Abstract: An illuminating apparatus is capable of correcting color discrepancies of a color positive film. The color positive film can be an advertising signboard displaying body or as a medical diagnosis displaying body displaying in a same tone of color as the original object. The illuminating apparatus is constructed so that a color positive film made as an advertising signboard displaying body, etc. is set on a rear surface of a transparent plate disposed on a front opening portion of a box. A fluorescent plate formed by blending powder fluorescent materials emitting blue, green and red lights with acryl resin is placed on the rear side of the transparent plate. At least one ultraviolet lamp and at least one reflecting plate are arranged further behind the fluorescent plate.

Abstract: An LED lamp string is provided wherein the lamp base and socket have mutually engaging positioning devices to achieve polarization of the LED lamp with respect to the socket. Terminals of different sizes are installed into different sized grooves in the socket to polarize the electrical wires with respect to the socket.