Product type: Longpass Filters. Application: Optical.
Overview
Optical Custom Glass Cut-off Filter Optic Cut off Lens Filter: a longpass / shortpass filter made from Glass. Listed geometry: thickness 0.3-50mm. Listed for Optical 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 | 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 |
|---|---|
| Diameter Tolerance | +0.00/-0.20mm |
| Thickness Tolerance | ±0.1mm |
| Surface quality | 60/40, 40/20 or better |
| Transmission | >95% |
| Clear Aperture | ≥90% |
| Type | Longpass 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 Shortpass Filter Glass Material for Optical Glass Assemblies. How parts like this are machined and finished is covered in Precision Glass Cutting Process for Custom Components. For an application example, read Longpass Filter Glass for Appliance Sensor Calibration. A related standard product is Shortpass Filter.
FAQ
What is the Optical Custom Glass Cut-off Filter Optic Cut off Lens Filter 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 longpass / shortpass 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.
