Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Photography, Astronomy. Model: Silicon filter.
Overview
Dia4.6xT0.4mm Silicon Optical Micro Filter is an optical filter made from Silicon. Listed geometry: diameter 4.6+/-0.2mm, thickness 0.4+/-0.2mm, round shape. Supplied uncoated. Typical applications: Lighting, Medical, Optical, Photography and Astronomy. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Silicon |
|---|---|
| Type | Thin Film Filter |
| Shape | Round |
| Diameter | 4.6+/-0.2mm |
| Thickness | 0.4+/-0.2mm |
| Coating | uncoated |
| Parallelism | <10arcsec |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Model NO. | Silicon filter |
| Thickness Range | 0.5mm-1mm |
| Color | Black |
| Principle | Selective Absorption Filter |
| Angle of incidence | 45° |
| R1 | infinity |
| R2 | infinity |
| S1&2 | >D2.0mm |
| Chamfer | <0.1mmx45deg,sharp edges |
| Standard | MIL-PRF-13830B |
| Applications | . fluorescence microscopy |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Filter | Material: | Silicon,optical grade |
| Diameter: | 4.6+/-0.2mm | |
| Thickness: | 0.4+/-0.2mm | |
| R1: | infinity | |
| R2: | infinity | |
| Flatness: | S1&S2:N/A | |
| Surface quality: | S1&S2:fine ground | |
| Parallelism: | <10arcsec | |
| Clear aperture: | S1&2:>D2.0mm | |
| Chamfer: | <0.1mmx45deg,sharp edges | |
| 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 “45°”; interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “4.6+/-0.2mm”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Silicon”; 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 Color Filter Glass Materials for High-Performance Optical Screening and Imaging. A related standard product is Optical Glass Colour Filter.
FAQ
What is the Dia4.6xT0.4mm Silicon Optical Micro Filter made of? expand_more
It is listed as Silicon. Coating: uncoated. 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 diameter 4.6+/-0.2mm, thickness 0.4+/-0.2mm. 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.
