Apparatus and method for holography 3-dimensional display
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G03H-001/08
G03H-001/22
G03H-001/04
G02F-001/03
G02F-001/07
G03H-001/02
출원번호
US-0267998
(2011-10-07)
등록번호
US-8982438
(2015-03-17)
우선권정보
KR-10-2010-0098830 (2010-10-11)
발명자
/ 주소
Choi, Kyu-hwan
Song, Hoon
Lee, Hong-seok
Choi, Yoon-sun
Bae, Jung-mok
Han, Seung-hoon
출원인 / 주소
Samsung Electronics Co., Ltd.
대리인 / 주소
NSIP Law
인용정보
피인용 횟수 :
1인용 특허 :
9
초록▼
An apparatus includes a recording light source configured to emit recording beams, an EASLM configured to time sequentially modulate the recording beams emitted from the recording light source according to hologram information corresponding to a 3-dimensional image spatially divided into a plurality
An apparatus includes a recording light source configured to emit recording beams, an EASLM configured to time sequentially modulate the recording beams emitted from the recording light source according to hologram information corresponding to a 3-dimensional image spatially divided into a plurality of portions, an OASLM configured to include a plurality of regions corresponding to the plurality of the divided portions of the 3-dimensional image and images on a region corresponding to the portions using the modulated recording beams to form a hologram, a scanning optical unit configured to reproduce the hologram formed by the recording beams serially modulated by the EASLM on a reduced scale and transmit the hologram to the regions of the OASLM corresponding to the portions, and a reproducing light source configured to produce a surface light and emit the surface light to the OASLM.
대표청구항▼
1. An apparatus for holography 3-dimensional display comprising: a recording light source configured to emit recording beams;an electrically addressable spatial light modulator (EASLM) configured to time sequentially modulate the recording beams according to hologram information, the hologram inform
1. An apparatus for holography 3-dimensional display comprising: a recording light source configured to emit recording beams;an electrically addressable spatial light modulator (EASLM) configured to time sequentially modulate the recording beams according to hologram information, the hologram information comprising information regarding a plurality of partial images which are divided from a 3-dimensional image;an optically addressable spatial light modulator (OASLM) comprising a plurality of regions corresponding to the plurality of partial images;a scanning optical unit configured to transmit the modulated recording beams to the plurality of regions of the OASLM, in synchronization with the time sequential modulation of the recording beams; anda reproducing light source unit configured to produce a surface light and emit the surface light to the OASLM,wherein the reproducing light source unit comprises:a light source; anda transparent optical panel configured to face the OASLM and comprise an incidence surface through which a light from the light source is incident, a total reflection surface in which the incident light is totally reflected, and an emission unit through which the light is emitted, surface of the emission unit being parallel to a surface of the OASLM and facing the surface of the OASLM entirely,wherein the scanning optical unit comprises:a projection optical unit:a scanning active optical device configured to control a proceeding direction of the modulated recording beam;a beam folding optical panel having an incidence surface through which the modulated recording beam is incident and an emission surface through which the modulated light beam is output, the beam folding optical panel being configured to guide the modulated recording beams incident via the incidence surface by an internal total reflection and to emit the modulated recording beams at a predetermined position of the emission surface: anda directional optical panel configured to control the direction of the modulated recording beams emitted from the beam folding optical panel, andwherein the modulated recording beam is refracted at the incidence surface of the beam folding optical panel. 2. The apparatus of claim 1, wherein the recording light source emits a blue light or an i-line light. 3. The apparatus of claim 1, wherein the EASLM comprises a digital micromirror device (DMD), a liquid crystal on silicon (LCoS), or a liquid crystal device (LCD). 4. The apparatus of claim 1, wherein the projection optical unit comprises two convex lenses or Fresnel lenses. 5. The apparatus of claim 1, wherein the scanning active optical device comprises a variable prism, a variable lens, or a variable grating. 6. The apparatus of claim 5, wherein the variable prism comprises an electro-wetting device configured to control a slope of a refracting surface according to an electrical control. 7. The apparatus of claim 1, wherein the beam folding optical panel comprises a light guide unit comprising the incidence surface through which light is incident, a total reflection surface in which the light is totally reflected, and the emission surface facing the total reflection surface and through which the light is emitted. 8. The apparatus of claim 7, wherein in response to a light that is incident via the incidence surface being totally reflected by the total reflection surface at least once and proceeds into the light guide unit, an incidence angle at the emission surface decreases as the number of reflections at the total reflection surface increases, so that the light passes the emission surface. 9. The apparatus of claim 7, wherein the light guide unit is a wedge type in which the distance between the total reflection surface and the emission surface is reduced at a position farther from the light source. 10. The apparatus of claim 1, wherein the directional optical panel is an inverted prism sheet. 11. The apparatus of claim 1, wherein the directional optical panel comprises a first layer and a second layer which comprise materials with different refractive indices, wherein a boundary surface between the first layer and the second layer has a prism pattern. 12. The apparatus of claim 1, wherein the transparent optical panel comprises a light guide unit that comprises the incidence surface and the total reflection surface, wherein the emission unit is integrally formed with the light guide unit at one surface of the light guide unit. 13. The apparatus of claim 12, wherein the emission unit comprises a plurality of emission units that protrude from one surface of the light guide unit, wherein the emission unit has an emission portion with a cross-section larger than that of an incidence portion of a light from the light guide unit. 14. The apparatus of claim 13, wherein the cross-section of the emission unit has a circular, an oval, or a polygonal shape. 15. The apparatus of claim 13, wherein the emission units are placed more closely together as the emission units are farther from the light source. 16. The apparatus of claim 13, wherein the size of the emission units increases as the emission units are farther from the light source. 17. The apparatus of claim 1, wherein the reproducing light source is spatially separately disposed from the other elements of the apparatus for holography 3-dimensional display. 18. The apparatus of claim 1, wherein the OASLM include a photosensitive layer and a liquid crystal layer sandwiched between two electrodes.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
Payne, Douglas; Slinger, Christophe W., Holographic displays.
Winston Roland (Chicago IL) Jacobson Benjamin A. (Chicago IL) Holman Robert L. (Naperville IL) Gitkind Neil A. (Chicago IL), Tapered multilayer luminaire devices.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.