9

3.1000

L-AOC006

8.5000

22.0000

20.2300

3.6

2.6000

L-AOC007

10.0000

20.0000

17.0300

5.57

4.4000

L-AOC008

10.0000

30.0000

27.3100

5.7

4.7000

L-AOC009

9.0000

36.0000

34.1700

4.0000

3.3000

L-AOC010

12.0000

25.0000

22.2200

5.76

4.0000

L-AOC011

12.5000

30.0000

27.1900

5.33

4.1000

L-AOC012

12.7000

63.5000

61.4900

4.5

3.7000

L-AOC013

16.0000

36.0000

32.4800

7.5

5.2000

L-AOC014

6.0000

17.3000

15.9000

3.0000

2.4000

L-AOC015

6.1000

12.0000

10.3600

3.1000

2.4000

L-AOC016

17.0000

73.0000

70.3800

5.2

4.3000

L-AOC017

6.2000

15.0000

13.3900

3.5000

2.7000

L-AOC018

6.2500

10.0000

7.8400

4.09

3.2000

L-AOC019

17.5000

31.0000

27.3000

8.85

6.2000

L-AOC020

6.2500

12.5000

10.3700

3.8

3.1000

L-AOC021

6.2500

15.0000

12.5000

3.5

2.6000

L-AOC022

18.0000

40.0000

35.4400

8.04

6.1000

L-AOC023

6.2500

20.0000

18.2300

3.6

3.0000

L-AOC024

6.2500

25.0000

23.4600

3.2

2.7000

L-AOC025

18.0000

50.0000

46.9300

5.96

4.2000

L-AOC026

18.0000

60.0000

57.2100

5.2

4.0000

L-AOC027

6.2500

30.0000

28.4600

3.2

2.8000

L-AOC028

18.0000

80.0000

77.4900

5.4

4.2000

L-AOC029

6.2500

35.0000

33.6000

3.2

2.9000