Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Photography.
Overview
The Bk7 Lens Optical Glass Shortpass Filter 650nm IR Cut Filter is supplied as a UV / IR cut filter made from Glass. Listed geometry: thickness 0.2-5mm or Custom. Optical / electrical data: transmittance T>90%. It is used in Lighting, Medical, Optical and Photography. 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 |
| Transmittance | T>90% |
| Usage | Lighting, Medical, Optical, Photography |
| Thickness Range | 0.2-5mm or Custom |
| Color | Transparent |
| Principle | Cut-off Filter |
| Angle of incidence | 0° |
| Transmission Range | 700-1100nm |
| Supplier | Nano Macro Optics Co.,Ltd. |
Technical data
| Angle of incidence | 0 degree |
|---|---|
| Surface quality | 60-40 |
| Peoduct size | 19mm dia or custom (Square or round) |
| Thickness | 1±0.1mm or custom |
| Product material | optical glass (K9,BK7,B270,D263T or custom) |
What to specify when you request a quote
- Spectral target — listed as “T>90%”; 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 “0.2-5mm or Custom”; 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 Dichroic Filter Glass: Selecting Substrates for Precision Optical Separation. How parts like this are machined and finished is covered in Chalcogenide Glass Coating for IR Optical Components. For an application example, read Dichroic Filter Glass for Smart Appliance Lighting Modules. A related standard product is Dichroic Filter.
