Scanning light field camera and display
OwnerPaul Lapstuninventor
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Abstract
The present invention provides a light field camera and display device (300) comprising an array of light field camera and display elements (310), each element (310) comprising: a scanner (504, 506) for scanning an input beam (600) and an output beam (500) across a two-dimensional angular field; an input focus modulator (612) for modulating the focus of the input beam (600) over time; a radiance sensor (604) for sensing the radiance of the input beam (600) over time; a radiance sampler (606) for sampling the radiance of the input beam (600) at discrete times; a beam generator (522) for generating the output beam (500); a radiance modulator (524) for modulating the radiance of the output beam (500) over time; and an output focus modulator (530) for modulating the focus of the output beam (500) over time.
Claims20
A light field camera and display device comprising an array of light field camera and display elements, each element comprising:
- (a) a scanner for scanning an input beam and an output beam across a two-dimensional angular field;
- (b) an input focus modulator for modulating the focus of the input beam over time;
- (c) a radiance sensor for sensing the radiance of the input beam over time;
- (d) a radiance sampler for sampling the radiance of the input beam at discrete times;
- (e) a beam generator for generating the output beam;
- (f) a radiance modulator for modulating the radiance of the output beam over time;
- and
- (g) an output focus modulator for modulating the focus of the output beam over time.
A method for capturing an input light field and displaying an output light field, the method comprising, for each of a set of positions in an array, the steps of:
- (a) scanning an input beam and an output beam across a two-dimensional angular field;
- (b) modulating the focus of the input beam over time;
- (c) sensing the radiance of the input beam over time;
- (d) sampling the radiance of the input beam at discrete times;
- (e) generating the output beam;
- (f) modulating the radiance of the output beam over time;
- and
- (g) modulating the focus of the output beam over time.
Dependencies are inferred from the claim text.