Abstract: In order to achieve the above object, an image display apparatus according to an embodiment of the present technology includes a light source section and one or more optical components. The one or more optical components include an optical surface for dividing the light emitted from the light source into a plurality of light beams to be converged and a reflective surface for reflecting the plurality of light beams converged by the optical surface, and emit the plurality of light beams reflected by the reflective surface from the optical surface.

Abstract: A lens apparatus in which first and second operation units are replaceable includes a member movable by an operation of the first or second operation unit, a detector configured to detect a position of the member, a memory configured to store first detected values output from the detector for a plurality of indices of the first operation unit, and second detected values output from the detector for a plurality of indices of the second operation unit, an acquiring unit configured to acquire a characteristic of the lens apparatus based on the position of the member, and a specifying unit configured to specify the first or second operation unit to be used. The acquiring unit acquires the characteristic based on the first detected values in a case where the first operation unit is specified, and otherwise based on the second detected values.

Abstract: An accessory apparatus including an optical member, and configured to be detachably attached to an image pickup apparatus, includes a communication unit. The communication unit is configured to communicate with the image pickup apparatus with a first communication for the image pickup apparatus to perform notification to the accessory apparatus that the image pickup apparatus communicates with the accessory apparatus, and a second communication and a third communication to be used for performing communication between the image pickup apparatus and the accessory apparatus that has received the notification. A time interval between two request signals for requesting standby of communication between the image pickup apparatus and the accessory apparatus with the third communication is longer than that with the second communication.

Abstract: An object of the present invention is to provide a display apparatus capable of suppressing generation of light (unnecessary light) other than light (image display light) to a wearer and suppressing manufacturing costs of the display apparatus (image display apparatus). The present invention provides a display apparatus (100) including an image display element (41), a collimating optical system (51) that collimates light emitted from the image display element (41), a light guide plate (31) on which light emitted from the collimating optical system (51) is incident and that totally reflects and guides the light being incident, a first optical element (11) that is disposed on the light guide plate (31) and introduces the light being incident into the light guide plate (31), and multiple second optical elements (21) that are disposed on the light guide plate (31) and emit light propagated by total reflection in the light guide plate (31) to outside of the light guide plate (31).

Abstract: An accessory attachable to and detachable from an image pickup apparatus includes a memory configured to store first data having a first characteristic for correcting image data obtained by the image pickup apparatus, and second data having a second characteristic different from the first characteristic for correcting image data obtained by the image pickup apparatus, and a communication unit configured to transmit first information based on the first data and second information based on the second data to an external apparatus.

Abstract: An accessory apparatus including an optical member, and configured to be detachably attached to an image pickup apparatus, includes a communication unit. The communication unit is configured to communicate with the image pickup apparatus with a first communication for the image pickup apparatus to perform notification to the accessory apparatus that the image pickup apparatus communicates with the accessory apparatus, and a second communication and a third communication to be used for performing communication between the image pickup apparatus and the accessory apparatus that has received the notification. A time interval between two request signals for requesting standby of communication between the image pickup apparatus and the accessory apparatus with the third communication is longer than that with the second communication.

Abstract: There is provided an image display apparatus and a head-mounted display that includes the image display apparatus, the image display apparatus being capable of presenting an image having a large field of view to a user. The image display apparatus includes a lens portion and an enlargement portion. Pieces of light each corresponding to a corresponding one of a plurality of identical images enter the lens portion. The pieces of light passing through the lens portion enter the enlargement portion.

Abstract: An image display apparatus of the present technology includes a first lens unit (70), a second lens unit (80), and a microlens array (50). The second lens unit (80) eccentrically faces the first lens unit (70). The microlens array (50) is disposed at a first conjugate position (K1) based on the first and second lens units (70, 80).

Abstract: An image display device in which any difference in angle of view is eliminated. The image display device includes: an optical engine that emits image display light; and a light guide optical system that guides the image display light to an eye. In the image display device, the light guide optical system includes: a light adjustment unit that adjusts the image display light; and at least one light guide plate that causes the adjusted image display light to travel in the at least one light guide plate, and guides the image display light to the eye. The at least one light guide plate includes: an entrance portion that causes the adjusted image display light to travel into the light guide plate; and an exit portion that causes the image display light having traveled in the light guide plate to exit the light guide plate and reach the eye.

Abstract: In order to achieve the above object, an image display apparatus according to an embodiment of the present technology includes a light source section and one or more optical components. The one or more optical components include an optical surface for dividing the light emitted from the light source into a plurality of light beams to be converged and a reflective surface for reflecting the plurality of light beams converged by the optical surface, and emit the plurality of light beams reflected by the reflective surface from the optical surface.

Abstract: An accessory apparatus attachable to and detachable from a camera, the accessory apparatus includes an accessory controller configured to control a communication with the camera using a notification channel used to transmit a signal between the camera and the accessory apparatus and a data communication channel used for a data communication between the camera and the accessory apparatus. The accessory controller switches between a first communication method used for communications between the camera and all accessory apparatuses connected to the camera and a second communication method used for an individual communication with the camera. The accessory controller switches, in the second communication method, from the second communication method to the first communication method when detecting a start of the data communication in the first communication method in the communication.

Abstract: A position detector of a mover relative to a stator includes: an output unit outputting displacement signals including a first signal in a first period and a second signal in a period longer than the first period, while switching among the displacement signals, according to a change in the position of the mover; and a deriver that derives an absolute position as the position of the mover based on the displacement signals, and derives a relative position as a displacement amount with respect to a predetermined absolute position of the mover, wherein in deriving the absolute position, the signal output unit outputs the first signal, the second signals, and the first signal in this order, and the deriver derives the absolute position based on the displacement signals, in deriving the relative position, the position deriver derives the relative position based on the first signal and the second signals.

Abstract: A terminal according to the present invention includes: a display which detects an operation on a display surface, and deforms part of the display surface; and a controller which carries out at least one of a first control in response to a drag operation of an icon displayed on the display surface so that a place in the display surface to which the icon is not allowed to move is deformed to have a shape different from that of another place and a second control in response to a swipe operation on the display surface so that an end portion of the display surface in a direction of a swipe operation is deformed to have a shape different from that of another place.

Abstract: An accessory apparatus attachable to and detachable from a camera, the accessory apparatus includes an accessory controller configured to control a communication with the camera using a notification channel used to transmit a signal between the camera and the accessory apparatus and a data communication channel used for a data communication between the camera and the accessory apparatus. The accessory controller switches between a first communication method used for communications between the camera and all accessory apparatuses connected to the camera and a second communication method used for an individual communication with the camera. The accessory controller switches, in the second communication method, from the second communication method to the first communication method when detecting a start of the data communication in the first communication method in the communication.

Abstract: A terminal according to the present invention includes: a display which detects an operation on a display surface, and deforms part of the display surface; and a controller which carries out at least one of a first control in response to a drag operation of an icon displayed on the display surface so that a place in the display surface to which the icon is not allowed to move is deformed to have a shape different from that of another place and a second control in response to a swipe operation on the display surface so that an end portion of the display surface in a direction of a swipe operation is deformed to have a shape different from that of another place.

Abstract: An operation apparatus includes: a detector capable of detecting a slide operation on a surface of the operation apparatus; a shape variator including a variable shape portion which is disposed in a partial region of the surface and whose surface shape is deformable; and a controller which controls the shape variator in such a way that the shape variable portion is formed into a first shape being the same as a surface shape of a region other than the partial region or a second shape different from the first shape. The controller controls the shape variator in such a way that the shape of the variable shape portion is formed into the first shape when the detector detects the slide operation.

Abstract: A position detector, including: a scale including a pattern array formed cyclically in a movement direction, the scale being provided to a fixed member or a movable member; a detector including detection elements arranged in the movement direction, the detector being provided to the other; a generating unit that selectively generates, from signals received from the detection elements, a first signal obtained by a first combination of the signals or a second signal obtained by a second combination of the signals; an output unit that outputs the first or second signal received from the generating unit; and a switcher that switches over between the first and second signals as a signal to be generated, wherein the first signal changes within a first range, corresponding to a relative position; and the second signal does not change beyond a second range smaller than the first range, corresponding to the relative position.

Abstract: A position detector of a mover relative to a stator includes: an output unit outputting displacement signals including a first signal in a first period and a second signal in a period longer than the first period, while switching among the displacement signals, according to a change in the position of the mover; and a deriver that derives an absolute position as the position of the mover based on the displacement signals, and derives a relative position as a displacement amount with respect to a predetermined absolute position of the mover, wherein in deriving the absolute position, the signal output unit outputs the first signal, the second signals, and the first signal in this order, and the deriver derives the absolute position based on the displacement signals, in deriving the relative position, the position deriver derives the relative position based on the first signal and the second signals.

Abstract: A travel control device includes ultrasonic obstacle detection sensors detecting an obstacle entering a rear side of a vehicle and a distance to the obstacle, and an image obstacle detection unit detecting the obstacle entering the rear side of the vehicle by using an image of the rear side. If a distance to the obstacle detected by the sensors is equal to or less than an activation threshold for warning, the travel control device issues a warning, and sets the activation threshold larger as the vehicle speed of the vehicle becomes high. If the vehicle is detected preparing to move rearward and the image obstacle detection unit detects the obstacle, the travel control device sets the activation threshold to a constant value regardless of the vehicle speed.

Abstract: A terminal according to the present invention includes: a display which detects an operation on a display surface, and deforms part of the display surface; and a controller which carries out at least one of a first control in response to a drag operation of an icon displayed on the display surface so that a place in the display surface to which the icon is not allowed to move is deformed to have a shape different from that of another place and a second control in response to a swipe operation on the display surface so that an end portion of the display surface in a direction of a swipe operation is deformed to have a shape different from that of another place.