Abstract: A control unit varies a drive waveform of a scanning angle for moving a spot irradiation position in a second direction according to a length of a spot in the second direction. Specifically, the control unit reduces the number of segments in the second direction followed by the spot irradiation position in a case where the length of the spot in the second direction is a predetermined first length, as compared with the number of segments in the second direction followed by the spot irradiation position in a case where the length of the spot in the second direction is a second length shorter than the first length.

Abstract: A control unit increases the number of segments in a second direction followed by a spot irradiation position in a case where a length of an overall field of view in the second direction is a predetermined first length, as compared with the number of segments in the second direction followed by the spot irradiation position in a case where the length of the overall field of view in the second direction is a second length shorter than the first length. Further, the control unit expands a range followed by the spot irradiation position in a case where a size of the overall field of view when viewed from a third direction is a first size, as compared with a range followed by the spot irradiation position in a case where the size of the overall field of view when viewed from the third direction is a second size smaller than the first size.

Abstract: A cooling efficiency is increased. An inkjet head is provided with a head main body for jetting ink, a cooling pipe which has corrosion resistance to the ink, and through which the ink for cooling a drive circuit passes, and a cooling member which has higher thermal conductivity than that of the cooling pipe, in which at least a part of the cooling pipe is embedded, and which has recessed parts in at least a part of a portion surrounding the cooling pipe.

Abstract: An optical device includes a light receiving unit that receives reflected light reflected from an object by emitted light emitted from a light emitting unit, an optical element that guides incident light including the reflected light and ambient light from a region including the object to a position on the light receiving unit according to a component included in the incident light, and a detection device that detects the reflected light based on a distribution of received light intensity on the light receiving unit. A light receiving element of the light receiving unit is arranged in a second direction intersecting a first direction in which the incident light is dispersed by the optical element.

Abstract: Provided is an optical device capable of suppressing variations in the range for scanning light. This optical device comprises: a light source that emits a laser beam; a MEMS mirror that scans the laser beam toward a predetermined range; and a diffraction grating that guides the laser beam to the MEMS mirror by guiding the laser beam in a direction corresponding to the wavelength thereof. The optical device also comprises an MEMS control unit that performs control such that, by employing a change in the optical path of the laser beam caused through the diffraction grating by a change in the wavelength of the laser beam, variations in the scanning range of the laser beam by the MEMS mirror are suppressed.

Abstract: An optical device comprises: a line sensor having a plurality of light reception elements that receive incident light including reflection light resulting from laser light having been emitted from a light source and reflected by an object, and including ambient light; a diffraction grating that guides the incident light to the plurality of light reception elements by diffracting the incident light to a direction depending on the wavelength; and a control unit that detects the reflection light on the basis of the light reception amounts of the light reception elements. The diffraction grating is configured to guide, to one of the plurality of light reception elements, a wavelength within a predetermined range that includes the wavelength of the laser light emitted from the light source.

Abstract: A control apparatus includes at least one processor configured to perform operations as a detection unit configured to detect a specific area based on a signal imaged by an image sensor configured to provide a first imaging operation and a second imaging operation, and a selection unit configured to select an imaging timing of the second imaging operation based on the first imaging operation of the image sensor. The detection unit detects the specific area using the signal imaged at the imaging timing selected by the selection unit.

Abstract: A control apparatus includes at least one processor configured to perform operations as a detection unit configured to detect a specific area based on a signal imaged by an image sensor configured to provide a first imaging operation and a second imaging operation, and a selection unit configured to select an imaging timing of the second imaging operation based on the first imaging operation of the image sensor. The detection unit detects the specific area using the signal imaged at the imaging timing selected by the selection unit.

Abstract: An optical device comprises a diffraction grating that guides a laser light emitted from a light source to a direction having an angle depending on the wavelength, and guides a reflection light resulting from the guided laser light having been reflected by an object and ambient light to respective directions in angles depending on the wavelengths of these lights. The optical device further comprises a light reception element that receives the light guided by the diffraction grating. The reflection light of the laser light is incident on the diffraction grating at the same angle as the angle at which the laser light has been guided by the diffraction grating, and is guided by the diffraction grating at the same angle as the angle at which the laser light has been incident on the diffraction grating.

Abstract: An optical device comprises: a line sensor having a plurality of light reception elements that receive incident light including reflection light resulting from laser light having been emitted from a light source and reflected by an object, and including ambient light; a diffraction grating that guides the incident light to the plurality of light reception elements by diffracting the incident light to a direction depending on the wavelength; and a control unit that detects the reflection light on the basis of the light reception amounts of the light reception elements. The diffraction grating is configured to guide, to one of the plurality of light reception elements, a wavelength within a predetermined range that includes the wavelength of the laser light emitted from the light source.

Abstract: An imaging apparatus includes a first calculation unit configured to calculate angular velocity of an object to the imaging apparatus, based on a detection result of a first detection unit that detects a motion vector of the object based on temporally-continuous images obtained by an image sensor and a detection result of a second detection unit that detects motion of the imaging apparatus, a second calculation unit configured to calculate angular acceleration of the object to the imaging apparatus, based on a plurality of angular velocities calculated by the first calculation unit, and a correction unit configured to move a correction component based on the angular velocity of the object to the imaging apparatus during exposure by the image sensor, and to correct image blur of the object.

Abstract: A ranging device comprising a light source unit that emits a pulsed light; an optical scanning unit that scans a predetermined region with the pulsed light and has an intersection point where a path of the pulsed light intersects when viewing a virtual surface inside the predetermined region; a ranging unit that receives a reflected light from an object irradiated with the pulsed light to measure a distance to the object; and a control unit that controls an emission of the pulsed light to the intersection point based on a predetermined condition on the reflected light.

Abstract: Provided is an optical device capable of suppressing variations in the range for scanning light. This optical device comprises: a light source that emits a laser beam; a MEMS mirror that scans the laser beam toward a predetermined range; and a diffraction grating that guides the laser beam to the MEMS mirror by guiding the laser beam in a direction corresponding to the wavelength thereof. The optical device also comprises an MEMS control unit that performs control such that, by employing a change in the optical path of the laser beam caused through the diffraction grating by a change in the wavelength of the laser beam, variations in the scanning range of the laser beam by the MEMS mirror are suppressed.

Abstract: An imaging apparatus includes a first calculation unit configured to calculate angular velocity of an object to the imaging apparatus, based on a detection result of a first detection unit that detects a motion vector of the object based on temporally-continuous images obtained by an image sensor and a detection result of a second detection unit that detects motion of the imaging apparatus, a second calculation unit configured to calculate angular acceleration of the object to the imaging apparatus, based on a plurality of angular velocities calculated by the first calculation unit, and a correction unit configured to move a correction component based on the angular velocity of the object to the imaging apparatus during exposure by the image sensor, and to correct image blur of the object.

Abstract: A display control apparatus acquires focusing state information indicating a focusing state of a specific region having a different height-width proportion in a captured image, performs control so as to display, together with the captured image, a first display element indicating the specific region and a second display element indicating the focusing state on a display unit, detects an attitude of the display control apparatus, and performs control so as to rotate and display the second display element without rotating the first display element if the attitude of the display control apparatus has been changed from a first attitude to a second attitude by 90 degrees.

Abstract: The virtual image generation device which visualizes images formed by an image forming unit as virtual images includes: a first optical element and a second optical element arranged opposite to each other along a travelling direction of an image light corresponding to the images. The first optical element and the second optical element have a characteristic of reflecting the light having a wavelength corresponding to the image light in accordance with an incident angle of the light and transmitting the light having the wavelength other than the wavelength corresponding to the image light, and give a predetermined optical effect only to the image light.

Abstract: A display control apparatus acquires focusing state information indicating a focusing state of a specific region having a different height-width proportion in a captured image, performs control so as to display, together with the captured image, a first display element indicating the specific region and a second display element indicating the focusing state on a display unit, detects an attitude of the display control apparatus, and performs control so as to rotate and display the second display element without rotating the first display element if the attitude of the display control apparatus has been changed from a first attitude to a second attitude by 90 degrees.

Abstract: The virtual image generation device which visualizes images formed by an image forming unit as virtual images includes: a first optical element and a second optical element arranged opposite to each other along a travelling direction of an image light corresponding to the images. The first optical element and the second optical element have a characteristic of reflecting the light having a wavelength corresponding to the image light in accordance with an incident angle of the light and transmitting the light having the wavelength other than the wavelength corresponding to the image light, and give a predetermined optical effect only to the image light.

Abstract: The image display device includes an output unit which outputs an image information light including image information; and a hologram element on which the image information light is incident, and projects the image information light via the hologram element on a retina to make a user visually recognize an image. The hologram element includes a first hologram area and a second hologram area. A first image projected on the retina by a first image information light of the image information light via the first hologram area and a second image projected on the retina by a second image information light of the image information light via the second hologram area are different images.

Abstract: A multilayer optical recording medium in which, as a recording layer is located farther from a surface of incidence of a light beam for reading, the amount of light that reaches the surface of incidence after being reflected off the recording layer is smaller.