Abstract: A wireless communication device includes a processor and a memory configured to store a program for establishing a wireless connection with a terminal device. The processor establishes, in accordance with the program stored in the memory, the wireless connection with the terminal device upon request for the wireless connection from one of the wireless communication device and the terminal device. Upon establishment of the wireless connection with the terminal device, the processor queries the terminal device with which the wireless connection is established to check a state of an application program for causing the wireless communication device to execute a specific function. The processor maintains or cuts off the wireless connection with the terminal device based on a state of a response of the terminal device with respect to the query.

Abstract: A present giving method performed by a processor includes the following. That is, selecting a print design that is given to a second user who is a receiver of the print design as a present according to operation by a first user who is a giver of the print design; and setting a hiding flag in design information of the print design according to the operation by the first user, wherein when the hiding flag is set, the selected print design is not displayed on a display in a state that the print design is visible when printing is performed on a print target included in the second user.

Abstract: A distance measurement apparatus includes a light source, a scanning mirror, and a light receiving optical system. The light source emits a light beam. The scanning mirror scans the light beam. The light receiving optical system receives a return light. The light receiving optical system includes a focusing optical system, a light receiving element, and an aperture located between the focusing optical system and the light receiving element. The aperture is disposed on a focal plane of the focusing optical system. A viewing angle of the light receiving optical system is smaller than a divergence angle of the light beam.

Abstract: A present giving method performed by a processor includes the following. That is, selecting a print design that is given to a second user who is a receiver of the print design as a present according to operation by a first user who is a giver of the print design; and setting a hiding flag in design information of the print design according to the operation by the first user, wherein when the hiding flag is set, the selected print design is not displayed on a display in a state that the print design is visible when printing is performed on a print target included in the second user.

Abstract: An image capturing device includes a housing and a processor. The processor is configured to determine whether a state of movement of the housing relative to an observation target is either a first state or a second state, and perform a control based on the state of the movement of the housing to cause change in electric energy for drive of the image capturing device.

Abstract: Polymer fine particles having a number average particle diameter of 50 to 450 nm and a CV value of particle diameter on a number basis of 5% or less, or polymer fine particles having a structural color development property when arranged. An acid value of the polymer fine particles is 5 to 38 mg KOH/g. An emulsion in which the polymer fine particles are dispersed in a medium mainly containing water. In addition, a structure in which the polymer fine particles are arranged and develop color.

Abstract: An image capturing device includes a housing and a processor. The processor is configured to determine whether a state of movement of the housing relative to an observation target is either a first state or a second state, and perform a control based on the state of the movement of the housing to cause change in electric energy for drive of the image capturing device.

Abstract: An image capturing device includes a housing and a processor. The processor is configured to determine whether a state of movement of the housing relative to an observation target is either a first state or a second state, and perform a control based on the state of the movement of the housing to cause change in electric energy for drive of the image capturing device.

Abstract: A distance measuring apparatus to measure a distance to an object includes: a plurality of light sources to emit a first light and a second light; a mirror; and a light receiving unit. When the mirror rotates about the first and third axes, an angle formed by an optical axis of the second light projected on the first plane and the second axis is larger than an angle formed by an optical axis of the first light projected on the first plane and the second axis, and an angle formed by the optical axis of the second light projected on the second plane and the second axis is larger than an angle formed by the optical axis of the first light projected on the second plane and the second axis.

Abstract: A display device used in a vehicle for displaying virtual images includes: a display including a light source to emit image light and a screen on which the image light is projected; and a controller to adjust positions at which the virtual images are displayed. Images displayed on the screen are projected as the virtual images. The virtual images include first and second virtual images displayed at different positions. The display displays, on the screen, a first adjustment image that is projected to a display area of the first virtual image and a second adjustment image that is projected to a display area of the second virtual image. The controller adjusts a position of the display area of the first virtual image and a position of the display area of the second virtual image on a basis of the first adjustment image and the second adjustment image.

Abstract: A wireless communication device includes a processor and a memory configured to store a program for establishing a wireless connection with a terminal device. The processor establishes, in accordance with the program stored in the memory, the wireless connection with the terminal device upon request for the wireless connection from one of the wireless communication device and the terminal device. Upon establishment of the wireless connection with the terminal device, the processor queries the terminal device with which the wireless connection is established to check a state of an application program for causing the wireless communication device to execute a specific function. The processor maintains or cuts off the wireless connection with the terminal device based on a state of a response of the terminal device with respect to the query.

Abstract: An image capturing device includes a housing and a processor. The processor is configured to determine whether a state of movement of the housing relative to an observation target is either a first state or a second state, and perform a control based on the state of the movement of the housing to cause change in electric energy for drive of the image capturing device.

Abstract: The application device comprises a sensor that detects movement of the application device on an application target, a camera that obtains a captured image that is an image of a surface of the application target and is captured during the movement of the application device, a head that applies ink, and a processor, wherein the processor specifies an ink application area based on the captured image of the surface of the application target that is captured by the camera in accordance with the movement that is detected by the sensor, and controls the head to apply ink to the ink application area in accordance with the movement.

Abstract: A printing device includes a printing head configured to print an image on a printing medium while moving relative to the printing medium; a detector configured to detect a relative moving amount of the printing head with respect to the printing medium for each sampling cycle; and a processor configured to perform a first control to cause the printing head to perform printing when a moving speed of the printing head based on the moving amount detected by the detector and the sampling cycle is equal to or higher than a first moving speed at which the moving amount for each the sampling cycle becomes a reference distance corresponding to a print resolution of the printing head, the printing being performed at a timing that is set in accordance with the moving speed.

Abstract: A printing apparatus comprises a printer that prints an image on a printing medium and a processor that controls printing by the printer.

Abstract: A display device used in a vehicle for displaying virtual images includes: a display including a light source to emit image light and a screen on which the image light is projected; and a controller to adjust positions at which the virtual images are displayed. Images displayed on the screen are projected as the virtual images. The virtual images include first and second virtual images displayed at different positions. The display displays, on the screen, a first adjustment image that is projected to a display area of the first virtual image and a second adjustment image that is projected to a display area of the second virtual image. The controller adjusts a position of the display area of the first virtual image and a position of the display area of the second virtual image on a basis of the first adjustment image and the second adjustment image.

Abstract: The application device comprises a sensor that detects movement of the application device on an application target, a camera that obtains a captured image that is an image of a surface of the application target and is captured during the movement of the application device, a head that applies ink, and a processor, wherein the processor specifies an ink application area based on the captured image of the surface of the application target that is captured by the camera in accordance with the movement that is detected by the sensor, and controls the head to apply ink to the ink application area in accordance with the movement.

Abstract: A printing apparatus includes: a printer that performs printing on a printing medium; and a sensor that outputs a detection signal while the printing apparatus moves relative to the printing medium. The printing apparatus determines whether the sensor is above a first surface or above a second surface of the printing medium, based on the detection signal output from the sensor, the first surface being a surface on which a moving amount of the printing apparatus with respect to the printing medium is acquired, and the second surface being a surface on which the moving amount is not acquired, and if the sensor is determined to be above the second surface, controls printing on the printing medium by the printer according to an estimated value of the moving amount with respect to the printing medium.

Abstract: A printing device includes a printing head configured to print an image on a printing medium while moving relative to the printing medium; a detector configured to detect a relative moving amount of the printing head with respect to the printing medium for each sampling cycle; and a processor configured to perform a first control to cause the printing head to perform printing when a moving speed of the printing head based on the moving amount detected by the detector and the sampling cycle is equal to or higher than a first moving speed at which the moving amount for each the sampling cycle becomes a reference distance corresponding to a print resolution of the printing head, the printing being performed at a timing that is set in accordance with the moving speed.

Abstract: A head-up display device that superimposes a plurality of virtual images different in display distance (depth perception) on each other and display the superimposed virtual images is provided with a simple configuration. A head-up display device includes a synthetic optical system and a projection optical system. The synthetic optical system superimposes and emits first image light that travels through a first optical path and second image light that travels through a second optical path having an optical path length different from an optical path length of the first optical path. The projection optical system projects, as a virtual image, the first image light and the second image light superimposed and emitted by the synthetic optical system.