Drive method of spatial light modulator array, light modulating device and image forming apparatus
First Claim
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1. A drive method of a spatial light modulator array, the spatial light modulator array including plural spatial light modulators each comprising:
- a storage part for storing drive data; and
a light modulating part capable of taking at least an ON state to allow light to be emitted and an OFF state to prohibit light from being emitted according to the drive data, the method comprising;
writing the drive data in the storage part; and
changing a state of the light modulating part according to the drive data, thereby performing a light modulation, wherein a control is performed to cause the light modulating part to have the OFF state within a period from a transition to a first state corresponding to first drive data based on a first image to a transition to a second state corresponding to second drive data based on a second image, and in this state, the light modulating part is caused to transition to the second state.
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Abstract
A drive method of a light modulator array in which a time of an ON state and a time of an OFF state can always be made constant. In the case where the optical output of an image forming apparatus is switched from ON to ON, from ON to OFF, from OFF to ON, or from OFF to OFF based on an image desired to be formed, a movable mirror is forcibly brought into an OFF before switching, and the switching to the optical output ON is started in this state.
50 Citations
21 Claims
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1. A drive method of a spatial light modulator array, the spatial light modulator array including plural spatial light modulators each comprising:
- a storage part for storing drive data; and
a light modulating part capable of taking at least an ON state to allow light to be emitted and an OFF state to prohibit light from being emitted according to the drive data,the method comprising;
writing the drive data in the storage part; and
changing a state of the light modulating part according to the drive data, thereby performing a light modulation, wherein a control is performed to cause the light modulating part to have the OFF state within a period from a transition to a first state corresponding to first drive data based on a first image to a transition to a second state corresponding to second drive data based on a second image, and in this state, the light modulating part is caused to transition to the second state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a storage part for storing drive data; and
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11. A light modulating device comprising:
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a spatial light modulator array including plural spatial light modulators each comprising;
a storage part for storing drive data; and
a light modulating part capable of taking at least an ON state to allow light to be emitted and an OFF state to prohibit light from being emitted according to the drive data; and
a light modulating control part which causes the drive data to be written in the storage part, causes a state of the light modulating part to be changed according to the written drive data, and causes light modulation to be performed, wherein the light modulating control part performs a control to cause the light modulating part to have the OFF state within a period from a transition to a first state corresponding to first drive data based on a first image to a transition to a second state corresponding to second drive data based on a second image, and causes, in this state, the light modulating part to transition to the second state. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification