Product type: Filter. Application: Lighting, Medical, Optical, Photography, Astronomy. Model: Filter.
Overview
Precision 2X2X0.5mm Od2 850nm Coating Optical Bandpass Filter is a bandpass filter made from Schott N-Bk7. Listed geometry: size 2.00×2.00+/-0.05mm, thickness 0.50+/-0.05mm. Optical / electrical data: bandwidth 10nm+/-2nm. Coating: Band pass filter coating. Listed for Lighting, Medical, Optical, Photography and Astronomy applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Schott N-Bk7 |
|---|---|
| Type | Filter |
| Shape | Customized |
| Thickness | 0.50+/-0.05mm |
| FWHM | 10nm+/-2nm |
| Coating | Band pass filter coating |
| Parallelism | <3arcmin |
| Clear aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Model NO. | Filter |
| Thickness Range | 0.5mm-1mm |
| Color | Transparent |
| Principle | Selective Absorption Filter |
| Angle of incidence | 0° |
| Specifications | Items |
| Dimensions | 2.00×2.00+/-0.05mm |
| R1 | infinity |
| R2 | infinity |
| Chamfer | protected |
| Standard | MIL-PRF-13830B |
| Materials we already use | optical glass, materials, and even some plastics. |
| Applications | . fluorescence microscopy |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| NBP Filter 850nm | Material: | Schott N-BK7 |
| Dimensions: | 2.00×2.00+/-0.05mm | |
| Thickness: | 0.50+/-0.05mm | |
| R1: | infinity | |
| R2: | infinity | |
| Flatness: | S1&S2:N/A | |
| Surface quality: | S1&S2:60-40 | |
| Parallelism: | <3arcmin | |
| Clear aperture: | >90% | |
| Chamfer: | protected | |
| Coating: | Band pass filter coating | |
| FWHM:10nm+/-2nm | ||
| Standard: | MIL-PRF-13830B |
What to specify when you request a quote
- Spectral target — listed as “10nm+/-2nm”; 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 “0.50+/-0.05mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Schott N-Bk7”; 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. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. A related standard product is Bandpass Filter.
