The present invention provides an optical scanning control device and a retina scanning projection device provided with a structure for suppressing heat transfer to a laser module, and a heat dissipation structure for dissipating the heat of the laser module. The optical scanning control device (10) is configured to emit, as image light, a laser light in accordance with an image signal. The optical scanning control device includes: a housing (11) made of metal; a laser module (125) configured to emit laser light, which abuts the top of the base (11a) of the housing, and is arranged on one side inside the housing; a power supply unit (16) arranged inside the housing on a side opposite that of the laser module; and an electronic circuit board (12) having heat source members (IC chips 14) configured to cause the laser module to emit image light, the electronic circuit board being arranged on a side opposite the base-side of the laser module. The heat source members are arranged on a surface on a side of the electronic circuit board facing away from the laser module, and are at positions which avoid a position directly above the laser module.

A display apparatus includes a display device configured to display a video data; and a plurality of integrated speakers configured to output at least one audio signal in a low-pitched tone band and at least one audio signal in a middle and high-pitched tone band. The plurality of integrated speakers may each include: a woofer speaker configured to output a first audio signal among the at least one audio signal in the low-pitched tone band; and at least one front speaker that is adjacent to the woofer speaker and configured to output a second audio signal among the at least one audio signal in the middle and high-pitched tone band.

Control of luminance of a light-emitting unit is enabled without separately providing a device for measuring the luminance of the light-emitting unit. A posture specifying unit specifies a posture of a user-controllable object including the light-emitting unit that emits light at luminance according to drive current, the posture specified based on a posture specifying image taken by a camera, the posture specifying image including an image of the light-emitting unit. A luminance information specifying unit specifies information indicating the luminance of the light-emitting unit based on a luminance specifying image taken by the camera that takes the posture specifying image, the luminance specifying image including an image of the light-emitting unit. A drive current control unit controls the drive current of the light-emitting unit based on the specified information indicating the luminance of the light-emitting unit.

Control of luminance of a light-emitting unit is enabled without separately providing a device for measuring the luminance of the light-emitting unit. A posture specifying unit specifies a posture of a user-controllable object including the light-emitting unit that emits light at luminance according to drive current, the posture specified based on a posture specifying image taken by a camera, the posture specifying image including an image of the light-emitting unit. A luminance information specifying unit specifies information indicating the luminance of the light-emitting unit based on a luminance specifying image taken by the camera that takes the posture specifying image, the luminance specifying image including an image of the light-emitting unit. A drive current control unit controls the drive current of the light-emitting unit based on the specified information indicating the luminance of the light-emitting unit.

A security cover for an audio/video recording and communication device (A/V device) comprises a front wall includes first and second apertures. The first aperture is positioned to expose a camera of the A/V device. The second aperture is positioned to expose a button of the A/V device. The security cover further includes a set of one or more adjoining sidewalls extending from the front wall and being sloped outward from the front wall. The security cover further includes a mounting surface extending about the set of sidewalls, the mounting surface being spaced from the front wall. The security cover further includes a rigid mounting frame having a first surface for abutting a support surface and a second surface, opposite the first surface, for abutting the mounting surface. The front wall, the set of sidewalls, and the rigid mounting frame together form an interior compartment to contain the A/V device.

An audio streaming system including an audio streamer connected to an audio source, and at least one ear worn device. The audio streamer includes a first antenna with a first polarization, a second antenna with a second polarization, and a radio configured for transmitting a first audio stream signal (30) from the first antenna and a second audio stream signal (31) from the second antenna. The first audio stream signal (30) and the second audio stream signal (31) carry the same audio information and are shifted in time. At least one ear worn device is configured to receive the first audio stream signal (30) and the second audio stream signal (31), compare the signal strength of the first audio stream signal (30) and the second audio stream signal (31), and select either the first audio stream signal (30) and the second audio stream signal (31) as input for audio reception.

An image projection device includes: a light source emitting a light beam; an image input unit inputting image data; a control unit generating an image light beam based on the input image data, and controlling emission of the image light beam from the light source; a scan unit scanning the image light beam emitted from the light source; and a projection optical member illuminating a retina of an eyeball of a user with the image light beam scanned by the scan unit, and projecting an image onto the retina, wherein a diameter of the image light beam at a time when the image light beam enters a cornea of the eyeball is not smaller than 310 m and not larger than 800 m, and a user having an original visual acuity in a range of 0.04 to 1.2 has an acquired visual acuity of 0.4 or higher.

A display device includes a display module including a display panel that displays an image in a display area provided at a front, and a bezel surrounding an outer edge of the display module. The display area has a rectangular shape. The bezel includes a plurality of bezel portions having an elongated shape and disposed to correspond to respective four sides of the display area, and a joining member joining together two adjacent bezel portions of the plurality of bezel portions. The joining member is disposed in a position where the joining member overlaps the display module on a back side of the display module.

Disclosed is a display apparatus including a display module and a driving apparatus configured to deform the display module. The display module is deformed by the driving apparatus so as to be in a flat surface state, a first curved surface state in which both sides of the display module protrude forward, and a second curved surface state in which the both sides of the display module retreat backward.

Disclosed is a display apparatus including a display module and a driving apparatus configured to deform the display module. The display module is deformed by the driving apparatus so as to be in a flat surface state, a first curved surface state in which both sides of the display module protrude forward, and a second curved surface state in which the both sides of the display module retreat backward.