Projection apparatus and image projection changeover method
First Claim
Patent Images
1. A projection apparatus, comprising:
- a light source;
a spatial light modulator for modulating the incident light emitted from the light source;
a spatial light modulator control unit for generating, from an inputted image signal, a control signal for driving the spatial light modulator; and
a light source control unit for receiving data corresponding to the control signal for controlling the light source to operate the light source in a driven state, a stopped state and a standby state on the basis of the data.
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Abstract
The present invention provides a projection apparatus, comprising: a light source; a spatial light modulator for modulating the incident light emitted from the light source; a spatial light modulator control unit for generating, from an inputted image signal, a control signal for driving the spatial light modulator; and a light source control unit for receiving data corresponding to the control signal for controlling the light source to operate in one of three states consisted of a driven state, a stopped state and a standby state on the basis of the data.
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Citations
26 Claims
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1. A projection apparatus, comprising:
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a light source; a spatial light modulator for modulating the incident light emitted from the light source; a spatial light modulator control unit for generating, from an inputted image signal, a control signal for driving the spatial light modulator; and a light source control unit for receiving data corresponding to the control signal for controlling the light source to operate the light source in a driven state, a stopped state and a standby state on the basis of the data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An image projection changeover method for switching between projecting an image and not projecting an image by controlling a light source, comprising the steps of receiving a control signal for controlling the light source;
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controlling the light source for switching between projecting an image and not projecting an image under a first state for the light source outputting light at an intensity ready for projecting an image and a second state for the light source outputting light at an intensity for not projecting an image or a third state for controlling the light source for not projecting a light while providing an electric power to the light source when an image is not projected on the basis of the control signal. - View Dependent Claims (14, 15, 16)
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17. A projection apparatus, comprising:
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a light source; a spatial light modulator for modulating the light emitted from the light source; an electric current supplier for supplying the light source with an electric current; a plural switches disposed and interconnected in parallel between the light source and electric current supplier; and a light source control circuit for independently controlling the switches by controlling the electric current supplier in accordance with the control state of the spatial light modulator. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification