Product type: Bandpass Filter. Application: Lighting, Medical, Optical, Photography.
Overview
Customized 808nm Optical Filter Narrow Bandpass Filter for Laser Rangefinder: a bandpass filter made from Glass. Listed geometry: thickness 1mm-2mm. Optical / electrical data: wavelength 808nm, bandwidth 20nm, transmittance 90%. Listed for Lighting, Medical, Optical and Photography applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Bandpass Filter |
| Shape | Customized |
| Fwhm | 20nm |
| Transmittance | 90% |
| Usage | Lighting, Medical, Optical, Photography |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Center Wavelength | 808nm |
| Optical Density | Od2-Od6 |
| Size/Shape | Custom |
| Thickness Range | 1mm-2mm |
| Spectrum Graph | Our Factory |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| Materials | Optical glass (K9,BK7,B270 etc) |
|---|---|
| CWL | 808±3nm |
| FWHM | 20mm±3nm or custom |
| Transmittance | T>90% |
| Blocking | 200-1100nm except for transmission band or custom |
| Cutoff depth | >OD3-OD6 |
| Product Size/Shape | custom (square or round) |
| Thickness | 1.1mm or custom |
| Surface Quality | 60-40/40-20 |
| Application Area | Imaging, Lighting, Laser, etc. |
What to specify when you request a quote
- Spectral target — listed as “20nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — listed as “Od2-Od6”; 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 “Custom”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Glass”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — 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 Laser Glass Etching for Fine Marking and Surface Features: A B2B Manufacturing Guide. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. A related standard product is Bandpass Filter.
