Customizable K9 Optical Biconcave Lens with AR Coating for Precision Optical Applications
Biconcave Lenses are similar to plano-concave lenses in that they have a negative focal length, but light rays traveling in planarly are diverted outward. The radii of curvature of the two surfaces of the biconcave lens are equal, and they are generally used for beam expansion and to increase the focal length of a system, such as projection. They are generally used for expanding light and increasing the focal length in systems such as projection.
| Production Name | Biconcave Lenses |
|---|---|
| Customized support | OEM, ODM |
| Place of Origin | China |
| Model Number | BL |
| Material | K9, optical glass, UV quartz, fluorine |
| Focal length(f) | ±2%@587.6nm |
| Dimensional tolerances | -0.05~0.1mm |
| Center thickness tolerance | ±0.03~0.1mm |
| Centering(arcmin) | 30"~3' |
| Power | 1~5 |
| Irregularity | 0.2~0.5 |
| Surface quality | 60-40 40-20 |
| Clear aperture | >90% |
| Coating | AR coating |
| Diameter | Focal length | Back focal Length | Center thickness | Edge thickness | Radius of curvature |
|---|---|---|---|---|---|
| 6.0mm | -6.0mm | -6.1mm | 1.5mm | 2.5mm | -9.7mm |
| 9.0mm | -9.0mm | -9.5mm | 2.0mm | 3.4mm | -14.7mm |
| 12.7mm | -15.0mm | -15.8mm | 3.0mm | 4.7mm | -24.0mm |
| 12.7mm | -50.0mm | -51.1mm | 3.5mm | 4.3mm | -52.1mm |
| 25.4mm | -25.0mm | -25.8mm | 3.0mm | 7.2mm | -3.6mm |
| 25.4mm | -50.0mm | -51.0mm | 3.0mm | 6.1mm | -52.0mm |
| 25.4mm | -75.0mm | -76.1mm | 3.5mm | 5.6mm | -77.9mm |
| 50.0mm | -100.0mm | -101.6mm | 5.0mm | 11.3mm | -104.55mm |
| 50.0mm | -125.0mm | -126.6mm | 5.0mm | 9.95mm | -130.48mm |
| 75.0mm | -150.0mm | -151.8mm | 5.0mm | 14.42mm | -156.57mm |
U-safe Technology Co., Limited (hereinafter shorted as U-SAFE) is legally registered in Hong Kong, which is a B2B trading company trying to build the bridge of business between Chinese factories and all overseas importers, helps you to get the correct products / solution safely, easier and faster. Office is located in IC PARk Shenzhen China for the convenience of closer coordination with factories.
Any questions, welcome to talk with our sales, you will be replied in 24 hours at the latest!
We support:
- R&D / OEM
- Production process follow up
- Customizing package
- Inspection before delivery
- Shipping with difference terms, EXW, FOB, FCA, CNF, CIF, DOOR TO DOOR by sea, by air, by express, by post
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