Product type: Bandpass Filters. Application: Optical. Model: OF.
Overview
Optical Infrared 940nm Bandpass Filter High Transmittance IR Pass Filters: a bandpass filter made from Glass. Listed geometry: thickness 0.3-50mm. It is used in Optical. 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 Filters |
| Shape | Customized |
| Usage | Optical |
| Model NO. | OF |
| Thickness Range | 0.3-50mm |
| Color | All Sorts of Color |
| Principle | Cut-off Filter |
| Angle of incidence | 0deg;/45deg; |
| Optical density | OD3; OD4; OD5; OD6 |
| Supplier | Shenyang Ebetter Optics Co., Ltd. |
Technical data
| Product name | Bandpass filter |
|---|---|
| CWL | 245-1064nm |
| FWHM | 5nm;10nm; 20nm; 30nm, 50nm or custom |
| Blocking wavelength | 200-1200nm |
| Optical density: | OD3; OD4; OD5; OD6 |
| Diameter&Tolerance | 0.5-600±0.02mm |
| Clear Aperture | ≥90% |
| Thickness&Tolerance | 0.3-50±0.02mm |
| Surface flatness | 1/10Lambda |
| Surface quality | 10-5 |
| Beveling | 45°×0.2mm |
| Coating | Hard Coated |
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 — listed as “OD3; OD4; OD5; OD6”; give the blocking range and optical density (OD) the system needs.
- Angle of incidence — listed as “0deg;/45deg;”; interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “0.3-50mm”; 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.
FAQ
What is the Optical Infrared 940nm Bandpass Filter High Transmittance IR Pass Filters made of? expand_more
It is listed as Glass. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
What sizes and thicknesses are available? expand_more
The listing gives thickness 0.3-50mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
Where is this bandpass filter used? expand_more
Listed applications: Optical.
What should I include in a quote request? expand_more
Include spectral target, blocking, angle of incidence, size and thickness and substrate, plus quantity and a drawing if the part is custom.
