Abstract: Provided herein is a photocatalytic device that is easy to maintain. A photocatalytic device is provided that includes a cabinet, a photocatalytic unit disposed inside the cabinet and including a photocatalyst, a light configured to provide light to the photocatalyst, and a fan configured to send airflow to a surface of the photocatalyst. The photocatalytic unit is configured to be detachable from the cabinet.

Abstract: Provided herein is a sterilization device 100 that includes, a cylindrical case 110 having an air outlet 112 on the top and an air inlet 111 on the side, a fan 140 arranged below the air outlet 112 in the case 110 for sending air to the air outlet 112, and a filter 121 arranged below the fan 140 in the case 110.

Abstract: A wall attachment system is provided that includes an object to be mounted, and an attachment unit for attaching the object to be mounted to a wall surface. The object to be mounted has a back surface installed with a metal. The attachment unit has a front surface installed with a magnet. The wall attachment system is configured so that the metal and the magnet contact each other in response to the object to be mounted being set in position for installation on the attachment unit.

Abstract: A wall attachment system is provided that includes an object to be mounted, and an attachment unit for attaching the object to be mounted to a wall surface. The object to be mounted has a back surface installed with a metal. The attachment unit has a front surface installed with a magnet. The wall attachment system is configured so that the metal and the magnet contact each other in response to the object to be mounted being set in position for installation on the attachment unit.

Abstract: Provided herein is a photocatalytic device that is easy to maintain. A photocatalytic device is provided that includes a cabinet, a photocatalytic unit disposed inside the cabinet and including a photocatalyst, a light configured to provide light to the photocatalyst, and a fan configured to send airflow to a surface of the photocatalyst. The photocatalytic unit is configured to be detachable from the cabinet.

Abstract: An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized.

Abstract: A planar light-emitting illumination device includes: a light-emitting unit (41) that includes: a mounting substrate (41b) on which a light-emitting semiconductor element (41a) is mounted; and an input terminal (61a) conductive to the light-emitting semiconductor element (41a); and a housing (45) that holds a plurality of the light-emitting units (41) and includes a plurality of output terminals (61b) through which power from an external power supply is supplied to the light-emitting units (41), where the light-emitting unit (41) and the housing (45) are removably fixed by a connection unit that connects the input terminal (61a) and the output terminal (61b).

Abstract: An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized.

Abstract: A handrail with an illumination function includes: a handrail main body; a decorative cover that is disposed at part of the handrail main body so as to extend along a longitudinal direction of the handrail main body and has a light transmitting property; a flatter that is disposed on an inner side with respect to the decorative cover so as to extend along the longitudinal direction of the handrail main body and reflects and diffuses light to radiate the light through a slit; and a light source that is disposed on an inner side of the flatter.

Abstract: In an LED light bulb, an LED module and a lens are disposed on a fixing stage provided to a housing. The lens has a concave portion at its top end. The concave portion forms a reflecting surface which reflects part of outgoing light from the LED module to (i) first directions perpendicular to a front emission direction of the outgoing light or (ii) second directions leaning to a cap beyond the first directions. Due to diffusion effect of an optical cover, part of the light reflected by the lens is emitted backward (toward the cap). This realizes an LED light bulb that distributes light over an entire circumference and has high output as well as high light output ratio.

Abstract: In an LED light bulb, an LED module and a lens are disposed on a fixing stage provided to a housing. The lens has a concave portion at its top end. The concave portion forms a reflecting surface which reflects part of outgoing light from the LED module to (i) first directions perpendicular to a front emission direction of the outgoing light or (ii) second directions leaning to a cap beyond the first directions. Due to diffusion effect of an optical cover, part of the light reflected by the lens is emitted backward (toward the cap). This realizes an LED light bulb that distributes light over an entire circumference and has high output as well as high light output ratio.

Abstract: A receiver apparatus 3 has a digital circuit portion 13 that converts a compressed digital signal outputted from a digital demodulating portion 12 into digital video and audio signals and a video/audio output circuit 14 that converts the digital video and audio signals outputted from the digital circuit portion 13 into analog video and audio signals. With this configuration, a video/audio processing IC for digital signal processing no longer needs to be mounted on the circuit board of a video display apparatus 4, and thus a receiver system can be realized with a video display apparatus having a simple configuration.

Abstract: A receiver apparatus 3 has a digital circuit portion 13 that converts a compressed digital signal outputted from a digital demodulating portion 12 into digital video and audio signals and a video/audio output circuit 14 that converts the digital video and audio signals outputted from the digital circuit portion 13 into analog video and audio signals. With this configuration, a video/audio processing IC for digital signal processing no longer needs to be mounted on the circuit board of a video display apparatus 4, and thus a receiver system can be realized with a video display apparatus having a simple configuration.

Abstract: A printed circuit board has a substrate formed of an insulator, a strip line provided on a front surface of the substrate, and a ground metal layer provided on a rear surface of the substrate. An opening is provided in the ground metal layer to reach the substrate. A radio wave receiving converter and an antenna device each include the printed circuit board.

Abstract: A high frequency switch device has SPDT(A), SPDT(B), and SPDT(C) switches, each having one pole and a first port and a second port, wherein the second port of the SPDT(A) is grounded via a terminating resistor and the second port of the SPDT(B) is grounded via a terminating resistor, respectively, and the first port of the SPDT(A) and the first port of the SPDT(B) are respectively connected to the first port and the second port of the SPDT(C).

Abstract: A receiver apparatus 3 has a digital circuit portion 13 that converts a compressed digital signal outputted from a digital demodulating portion 12 into digital video and audio signals and a video/audio output circuit 14 that converts the digital video and audio signals outputted from the digital circuit portion 13 into analog video and audio signals. With this configuration, a video/audio processing IC for digital signal processing no longer needs to be mounted on the circuit board of a video display apparatus 4, and thus a receiver system can be realized with a video display apparatus having a simple configuration.