| 摘要 |
A signboard including a light sensor is provided to improve convenience of a user by turning on and off a light by oneself through the light sensor automatically detecting the brightness of a circumference. A signboard including a light sensor(200) is composed of a body(100) having an indent unit(101) and a hanging flange unit. A controller(150) and an AC inverter(160) are installed in the center of the indent unit. The light sensor is placed at a peripheral wall of the body to send a light sensing signal to the controller. A light guide plate(400) has a cold cathode fluorescent lamp(410) and a light blocking paper(420). The cold cathode fluorescent lamp is turned on and off according to an operation signal of the controller and the AC inverter by being installed on the peripheral wall. The light guide plate is taped with the light blocking paper in all directions. A reflection plate(300) is installed between the light guide plate and the body to reflect the light forward. An image plate(500) is installed at a front surface. A half mirror(600) is installed at the front surface of the image plate to display the contents of the image plate according to the illumination of the light guide plate.
|
