Lighting element including light emitting diodes, microprism sheet, reflector, and diffusing agent
First Claim
1. A lighting element comprising a microprism sheet including a plurality of grooves having a v-shaped cross-section, a plurality of discrete light sources positioned in each of at least two of said grooves, and a reflective structure for reflecting light from the discrete light sources back towards said microprism sheet.
2 Assignments
0 Petitions
Accused Products
Abstract
A lighting element in which a plurality of point sources are in the form of LEDs situated between a microprism sheet and a reflective backing arrangement, the microprism sheet being of the type having a plurality of v-shaped grooves. The microprism sheet exhibits a diffusion effect, and the LEDs are situated in the grooves so that light from the LEDs that is directly incident on walls of the grooves, and light that is reflected by the backing, is combined by refraction and diffused to provide an even lighting effect. The lighting element may be made of flexible materials so that they can be formed into tubular lighting elements, or made into flat or curved panels.
168 Citations
10 Claims
- 1. A lighting element comprising a microprism sheet including a plurality of grooves having a v-shaped cross-section, a plurality of discrete light sources positioned in each of at least two of said grooves, and a reflective structure for reflecting light from the discrete light sources back towards said microprism sheet.
Specification