Application: Lighting, Medical, Optical, Photography. Model: RAY-LH093#.
Overview
Germanium Lenses/Germanium Element/Optical Instrument is an optical lens. 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. It is used in Lighting, Medical, Optical and Photography. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Shape | Customized |
|---|---|
| Wavelength Range | 488-694 Nm/700-950nm |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | RAY-LH093# |
| Surface Flatness | Lambda/10 at 632.8nm with Power Removed |
| Coating Type | Dielectric Coating |
| Product parameters | Material |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
Technical data
| Material | Germanium |
|---|---|
| Diameter tolerance | +0.0,-0.15mm (standard), +0.0, -0.02mm (high precision) |
| Focal length | +/-2% |
| Center offset | 5 points |
| Clear Aperture | >85% |
| Finish | 60-40 |
| Chamfer | 0.25×45° |
What to specify when you request a quote
- Material — 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 Fused Silica and Quartz Glass: Selecting Materials for Precision Components. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Infrared Windows.
