Product type: Filter. Application: Lighting, Medical, Optical, Photography. Model: RAY-LH146#.
Overview
The Interference Filter/Band-Pass Filter/Cut-off Filter/Optical Film/Short Pass Filter/Long Pass Filter is supplied as 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 Lambda/10 at 632.8nm with Power Removed. Typical applications: 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 | Filter |
| Shape | Customized |
| Wavelength Range | 488-694 Nm/700-950nm |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Parallelism | <1 arc min |
| Clear aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | RAY-LH146# |
| Surface Flatness | Lambda/10 at 632.8nm with Power Removed |
| Coating Type | Dielectric Coating |
| Dimensional tolerance | +0.0/-0.2mm |
| Finish | 60-40 |
| 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 — interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “+0.0/-0.2mm”; 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. How parts like this are machined and finished is covered in Precision Glass Cutting Process for Custom Components. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. A related standard product is Bandpass Filter.
