Product type: Thin Film Filter. Application: Medical.
Overview
Customized Fwhm 5-50nm Od2-Od6 High Pass IR Optical 680nm Narrow Bandpass Filter: a bandpass filter made from Glass. Listed geometry: size 2-80mm, thickness 0.21-5.0mm. Optical / electrical data: wavelength 680+/-5nm, bandwidth 5-50nm, transmittance T>90%. Surface quality 60/40. Typical applications: Medical. 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 |
| Size | 2-80mm |
| Thickness | 0.21-5.0mm |
| Cwl | 680+/-5nm |
| Fwhm | 5-50nm |
| Transmittance | T>90% |
| Surface Quality | 60/40 |
| Usage | Medical |
| Thickness Range | 0.5mm-1mm |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Blocking | Od2-Od6 |
| Cut off | 200-1100nm |
| Supplier | Nano Macro Optics Co.,Ltd. |
What to specify when you request a quote
- Spectral target — listed as “680+/-5nm”; 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 “2-80mm”; 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 — 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. 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.
