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Symmetric convex lenses are fabricated with the identical convex surface on both sides of the lens. Due to the symmetry, aberrations such as coma, distortion and chromatic aberration are almost cancelled out. These lenses may be combined with other lenses to form complex imaging systems.
Focal Length:  |
n: refractive index
R: radius curvature |
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| Material: |
BK7A |
| Focal Length Tolerance: |
¡À0.5% |
| Diameter Tolerance: |
+0/-0.2mm |
| Thickness Tolerance: |
¡À0.2mm |
| Surface Flatness: |
¦Ë/10 |
| Centration Error: |
<3' |
| Surface Quality: |
20/10 |
| Clear Aperture: |
>90% of central diameter |
| Coating: |
Optional |
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Product Number |
¦Õ |
f' 587.6 |
f'b |
f' 632.8 |
tc |
TBX-06B-010 |
6.0 |
10.0 |
9.1 |
10.0 |
2.5 |
TBX-08B-030 |
8.0 |
30.0 |
29.2 |
30.1 |
2.5 |
TBX-12.7B-50 |
12.7 |
50.0 |
49.2 |
50.2 |
2.5 |
TBX-12.7B-75 |
12.7 |
75.0 |
74.2 |
75.2 |
2.5 |
TBX-12.7B-100 |
12.7 |
100.0 |
99.2 |
100.3 |
2.5 |
TBX-12.7B-145 |
12.7 |
145.0 |
144.2 |
145.5 |
2.5 |
TBX-12.7B-220 |
12.7 |
220.0 |
219.2 |
220.7 |
2.5 |
TBX-12.7B-300 |
12.7 |
300.0 |
299.2 |
301.0 |
2.5 |
TBX-15B-030 |
15.0 |
30.0 |
29.0 |
30.1 |
3.0 |
TBX-20B-50 |
20.0 |
50.0 |
48.8 |
50.2 |
3.5 |
TBX-20B-75 |
20.0 |
75.0 |
74.0 |
75.2 |
3.0 |
TBX-20B-100 |
20.0 |
100.0 |
99.0 |
100.3 |
3.0 |
TBX-20B-145 |
20.0 |
145.0 |
144.2 |
145.5 |
2.5 |
TBX-20B-220 |
20.0 |
220.0 |
219.2 |
220.7 |
2.5 |
TBX-20B-300 |
20.0 |
300.0 |
299.2 |
301.0 |
2.5 |
TBX-25.4B-50 |
25.4 |
50.0 |
48.5 |
50.2 |
4.5 |
TBX-25.4B-75 |
25.4 |
75.0 |
73.8 |
75.2 |
3.5 |
TBX-25.4B-100 |
25.4 |
100.0 |
98.8 |
100.3 |
3.5 |
TBX-25.4B-145 |
25.4 |
145.0 |
144.0 |
145.5 |
3.0 |
TBX-25.4B-220 |
25.4 |
220.0 |
219.0 |
220.7 |
3.0 |
TBX-25.4B-300 |
25.4 |
300.0 |
299.0 |
301.0 |
3.0 |
TBX-38.1B-100 |
38.1 |
100.0 |
98.3 |
100.3 |
5.0 |
TBX-38.1B-145 |
38.1 |
145.0 |
143.7 |
145.5 |
4.0 |
TBX-38.1B-220 |
38.1 |
220.0 |
218.7 |
220.7 |
4.0 |
TBX-38.1B-300 |
38.1 |
300.0 |
298.7 |
301.0 |
4.0 |
TBX-50.8B-220 |
50.8 |
220.0 |
218.3 |
220.7 |
5.0 |
TBX-50.8B-300 |
50.8 |
300.0 |
298.3 |
301.0 |
5.0 |
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¡¤All dimensions are in mm unless otherwise specified.
¡¤Other size and AR coating are available upon request.
¡¤The material of UV Fused Silica is available. |
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