Overview
| brand | YISU | Does it support processing customization | |
| Imported or not | yes | Wavelength range | |
| material | material quality | Optical glass (K9 quartz, whiteboard, B270, etc.) | |
| Metering method | measuring range | ||
| measurement accuracy | Measuring caliber | ||
| Measurement time | Measurement repeatability | ||
| size | Pupillary distance | ||
| Exit pupil diameter | source | ||
| reflectivity | Magnification rate | ||
| Magnification factor | Magnification rate | ||
| resolving power | Lattice value | ||
| working voltage | working temperature | ||
| power | Photometric range | ||
| Smoothness | light source | ||
| specifications | Customized according to needs | thickness | |
| Detection distance | focal length | ||
| structure | Resolution | ||
| Dielectric strength | accuracy | ||
| Scale circle diameter | type | ||
| Range range | variety | ||
| Sampling rate | Sampling time | ||
| Incidence angle | Scanning range | ||
| Scanning method | Lifting range | ||
| Whether equipped with cross hairs | field | ||
| visual field | Applicable scope | ||
| Projection method | Transmittance | ||
| Objective diameter | Display Range | ||
| response time | model | ||
| serial number | colour | Different colors in different coating bands | |
| Effective sight distance | Effective pixels | ||
| Effective diameter | noise | ||
| length | weight | ||
| Number of boxes packed | Closest working distance | ||
| producing area | Huizhou | function | Specific permission for a certain segment of light to pass through |
| purpose | Used for various Optical instrument | Customized or not | yes |
Product Details
Filter, also known as interference filter, mainly uses the interference principle of light to obtain the transmission effect of the spectrum. The filter is processed by a vacuum coating machine to
Thin film deposition and evaporation of refractive index onto optical substrates
Up to achieve different optical effects. When multiple wavelengths of mixed light pass through the filter, interference effects occur due to different refractive indices, resulting in specific wavelengths
Light has a very high transmittance, while other wavelengths
Light is reflected or absorbed.
The filter products of Yisu Optoelectronics are mainly classified by spectral band, spectral characteristics, film material, application characteristics, and other methods.
Spectral bands: UV filter, visible filter, infrared filter;
Spectral characteristics: bandpass filter, cut-off filter, spectral filter, neutral density filter, reflection filter;
Membrane material: soft film filter, hard film filter;
Hard film filter not only refers to film hardness, but also its laser damage threshold, so it is widely used in laser systems
Filters are mainly used in biochemical analyzers.
Bandpass type: Light passing through the selected wavelength band is cut off by light outside the passband. Its optical indicators mainly include center wavelength (CWL) and half bandwidth (FWHM).
It is divided into narrowband and broadband. For example, narrowband 808
Filter NBP-808. Short wave pass (also known as low wave pass): Light shorter than the selected wavelength passes through and light longer than that wavelength is cut off. For example, infrared cutoff filter
Optical film, IR-650.
Long wave pass (also known as high wave pass): Light longer than the selected wavelength passes through, while light shorter than that wavelength cuts off, such as infrared transmission filters, LP-800.