Image output apparatus, operation method for an image output apparatus, electronic circuit, electronic apparatus, and program
AssigneeSony Corporation
InventorsTatsuki Nishino, Susumu Seino
Life of this patent
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Abstract
An image output apparatus includes a light emitting unit, a power supplying unit, and a control unit. The light emitting unit is configured to emit a laser beam. The power supplying unit is configured to supply power to the light emitting unit at a predetermined voltage. The control unit is configured to control the power supplying unit to supply the power to the light emitting unit in a predetermined period at the voltage associated with a peak light emission amount of the light emitting unit in image data for the predetermined period.
Claims20
An image output apparatus comprising:
- a laser diode configured to emit a beam of light, an intensity of the beam is an emission amount of the beam;
- a laser driver that uses an image signal to generate a drive signal before outputting the drive signal to a cathode of the laser diode, the laser diode is configured to use the drive signal to adjust the emission amount of the beam;
- a power source that sets an output voltage to a voltage level before outputting the output voltage to an anode of the laser diode, the laser diode is configured to use the output voltage to adjust the emission amount of the beam;
- a power monitor configured to electronically convert at least a portion of the beam into a measured light emission amount;
- and
- a controller that uses the measured light emission amount to create output voltage information, the power source is controllable by the output voltage information to set the output voltage at the voltage level.
An operation method for an image output apparatus comprising:
- emitting a beam of light from a laser diode, an intensity of the beam is an emission amount of the beam;
- using an image signal to generate a drive signal before outputting the drive signal to a cathode of the laser diode, the laser uses the drive signal to adjust the emission amount of the beam;
- setting an output voltage to a voltage level before outputting the output voltage to an anode of the laser diode, the laser diode uses the output voltage to adjust the emission amount of the beam;
- electronically, by a power monitor, converting at least a portion of the beam into a measured light emission amount;
- using the measured light emission amount to create output voltage information;
- and
- controlling a power source with the output voltage information to set the output voltage at the voltage level.
Dependencies are inferred from the claim text.