POLARIZING PLATE AND OPTICAL APPARATUS PROVIDED WITH THE SAME

A polarizing plate 1 with a wire grid structure includes a transparent substrate 10, and a grid-shaped projecting portion 11 which is arranged on the transparent substrate 10 at a pitch shorter than a wavelength of light in a used bandwidth and extends in a predetermined direction. The grid-shaped p...

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Bibliographische Detailangaben
1. Verfasser:	Oowada, Masahiro
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A polarizing plate 1 with a wire grid structure includes a transparent substrate 10, and a grid-shaped projecting portion 11 which is arranged on the transparent substrate 10 at a pitch shorter than a wavelength of light in a used bandwidth and extends in a predetermined direction. The grid-shaped projecting portion 11 includes a reflection layer 12, a dielectric layer 13, and an absorption layer 14 in this order from the side of the transparent substrate 10. A protection layer 15 is provided on a surface of the grid-shaped projecting portion 11, and covers all of an upper surface and a side surface of the absorption layer 14 and all of a side surface of the dielectric layer 13, and at least a part of a side surface of the reflection layer 12. The protection layer 15 on the side surface of the reflection layer 12 is thinner than the protection layer 15 on the side surface of the absorption layer 14.