Product type: Flat Lens. Application: Lighting, Medical, Optical, Photography. Model: 00956.
Overview
Neutral Density Filter Optical Window Bk7 Substrate Gray Tint: a neutral density filter made from Bk7 Optical Glass. Listed geometry: single-lens shape. Optical / electrical data: wavelength Vis-Nir Broadband, transmittance >95%. Coating: UV, ND (Uniform Gray Tint); surface quality 20-10 Scratch-Dig. 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 | Bk7 Optical Glass |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Wavelength | Vis-Nir Broadband |
| Transmittance | >95% |
| Coating | UV, ND (Uniform Gray Tint) |
| Surface Quality | 20-10 Scratch-Dig |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | 00956 |
| Lenses Color | Clear |
| Optical Density | Od 0.1-3.0 (Tbd Per Spec) |
| Supplier | Shenzhen Xinyuan Huiyu Optoelectronic Technology Co., Ltd. |
Technical data
| Material | Optional | Customized | Customized |
| Size | Custom | Customized | Customized |
| Focal Length | Custom | Customized | Customized |
| Coating | Optional | Customized | Customized |
What to specify when you request a quote
- Spectral target — listed as “Vis-Nir Broadband”; state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — listed as “Od 0.1-3.0 (Tbd Per Spec)”; give the blocking range and optical density (OD) the system needs.
- Angle of incidence — interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Bk7 Optical Glass”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — listed as “20-10 Scratch-Dig”; 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. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is Neutral Density (ND) Filter.
