Illuminating device, projecting device, and method for controlling projecting device
AssigneeRicoh Company, Ltd.
InventorsKazuhiro Fujita, Tatsuya Takahashi
Life of this patent
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Abstract
An illuminating device for emitting light onto a light modulating element that forms an image in accordance with a modulation signal and irradiates a target to be illuminated with light, the illuminating device includes a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction, equal to or more than two light collecting units that are arranged for the respective equal to or more than two phosphors, and collect light components emitted from the respective equal to or more than two phosphors, and a driving unit that drives the substrate in the predetermined direction.
Claims17
An illuminating device for emitting light onto a light modulating element that forms an image in accordance with a modulation signal and irradiates a target to be illuminated with light, the illuminating device comprising:
- a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction;
- equal to or more than two light collecting units that are arranged for the respective equal to or more than two phosphors, and collect light components emitted from the respective equal to or more than two phosphors;
- equal to or more than two light sources;
- and
- a driving unit that drives the substrate in the predetermined direction,
- wherein the equal to or more than two phosphors are formed on the substrate on concentric circles,
- the driving unit rotationally drives the substrate about center of the concentric circles as an axis, and
- a respective light from the equal to or more than two light sources are irradiated into respective different circles that are in the concentric circle.
A method for controlling a projecting device that projects an image based on image data, the method comprising:
- driving, by a driving unit, a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction;
- and
- controlling, by a controller, equal to or more than two light sources that irradiate the respective equal to or more than two phosphors that are formed on the substrate on concentric circles with the exciting light to light up sequentially in one frame period of the image data.
An illuminating device for emitting light onto a light modulating element that forms an image in accordance with a modulation signal and irradiates a target to be illuminated with light, the illuminating device comprising:
- a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction;
- equal to or more than two light collecting units that are arranged for the respective equal to or more than two phosphors, and collect light components emitted from the respective equal to or more than two phosphors;
- and
- a driving unit that drives the substrate in the predetermined direction,
- wherein for each of a first phosphor and a second phosphor that are adjacent to each other among the equal to or more than two phosphors, a space between an irradiation position of the exciting light onto the first phosphor and an irradiation position of the exciting light onto the second phosphor is made minimum.
An illuminating device for emitting light onto a light modulating element that forms an image in accordance with a modulation signal and irradiates a target to be illuminated with light, the illuminating device comprising:
- a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction;
- equal to or more than two light collecting units that are arranged for the respective equal to or more than two phosphors, and collect light components emitted from the respective equal to or more than two phosphors;
- and
- a driving unit that drives the substrate in the predetermined direction,
- wherein for each of a first phosphor and a second phosphor that are adjacent to each other among the equal to or more than two phosphors, a space between an irradiation position of the exciting light onto the first phosphor and an irradiation position of the exciting light onto the second phosphor is made maximum.
A light path for an illuminating device for emitting light onto a light modulating element that forms an image in accordance with a modulation signal and irradiates a target to be illuminated with light, the light path comprising:
- a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction:
- equal to or more than two light collecting units that are arranged for the respective equal to or more than two phosphors, and collect light components emitted from the respective equal to or more than two phosphors;
- a driving unit that drives the substrate in the predetermined direction,
- wherein the equal to or more than two phosphors are formed on the substrate on concentric circles,
- the driving unit rotationally drives the substrate about center of the concentric circles as an axis, and
- a respective light are irradiated into respective different circles that are in the concentric circle.
Dependencies are inferred from the claim text.