US 12,571,506 B2 · Multi-function light pipe

Abstract

This disclosure describes a light pipe apparatus which comprises several elements: a first light source, at least one optical sheet positioned above the first light source, a first mask comprising inverted images positioned above the optical sheet, a second light source, at least one clear diffusion sheet, a second mask comprising a slot positioned above the second mask, and a light pipe. Light in the form of an image from the first mask illuminates and passes through the clear diffusion sheet. An edge of the clear diffusion sheet is aligned with the second light source. The second mask is aligned with the faces of the clear diffusion sheet and positioned between the clear diffusion sheet and the light pipe. Each of the first light source and the second light source may be monochromatic or vary in color. Parameters such as timing, intensity, pulsing, oscillation, etc. may be independently controlled.

Claims15

Dependent claims

A multi-function light pipe apparatus, comprising:

a first light source;
at least one optical sheet positioned above the first light source;
a first mask positioned above the at least one optical sheet;
a clear diffusion sheet positioned above the first mask and aligned coplanar with the first mask;
a second light source configured to illuminate an edge of the clear diffusion sheet such that the clear diffusion sheet is edge lit by the second light source;
a second mask positioned above and coplanar with the clear diffusion sheet, wherein the second mask comprises a longitudinal slot for light to pass through;
and
a light pipe positioned above the second mask and aligned with the longitudinal slot such that light passing through the longitudinal slot impinges on at least a portion of the light pipe for projection from the light pipe.

5 more elements

Dependencies are inferred from the claim text.

Multi-function light pipe

Life of this patent

Multi-function light pipe

Life of this patent

Abstract

Claims15