Double-Convex Lenses are most suitable where the conjugates are on opposite sides of the lenses and the ratio of the distances is less than 5:1, e.g. as simple image relay components.
Application:
●Optical Display System
●Projection Optics System
●Imaging Optics System
●Laser Measurements System
Specification:
Material | BK7 or Fused Silica |
Design Wavelength | 546.1 nm |
Design Index: | |
BK7 | 1.5183 ± 0.0005 |
Fused Silica | 1.46008±0.00005 |
Diameter Tolerance | +0.00, -0.15 mm |
Thickness Tolerance | ±0.2 mm |
Paraxial Focal Length | ±2% |
Centration | <3 arc minutes |
Clear Aperture | >85% |
Surface Irregularity | λ/4@632.8 nm |
Surface Quality | 40-20 scratch and dig |
ProRECtive Bevel | 0.25 mm x 45° |
BK7 Double-Convex Lens Standard Products:
Part No. | f (mm) | Ф(mm) | R1=R2(mm) | t c (mm) | t e(mm) | f b(mm) |
RSD101 | 8.0 | 6.0 | 7.7 | 3.2 | 2.0 | 6.9 |
RSD102 | 10.0 | 10.0 | 9.45 | 4.9 | 2.0 | 8.2 |
RSD103 | 20.0 | 12.7 | 20.01 | 4.0 | 2.0 | 18.6 |
RSD104 | 50.0 | 12.7 | 51.35 | 2.8 | 2.0 | 49.1 |
RSD105 | 75.0 | 12.7 | 77.3 | 2.6 | 2.0 | 74.1 |
RSD106 | 100.0 | 12.7 | 103.25 | 2.4 | 2.0 | 99.2 |
RSD107 | 25.4 | 20.0 | 25.265 | 6.1 | 2.0 | 23.3 |
RSD108 | 25.4 | 25.4 | 24.712 | 9.0 | 2.0 | 22.2 |
RSD109 | 50.0 | 25.4 | 50.92 | 5.2 | 2.0 | 48.3 |
Note: Other material, size and coating are available upon request.
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