Aspheric Lenses
Types of aspheric lens
| Injection aspheric plastic lens | General molding aspheric lens | Precision molding aspheric lens | Conventional grinding/polishing aspheric lens | Glass CNC wheel grinding aspheric lens | |
| Material | Plastic | Ordinary glass | Optical glass | Optical glass | Optical glass |
| Precision | High | Low | High | High | High |
| Advantage | Lower unit price in mass production. | Lower price compared to precision molding. Products with large scale. |
Products with small scale. Material with different refractive index. |
Can be produced in small quantity. | Can be produced in small quantity. |
| Disadvantage | Need forming mold, Higher cost for small quantity. | Less selectable materials. Need forming mold. Lower surface accuracy. Higher cost for small quantity. |
Need forming mold, Higher cost for small quantity. Not available for large scales. | Longer processing time. Not available for large curvature. |
Longer processing time. Not available for large curvature. Not available for too small scales dimension. |
