US 7,321,343 B2
Method for auto-stereoscopic image display with a wavelength filter array
Markus Klippstein, Jena-Muenchenroda (Germany); and Ingo Relke, Jena (Germany)
Assigned to X3D Technologies GmbH, Jena (Germany)
Appl. No. 10/482,440
PCT Filed Sep. 05, 2002, PCT No. PCT/EP02/09927
§ 371(c)(1), (2), (4) Date Jul. 16, 2004,
PCT Pub. No. WO03/024122, PCT Pub. Date Mar. 20, 2003.
Claims priority of application No. 101 45 133 (DE), filed on Sep. 06, 2001.
Prior Publication US 2004/0245440 A1, Dec. 09, 2004
Int. Cl. G09G 5/00 (2006.01)
U.S. Cl. 345—8  [345/3.1; 345/207; 345/211; 345/619] 12 Claims
OG exemplary drawing
 
1. A method of spatial visualization of a scene or an object on the basis of several views (Ac) of the scene or object, in which
the views (Ac) are decomposed, on matrices (Rc) with columns (k) and rows (l), into many bits of partial information (ackl) characterized by their wavelengths, with c=1, . . . ,n, where (n) designates the total number of views,
the bits of partial information (ackl) are displayed in optically visible form by image rendering elements (αij) arranged in a matrix of columns (i) and rows (j),
making neighboring image rendering elements (αij) emit light of different wavelengths (λ) or of different wavelength ranges (Δλ),
propagation directions for the emitted light are defined by an array of many individual wavelength filters (βpq) arranged in columns (p) and rows (q), which are transparent to different wavelengths (λ) or different wavelength ranges (Δλ) and which are arranged in front of or behind the matrix of image rendering elements (αij), so that every one image rendering element (αij) corresponds with several allocated wavelength filters (βpq) or every one wavelength filter (βpq) corresponds with several allocated image rendering elements (αij) in such a way that each straight line connecting the centroid of the cross-section area of a visible segment of the image rendering element (αij) and the centroid of the cross-section area of a visible segment of the wavelength filter (βpq) corresponds to a propagation direction, so that an observer from every viewing position will see predominantly bits of partial information from a first selection of views (Ac) with one eye, and predominantly bits of partial information from a second selection of views (Ac) with the other eye, wherein
at least one image rendering element (αij) is allocated bits of partial information (ackl) from at least two different views (Ac) simultaneously,
this allocation being made in such a way that the wavelength of the partial information (ackl) always equals the wavelength (λ), or lies in the wavelength range (Δλ), of the light emitted by the allocated image rendering element (αij).