Method of and apparatus for viewing an image
First Claim
1. An apparatus comprising:
- an image generator for generating an image;
an optical system configured to transmit light of the image to an eye of a user, the optical system comprising a first switchable holographic optical element configured to operate in an active state or an inactive state, wherein the first switchable holographic optical element is configured to diffract the image light incident thereon when the first switchable holographic optical element operates in the active state, and wherein the first switchable holographic optical element transmits the image light incident thereon without substantial alteration when the first switchable holographic optical element operates in the inactive state;
a control circuit coupled to the first switchable holographic optical element, wherein the control circuit is configured to generate a first control signal, wherein the first holographic optical element operates between the active and inactive states according to the control signal generated by the control circuit;
a headset comprising a housing, the housing arranged to be positioned near a temple region of the user'"'"'s head when the user wears the headset, wherein the image generator, the first control circuit and the first switchable holographic optical element are disposed within the housing.
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Abstract
A head mountable apparatus is described for transmitting an image to the user'"'"'s eye using switchable holographic optical elements. In one embodiment, an optical system is provided that is configured to receive an image provided by an image generator and which forms a light path along which light is transmitted from the image generator to an eye of the user. The optical system includes a first switchable holographic optical element configured to operate in an active state or an inactive state, wherein the first switchable holographic optical element is configured to diffract the image light incident thereon when the first switchable holographic optical element operates in the active state, and wherein the first switchable holographic optical element transmits the image light incident thereon without substantial alteration when the first switchable holographic optical element operates in the inactive state.
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Citations
14 Claims
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1. An apparatus comprising:
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an image generator for generating an image;
an optical system configured to transmit light of the image to an eye of a user, the optical system comprising a first switchable holographic optical element configured to operate in an active state or an inactive state, wherein the first switchable holographic optical element is configured to diffract the image light incident thereon when the first switchable holographic optical element operates in the active state, and wherein the first switchable holographic optical element transmits the image light incident thereon without substantial alteration when the first switchable holographic optical element operates in the inactive state;
a control circuit coupled to the first switchable holographic optical element, wherein the control circuit is configured to generate a first control signal, wherein the first holographic optical element operates between the active and inactive states according to the control signal generated by the control circuit;
a headset comprising a housing, the housing arranged to be positioned near a temple region of the user'"'"'s head when the user wears the headset, wherein the image generator, the first control circuit and the first switchable holographic optical element are disposed within the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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first and second image generators for generating image light;
first and second optical systems configured to transmit image light from the first and second image generators, respectively, to left and right eyes of a user, the first and second optical systems comprising first switchable and second holographic optical elements, respectively, each of which is configured to operate in an active state or an inactive state, wherein the first and second switchable holographic optical elements are configured to diffract image light incident thereon when the first and second switchable holographic optical elements operate in the active state, and wherein the first and second switchable holographic optical elements transmit image light incident thereon without substantial alteration when the first and second switchable holographic optical elements operate in the inactive state;
a headset comprising first and second housings, the first and second housings arranged to be positioned near left and right temple regions of the user'"'"'s head when the user wears the headset, wherein the first and second image generators are disposed in the first and second housings, respectively, and wherein the first and second switchable holographic optical elements are disposed within the first and second housings, respectively. - View Dependent Claims (12, 13, 14)
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Specification