주사형 표시 장치, 주사형 표시 시스템, 및 광 확산부의 제조 방법

• Main Author: IWASHINA SHINYA
• Format: Patent
• Language: Korean
• Published: 14.02.2020
• Subjects: ACCESSORIES THEREFOR; ADVERTISING; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; CINEMATOGRAPHY; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTROGRAPHY; HOLOGRAPHY; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LABELS OR NAME-PLATES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; SEALS; SIGNS; TRANSPORTING; VEHICLES IN GENERAL

주사형 표시 장치는, 투영 표시용의 레이저광을 출사하는 광원과, 광원으로부터 출사된 레이저광을 주사하는 광 주사부와, 이차원으로 배열된 복수의 광 확산 채널을 가지고, 광 주사부에 의해서 주사된 레이저광을 확산시키는 광 확산부를 구비한다. 광 확산부는, 복수의 광 확산 채널 중 서로 이웃하는 임의의 한 쌍의 광 확산 채널을 통해서 관찰자의 눈에 도달하는 광로가 이루는 각도가, 눈의 해상각에 근거하여 설정된 각도 이상이 되도록 구성되어 있다. A scanning-type display device includes: a light source which emits projection-display laser light; an optical scanning unit which uses the laser light emitted from the light source in scanning; and a light diffusion unit which includes a plurality of light diffusion channels arranged in two dimensions and diffuses the laser light used in scanning by the optical scanning unit. The light diffusion unit is configured so that an angle formed by optical paths extending to an eye of an observer through a pair of adjacent light diffusion channels arbitrarily selected from among the plurality of light diffusion channels becomes equal to or larger than an angle set on the basis of a resolution angle of the eye.