| 摘要 |
PROBLEM TO BE SOLVED: To suppress a loss of light incident on a user's eye or aberration due to a half mirror, in an image display apparatus having an autofocus function. SOLUTION: The image display apparatus includes: a light scanning element 44a scanning the light emitted from a light emitting means for emitting light with intensity corresponding to image information; an eyepiece 50, which is scanned by the light scanning element 44a, and which allows the light having an exit pupil diameter smaller than the pupil diameter of the user's eye 80 to enter the pupil 81 of the user; a lens 64 imaging a predetermined image on an imaging means 61, the predetermined image formed on the retina by the light Lr present in the periphery of the light Lb made incident on the light scanning element 44a, of the light reflected by the retina 82 and passing through the eyepiece 50; and the imaging means 61 disposed at an imaging position by the lens 64 and imaging the predetermined image formed on the retina 82; and a control means controlling the focus in accordance with the results of imaging obtained by the imaging means 61. COPYRIGHT: (C)2010,JPO&INPIT |
