Holographic head-up display device
AssigneeSamsung Display Co., Ltd.
InventorsHye Sog Lee, Byung Choon Yang, Jae Ho You
Life of this patent
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Abstract
A holographic head-up display device has a light source portion that emits coherent light; an optical modulation portion that modulates the coherent light; a relay optical system that focuses the modulated light; a filter minor that has a reflection area at a focal position of the relay optical system and reflecting light incident through the relay optical system and an absorption area at the periphery of the reflection area and absorbing light incident through the relay optical system; and a transflective mirror that partially transmits and partially reflects light reflected by the filter minor.
Claims12
A holographic head-up display device comprising:
- a light source portion configured to emit light, the light being coherent light;
- an optical modulation portion configured to modulate the light;
- a relay optical system configured to focus the light;
- a filter minor that includes a reflection area disposed at a focal position of the relay optical system and configured to reflect light incident through the relay optical system and an absorption area disposed at a periphery of the reflection area and configured to absorb light incident through the relay optical system, the reflection area having a shape defined by the absorption area that is a same shape as a display area of the optical modulation portion;
- and
- a transflective minor configured to partially transmit and partially reflect light reflected by the filter minor.
A holographic head-up display device comprising:
- an optical modulation portion configured to modulate incident light;
- a relay optical system configured to focus the incident light on a focus point;
- and
- a filter minor that includes a reflection portion configured to reflect an image formed at the focus point and an absorption portion configured to absorb diffraction noise formed at a periphery of the image, the reflection portion having a shaped defined by the absorption portion that is a same shape as a display area of the optical modulation portion.
Dependencies are inferred from the claim text.