SPHERICAL LENSES
Produces a variety of customised high quality spherical lenses for all UV to IR applications with a wide range of size and shape from various substrates, including N-HK7, Calcium Flouride, UV fused Silica and Silicon.
Spherical Lenses Manufacturing capabilities:
| Parameters | Typical specification | Precision specification |
|---|---|---|
| Diameter (3 ~ 100mm) | +0/- 0.03 mm | +0/-0.010 mm |
| Center thickness | < 1’+/- 0.05 mm | +/- 0.02 mm |
| Sag height | +/- 0.02 mm | +/- 0.01 mm |
| Irregularity on diameter 30 mm | < 0.5 Fringe | < 0.2 Fringe |
| Irregularity on diameter 50 mm | < 1 Fringes | <0.3 Fringe |
| Surface defects (ISO 10110) | 60-405/3 x 0.25 | 5/1 x 0.10 |
| Surface defects (MIL-O-13830) | 60-40 | 10-5 |
| Centering error (reflection) | 3/1.5’ | 3/0.5’ |
| Centering error (transmission) | <1.5’ | <0.5’ |
Note: The capability in achieving a specific requirement is affected by other factors.Please contact us for more details.
PLANO-CONVEX
- To minimize spherical aberrations.
- For Collimating and Focussing Light Rays.
BI-CONVEX
- For positive image conjugate ratios between 0.2 to 5.
- Used in Magnifiers and Imaging systems.
PLANO-CONCAVE
- To expand a collimated light beam or increase the focal lengths in an optical system.
- Used in Telescopes, Collimators and Condensers.
BI-CONCAVE
- To expand a collimated light beam or increase the focal lengths in an optical system.
- Used in Projection Systems, Laser Beam Expanders, Viewers and Optical Character Readers.
ACHROMATIC LENSES
- To eliminate chromatic aberrations and reduce spherical.
- Better Optical Performance than singlet lenses.
- Used in Collimators, Focusing Lenses and Imaging.