1.Product Descriptions:
| Characteristics: | 590nm Bandpass Filter |
| Type: | Bandpass Filter |
| Central Wavelength (CWL): | 590+-5nm |
| Full Width at Half Maximum(FWHM): | 20/25/45/155nm |
| Peak Transmittance(%) : | >88% |
| Surface Quality: | 60/40 scratch-dig |
| Optical Density (OD): | OD2-OD3 |
| Color: | Yellow |
| Shape： | Square, Round, Irregular Shape |
| Dimension(mm): | specified** |
| Thickness(mm): | 0.21-0.3mm |
| Substrate: | Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified |
| Remark： Spectral range:350-1100nm *Customized capability: 380-2500nm, stock for 10nm intervals. **Common for 86x86mm, 80x80mm, other can customized, max. 300x300mm *** Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm…etc. | |
2.Measured Spectral Graph – 590nm Bandpass filter:
 |
| Picture 1: BP590-20nm Spectral Graph measurement |
 |
| Picture 2: BP590-25nm Spectral Graph measurement |
 |
| Picture 3: BP590-45nm Spectral Graph measurement |
 |
| Picture 4: BP590-155nm Spectral Graph measurement |
3.What is typical application for 590nm bandpass filters?
A 590nm bandpass filter is a precision optical element that only allows light around 590nm to pass through, while blocking all other wavelengths outside this narrow spectral range. Typical application for 590nm bandpass filters are very broad, included fluorescence detection and biochemical analysis, environmental optical sensing, visible light imaging and optical measurement, stage lighting and color filtering systems, etc.
4.What is key parameter when choose for right bandpass filters?
When selecting Bandpass Filters, you need to consider the following key factors. First and foremost, center wavelength accuracy, which determines the ability to screen specific wavelengths of light. Secondly, full width at half maximum (FWHM), which defines the wavelength range allowed to pass through. Thirdly, transmittance requirements, reflecting the transmission efficiency for target wavelengths. Fourth, blocking depth and range, indicating the ability to block non-target wavelengths. Fifth, angle of incidence (AOI), which affects filter performance. Finally, substrate and physical specifications — common substrate materials include K9/BK7, fused silica, and others.
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 typical Bandpass filters in stock from Liyuan Optoelectronics include BP810 BP820 BP830 BP840 BP850 BP860 BP870 BP880 BP890 BP…etc.
