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 181 to 210 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX149
30.0000
200.0000
199.7100
3.10
2.0000
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L-BCX206
42.0000
400.0000
400.4400
3.1000
2.0000
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L-BCX082
15.0000
50.0000
49.0000
3.00
1.9000
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L-BCX117
25.0000
100.0000
99.3400
3.00
1.5000
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L-BCX045
11.0000
50.0000
49.0000
3.0000
2.4000
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L-BCX271
100.0000
125.0000
116.5200
26.00
5.1000
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L-BCX230
50.8000
38.1000
28.5400
25.3600
3.0000
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L-BCX252
75.0000
75.0000
66.8300
24.10
3.5000
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L-BCX244
60.0000
50.8000
42.4500
23.7000
2.8000
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L-BCX101
150.0000
330.0000
322.3100
23.00
6.3000
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L-BCX272
100.0000
150.0000
143.5300
20.80
3.9000
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L-BCX007
7.5000
15.0000
14.0700
2.90
2.0000
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L-BCX211
47.0000
600.0000
601.2000
2.9000
2.0000
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L-BCX058
12.5000
30.0000
29.1600
2.80
1.5000
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L-BCX107
22.4000
150.0000
149.6300
2.80
2.0000
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L-BCX018
6.3000
12.7000
11.7900
2.8000
2.0000
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L-BCX053
12.0000
72.0000
71.1000
2.8000
2.3000
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L-BCX197
42.0000
500.0000
500.8300
2.8000
2.0000
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L-BCX033
9.0000
13.5000
12.5500
2.7500
1.2000
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L-BCX035
9.0000
27.0000
26.0800
2.7400
2.0000
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L-BCX052
12.0000
48.0000
47.0900
2.7400
2.0000
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L-BCX042
10.0000
33.0000
32.2200
2.7000
2.0000
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L-BCX168
38.0000
500.0000
500.7800
2.7000
2.0000
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L-BCX207
42.0000
600.0000
601.2300
2.7000
2.0000
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L-BCX009
6.0000
24.0000
23.1300
2.60
2.2000
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L-BCX281
9.0000
18.0000
17.1200
2.60
1.5000
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L-BCX059
12.5000
35.0000
34.2500
2.60
1.5000
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L-BCX724
22.4000
200.0000
199.8800
2.60
2.0000
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L-BCX229
50.0000
1000.0000
1003.2000
2.60
2.0000
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L-BCX091
18.0000
75.0000
74.3900
2.6000
1.6000
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