Composite display apparatus and head mounted display system using the same
First Claim
1. A display comprising:
- a display optical system for guiding a light beam from a display means to the eyeballs of an observer;
an image-pickup optical system for allowing a light beam from its external world to form an image on an image-pickup means; and
optical path separating means provided in optical path for allowing an ocular optical axis of the light beam of said display optical system entering the eyeballs of the observer, or an imaginary ocular optical axis which is an extension of said ocular optical axis, and an external world optical axis of the light beam entering said image-pickup optical system from the external world to substantially coincide;
the display means displaying image information periodically and intermittently, the image-pickup means recording image information from the external world periodically while the display means is not displaying image information,wherein the display further comprises change means capable of changing the display period of displaying image information on the display means and/or the image-pickup period of recording image information from the external world in the image-pickup means.
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Accused Products
Abstract
A composite display apparatus keeps both optical density of display images formed by a display means and shutter speed of cameras such as a CCD in an optimum state relative to the external world light (see-through light), even in environments where the quantity of see-through light varies widely. The composite display apparatus includes a display optical system for guiding a light beam from a display means to the eyeballs of an observer; an image-pickup optical system for allowing an external light beam to form an image on an image-pickup means; and an optical path separating means provided in an optical path for allowing an ocular optical axis of the light beam of the display optical system entering the eyeballs of the observer, or an imaginary ocular optical axis which is an extension of the ocular optical axis, and an external world optical axis of the light beam entering the image-pickup optical system to substantially coincide.
72 Citations
13 Claims
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1. A display comprising:
- a display optical system for guiding a light beam from a display means to the eyeballs of an observer;
an image-pickup optical system for allowing a light beam from its external world to form an image on an image-pickup means; and
optical path separating means provided in optical path for allowing an ocular optical axis of the light beam of said display optical system entering the eyeballs of the observer, or an imaginary ocular optical axis which is an extension of said ocular optical axis, and an external world optical axis of the light beam entering said image-pickup optical system from the external world to substantially coincide;
the display means displaying image information periodically and intermittently, the image-pickup means recording image information from the external world periodically while the display means is not displaying image information,wherein the display further comprises change means capable of changing the display period of displaying image information on the display means and/or the image-pickup period of recording image information from the external world in the image-pickup means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
the operation switching means having a first state in which the external world light quantity detection means is allowed to be effective, a second state in which the light quantity adjustment means is allowed to be effective, and a third state in which both external world light quantity detection means and light quantity adjustment means are allowed to be invalid, the change means changing the display period and/or the image-pickup period according to the light quantity detected by the external world light quantity detection means when the operation switching means is in the first state, changing the display period and/or the image-pickup period based on the values set through the light quantity adjustment means when the operation switching means is in the second state, and fixing the display period and/or the image-pickup period at fixed values when the operation switching means is in the third state. -
11. The composite display apparatus according to claim 1, wherein the optical path separating means consists of an eccentrically curved reflection surface or a half mirror surface.
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12. The composite display apparatus according to claim 1, wherein the image-pickup optical system and the display optical system are separated into optical paths in the opposite directions by the optical path separating means, the display optical system including the reflection surface on one side of the optical path separating means, the image-pickup optical system including the reflection surface on the other side of said optical path separating means.
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13. A head mounted display system using the composite display apparatus according to claim 1.
- a display optical system for guiding a light beam from a display means to the eyeballs of an observer;
Specification