Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Photography, Astronomy. Model: Bandpass filter.
Overview
The Dia25.4xT6mm OD1 1053nm Coated Optical Neutral Absorptive Filter is supplied as a neutral density filter made from Glass. Listed geometry: diameter 25.4+/-0.1mm, thickness 6.0+/-0.1mm. Coating: Neutral density filter coating,AOI=0deg. 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 | Thin Film Filter |
| Shape | Customized |
| Diameter | 25.4+/-0.1mm |
| Thickness | 6.0+/-0.1mm |
| Coating | Neutral density filter coating,AOI=0deg |
| Parallelism | <3arcmin |
| Clear aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Model NO. | Bandpass filter |
| Thickness Range | 0.5-60mm |
| Color | Pink |
| Principle | Selective Absorption Filter |
| Angle of incidence | 45° |
| Materials we already use | optical glass, materials, and even some plastics. |
| Specifications | Items |
| R1 | infinity |
| R2 | infinity |
| Chamfer | 0.1-0.25mmx45deg |
| Standard | MIL-PRF-13830B |
| Applications | . fluorescence microscopy |
| Package detail | Optics are packed with Capacitor paper, white paper, custom-made plastic containers etc |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| D25.4mm Neutral density filter(absorbing) | Material: | N-BK7 |
| Diameter: | 25.4+/-0.1mm | |
| Thickness: | 6.0+/-0.1mm | |
| R1: | infinity | |
| R2: | infinity | |
| Surface quality: | S1&S2:60-40 | |
| Clear aperture: | >90% | |
| Parallelism: | <3arcmin | |
| Chamfer: | 0.1-0.25mmx45deg | |
| Coating: | Neutral density filter coating,AOI=0deg | |
| Standard: | MIL-PRF-13830B | |
| D25.4mm Neutral density filter(absorbing) | Material: | N-BK7 |
| Diameter: | 25.4+/-0.1mm | |
| Thickness: | 6.0+/-0.1mm | |
| R1: | infinity | |
| R2: | infinity | |
| Surface quality: | S1&S2:60-40 | |
| Clear aperture: | >90% | |
| Parallelism: | <3arcmin | |
| Chamfer: | 0.1-0.25mmx45deg | |
| Coating: | Neutral density filter coating,AOI=0deg | |
| Standard: | MIL-PRF-13830B | |
| D25.4mm Neutral density filter(absorbing) | Material: | N-BK7 |
| Diameter: | 25.4+/-0.1mm | |
| Thickness: | 6.0+/-0.1mm | |
| R1: | infinity | |
| R2: | infinity | |
| Surface quality: | S1&S2:60-40 | |
| Clear aperture: | >90% | |
| Parallelism: | <3arcmin | |
| Chamfer: | 0.1-0.25mmx45deg | |
| Coating: | Neutral density filter coating,AOI=0deg | |
| Standard: | MIL-PRF-13830B | |
| D25.4mm Neutral density filter(absorbing) | Material: | N-BK7 |
| Diameter: | 25.4+/-0.1mm | |
| Thickness: | 6.0+/-0.1mm | |
| R1: | infinity | |
| R2: | infinity | |
| Surface quality: | S1&S2:60-40 |
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 “25.4+/-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 — 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.
