Product Descriptions:
| Characteristics: | Laminated Infrared Bandpass filter |
| Type: | Interference type Bandpass Filter + Absorptive black glass |
| Central Wavelength (CWL): | Specified |
| Full Width at Half Maximum(FWHM): | 20nm |
| Optical Density (OD): | OD 2 – OD 3 |
| Shape: | Round, Square, Custom Shape |
| Angle of Incidence(AOI): | 0° or specified |
| Surface Quality: | 60/40 scratch-dig |
| Dimension(mm): | Diameter 6.0mm |
| Thickness(mm): | 2.0mm |
| Substrate: | Optical Glass + HWB Infrared Glass(black glass) |
| Remark: Spectral range:380-1100nm Infrared Glass types: HWB760, HWB780, HWB800, HWB830,HWB850,HWB900,HWB930 | |
What is working principle for the laminated Infrared Bandpass Filters?
This laminated infrared band-pass filter takes advantage of the dual strengths of the dielectric film filter and the absorbing infrared glass.On the one hand, the center wavelength and bandwidth of the passband of the dielectric membrane filter can be defined according to the application requirements.On the other hand, infrared transmittance glass, HWB series, due to its excellent absorption properties, has a better cutoff effect in the cutoff region.Moreover, the infrared glass is black and can be placed on the outside of the lens, making the interior invisible.
What is typical application for laminated infrared bandpass filters?
The laminated infrared band-pass filter combines the dual characteristics of a coated filter and an absorption-type filter, making it widely applicable. Typical application for glued bandpass filter is very broad, including Biomedical & In-Vitro Diagnostic Instruments, Industrial Machine Vision & Automated Inspection, Scientific Optical Measurement & Spectroscopy, Lighting, Indicator & Consumer Optics, Laser Auxiliary & Optoelectronic Modules, Small-Scale Astronomical & Remote Sensing.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nano materials 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 BP410 BP420 BP430 BP440 BP450 BP460 BP470 BP480 BP490 …etc.
