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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.

Diameter Dia. Tolerance CT Tolerance Centering Irregularity Surface Quality Bevel
6.00-25.00 +0.00 / -0.10 ±0.2 < 3 minutes 0.5 Waves 40-20 0.25 x 45°
25.01 - 50.00 +0.00 / -0.10 ±0.2 < 3 minutes 0.5 Waves 60-40 0.50 x 45°
>50.00 +0.05 / -0.10 ±0.2 3 - 5 arc min. 1.0 Waves 60-40 0.50 x 45°
Dimensions MM
Clear Aperture CA >= 90% of Diameter
Coating 1/4wave MgF2 @ 550nm (See Coating Chart for Available Options)
Design Wavelength 587.6nm
Focal Length Tolerance ±2%
Edge Thickness Reference
* All dimensions are in mm

Viewing 1 to 30 (310 Total)
Sort by:
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
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L-AOC001
8.0000
16.0000
13.3400
4.91
3.8000
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L-AOC002
6.0000
12.6000
11.2000
2.6000
1.9000
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L-AOC003
8.0000
25.0000
22.6500
5.13
4.4000
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L-AOC004
8.0000
30.0000
27.7900
4.5
4.0000
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L-AOC005
8.5000
20.0000
17.5900
3.9
3.1000
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L-AOC006
8.5000
22.0000
20.2300
3.6
2.6000
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L-AOC007
10.0000
20.0000
17.0300
5.57
4.4000
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L-AOC008
10.0000
30.0000
27.3100
5.7
4.7000
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L-AOC009
9.0000
36.0000
34.1700
4.0000
3.3000
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L-AOC010
12.0000
25.0000
22.2200
5.76
4.0000
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L-AOC011
12.5000
30.0000
27.1900
5.33
4.1000
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L-AOC012
12.7000
63.5000
61.4900
4.5
3.7000
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L-AOC013
16.0000
36.0000
32.4800
7.5
5.2000
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L-AOC014
6.0000
17.3000
15.9000
3.0000
2.4000
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L-AOC015
6.1000
12.0000
10.3600
3.1000
2.4000
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L-AOC016
17.0000
73.0000
70.3800
5.2
4.3000
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L-AOC017
6.2000
15.0000
13.3900
3.5000
2.7000
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L-AOC018
6.2500
10.0000
7.8400
4.09
3.2000
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L-AOC019
17.5000
31.0000
27.3000
8.85
6.2000
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L-AOC020
6.2500
12.5000
10.3700
3.8
3.1000
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L-AOC021
6.2500
15.0000
12.5000
3.5
2.6000
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L-AOC022
18.0000
40.0000
35.4400
8.04
6.1000
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L-AOC023
6.2500
20.0000
18.2300
3.6
3.0000
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L-AOC024
6.2500
25.0000
23.4600
3.2
2.7000
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L-AOC025
18.0000
50.0000
46.9300
5.96
4.2000
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L-AOC026
18.0000
60.0000
57.2100
5.2
4.0000
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L-AOC027
6.2500
30.0000
28.4600
3.2
2.8000
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L-AOC028
18.0000
80.0000
77.4900
5.4
4.2000
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L-AOC029
6.2500
35.0000
33.6000
3.2
2.9000
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