Double-Convex Lens
A double-convex lens includes an entrance surface and an exit surface. It is characterized by a longer focal length at the central part of the lens surfaces and a shorter focal length at the edges. Do..
Product Description
A double-convex lens includes an entrance surface and an exit surface. It is characterized by a longer focal length at the central part of the lens surfaces and a shorter focal length at the edges. Double-convex lenses are mainly used to converge light from a point source or transfer images to other optical systems.
| Project | Performance Parameters | High Precision |
| Material | BK7 or UV fused silica | |
| Specifications | D7.99, D12.7, D25.4, D30, D37 | |
| Dimension Tolerance | ±0.1 mm | ±0.02 mm |
| Focal Length Tolerance | ±1% | ±0.5% |
| Centration | ≤3 arcmin | ≤1.5 arcmin |
| Flatness (within clear aperture) | λ/4 | λ/8 |
| Surface Quality | 20-10 | 10-5 |
| Edge Chip | <0.2 | <0.05 |
| Bevel | 0.1~0.5×45° | |
| Coating | 532 nm, 850 nm, 1064 nm, 1260–1650 nm (customizable) | |