Product type: Color Filter. Application: Optical, Dedicated for Methane Gas Detection. Model: BP635/30K.
Overview
Easy to Maintain Customizable 635nm Optical Narrowband Filter for Urban Gas Pipelines: a bandpass filter made from Optical Glass. Listed geometry: size Customizable, thickness 5mm-10mm. Optical / electrical data: wavelength 635 ± 2 Nm, bandwidth 30 ± 2 Nm, transmittance ≥ 90%. Surface quality 60/40. It is used in Optical and Dedicated for Methane Gas Detection. 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 | Color Filter |
| Shape | Customized |
| Size | Customizable |
| Surface Quality | 60/40 |
| Usage | Optical, Dedicated for Methane Gas Detection |
| Thickness Range | 5mm-10mm |
| Model NO. | BP635/30K |
| Color | Customized |
| Angle of incidence | 0° |
| Product Name | 635nm Cwl Bandpass Filter |
| Central Wavelength (Cwl) | 635 ± 2 Nm |
| Fwhm Bandwidth | 30 ± 2 Nm |
| Blocking Range | 200 – 800 Nm |
| Optical Density (Od) | ≥ Od6 |
| Peak Transmittance (Tpeak) | ≥ 90% |
| Supplier | Shanghai Mega-9 Optoelectronic Co., Ltd. |
Technical data
| Product Name | 635nm CWL Bandpass Filter |
|---|---|
| Keywords | Bandpass Filter |
| Central Wavelength (CWL) | 635 ± 2 nm |
| FWHM Bandwidth | 30 ± 2 nm |
| Blocking Range | 200 – 800 nm |
| Optical Density (OD) | ≥ OD6 |
| Peak Transmittance (Tpeak) | ≥ 90% |
| Angle of Incidence (AOI) | 0° |
| Size | Customizable |
| Surface Quality | 60/40 |
What to specify when you request a quote
- Spectral target — listed as “635 ± 2 Nm”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — listed as “200 – 800 Nm”; 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 “Customizable”; 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 “60/40”; 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 Optical Glass Colour Filter.
