Projector, screen, projector system, and scintillation removing apparatus for removing scintillation on an image display using a vibration generating unit
AssigneeSeiko Epson Corporation
InventorsHidehiro Akahane, Eiji Morikuni
Life of this patent
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Abstract
A projector includes a light diffusing unit that is vibratably provided to diffuse incident light by a vibration and to emit diffused light, the light diffusing unit having a unique resonance frequency, a vibration generating unit that has a piezoelectric element for vibrating the light diffusing unit, and a control unit that controls the vibration generating unit to vibrate the light diffusing unit at a frequency corresponding to the unique resonance frequency of the light diffusing unit. An image is displayed using the diffused light emitted from the light diffusing unit.
Claims19
A projector comprising:
- a light diffusing unit that is vibratably provided to diffuse incident light by a vibration and to emit diffused light, the light diffusing unit having a unique resonance frequency, the light diffusing unit displaying an image using the diffused light emitted from the light diffusing unit, and the light diffusing unit comprising a frame;
- a vibration generating unit that has a piezoelectric element for vibrating at least the frame of the light diffusing unit;
- and
- a control unit that controls the vibration generating unit to vibrate the light diffusing unit at a frequency corresponding to the unique resonance frequency of the light diffusing unit.
A screen comprising:
- a light diffusing unit that is vibratably provided to diffuse incident light by a vibration and to emit diffused light, the light diffusing unit having a unique resonance frequency, and the light diffusing unit comprising at least one of a frame and a main body;
- a vibration generating unit that has a piezoelectric element for vibrating the at least one of the frame and the main body of the light diffusing unit;
- and
- a control unit that controls the vibration generating unit to vibrate the light diffusing unit at a frequency corresponding to the unique resonance frequency of the light diffusing unit.
A scintillation removing apparatus comprising:
- a light diffusing unit that is vibratably provided to diffuse incident light by a vibration and to emit diffused light, the light diffusing unit having a unique resonance frequency, and the light diffusing unit comprising at least one of a frame and a main body;
- a vibration generating unit that has a piezoelectric element for vibrating the at least one of the frame and the main body of the light diffusing unit;
- and
- a control unit that controls the vibration generating unit to vibrate the light diffusing unit at a frequency corresponding to the unique resonance frequency of the light diffusing unit.
A scintillation removing apparatus for use with a casing, comprising:
- a light diffusing unit that diffuses light, the light diffusing unit comprising at least one of a frame and a main body;
- at least one support member that supports the light diffusing unit within the casing;
- a vibration generating unit including a piezoelectric element that vibrates the at least one of the frame and the main body of the light diffusing unit;
- a control signal generating unit that stores a unique frequency of the light diffusing unit and generates a control signal to vibrate the vibration generating unit at the unique frequency of the light diffusing unit;
- and
- a driving unit that receives the control signal from the control signal generating unit and supplies a driving voltage to vibrate the vibration generating unit.
Dependencies are inferred from the claim text.