An increase in the angle of incidence causes a shift of the center wavelength to shorter wavelengths. This can be very useful in tuning a narrowband filter to a desired wavelength.
Hontec optics supplies high quality standard and custom-made interference fil- ters within the spectral range from 350 nm to 1200 nm. We also can offer biomedical bandpass filters, which are specially designed for biomedical instrumentation, including chemistry analyzers and microplate readers. These bandpass filters include standard or custom matched filters. Fluorescence filters, which we can supply includes such features as steep slopes, deep blocking (up to OD 4), minimal spectral crosstalk, high transmis- sion and environmental durability.
