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 31 to 60 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX030
25.4000
25.4000
21.8100
10.13
3.0000
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L-BCX031
25.4000
31.7000
29.3100
7.30
2.0000
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L-BCX032
7.5000
10.0000
8.8100
3.50
2.0000
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L-BCX033
9.0000
13.5000
12.5500
2.7500
1.2000
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L-BCX034
25.4000
38.1000
36.1000
6.30
2.0000
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L-BCX035
9.0000
27.0000
26.0800
2.7400
2.0000
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L-BCX036
9.0000
36.0000
35.1500
2.5500
2.0000
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L-BCX037
9.2000
9.3000
7.9500
3.8000
1.3000
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L-BCX038
32.1000
60.0000
55.7900
12.9000
8.5000
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L-BCX039
32.1000
65.5000
62.5400
9.4000
5.5000
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L-BCX040
10.0000
9.8000
8.6500
3.30
0.5000
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L-BCX041
35.0000
60.0000
55.7900
12.90
7.7000
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L-BCX042
10.0000
33.0000
32.2200
2.7000
2.0000
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L-BCX043
36.3000
53.0000
50.6200
7.5000
1.2000
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L-BCX044
36.3000
65.0000
62.0700
9.4000
4.3000
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L-BCX045
11.0000
50.0000
49.0000
3.0000
2.4000
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L-BCX046
12.0000
12.0000
14.1800
3.8500
1.4000
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L-BCX047
40.0000
75.0000
72.5200
7.40
2.1000
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L-BCX048
39.1000
100.0000
97.6600
8.0000
4.2000
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L-BCX049
12.0000
24.0000
22.9300
4.00
2.5000
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L-BCX050
12.0000
30.0000
28.7500
3.70
2.5000
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L-BCX051
12.0000
36.0000
34.9100
3.3000
2.3000
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L-BCX052
12.0000
48.0000
47.0900
2.7400
2.0000
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L-BCX053
12.0000
72.0000
71.1000
2.8000
2.3000
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L-BCX054
100.0000
1000.0000
1000.8800
7.40
5.0000
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L-BCX055
12.5000
15.0000
13.5600
4.30
1.5000
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L-BCX056
50.8000
100.0000
97.0800
9.44
3.0000
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L-BCX057
12.5000
25.0000
24.0400
3.10
1.5000
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L-BCX058
12.5000
30.0000
29.1600
2.80
1.5000
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L-BCX059
12.5000
35.0000
34.2500
2.60
1.5000
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