SIMPLE MECHANISM AND USAGE OF COMPACT ILLUMINATING DEVICE WHICH PROJECTS AS ACTUAL IMAGES SIGNATURES OF CHARACTERS OR PATTERNS ON BUILDINGS OR GROUND

摘要

PROBLEM TO BE SOLVED: To provide an illuminating device that can reduce labor and cost taken for setting, changing, and removing display contents and can project actual images for easy recognition even in dark places, and the usage of the device.;SOLUTION: The illuminating device includes an LED chip 5 as a light source combined with convex lens systems 6, 8 and with a film 7 with characters or patterns described. Changing the contents of actual images to be projected is possible by replacing the film 7 alone, and the distance between the light source and the film 7 can be changed by sliding in the device. The distortions of actual images by employing a short-focus lens system can be corrected by applying a reverse distortion to patterns to be described in the film in advance.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2017,JPO&INPIT