Patent ID: 6456012
Filing Date: 2002-09-24
Classification: H04N

Abstract:
A projector, comprising:a light source device having a lamp information carrier circuit board including a lamp information carrier element that determines use and nonuse of a light source; a lamp information detection circuit board that detects information from the lamp information carrier circuit board, the lamp information carrier circuit board and the lamp information detection circuit board being stacked so that the lamp information detection circuit board does not overlap the lamp information carrier element of the lamp information carrier circuit board; and an urging device, the lamp information carrier circuit board and the lamp information detection circuit board being electrically connected via the urging device, the urging device comprising: a fixed part fixed to one of the lamp information carrier circuit board and the lamp information detection circuit board; and a contacting part having a contacting surface urged toward one of the lamp information carrier circuit board and the lamp information detection circuit board which is not provided with the fixed part and contacting one of the lamp information carrier circuit board and the lamp information detection circuit board which is not provided with the fixed part, and the contacting part being composed of a plate spring.