Product type: Color Filter. Application: Lighting, Medical, Optical, Photography, Astronomy. Model: Filter.
Overview
The Dia20xT3mm GG375 Uncoated Optical Yellow Filter is supplied as an optical filter made from Glass. Listed geometry: diameter 20.0+/-0.1mm, thickness 3.0+/-0.1mm, round shape. Supplied uncoated; surface quality 20-10,laser polishing quality; flatness 1/10L. 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 |
| Diameter | 20.0+/-0.1mm |
| Thickness | 3.0+/-0.1mm |
| Coating | uncoated |
| Surface quality | 20-10,laser polishing quality |
| Flatness | 1/10L |
| Parallelism | <3arcmin |
| Clear Aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Model NO. | Filter |
| Thickness Range | 2mm-5mm |
| Color | Yellow |
| Principle | Selective Absorption Filter |
| Angle of incidence | 0° |
| R1 | infinity |
| R2 | infinity |
| Chamfer | protected |
| Standard | MIL-PRF-13830B |
| Applications | . fluorescence microscopy |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Filter | Material: | Schott GG375 |
| Diameter: | 20.0+/-0.1mm | |
| Thickness: | 3.0+/-0.1mm | |
| R1: | infinity | |
| R2: | infinity | |
| Flatness: | 1/10L | |
| Surface quality: | 20-10,laser polishing quality | |
| Parallelism: | <3arcmin | |
| Clear Aperture: | >90% | |
| Chamfer: | protected | |
| Coating: | uncoated | |
| Standard: | MIL-PRF-13830B |
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 “20.0+/-0.1mm”; 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 “20-10,laser polishing quality”; 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.
