Product type: Meniscus Lenses. Model: RAY-LH180#.
Overview
Germanium Meniscus Lenses/Zinc Selenide Meniscus Lenses/Meniscus Lenses is an optical lens made from Borofloat 33 or Equivalent. Optical / electrical data: wavelength 488-694 Nm/700-950nm. Coating: Dielectric Coating; surface quality 40-20 Scratch-Dig or Custom Manufacturing; flatness Lambda/10 at 632.8nm with Power Removed. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Substrate | Borofloat 33 or Equivalent |
|---|---|
| Type | Meniscus Lenses |
| Wavelength Range | 488-694 Nm/700-950nm |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Model NO. | RAY-LH180# |
| Surface Flatness | Lambda/10 at 632.8nm with Power Removed |
| Coating Type | Dielectric Coating |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
Technical data
| Material | CVD Laser Grade Zinc Selenide |
|---|---|
| Design wavelength | 10.6μm |
| Diameter error | +0.0/-0.1mm |
| Center thickness error | ±0.2mm |
| Effective focus error | ±1% |
| Lens centering error | <3 arc minutes |
| Surface finish | 40/20~60/40 |
| Chamfer | 0.2mmX45° |
| Material | Germanium |
|---|---|
| Design wavelength | 10.6μm |
| Diameter error | +0.0/-0.1mm |
| Center thickness error | ±0.2mm |
| Effective focus error | ±1% |
| Lens centering error | <3 arc minutes |
| Surface finish | 40/20~60/40 |
| Chamfer | 0.2mmX45° |
What to specify when you request a quote
- Material — listed as “Borofloat 33 or Equivalent”; name the glass or crystal.
- Geometry — give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “40-20 Scratch-Dig or Custom Manufacturing”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “Dielectric Coating”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Borofloat Glass Wafers: Material & Coating Options for Substrates. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. For an application example, read Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Precision Glass Material Selection: Fused Silica vs Borosilicate & More. A related standard product is 4-inch Borofloat 33 Glass Wafers.
