| 摘要 |
PURPOSE:To obtain a wide angle of field and the high luminous intensity as a visible-rays LED unit by a method wherein a non-lens-shaped or a flat part molded as one body by using a material identical to that of a lens-shaped part is formed at the front or on the top surface of the lens-shaped part. CONSTITUTION:An infrared LED pellet 2 is mounted on a cathode-side lead frame 1; this assembly is molded by using a resin 5 having a filter effect which transmits only infrared rays but cuts a visible-rays. In addition, a resin part is constituted of a lens-shaped part 6 and a flat part 7; they are molded as one body. In addition, a resin-unfilled part 8 exists between the lens-shaped part 6 and the flat part 7. Accordingly, a beam from the pellet 2 is converged efficiently at the front of the lens-shaped part 6, passes through the unfilled part 8 and is taken out to the outside at the flat part 7 without being influenced hardly. In addition, a light-emitting part of a set of a good decorative property can be made of only an infrared LED without using components attached outside. |
