Aspherical/Specialty Lenses
Ultra Micro Lenses
Molded aspheric glass lenses with 0.35 and over in diameter
Using high refractive index glass materials for our ultra micro lens allows an objective lens in a fiberscope to take a wider field of view.
Applications
- Objective lens used in a small diameter fiberscope, for the purpose of wider angle of view
Specifications
| Diameter*1 | φ0.35 mm and over |
|---|---|
| Center thickness | 0.2 mm – 5 mm |
| Lens shape | Plano, biconvex, biconcave, and convex-concave (meniscus) |
| Curvature radius | More than 0.4 mm of curvature |
| Coating | AR coating or other coatings available upon request |
| Note*2 | Cover glass can be attached for biconvex and biconcave shaped lens |
- *1 Please contact us for lens of which size is smaller than φ0.35 mm.
- *2 Since some shapes cannot be formed, please contact us for details.
Accuracy
| Tolerance | Standard precision value | Best measurement value |
|---|---|---|
| Diameter | ± 0.01 mm | ± 0.003 mm |
| Center thickness | ± 0.02 mm | ± 0.005 mm |
| Deviation and irregularity | 5 (3) | 3 (1) |
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