Product type: Bandpass Filter. Application: Lighting, Medical, Optical, Photography, Scientific Experiments. Model: BPF001.
Overview
The 940nm Optical Glass IR Transmission Filter Bandpass Filter for Scientific and Industrial is supplied as a bandpass filter made from Glass. Listed geometry: size 5-80mm, thickness 1-3mm or Custom. Optical / electrical data: wavelength 940nm, bandwidth 25nm or Custom, transmittance T>90%. Typical applications: Lighting, Medical, Optical, Photography and Scientific Experiments. 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 |
| Size | 5-80mm |
| Cwl | 940nm |
| Fwhm | 25nm or Custom |
| Transmittance | T>90% |
| Usage | Lighting, Medical, Optical, Photography, Scientific Experiments |
| Model NO. | BPF001 |
| Thickness Range | 1-3mm or Custom |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Optical Density | Od2-Od6 |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| CWL | 940nm±3nm |
|---|---|
| FWHM | 25nm±3nm (customized) |
| Product size | custom option |
| Transmission at CWL | >90%(According to customers' demand) |
| Blocking | >OD2-OD6 |
| Substrate | Optical glass |
| Surface Quality | 60-40 |
| Application | scientific experiments and industrial application |
What to specify when you request a quote
- Spectral target — listed as “940nm”; 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 “5-80mm”; 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 Chalcogenide Glass Coating for IR Optical Components. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. A related standard product is Bandpass Filter.
