Direction active projection

摘要

A directionally active projection device is described that includes a planar display providing a pattern of information. The planar display includes regions of light transparency and regions for blocking light transmittance. The directionally active projection device also includes a lens arranged adjacent to the planar display, and a collection of light sources arranged as an array in a focal plane of the lens. Also described are methods of controlling directionally active projection devices.

主权项

1. A directionally active projection device comprising:
a planar display means for displaying a pattern of information, wherein the planar means includes regions of transparency, wherein the planar display means comprises a planar transparency including regions of light transmittance and regions for blocking light transmittance; wherein the planar display means comprises a variable spatial light modulator; a focusing means arranged adjacent to the planar display means; and a plurality of light source means arranged as an array in a focal plane of the focusing means, wherein the plurality of light source means are both on an optical axis of the focusing means and offset from the optical axis.