Product Descriptions :
| Characteristics: | 760nm Longpass Filter |
| Type: | Longpass Filter |
| Cut-off Wavelength(in mm): | 760nm ± 9nm |
| Peak Transmittance(%) : | >90% |
| Optical Density (OD): | OD3 |
| Shape: | Round or specified |
| Color: | Silver |
| Surface Quality: | 60/40, or 80/50 scratch-dig |
| Dimension(mm): | Diameter 194mm or specified |
| Thickness(mm): | 2.0mm or specified |
| Substrate: | Optical glass, Quartz, Colored glass |
| 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. | |
Measured Spectral curve
 |
Picture 1: LP760-1800nm Spectral Curve |
What is 760nm Longpass Filter?
760nm longpass filter is an optical component designed to transmit light with wavelengths longer than 760nm while effectively blocking shorter wavelengths. It functions as a “spectral separator” in optical systems and is a critical component for near-infrared (NIR) band selection.
What is typical application for 760nm Longpass Filter?
What is key parameter when choose for right 760nm Longpass Filter?
When selecting 760nm Longpass Filter, the Cut-off Wavelength will be one of key parameter to be designated, defined as the wavelength where transmission reaches 50% of the peak value. Secondly, peak and average transmittance, high-performance products achieve ≥90% , standard products typically >85% . Third, blocking depth. Higher OD values provide better blocking. Forth, substrate material, including optical glass (K9/BK7/B270), quartz, colored glass. Fifth, Size & Tolerances. Sixth, environmental durability. Seventh, surface quality, typically specified as 60/40 or 80/50, etc.
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 Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.
other Longpass filters in stock from Liyuan Optoelectronics: LP430 LP500 LP560 LP600 LP650 LP800, etc.
