Product type: Flat Lens. Application: Lighting, Medical, Optical, Photography. Model: RAY-LH023#.
Overview
Advanced Optical Notch Filter for Industrial Measurement Systems is a bandpass filter made from Optical Glass. Optical / electrical data: wavelength 488-694 Nm/700-950nm. Coating: Dielectric Coating; surface quality 40-20 Scratch-Dig or Custom Manufacturing; flatness λ/4. 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
| Material | Optical Glass |
|---|---|
| Type | Flat Lens |
| Shape | Customized |
| Wavelength Range | 488-694 Nm/700-950nm |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Flatness | λ/4 |
| Parallelism | <30″ |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | RAY-LH023# |
| Surface Flatness | Lambda/10 at 632.8nm with Power Removed |
| Coating Type | Dielectric Coating |
| Dimensional tolerance | +0/-0.15mm |
| Thickness tolerance | ±0.1mm |
| Effective clear aperture | >90% central area |
| Finish | 20/10 |
| Chamfer | 0.25-0.75mm x 45°±15° |
| Use angle | 0° |
| Spectral indicators | customized according to customer requirements |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
What to specify when you request a quote
- Spectral target — listed as “488-694 Nm/700-950nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — give the blocking range and optical density (OD) the system needs.
- Angle of incidence — listed as “0°”; interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “+0/-0.15mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Optical Glass”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — listed as “40-20 Scratch-Dig or Custom Manufacturing”; quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Selecting Bandpass Filter Glass for Reliable Optical Performance. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. A related standard product is Bandpass Filter.
