LED INDIGATOR

摘要

The present invention relates to an LED indicator. The LED indicator uses an LED as a light source and diffuses light emitted from a light emitting device which is made of LED and is operated as a point light source to the light emitted by multiple point light source using a retro-reflection sheet. The retro-reflection sheet is operated with a retro-reflection principle of light. Protrusions of a micro-prism structure having translucency are formed on the retro-reflection sheet. The LED indicator forms reflection opening units of a cone shape to form a light emission path of the light emitting device which uses the LED as the light source in a printed circuit board. The LED indicator comprises a reflection body which covers and protects the printed circuit board. One retro-reflection sheet is bonded to a body protrusion unit which is formed along the border of an upper surface of the reflection body while the retro-reflection sheet covers the entire reflection opening units formed on the reflection body, or one retro-reflection sheet is bonded to the body protrusion unit which is formed along the border of a partial area of an upper surface surrounding the partial reflection opening units which are selected among the entire upper surface of the reflection body while the retro-reflection sheet covers one or more selected reflection openings. The present invention covers the entire or partial selected reflection opening units formed on the reflection body using one retro-reflection sheet in which the protrusions of the micro-prism structure are formed. Therefore and as in the past, there is no need to consume molding costs and injection molding costs through the manufacture of a mold which forms a protrusion in every opening unit. As in the past, there is no need to consume personnel expenses caused by an assembling work which adds a light diffusion sheet in every opening unit one by one.