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US 6,144,476 AGranted
Image display device
AssigneeMinolta Co., Ltd.
InventorsYasushi Tanijiri, Takatoshi Ishikawa, Kenji Ishibashi
Life of this patent
Estimating the term…
Abstract
An image display device having a scanning device for scanning light from a light source and for projecting a virtual image on a pupil of a viewer. The scanning device has a first mirror and a second mirror that scan the light in a same direction.
Claims25
An image display device comprising:
- a scanning device for scanning light from a light source and for projecting light on a pupil of a viewer for viewing a virtual image, said scanning device having a first mirror that scans a first light in a first direction and a second mirror that scans a second light in said first direction, wherein said first light and said second light are separate and distinct.
A head mounted display device for projecting light on a pupil of a viewer for viewing a virtual image, comprising:
- a scanning device having a first mirror for scanning a first light in a first direction and a second mirror for scanning a second light in said first direction, wherein said first light and said second light are separate and distinct.
An image display device for projecting light on a pupil of a viewer for viewing a virtual image, comprising:
- a first mirror that is rotatable about a first rotation axis and that scans a first light;
- a second mirror that is rotatable about a second rotation axis and that scans a second light that is separate and distinct from said first light, said first rotation axis being different from said second rotation axis, said first rotation axis and said second rotation axis being substantially located in a common plane;
- a first device for rotating said first mirror;
- a second device for rotating said second mirror;
- a first phase detector for detecting a phase of the first mirror;
- a second phase detector for detecting a phase of the second mirror;
- and
- a controller for controlling said first device and said second device to rotate said first mirror and said second mirror synchronously based on the phases detected by the first and second phase detectors.
5 more elements
Dependencies are inferred from the claim text.