| 摘要 |
PURPOSE:To prevent a trouble in the point of operation so as to improve reliability of action of an equipment by arranging a light projecting/receiving part of a reflecting photosensor in a manner wherein a light projecting/receiving surface is faced diagonally to the lower of a front surface in an external contour front surface part tilt surface of a lighting device main unit. CONSTITUTION:A reflecting photosensor is constituted by integrally juxtaposing a projector for transmitting a photosignal and a light receiver for receiving a reflected wave from an object, and a light projecting/receiving part 19 of the reflecting photosensor is arranged so that a light projecting/receiving surface 19' is directed diagonally below the front in an external contour front part tilt surface of a lighting device 12. Accordingly, misoperation by reflecting the photosignal from the projector by a top board and an unconsciously placed tableware and misoperation by incident light from a lighting auxiliary window 29 are eliminated. In this way, a trouble by an influence of disturbance light is eliminated. |
