BEAM SCANNING-TYPE DISPLAY DEVICE, METHOD, PROGRAM AND INTEGRATED CIRCUIT
First Claim
1. A beam scanning-type display device comprising:
- a light source which emits a beam;
a scanning unit configured to perform scanning using the beam emitted from said light source;
a deflecting unit configured to deflect the beam used for the scanning performed by said scanning unit towards an eye of a user; and
a wavefront shape changing unit configured to change a wavefront shape of the beam emitted from said light source so that a spot size of the beam falls within a predetermined allowable range, and output the beam to said scanning unit.
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Abstract
A beam scanning-type display device used as a head-mounted display (HMD) or a head-up display (HUD) includes a light source (101) which emits a beam, a scanning unit (103) which performs scanning using the beam emitted from the light source (101), a deflecting unit (104) which deflects the beam used for the scanning by the scanning unit (103) in the direction toward an eye of a user, and a wavefront shape changing unit (102) which changes the wavefront shape of the beam from the light source (101) so that the beam spot size falls within the predetermined allowable range, and emits the beam to the wavefront shape changing unit (102).
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Citations
30 Claims
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1. A beam scanning-type display device comprising:
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a light source which emits a beam; a scanning unit configured to perform scanning using the beam emitted from said light source; a deflecting unit configured to deflect the beam used for the scanning performed by said scanning unit towards an eye of a user; and a wavefront shape changing unit configured to change a wavefront shape of the beam emitted from said light source so that a spot size of the beam falls within a predetermined allowable range, and output the beam to said scanning unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A beam scanning display method comprising:
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emitting a beam; performing scanning using the beam emitted in said emitting; deflecting the beam used for the scanning performed in said performing scanning; and changing a wavefront shape of the beam emitted in said emitting so that a spot size of the beam falls within a predetermined allowable range, and outputting the beam for said performing scanning.
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29. A program causing a computer to execute:
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emitting a beam; performing scanning using the beam emitted in the emitting; deflecting the beam used for the scanning performed in the performing scanning; and changing a wavefront shape of the beam emitted in the emitting so that a spot size of the beam falls within a predetermined allowable range, and outputting the beam for the performing scanning.
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30. An integrated circuit comprising:
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a light source which emits a beam; a scanning unit configured to perform scanning using the beam emitted from said light source; a deflecting unit configured to deflect the beam used for the scanning performed by said scanning unit towards an eye of a user; and a wavefront shape changing unit configured to change a wavefront shape of the beam emitted from said light source so that a spot size of the beam falls within a predetermined allowable range, and output the beam to said scanning unit.
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Specification