Plano-Concave Lenses
Plano-concave lenses diverge light.
One side is flat while the other side is concave, resulting in a negative focal length. Plano-concave lenses are ideal for beam expansion applications, light projection, or adjusting the focal length of expansion. We offer uncoated lenses as well as a wide variety of anti-reflection coated plano-concave lenses suitable for your application.
Specification parameters
| Dia（mm） | 6.00 - 50.80 | CT（mm） | 1.50 - 4.40 |
| Clear Aperture | >90% | Design Wavelength | 632.8nm |
| Diameter Tolerance | +0.0/-0.1mm | Thickness Tolerance | ±0.1mm |
| Surface Accuracy | λ4@632.8nm | Focal Length Tolerance | ±1% |
| Centering Tolerance | 3 arcmin | Surface Quality | 40/20～60/40 |
| Bevel | 0.2mm x 45° | Coating | Customizable |
| Material | H-K9L /UV Fused silica/Calcium Fluoride/Zinc Selenide | ||
