Product type: Color Filter. Application: Lighting, Medical, Optical, Photography, Astronomy.
Overview
Dia8mm (RG850) Coated Optical Receiver Filter is an optical filter made from Glass. Listed geometry: size 8.0+0.05/-0.1mm, thickness 2.85+/-0.35mm, round shape. Surface quality 80-50. Listed for Lighting, Medical, Optical, Photography and Astronomy 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 | Color Filter |
| Shape | Round |
| Thickness | 2.85+/-0.35mm |
| Surface quality | 80-50 |
| Parallelism | 4/4arcmin |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Color | Black |
| Principle | Receiver Filter |
| Angle of incidence | 0° |
| Thickness Range | 2mm-5mm |
| Dimensions | 8.0+0.05/-0.1mm |
| R1 | infinity |
| R2 | infinity |
| Bevel | <0.3mmx45deg |
| Standard | ISO 10110 |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Material: | Schott RG850 |
|---|---|
| Dimensions: | 8.0+0.05/-0.1mm |
| Thickness: | 2.85+/-0.35mm |
| R1: | infinity |
| R2: | infinity |
| Surface quality: | 80-50 |
| Parallelism: | 4/4arcmin |
| Clear aperture: | S1&S2:>D7.0mm |
| Bevel: | <0.3mmx45deg |
| FWHM=75+/-10nm | |
| Standard: | ISO 10110 |
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 “0°”; interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “2.85+/-0.35mm”; 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 “80-50”; quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Color Filter Glass Materials for High-Performance Optical Screening and Imaging. A related standard product is Optical Glass Colour Filter.
FAQ
What is the Dia8mm (RG850) Coated Optical Receiver 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 size 8.0+0.05/-0.1mm, thickness 2.85+/-0.35mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
Where is this optical filter used? expand_more
Listed applications: Lighting, Medical, Optical, Photography and Astronomy.
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.
