Product type: Longpass Filters. Application: Optical.
Overview
The High Quality Borosilicate Coating Bandpass Dichroic Optical Filter is supplied as a bandpass filter made from Glass. Listed geometry: thickness 0.3-50mm. Typical applications: 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 | Longpass Filters |
| Shape | Customized |
| Usage | Optical |
| Thickness Range | 0.3-50mm |
| Color | All Sorts of Color |
| Principle | Cut-off Filter |
| Angle of incidence | 0deg;/45deg; |
| Supplier | Shenyang Ebetter Optics Co., Ltd. |
Technical data
| Diameter | Custom made |
|---|---|
| Dimensional Tolerance | ±0.25mm |
| Thickness Tolerance | ±0.2mm |
| Surface quality (scratch & dig) | 60/40, 40/20 or better |
| Substrate | Colored Glass |
| Coating | Custom |
| Type | Bandpass Filter |
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 “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 How Borosilicate Glass Is Sandblasted for Matte Surface Processing. For an application example, read Bandpass Filter Glass for Appliance Light Detection Modules. Before sending a drawing, check Precision Glass Material Selection: Fused Silica vs Borosilicate & More. A related standard product is Bandpass Filter.
