Light emitting unit with reflector for uniform light emission

摘要

A light emitting unit includes a light source device and a reflector. The light source device extends in parallel with an extension direction, and is capable of providing a light beam. The reflector is configured under the light source device and extends in parallel with the extension direction. The reflector has a first protrusion and a pair of second protrusions located on two sides of the first protrusion, the first protrusion has a peak portion and two trough portions, the second protrusion has a peak portion and a trough portion, and the two trough portions of the first protrusion are respectively connected to the trough portions of the two second protrusions to provide a fluctuant reflection surface, and a height of a cross section contour of the pair of the second protrusions in parallel with the extension direction is decreased from a center to two ends of the reflector.

主权项

1. A light emitting unit, comprising:
a light source device, extending in parallel with an extension direction, and capable of providing a light beam; and a reflector, configured under the light source device and extending in parallel with the extension direction, wherein the reflector has a first protrusion and a pair of second protrusions located on two sides of the first protrusion, the first protrusion has a peak portion and two trough portions located on two sides of the peak portion, each of the second protrusions have a peak portion and a trough portion, and the two trough portions of the first protrusion are respectively connected to the trough portions of the two second protrusions to provide a fluctuant reflection surface, and the height of the cross section contours of each of the second protrusions in parallel with the extension direction is decreased in the entire section from a centre to two ends of the reflector.