Product type: Color Filter. Application: Lighting, Medical, Optical, Photography. Model: TT Filter 126.
Overview
The Professional N-Bk7 Bbar Coated ND Filter for Photographers is supplied as a neutral density filter made from Glass. Listed geometry: thickness as Required. Surface quality as Required. Listed for Lighting, Medical, Optical and Photography 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 | Customized |
| Thickness | as Required |
| Surface Quality | as Required |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | TT Filter 126 |
| Thickness Range | 1mm-2mm |
| Color | Red |
| Principle | Neutral-type Filter |
| Angle of incidence | 0° |
| Polished | Yes |
| Supplier | Tianjin Tengteng Optoelectronic Technology Co., Ltd. |
Technical data
| 1.Material | BK7 Glass, Fused Silica or Color glass |
|---|---|
| 2.Dimensional tolerances | 0/-0.1mm |
| 3.Clear aperture | >90% |
| 5.Parallelism | 1 Arc minute |
| 6.Surface Quality | US Standard 40-20,ISO Standard 3X0.25 |
| 7.Edge Chip | <0.1mm |
| 8.Bevel | Based on clients' requests |
| 9.Coating | AR, HR, PR or based on clients' requests |
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 “as Required”; 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 “as Required”; 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. How parts like this are machined and finished is covered in AR Coating Process for Optical Glass Windows – Complete Manufacturing Overview. For an application example, read Precision Neutral Density Filter Glass for Appliance Optical Sensors. A related standard product is Optical Glass Colour Filter.
