| 摘要 |
PROBLEM TO BE SOLVED: To simplify structure, to attain accurate and easy observable display and to correspond also to a change of a layout in a warning control area by providing the control equipment with a compensation means for compensating a deviation between a projected image on a display window of a light source and a projecting object. SOLUTION: The relative positions of a display sheet 52 and a positioning sheet 53 individually stuck to a window plate 51 and foaming resin 55 coincide with each other on design by utilizing positioning marks, small holes, contour shapes, or the like. When a sensor in a kitchen on the 2nd floor senses the smoke of a fire, a red LED 54 arranged on the back of a section number 52b is turned on, a part printed on a display sheet 52 is irradiated with projected light as a spot and its projected image is projected from the back to the window plate 51. Although a relative deviation is practically generated between the projected image of the LED 54 and the section number 52b due to the dimensional errors of respective members, assembling backlash or the like, the LED 54 is surrounded by a gap in a shielding cylinder 58, so that the relative deviation between the projected image and the section number 52b is compensated within the gap range.
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