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 121 to 150 (284 Total)
Sort by:
Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX122
25.0000
250.0000
250.1400
2.10
1.5000
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L-BCX123
25.0000
300.0000
300.3400
2.00
1.5000
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L-BCX124
25.0000
400.0000
400.7100
1.90
1.5000
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L-BCX125
25.0000
500.0000
501.0700
1.80
1.5000
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L-BCX126
25.4000
19.0000
13.2900
14.7200
3.0000
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L-BCX127
25.4000
50.2000
48.1100
6.22
3.0000
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L-BCX128
25.4000
62.9000
61.2100
5.5400
3.0000
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L-BCX129
25.4000
75.6000
74.0700
5.10
3.0000
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L-BCX130
25.4000
88.3000
86.5400
4.7900
3.0000
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L-BCX131
25.4000
88.9000
87.9700
3.8000
2.0000
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L-BCX132
25.4000
100.0000
98.4900
4.57
3.0000
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L-BCX133
25.4000
125.0000
123.2900
4.25
3.0000
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L-BCX134
25.4000
150.0000
148.4100
4.04
3.0000
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L-BCX135
25.4000
175.0000
173.4900
3.89
3.0000
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L-BCX136
25.4000
200.0000
198.7800
3.78
3.0000
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L-BCX137
25.4000
500.0000
498.9400
3.31
3.0000
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L-BCX138
25.4000
1000.0000
998.9600
3.15
3.0000
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L-BCX139
29.0000
82.0000
80.8100
4.50
2.0000
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L-BCX140
30.0000
30.0000
26.5000
10.30
2.0000
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L-BCX141
30.0000
38.1000
35.5500
7.5000
1.4000
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L-BCX142
30.0000
50.0000
47.9900
6.50
2.0000
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L-BCX143
30.0000
63.5000
61.4900
6.0000
2.5000
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L-BCX144
30.0000
70.0000
68.5300
5.2000
2.0000
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L-BCX145
30.0000
75.0000
73.3500
4.96
2.0000
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L-BCX146
30.0000
90.0000
88.5300
4.4000
2.0000
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L-BCX147
30.0000
100.0000
98.9700
4.20
2.0000
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L-BCX148
30.0000
150.0000
149.4000
3.50
2.1000
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L-BCX149
30.0000
200.0000
199.7100
3.10
2.0000
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L-BCX150
30.0000
500.0000
501.1600
2.40
2.0000
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L-BCX151
30.0000
1000.0000
1003.2600
2.20
2.0000
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