Home / Custom / Optical Components / Optical Spherical Lens / Double Convex Lens 
The double convex lens/mirror is symmetrical across both its horizontal and vertical axis. Each of the lens's two faces can be thought of as originally being part of a sphere. The fact that a double convex lens/mirror is thicker across its middle is an indicator that it will converge rays of light that travel parallel to its principal axis. A double convex lens/mirror is a converging lens. A double concave lens/mirror is also symmetrical across both its horizontal and vertical axis.
| Items | Parameters |
|---|---|
| Material | Optical glass/ Fused silica/ sapphire etc. |
| Diameter | 2mm~300mm |
| Diameter Tolerance | ±0.05mm(≤50mm) |
| ±0.1mm(＞50mm) | |
| Focal Length | 50mm~2000mm |
| Focal Length Tolerance | ±0.2%（＜10mm） |
| ±0.5%（＜10mm-1000mm） | |
| ±1%（＞1000mm） | |
| Center Thickness | 2mm~20mm |
| Surface Quality | 60/40, 40/20, 20/10 |
| Surface Accuracy | λ/2~λ/10@632.8nm, 532nm |
| Clear Aperture | >85% dig diameter |
| Center Deviation | <3arc min~ 30arc sec |
| Coating | According to customer requirements. |
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