Product Descriptions：
| Characteristics: | IR670 cut-off filter |
| Cut-off Wavelength(in nm): | 670nm |
| Peak Transmittance(%) : | >90% ( AR coating version >95% ) |
| Optical Density (OD): | OD2-3 |
| Dimension(mm): | 100*15mm or Specified** |
| Thickness(mm): | 1.0mm or Specified*** |
| Substrate: | Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified. |
| Remark： (1) Spectral range:380-1100nm (2) Size customized: 86x86mm, 80x80mm, other can customized, max. 300x300mm (3) Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm…etc | |
What is typical application for IR670 cut-off filter?
This IR670nm Filters is used for blocking near infrared (IR) light at 670nm and allowing visible light to pass, it’s commonly used for：
(1)Security monitoring: Color correction of the image sensors in industrial cameras or surveillance cameras.
(2) Machine vision：Used in infrared imaging systems, it enhances the contrast of surface defects or contours of the detected object
(3) Medical image：Suitable for bio fluorescence imaging, filtering out stray light, making the labeling of specific molecules clearer.
What is key parameter when choose for Infrared (IR) cut-off filter?
When selecting a Infrared (IR) cut-off filter, the cut-off wavelength is designed at 50% transmittance. It’s one of key parameter to be designated, with a tolerance of generally +/-5nm or +/7nm which depend on the user inquiry. Secondly,Peak and Average Transmittance, e.g 90%,95%…etc. higher transmittance might need Anti-reflective(AR) coating.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nanomaterials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift. Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including Narrow Bandpass Fitlers, IR cut-off Filters, Longpass & Short Filters,Notch Filters, ND filters, Star filters and Optical sapphire block.
other IR cut-off filters in stock from Liyuan Optoelectronics: IR600 IR630 IR650 IR680 IR700 IR730 IR750 IR760 IR810 IR910 IR980…etc.
