Double-Concave Lens
Double-Concave Lens is like the Plano-Concave lens in that it is used to produce divergent light. The Double-Concave is best used when the input beam is converging.
Specifications:
Material: |
BK7 or Other |
Design Wavelength: |
546.1nm, n=1.518721 |
Diameter Tolerance: |
+0.0, -0.15mm(Standard), +0.0, -0.02mm(Precision) |
Paraxial Focal Length: |
±2% |
Centration: |
3 arc minutes |
Surface Figure : |
l/4 @ 632.8 nm |
Surface Quality: |
40/20 |
Clear Aperture: |
>80% |
Bevel: |
<0.25mm X 45° |
Coating: |
|
| Item# |
Dia(mm) |
f(mm) |
R2=R2(mm) |
Tc |
Te |
Fb |
| BCV1-001 |
6.0 |
15.0 |
15.20 |
2.10 |
1.5 |
14.30 |
| BCX1-002 |
6.0 |
30.0 |
30.83 |
1.79 |
1.5 |
29.42 |
| BCV1-101 |
12.7 |
15.0 |
14.65 |
4.89 |
2.0 |
13.27 |
| BCV1-102 |
12.7 |
20.0 |
20.04 |
4.07 |
2.0 |
18.62 |
| BCV1-103 |
12.7 |
25.0 |
25.35 |
3.62 |
2.0 |
23.82 |
| BCV1-104 |
12.7 |
30.0 |
30.55 |
3.33 |
2.0 |
28.89 |
| BCV1-105 |
12.7 |
40.0 |
41.02 |
2.99 |
2.0 |
39.04 |
| BCV1-106 |
12.7 |
50.0 |
51.40 |
2.79 |
2.0 |
49.08 |
| BCV1-107 |
12.7 |
75.0 |
77.45 |
2.52 |
2.0 |
74.24 |
| BCV1-108 |
12.7 |
100.0 |
103.28 |
2.39 |
2.0 |
99.16 |
| BCV1-201 |
25.4 |
25.0 |
24.72 |
9.02 |
2.0 |
22.24 |
| BCV1-202 |
25.4 |
31.7 |
31.55 |
7.34 |
2.0 |
29.15 |
| BCV1-203 |
25.4 |
35.0 |
35.08 |
6.76 |
2.0 |
32.66 |
| BCV1-204 |
25.4 |
50.0 |
50.93 |
5.22 |
2.0 |
48.22 |
| BCV1-205 |
25.4 |
75.0 |
77.09 |
4.11 |
2.0 |
73.63 |
| BCV1-206 |
25.4 |
100.0 |
103.04 |
3.57 |
2.0 |
98.73 |
| BCV1-207 |
25.4 |
125.0 |
129.12 |
3.25 |
2.0 |
123.92 |
| BCV1-208 |
25.4 |
150.0 |
155.10 |
3.04 |
2.0 |
149.00 |
| BCV1-209 |
25.4 |
175.0 |
181.13 |
2.89 |
2.0 |
174.12 |
| BCV1-210 |
25.4 |
200.0 |
207.00 |
2.78 |
2.0 |
199.07 |
| BCV1-211 |
25.4 |
250.0 |
258.90 |
2.62 |
2.0 |
249.12 |
| BCV1-212 |
25.4 |
300.0 |
310.80 |
2.52 |
2.0 |
299.17 |
| BCV1-213 |
25.4 |
500.0 |
518.30 |
2.31 |
2.0 |
499.21 |
| BCV1-214 |
25.4 |
1000.0 |
1037.10 |
2.16 |
2.0 |
999.32 |
| BCV1-301 |
38.0 |
45.0 |
44.87 |
10.44 |
2.0 |
41.46 |
| BCV1-302 |
38.0 |
50.0 |
49.97 |
10.50 |
3.0 |
46.40 |
| BCV1-303 |
38.0 |
100.0 |
102.57 |
6.55 |
3.0 |
97.78 |
| BCV1-304 |
38.0 |
150.0 |
154.70 |
5.34 |
3.0 |
148.23 |
| BCV1-305 |
38.0 |
200.0 |
206.70 |
4.75 |
3.0 |
198.46 |
| BCV1-306 |
38.0 |
350.0 |
362.40 |
4.00 |
3.0 |
348.66 |
| BCV1-307 |
38.0 |
500.0 |
518.10 |
3.70 |
3.0 |
498.79 |
| BCV1-308 |
38.0 |
700.0 |
725.60 |
3.50 |
3.0 |
698.84 |
| BCV1-309 |
40.0 |
63.5 |
64.42 |
8.27 |
1.9 |
60.70 |
| BCV1-501 |
50.0 |
100.0 |
102.06 |
9.20 |
3.0 |
96.90 |
| BCV1-502 |
50.0 |
150.0 |
154.27 |
7.10 |
3.0 |
147.60 |
| BCV1-503 |
50.0 |
200.0 |
206.28 |
6.00 |
3.0 |
198.00 |
| BCV1-504 |
50.0 |
250.0 |
258.22 |
5.40 |
3.0 |
248.20 |
| BCV1-505 |
50.0 |
400.0 |
413.87 |
4.50 |
3.0 |
398.50 |
| BCV1-506 |
50.0 |
450.0 |
465.73 |
4.30 |
3.0 |
448.60 |
| BCV1-507 |
50.0 |
500.0 |
517.58 |
4.20 |
3.0 |
448.60 |
| BCV1-508 |
50.0 |
600.0 |
621.28 |
4.00 |
3.0 |
598.70 |
| BCV1-509 |
50.0 |
800.0 |
828.64 |
3.8 |
3.0 |
798.70 |
|
