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 91 to 120 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX091
18.0000
75.0000
74.3900
2.6000
1.6000
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L-BCX092
18.0000
100.0000
99.5700
2.3000
1.5000
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L-BCX093
18.0000
125.0000
124.7200
2.1000
1.5000
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L-BCX094
18.0000
150.0000
149.8400
2.0000
1.5000
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L-BCX095
18.0000
200.0000
200.0400
1.9000
1.5000
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L-BCX096
18.0000
250.0000
250.2400
1.8000
1.5000
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L-BCX097
18.0000
350.0000
350.6100
1.7000
1.5000
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L-BCX098
20.0000
22.0000
19.6700
6.9000
2.0000
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L-BCX099
20.0000
25.0000
23.3000
5.0000
0.9000
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L-BCX100
20.0000
25.4000
23.4000
6.10
2.0000
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L-BCX101
150.0000
330.0000
322.3100
23.00
6.3000
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L-BCX102
21.0000
20.0000
17.1600
8.2000
2.0000
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L-BCX103
22.4000
25.0000
22.5600
7.30
1.9000
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L-BCX104
22.4000
30.0000
27.9500
6.30
2.0000
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L-BCX105
22.4000
80.0000
79.1300
3.50
2.0000
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L-BCX106
22.4000
100.0000
99.3000
3.20
2.0000
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L-BCX107
22.4000
150.0000
149.6300
2.80
2.0000
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L-BCX108
25.0000
25.0000
22.1100
8.50
1.6000
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L-BCX109
25.0000
38.1000
36.0700
6.00
1.9000
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L-BCX110
25.0000
30.0000
27.6900
7.00
1.5000
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L-BCX111
25.0000
35.0000
32.8300
6.60
2.0000
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L-BCX112
25.0000
40.0000
38.1500
5.90
1.9000
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L-BCX113
25.0000
54.0000
52.4300
4.7000
1.9000
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L-BCX114
25.0000
60.0000
58.8300
4.10
1.5000
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L-BCX115
25.0000
75.0000
73.9500
4.00
2.0000
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L-BCX117
25.0000
100.0000
99.3400
3.00
1.5000
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L-BCX118
25.0000
125.0000
124.4100
3.20
2.0000
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L-BCX119
25.0000
150.0000
149.6700
2.50
1.5000
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L-BCX120
25.0000
175.0000
174.0200
3.20
2.3000
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L-BCX121
25.0000
200.0000
199.9100
2.30
1.5000
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