Light-Emitting Device With Partial Roughened Illumination Surface

摘要

In one embodiment, a light-emitting device having a reflector, an emitter and an encapsulant is disclosed. The encapsulant may have a plurality of optical structures. Each of the plurality of optical structures may be configured to attenuate light transmitting towards a first direction by re-directing towards a second direction. In another embodiment, a flashlight having a roughened area with micro-optics is disclosed. Each of the micro-optics is configured to redirect light transmitting towards a direction forming an angle relative to a longitudinal axis to a point along the longitudinal axis. In yet another embodiment, a lighting-emitting device having roughened area to reduce light along a longitudinal axis is disclosed.

主权项

1. A light-emitting device, comprising:
a reflector surface; an emitter attached on the reflector surface, the emitter being configured to emit light towards an illumination direction; an encapsulant encapsulating the emitter on the reflector surface; an illumination surface of the encapsulant being distanced away from the reflector surface; and a plurality of optical structures formed on at least a portion of the encapsulant, wherein each of the plurality of optical structures is configured to attenuate light transmitting towards a first direction by redirecting the light towards a second direction respectively.