LED light source

摘要

An LED light source for a focussed lamp, comprises a LED chip in a well having a rectangular floor. The lower portion of the well has steep walls and accommodates the part of the chip that does not emit light. The upper part of the well has four side-reflectors extending parallel to the sides of the chip and four corner-reflectors. The well may be formed by coining. The light source provides more uniform light than do previous arrangements having focussing lenses and the vertical viewing angle of the lamp is maintained throughout the whole of the horizontal viewing range of the lamp.