Virtual image display device
AssigneeJVCKENWOOD Corporation
InventorsDaisuke KOJIMA, Toru SHINZO
Life of this patent
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Abstract
A virtual image display device includes: a display unit that generates an image display light; and a projection optical system that projects the image display light L toward the virtual image presentation plate. The projection optical system includes a projection mirror that projects the image display light toward the virtual image presentation plate and an optical device of transmission type provided such that a light axis intersects at an angle to a light path of the projection optical system. The display unit is provided at a focal point of a composite optical system within a meridional plane, the composite optical system being formed by the virtual image presentation plate and the projection optical system.
Claims10
A virtual image display device for presenting a virtual image to a user via a virtual image presentation plate, comprising:
- a display unit that generates an image display light;
- and
- a projection optical system that projects the image display light toward the virtual image presentation plate, wherein
- the projection optical system includes a projection mirror that projects the image display light toward the virtual image presentation plate and an optical device of transmission type provided such that a light axis of the optical device intersects at an angle to a light path of the projection optical system,
- the display unit is provided at a focal point of a composite optical system within a meridional plane, the composite optical system being formed by the virtual image presentation plate and the projection optical system, and
- the focal point of the composite optical system within the meridional plane is a position of convergence of parallel beams assumed to be incident from the user toward the virtual image presentation plate along the meridional plane of the virtual image presentation plate.
Dependencies are inferred from the claim text.