IMAGE DISPLAY APPARATUS
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is an image display apparatus which can reduce the influence of image quality degradation caused by a spot size on a screen generated when using a light source having a high directivity such as a laser beam and scan-type image formation means. The image display apparatus includes: a light source device (10) which emits light; scan-type image formation means (such as an MEMS mirror (14)) which forms an image on a screen (15); a variable focus device (13) arranged in the optical path of the light emitted from the light source device (10) to reach the image formation means; and control means which controls the variable focus device (13) so as to modify the spot size of the light beam projected onto the screen (15) in accordance with a projected image size or an user operation.
51 Citations
22 Claims
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1-11. -11. (canceled)
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12. An image display apparatus comprising:
- a light source device that emits a light beam;
a scanning type image forming means that forms an image on a screen;
a variable focus device disposed on a light path which the light beam emitted from the light source device reaches the image forming means; and
a control means that controls the variable focus device, wherein the control means controls the variable focus device to change a spot size of a light beam projected on the screen in accordance with a projection size that is a projected image size on the screen. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- a light source device that emits a light beam;
Specification