Product type: Bandpass Filter. Application: Lighting, Medical, Optical, Photography. Model: IR850.
Overview
850nm Coated Optical Glass Laser Filter IR Transmission Filters Bandpass: a bandpass filter made from Glass. Listed geometry: thickness 1-5mm or Custom. Optical / electrical data: wavelength 850nm, bandwidth 30nm or Custom Option. Listed for Lighting, Medical, Optical and Photography applications. 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 |
| Fwhm | 30nm or Custom Option |
| Usage | Lighting, Medical, Optical, Photography |
| Thickness Range | 1-5mm or Custom |
| Model NO. | IR850 |
| Color | Customized |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Center Wavelength | 850nm |
| Optical Density | Od2-Od6 |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| CWL | 850nm±3nm |
|---|---|
| FWHM | 30nm ±5nm or custom |
| Tpeak | T≥90% or custom |
| Surface | 60/40 |
| Substrate | optical glass |
| Size | customized |
| Thickness | customized |
What to specify when you request a quote
- Spectral target — listed as “30nm or Custom Option”; 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 “1-5mm or Custom”; 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.
