To obtain a polarizing functional element having a polarizing film in which a light transmitting dielectric grating and a conductive metal film are alternately arranged in a plurality of numbers to form a stripe structure in one body so that the reflection dispersion of the incident light is suppressed and loss of light is prevented.
The polarizing functional element is provided with a light transmitting substrate 1 and the following polarizing film 4 having such a stripe structure as integrated with the substrate 1. The polarizing film 4 is produced by alternately arranging a plurality of ultrathin and smooth metal thin films 3a, 3b having 5 to 20 nm film thickness as aimed specification and within ±10% variance of the thickness and the light transmitting dielectric gratings 2a, 2b.
SHIRAKI KENICHI
SATO HIRAMICHI
