OMNIDIRECTIONAL LIGHT RECEIVING DEVICE

摘要

PURPOSE:To increase the arrival range of a remote control signal for a wireless remote controller employing an infrared ray for a signal ray and using the omnidirectional light receiving device. CONSTITUTION:In the omnidirectional light receiving device having an omnidirectional prism 20 in which an inverse cone shaped recessed part is provided to an upper face of a pillar and a conical face of a cone acts like a reflecting face to a ray made incident from a side face of the pillar and a light receiving element mounted to a lower end of the omnidirectional prism 20, a roof plate 40 larger than the upper face of the omnidirectional prism 20 is placed to the said upper face.