| 摘要 |
PROBLEM TO BE SOLVED: To reduce fluctuations of a viewing-angle and an image distortion, also, to adjust an exit pupil position with respect to the position of observer's pupils and move the exit pupil in accordance with the shift of the observer's pupils. SOLUTION: The scanning type display device includes: a light source 101; a scanning unit 104 for scanning the luminous flux emitted from the light source; a scanning optical system 105 for condensing the luminous flux from the scanning unit; and an eyepiece optical system 106 for guiding the luminous flux from the first optical system to the exit pupil 107 where the observer's eyes 108 are arranged. The luminous flux directed from the scanning optical system to the eyepiece optical system has telecentricity. The eyepiece optical system includes a first reflection surface 106c that reflects the luminous flux from the scanning optical system toward the exit pupil. The scanning type display device includes a first mechanism 110 for moving the eyepiece optical system along the advancing direction of the luminous flux from the scanning optical system to the eyepiece optical system, with respect to the scanning optical system and the scanning unit. COPYRIGHT: (C)2010,JPO&INPIT
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