Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Photography.
Overview
Factory Customized Laser IR Infrared Optical Narrow Bandpass Filter 940nm: a bandpass filter made from Glass. Listed geometry: thickness 1mm-2mm. 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 | Glass |
|---|---|
| Type | Thin Film Filter |
| Shape | Customized |
| Usage | Lighting, Medical, Optical, Photography |
| Color | Black |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Thickness Range | 1mm-2mm |
| Product Index | CWL |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| CWL | 940nm±3nm |
|---|---|
| FWHM | 15nm±3nm or custom |
| Transmission at CWL | >90% (customized) |
| Cutoff wavelenghth | 200nm-1100nm (customized) |
| Blocking | >OD3-OD6 UV-NIR |
| Surface Quality | MIL60/40 |
| Substrate | Optical glass( K9,BK7,B270,D263T,JGS1,Color glass, float glass ) |
| Product size | 3mm-80mm (customized) |
| Application | 940nm narrow-band filter is a classical laser infrared filter, which is mostly used in carbon dioxide laser, and video security monitoring filter solution. |
What to specify when you request a quote
- Spectral target — 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 “1mm-2mm”; 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.
