|
Double Concave Lens
| Double Concave Lens (aslo named Bi-Concave Lens) is used
to divergent light. The Bi-Concave is best used when the input beam
is converging. It is used in beam expanders,. Projection optics
systems, optical viewers and optical charater readers
etc. |
General Specifications |
Parameter |
Commercial Grade |
Substrate Material |
BK7 grade A optical glass, Fused Silica,
Sapphire etc. |
| Design Wavelength |
546.1nm |
Diameter Tolerance |
+0/-0.15mm |
Focal Length Tolerance |
+/-2%@546.1nm |
Clear Aperture |
>Central 85% of diameter |
Surface Quality |
60-40 S/D |
Centration |
< 3 arc minutes |
Surface Accuracy |
¦Ë/4@632.8nm |
Chamfer |
0.25mm x 45¡ã |
Coating |
Uncoated |
BK7 Double Concave Lens Standard Products:
Part No. |
f(mm) |
¦Õ(mm) |
R1=R2(mm) |
tc (mm) |
te (mm) |
fb (mm) |
LDV0101 |
-10.0 |
10.0 |
10.70 |
2.0 |
4.5 |
-10.6 |
LDV0201 |
-15.0 |
12.7 |
15.88 |
2.0 |
4.6 |
-15.6 |
LDV0202 |
-20.0 |
12.7 |
21.07 |
2.0 |
4.0 |
-20.6 |
LDV0203 |
-25.0 |
12.7 |
26.25 |
2.0 |
3.6 |
-25.7 |
LDV0204 |
-30.0 |
12.7 |
31.44 |
2.0 |
3.3 |
-30.7 |
LDV0205 |
-40.0 |
12.7 |
41.80 |
2.0 |
3.0 |
-40.7 |
LDV0206 |
-50.0 |
12.7 |
52.17 |
2.0 |
2.8 |
-50.7 |
LDV0301 |
-35.0 |
25.4 |
36.62 |
2.0 |
6.5 |
-35.7 |
LDV0302 |
-50.0 |
25.4 |
52.17 |
2.0 |
5.1 |
-50.7 |
LDV0303 |
-75.0 |
25.4 |
78.09 |
2.0 |
4.1 |
-75.7 |
LDV0304 |
-100.0 |
25.4 |
104.00 |
2.0 |
3.6 |
-100.7 |
LDV0305 |
-125.0 |
25.4 |
129.92 |
2.0 |
3.2 |
-125.7 |
LDV0306 |
-150.0 |
25.4 |
155.83 |
2.0 |
3.0 |
-150.7 |
LDV0307 |
-175.0 |
25.4 |
181.75 |
2.0 |
2.9 |
-175.7 |
LDV0308 |
-200.0 |
25.4 |
207.66 |
2.0 |
2.8 |
-200.7 |
LDV0309 |
-250.0 |
25.4 |
259.49 |
2.0 |
2.6 |
-250.7 |
LDV0310 |
-300.0 |
25.4 |
311.32 |
2.0 |
2.5 |
-300.7 |
LDV0311 |
-500.0 |
25.4 |
518.64 |
2.0 |
2.3 |
-500.7 |
LDV0312 |
-1000.0 |
25.4 |
1036.94 |
2.0 |
2.2 |
-1000.7 |
LDV0401 |
-50.0 |
38.0 |
52.34 |
3.0 |
10.1 |
-51.0 |
LDV0402 |
-100.0 |
38.0 |
104.17 |
3.0 |
6.5 |
-101.0 |
LDV0403 |
-150.0 |
38.0 |
156.00 |
3.0 |
5.3 |
-151.0 |
LDV0405 |
-200.0 |
38.0 |
207.83 |
3.0 |
4.7 |
-201.0 |
LDV0406 |
-350.0 |
38.0 |
363.32 |
3.0 |
4.0 |
-351.0 |
LDV0407 |
-500.0 |
38.0 |
518.81 |
3.0 |
3.7 |
-501.0 |
LDV0408 |
-700.0 |
38.0 |
726.13 |
3.0 |
3.5 |
-701.0 |
LDV0501 |
-100.0 |
50.0 |
104.17 |
3.0 |
9.1 |
-101.0 |
LDV0502 |
-150.0 |
50.0 |
156.00 |
3.0 |
7.0 |
-151.0 |
LDV0503 |
-200.0 |
50.0 |
207.83 |
3.0 |
6.0 |
-201.0 |
LDV0504 |
-250.0 |
50.0 |
259.66 |
3.0 |
5.4 |
-251.0 |
LDV0505 |
-400.0 |
50.0 |
415.15 |
3.0 |
4.5 |
-401.0 |
LDV0506 |
-450.0 |
50.0 |
466.91 |
3.0 |
4.3 |
-451.0 |
LDV0507 |
-500.0 |
50.0 |
518.82 |
3.0 |
4.2 |
-501.0 |
LDV0508 |
-600.0 |
50.0 |
622.47 |
3.0 |
4.0 |
-601.0 |
LDV0509 |
-800.0 |
50.0 |
829.73 |
3.0 |
3.8 |
-801.0 |
Fused Silica Double Concave Lens Standard Products:
Part No. |
f(mm) |
¦Õ(mm) |
R1=R2(mm) |
tc (mm) |
te (mm) |
fb (mm) |
LDV1201 |
-15.0 |
12.7 |
14.110 |
2.0 |
5.0 |
-15.7 |
LDV1202 |
-20.0 |
12.7 |
18.710 |
2.0 |
4.2 |
-20.7 |
LDV1203 |
-25.0 |
12.7 |
23.320 |
2.0 |
3.7 |
-25.7 |
LDV1204 |
-30.0 |
12.7 |
27.920 |
2.0 |
3.5 |
-30.7 |
LDV1205 |
-40.0 |
12.7 |
37.12 |
2.0 |
3.1 |
-40.7 |
LDV1301 |
-25.0 |
25.4 |
23.320 |
2.0 |
9.5 |
-25.7 |
LDV1302 |
-35.0 |
25.4 |
32.520 |
2.0 |
7.2 |
-35.7 |
LDV1303 |
-50.0 |
25.4 |
46.32 |
2.0 |
5.6 |
-50.7 |
LDV1304 |
-75.0 |
25.4 |
69.33 |
2.0 |
4.3 |
-75.7 |
LDV1305 |
-100.0 |
25.4 |
92.33 |
2.0 |
3.8 |
-100.7 |
LDV1306 |
-150.0 |
25.4 |
138.34 |
2.0 |
3.2 |
-150.7 |
LDV1307 |
-200.0 |
25.4 |
184.35 |
2.0 |
2.9 |
-200.7 |
LDV1308 |
-250.0 |
25.4 |
230.36 |
2.0 |
2.7 |
-250.7 |
LDV1309 |
-300.0 |
25.4 |
276.36 |
2.0 |
2.6 |
-300.7 |
LDV1310 |
-500.0 |
25.4 |
460.40 |
2.0 |
2.4 |
-500.7 |
LDV1311 |
-1000.0 |
25.4 |
920.48 |
2.0 |
2.2 |
-1000.7 |
LDV1401 |
-50.0 |
38.0 |
46.48 |
3.0 |
11.1 |
-51.0 |
LDV1402 |
-100.0 |
38.0 |
92.49 |
3.0 |
6.9 |
-101.0 |
LDV1403 |
-150.0 |
38.0 |
138.50 |
3.0 |
5.6 |
-151.0 |
LDV1404 |
-200.0 |
38.0 |
184.50 |
3.0 |
5.0 |
-201.0 |
LDV1405 |
-350.0 |
38.0 |
322.53 |
3.0 |
4.1 |
-351.0 |
LDV1406 |
-500.0 |
38.0 |
460.55 |
3.0 |
3.8 |
-501.0 |
Note: Ohter material Double Concave Lenses, Cutting Lenses, Square Lenses, Rectangle Lenses
and Coatings are available upon requestment.
The general
tolerance specifications above provide a guideline regarding
manufacturing capabilities for optics ranging in size from diameter
1-350mm. The manufacturing limits are not absolute; tighter
tolerances may be possible. Part specific tolerances may vary
depending on component size, shape, and/or material. |
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