Canon Kabushiki Kaisha

Tomohiro Kawamoto

Shingo Kitamura

Yuta Nito

An image capturing control apparatus to control image capturing of an image capturing apparatus includes a first instruction unit configured to instruct the image capturing apparatus to capture a first image by applying an exposure time to each region on an image capturing surface divided into a plurality of regions, a calculation unit configured to calculate an exposure time to be equally applied to the plurality of regions based on the exposure time applied to each region in the first image, and a second instruction unit configured to instruct the image capturing apparatus to capture a second image by equally applying the exposure time calculated by the calculation unit to the plurality of regions.

Image capturing control apparatus, image capturing apparatus, control method, and storage medium

An image capture device includes an image capture circuit, a control unit, a determination unit, and a filter control unit. The image capture circuit is configured to capture an image formed by an image capture optical system. The control unit is configured to control exposure by determining an exposure time of each of pixel groups including one or more pixels on an image capture surface of the image capture circuit. The determination unit is configured to, on a basis of the exposure time, determine whether an image capture mode is to be a first mode in which a filter configured to attenuate infrared rays is inserted in an optical path of the image capture optical system or a second mode in which the filter is removed from the optical path. The filter control unit is configured to control insertion and removal of the filter.

Image capture device having control to insert or remove filter, control method, and storage medium

An information processing apparatus which accepts designation of a first image category from among a plurality of image categories including a visible light image, an infrared light image, and a composite image, accepts designation of a second image category different from the first image category from among the plurality of image categories, displays an image of the accepted first image category in a display region of a display unit, and accepts designation of a region in the image of the first image category displayed in the display region, wherein an image of the accepted second image category is displayed in the accepted region.

Information processing apparatus having capability of appropriately setting regions displayed within an image capturing region using different image categories

Information processing apparatus having capability of appropriately setting regions displayed within an image capturing region using different categories

A powered device receives power from at least one of a first power supply and a second power supply having a voltage higher than a voltage of the first power supply. The powered device includes a first load unit, a second load unit electrically separated from the first load unit, and a changing unit configured to supply power from the first power supply to the first load unit and the second load unit in a case where the first power supply is connected to the powered device and the second power supply is not connected to the powered device, and supply power from the second power supply to the first load unit and from the first power supply to the second load unit in a case where the first power supply and the second power supply are connected to the powered device.

Powered device and method of changing power supply therefor

A power supply apparatus receives power from a first power source and a second power source, and provides power to a load section. The apparatus comprises: a first supply unit configured to supply power of a first converted voltage; a second supply unit configured to supply power of a second voltage; a third supply unit configured to supply power of a second converted voltage; and a control unit configured to control power supply to the load section by one of the first supply unit, the second supply unit, and the third supply unit, based on a power receiving state of power from the first power source and the second power source. The control unit controls to supply power to the load section by the third supply unit for a predetermined period after the first power source is connected.

Power supply apparatus

A light emission apparatus includes a detection unit, a first drive unit, and a second drive unit. The detection unit detects the state of a detection element. The first drive unit controls the light amount of a light beam to be emitted by a first light emitting element based on the state of the detection element detected by the detection unit. The second drive unit controls the light amount of a light beam to be emitted by a second light emitting element based on the state of the detection element detected by the detection unit.

Light emission apparatus, optical scanning apparatus having light emission apparatus, and image forming apparatus

The invention provides an exposure apparatus having a configuration such that, when a single laser light source having a plurality of light-emitting points is driven by a plurality of laser control apparatuses, mutual monitoring of the control state of the respective laser control apparatuses is possible, thus reducing malfunctions due to the effects of noise, and also provides a method to control this exposure apparatus, and an image forming apparatus. To accomplish this, the exposure apparatus does not execute light amount control of the light source to be driven when the determination unit has determined that another driving unit is causing the light source to be driven to emit light, and executes the light amount control of the light source to be driven when the determination unit has determined that another driving unit is not causing the light source to be driven to emit light.

Exposure apparatus, control method thereof, and image forming apparatus

An optical scanning apparatus capable of being applied to an image forming apparatus includes a light source which emits a light beam; a modulator which pulse-width modulates drive current supplied to the light source; and a current adding unit which adds a supplemental current to the pulse-width modulated drive current at the rising edge of a pulse thereof.

Optical scanning apparatus, image forming apparatus and control method

A light scanning apparatus includes a plurality of light sources. A detection unit detects the light power of a light beam output from at least one of the plurality of light sources. A control unit controls the driving current of at least one selected light source on the basis of the detection result by the detection unit such that the light power of the selected light source equals a target light power. The light source is selected from the plurality of light sources on the basis of the light-emitting characteristic of each light source. The control unit controls, on the basis of the driving current of the selected light source, the driving currents of light sources which remain unselected in the plurality of light sources.

Light scanning apparatus, image forming apparatus, and light power control method

An optical power control apparatus includes a changing unit which changes, a plurality of number of times, the value of a current flowing to an optical beam output apparatus, and an obtaining unit which obtains, in correspondence with each current value, a peripheral optical power representing an optical power at the peripheral part of the spot of the optical beam output from the optical beam output apparatus. The optical power control apparatus also includes a correction unit which corrects the peripheral optical power so that the peripheral optical power and a central optical power representing an optical power at the central part of the spot have an approximately linear relationship in correspondence with each current value. The optical power control apparatus also includes a control unit which controls the optical power of the optical beam output from the optical beam output apparatus in accordance with the corrected peripheral optical power.

Optical power control apparatus, optical beam scanning apparatus, image forming apparatus, and optical power control method

An optical scanning device includes a beam generating unit configured to generate a beam of light, a scanning unit with a plurality of scanning planes configured to deflect the beam of light generated by the beam generating unit and cause the beam of light to scan an image carrier in a main-scanning direction, a micro mirror configured to deflect the beam of light generated by the beam generating unit and thereby enable the deflected beam of light to fall on the scanning unit, a position detecting unit configured to detect a position of the beam of light deflected by the micro mirror, an input voltage control unit configured to control an input voltage value for inclining the micro mirror and thereby causing the beam of light to deflect, and an input voltage determining unit configured to control the input voltage value controlled by the input voltage control unit.

Optical scanning device

The light beam deflection cycle of a rotational polygonal mirror includes first and third sections in which a latent image is not formed, and a second section in which the latent image is formed. A driving signal supply unit supplies a driving signal of a frequency less than the resonance frequency of a resonant driving type mirror to the resonant driving type mirror in the first section. The driving signal supply unit keeps the deflection angle of the resonant driving type mirror at the first target deflection angle in the second section. The driving signal supply unit supplies a driving signal of a frequency less than the resonance frequency of the resonant driving type mirror to the resonant driving type mirror in the third section. The optical scanning apparatus is used in an image forming apparatus.

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Tokyo, Japan

Tomohiro Kawamoto