SCANNING IMAGE DISPLAY APPARATUS, GOGGLE-SHAPED HEAD-MOUNTED DISPLAY, AND AUTOMOBILE
First Claim
1. A scanning image display apparatus comprising:
- a light source which emits a laser beam; and
a scanning unit configured to two-dimensionally scan a scanning surface with the laser beam by two-dimensionally rotating a reflection surface which reflects the laser beam emitted by said light source,wherein, when seen from a side which is perpendicular to an incident plane including a laser beam incident on said scanning unit and a laser beam scanned on said scanning surface by said scanning unit, with said scanning unit held at a rotation center position of said reflection surface and,said light source and said scanning unit are arranged to have a positional relationship where the laser beam emitted by said light source is incident on said reflection surface, the laser beam being incident on said reflection surface obliquely at an initial angle of incidence α
0 either clockwise or counterclockwise with respect to a first normal line of said reflection surface at an incident position of the laser beam, andsaid scanning unit and said scanning surface are arranged to have a positional relationship where the laser beam scanned by said scanning unit is incident on said scanning surface, the laser beam being incident on said scanning surface obliquely at an initial angle of incidence β
0 the other of clockwise or counterclockwise with respect to a second normal line of said scanning surface at an incident position of the laser beam.
2 Assignments
0 Petitions
Accused Products
Abstract
A scanning image display apparatus (20) includes a light source (11) and a biaxial scanning mirror (12) two-dimensionally scans a scanning surface (23) with the laser beam. When seen from a side perpendicular to an incident plane (15) including a laser beam incident on the biaxial scanning mirror (12) and a laser beam scanned on the scanning surface (23) by the biaxial scanning mirror (12), with the biaxial scanning mirror (12) held at a rotation center position of the reflection surface, the light source (11) and the biaxial scanning mirror (12) are arranged to have a positional relationship where the laser beam is incident on the reflection surface obliquely at an initial angle of incidence α0 either clockwise or counterclockwise with respect to a first normal line of the reflection surface, and the biaxial scanning mirror (12) and the scanning surface (23) are arranged to have a positional relationship where the laser beam is incident on the scanning surface (23) obliquely at an initial angle of incidence β0 the other of clockwise or counterclockwise with respect to a second normal line of the scanning surface (23).
194 Citations
8 Claims
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1. A scanning image display apparatus comprising:
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a light source which emits a laser beam; and a scanning unit configured to two-dimensionally scan a scanning surface with the laser beam by two-dimensionally rotating a reflection surface which reflects the laser beam emitted by said light source, wherein, when seen from a side which is perpendicular to an incident plane including a laser beam incident on said scanning unit and a laser beam scanned on said scanning surface by said scanning unit, with said scanning unit held at a rotation center position of said reflection surface and, said light source and said scanning unit are arranged to have a positional relationship where the laser beam emitted by said light source is incident on said reflection surface, the laser beam being incident on said reflection surface obliquely at an initial angle of incidence α
0 either clockwise or counterclockwise with respect to a first normal line of said reflection surface at an incident position of the laser beam, andsaid scanning unit and said scanning surface are arranged to have a positional relationship where the laser beam scanned by said scanning unit is incident on said scanning surface, the laser beam being incident on said scanning surface obliquely at an initial angle of incidence β
0 the other of clockwise or counterclockwise with respect to a second normal line of said scanning surface at an incident position of the laser beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification