Abstract:
A scanning projector and a method for operating a scanning projector including a light source module including a plurality of color light sources including at least one color light source provided in a plurality, and a scanner configured to execute scanning in the horizontal direction and the vertical direction using light beams emitted from the light source module. Light beams emitted from the plurality of same color light sources are projected on different positions on a screen within one frame and, thus, more rapid and effective scanning may be executed and a high-quality image may be formed.
Abstract:
An image projection image for projecting an image on a screen includes a light source, a scanning mirror and a prism. The light source includes laser diodes for emitting beams of different wavelengths. The scanning mirror reflects the beams radiated from the light source and projects the reflected beams. The prism is disposed at the rear of the scanning mirror to decenter the beams via the scanning mirror based on the wavelengths. In the image projection apparatus, the laser diodes are fixed to be vertically spaced apart from a reference height, corresponding to the wavelengths of the beams.
Abstract:
Discussed is a head-up display including a housing having an inner space, an imaging device in the inner space and to emit a first linearly polarized light in a first direction; an inner mirror spaced apart from the imaging device in the inner space and to reflect the first linearly polarized light emitted from the imaging device in the first direction; a polarization film to transmit the first linearly polarized light reflected from the inner mirror and reflect a second linearly polarized light in a second direction orthogonal to the first direction; and a phase delay mirror disposed outside the inner space and to phase-convert the first linearly polarized light transmitted through the polarization film after being reflected from the inner mirror into the second linearly polarized light so as to emit the second linearly polarized light to the polarization film.
Abstract:
A scanning projector including a light source unit including a plurality of laser light sources; a mirror unit including a plurality of mirrors which transmit or reflect light beams output from the light source unit; a light synthesizer which synthesizes the light beams transmitted or reflected by the mirror unit; a Micro-Electro-Mechanical-System (MEMS) scanner which reflects incident light and performs scanning of the light in a horizontal direction and a vertical direction; and a light reflection unit which reflects light, having passed through the light synthesizer, to the MEMS scanner. Further, the light synthesizer includes a ½ wavelength plate converting a first polarization of the light beams transmitted or reflected by the mirror unit into a second polarization, and a Polarization Beam Splitter (PBS) surface synthesizing the light beams polarization-converted by the ½ wavelength plate into the second polarization with the light beams having the first polarization.
Abstract:
A head-up display device according to an embodiment of the present invention may comprises: an imaging device for emitting light to generate at least one virtual image; a first mirror unit reflecting the light of the imaging device; and a second mirror unit reflecting the light reflected from the first mirror unit to a windshield. The second mirror unit may comprise: a mirror assembly including a concave mirror having a reflective surface to reflect the light reflected from the first mirror unit to the windshield, and a plate coupled to an opposite surface of the reflective surface with respect to the concave mirror; and a tilt mechanism arranged opposite the concave mirror with respect to the plate and connected to the plate to tilt the plate and the concave mirror.
Abstract:
A mems scanner package and a scanning projector including the same are disclosed. The MEMS scanner package includes a MEMS scanner including a mirror surface for reflecting light, a magnet disposed behind the MEMS scanner, a lower case having an accommodation space formed therein to accommodate the magnet, an upper case having an opening formed therein to pass light, reflected from the MEMS scanner, therethrough, and a transparent cover unit for covering the opening. The transparent cover unit is embodied as a transparent member, and is coupled to the upper case while being inclined at a predetermined inclination angle with respect to the MEMS scanner.
Abstract:
There is disclosed a laser projection display including a light source unit for emitting light laser light; a light resolution unit for resolving the laser light into a first light and a second light; an optical scanner for realizing an image by scanning the resolved first light to a screen; a sensing unit for sensing the resolved second light; and an alignment compensation unit for calculating location variation of the second light sensed by the sensing unit and compensating color alignment to correspond to the calculated location variation value, wherein a distance between a light emitting surface of the light resolution and a light incidence surface of the optical scanner is equal to a distance between a light emitting surface of the light resolution unit and a light incidence surface of the sensing unit.