Double-Concave Lens
Double-Concave Lens
Note: The double-concave lens (DCV) is concave on both sides and the focal length is negative, which can be used to reduce the image, diverge the beam, etc.
parameter:
| Incident angle | 0° | wavelength | 587.6nm |
Wavelength range | 430~680nm | index | 430~680nm@Ravg≤0.4% |
Focal length tolerance | ±1% | Finish | 40/20 |
Center thickness tolerance | ±0.1mm | Face type | λ/4 |
List of conventional products:
| Product number | Substrate | focal length | diameter | Center thickness | Radius R1 | Radius R2 | Finish |
D5F3.5 | ZF6 | -33.5 | 5 | 1.50 | -5.70 | 5.70 | 40/20 |
D13F10.6 | ZF62 | -10.60 | 13 | 1.00 | -255.30 | 10.186 | 40/20 |
D13.5F7.8 | ZLAF50 | -7.80 | 13.5 | 1.76 | -8.204 | 29.24 | 40/20 |
D14F7.8 | ZF88 | -7.40 | 14 | 2.00 | -14.47 | 14.47 | 40/20 |
D16F29.9 | ZF6 | -29.90 | 16 | 3 | -45.8 | 45.8 | 40/20 |
D22F30.9 | ZF2 | -30.9 | 22 | 10 | -29.3333 | 81.144 | 40/20 |
D22.5F64.4 | K9 | -64.4 | 22.5 | 2.2 | -209.757 | 39.67 | 40/20 |
D14F61.8 | QF3 | -61.80 | 25 | 10 | -95.226 | 58.79 | 40/20 |
D26F35.6 | ZF7 | -35.6 | 26 | 5 | -77.62 | 46.739 | 40/20 |
D30F42.1 | ZF6 | -42.10 | 30 | 12 | -52.148 | 89.74 | 40/20 |
D40F37 | ZF6 | -37 | 40 | 10.62 | -31.919 | 254.83 | 40/20 |
D56F79.4 | ZF6 | -79.4 | 56 | 7.55 | -71.829 | 380.2 | 40/20 |
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