Photolithographic multispectral filter of 4 channels
The multispectral filter is precisely produced by the composite process of photolithography + coating. The deposition mask is produced by the high-precision reproduction photolithography technology, and the high-performance filter film of each spectrum segment is successively plated within the deposition pattern. Multi-spectral filters have high transmittance and excellent filtering characteristics. Multiple filter channels are integrated into a single substrate, and the spatial alignment accuracy is extremely high. Application: Used in space multispectral imaging, multispectral imaging spectrometer, medical multispectral imaging. Standard product: Central wavelength(nm) Half peak bandwidth (nm) Gradient(nm) Block deth Average transmittance(%) 550…
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