$67.00
Specifications:
| Type | Plano-concave Lens | Material | Corning 7980 1D |
| Diameters(mm) | 25.4(+0.0/-0.1) | Design Wavelength(nm) | 587.6 |
| Effective Focal Length EFL(mm) | -300.00±1% | Back Focal Length BFL(mm) | -302.40 |
| Coating | 400-700nm AR | Surface Quality(S/D) | 10/5 |
| Irregularity@632.8nm | λ/10 | Centration Error(arc min) | ≤2 |
| Center Thickness | 3.5±0.1 |
Edge Thickness | 4.1±0.1 |
| Curvature Radius R1 | -137.54 | Clear Aperture | 90% |
| Protective Chamfer | 0.2mmx45° |
Dia25.4mm EFL300mm C7980-1D Plano Concave Lens 400-700nm Coated, Code: 1104-050
Plano concave lenses are simple lenses with one spherical face and one flat plano face, it has a
negative focal length, allowing the part to increase the divergence of convergent light. Concave
lenses can be used to balance out the spherical aberrations caused by other lenses. Concave lenses
have a broad range of applications including, focusing and control of laser beams, moderate-
quality imaging, and other optical instruments.
Hangzhou Shalom EO use fused silica materials from Corning, which has stable mechanical and
optical properties, and each piece of the lens is measured using a Zygo interferometer to assure
the surface accuracy and performance of these UV optics.
