Bi-Convex_Lens.jpg

Bi-Convex Lens

Bi-convex lenses have a positive focal length. Our catalog bi-convex lenses have an identical curvature on both sides of the lens and are therefore symmetric. At unit conjugation, coma and distortion cancel out due to the symmetry. They can be used to focus incoming light.

 

Below are our standard specifications. 
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Diameter Dia. Tolerance CT Tolerance Centering Irregularity Surface Quality Bevel
3.00-6.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 40-20 0.25 x 45°
6.00-25.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 40-20 0.25 x 45°
25.01 - 50.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 60-40 0.50 x 45°
50.01-100.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 60-40 0.50 x 45°
100.01-150.00 +0.05 / -0.10 ±0.2 3 - 5 arc min. 1Waves 80-50 1.00 x 45°
Dimensions MM
Clear Aperture CA >= 90% of Diameter
Coating Uncoated, Specify your coating (See Coating Chart for Available Options)
Design Wavelength 587.6nm
Focal Length Tolerance ±2%
Edge Thickness Reference
* All dimensions are in mm

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Viewing 61 to 90 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX060
50.8000
200.0000
198.3800
6.14
3.0000
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L-BCX061
12.5000
40.0000
39.3000
2.50
1.5000
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L-BCX062
12.5000
50.0000
49.4000
2.30
1.5000
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L-BCX063
12.5000
60.0000
59.5000
2.10
1.5000
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L-BCX064
12.5000
75.0000
74.5900
2.00
1.5000
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L-BCX065
12.5000
100.0000
99.7000
1.90
1.5000
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L-BCX066
12.5000
125.0000
124.8200
1.80
1.5000
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L-BCX067
12.5000
150.0000
149.9400
1.70
1.5000
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L-BCX068
12.5000
200.0000
200.1100
1.70
1.5000
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L-BCX069
12.5000
250.0000
250.2700
1.70
1.6000
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L-BCX070
12.7000
12.7000
10.2700
6.68
3.0000
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L-BCX071
12.7000
19.0000
17.1900
5.2200
3.0000
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L-BCX072
12.7000
25.4000
24.2800
3.60
2.0000
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L-BCX074
12.7000
62.9000
61.5300
3.6200
3.0000
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L-BCX075
12.7000
75.6000
74.3400
3.5200
3.0000
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L-BCX076
13.0000
17.0000
15.7700
3.6000
1.0000
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L-BCX077
13.0000
18.0000
16.5500
4.4000
2.0000
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L-BCX078
15.0000
22.0000
21.0100
4.5000
1.9000
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L-BCX079
15.0000
19.0000
17.6000
4.1000
1.0000
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L-BCX080
15.0000
22.5000
21.2900
4.2000
2.5000
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L-BCX081
15.0000
30.0000
28.8300
4.00
2.1000
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L-BCX082
15.0000
50.0000
49.0000
3.00
1.9000
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L-BCX083
17.3000
30.0000
28.8600
3.4000
0.9000
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L-BCX084
17.5000
18.0000
15.8700
6.10
1.5000
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L-BCX085
18.0000
20.0000
18.0200
5.9000
1.5000
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L-BCX086
18.0000
25.0000
23.4100
4.9000
1.6000
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L-BCX087
18.0000
27.0000
25.2600
5.50
2.4000
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L-BCX088
18.0000
35.0000
33.8400
3.80
1.5000
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L-BCX089
18.0000
36.0000
34.6000
4.8000
2.6000
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L-BCX090
18.0000
50.0000
49.1300
3.10
1.5000
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