Product type: Neutral Density Filter. Application: Lighting, Medical, Optical, Photography, Astronomy.
Overview
Dia6.3mm Coated Neutral Density Optical ND Filter: a neutral density filter made from Glass. Listed geometry: diameter 6.3+0.0/-0.3mm, thickness 1.0+1.0/-0.0mm, round shape. It is used in 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 | Glass |
|---|---|
| Type | Neutral Density Filter |
| Shape | Round |
| Diameter | 6.3+0.0/-0.3mm |
| Thickness | 1.0+1.0/-0.0mm |
| Parallelism | <1arcmin |
| Clear aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Thickness Range | 1mm-2mm |
| Color | Gray |
| Principle | Neutral-type Filter |
| Angle of incidence | 0° |
| R1 | infinity |
| R2 | infinity |
| S1&S2 | 60-40 |
| Chamfer | protected |
| Standard | MIL-PRF-13830B |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Material: | JGS1 |
|---|---|
| Diameter: | 6.3+0.0/-0.3mm |
| Thickness: | 1.0+1.0/-0.0mm |
| R1: | infinity |
| R2: | infinity |
| Flatness: | N/A |
| Surface quality: | S1&S2:60-40 |
| Parallelism: | <1arcmin |
| Clear aperture: | >90% |
| Chamfer: | protected |
| 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 “6.3+0.0/-0.3mm”; 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 How to Select Neutral Density Filter Glass for Optical Instruments. For an application example, read Precision Neutral Density Filter Glass for Appliance Optical Sensors. A related standard product is Neutral Density (ND) Filter.
FAQ
What is the Dia6.3mm Coated Neutral Density Optical ND 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 diameter 6.3+0.0/-0.3mm, thickness 1.0+1.0/-0.0mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
Where is this neutral density 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.
