| 摘要 |
A transmission type polarizing element 1 includes a dielectric substrate 3 having a structure in which a plurality of ridges 2 with an angle section are arranged parallel to each other on one side of the dielectric substrate 3, a thin film 4 that is made of a light absorbing substance and formed on the surfaces of the plurality of ridges 2 with an angle section, and a first dielectric substance layer 5 covering the surface of the thin film 4 that faces away from the dielectric substrate 3. When light is incident perpendicularly on the dielectric substrate 3, this transmission type polarizing element 1 transmits a TM polarizing component of the incident light whose magnetic field vibrates in the same direction as the longitudinal direction of the ridges 2 and absorbs a TE polarizing component of the incident light whose electric field vibrates in the same direction as the longitudinal direction of the ridges 2. Thus, a transmission type polarizing element that reduces return light, has high durability, and is capable of being used as a polarizing plate can be provided with a simple configuration.
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