Polarized Illumination
Optical Illumination Technique - Transmitted and Polarized Lighting
A polarizing filter is an oriented crystal that transmits only the light that travels in a fixed direction. Polarized light doesn’t keep its polarization when it diffusely reflects.
However, when polarized light specularly reflects, it keeps its polarization. Using this principle, it is possible to use a polarizing filter, with adjustable orientation, to remove specularly reflected light.


- A
- Light
- B
- Direction of transmission
- C
- Polarizing filter

