THREE-DIMENSIONAL DISPLAY ARTICLE AND PRODUCTION METHOD THEREOF

WIPO Patent Application WO/1996/030807

A1

A method of producing a three-dimensional cubic display article by using a diffractive sheet material S corresponding to a small-lens array S, wherein parallel rays of light incident on the sheet material are converged at a plurality of points on its rear surface. The method comprises the first step of approximating the surface of an article P, which is desired to be displayed, by a set of profile points P1 to Pn, and calculating each diffraction position Q11 to Qnm on the rear surface of the sheet material while assuming a beam of light is emitted from each of these profile points to the sheet material; and the second step of directly recording the color gradation corresponding to each profile point to each position of the rear surface of the sheet material calculated by the first step. Beautiful three-dimensional display can be accomplished within a short time without using exposure equipment, development equipment and a light source for reproduction.

SUZUKI TORU (JP)
WAKAI HIDEYUKI (JP)
ANDO MANABU (JP)
MIZUKAMI HIROYUKI (JP)

PCT/JP1996/000745

October 03, 1996

March 22, 1996

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KOMATSU MFG CO LTD (JP)
SUZUKI TORU (JP)
WAKAI HIDEYUKI (JP)
ANDO MANABU (JP)
MIZUKAMI HIROYUKI (JP)

G02B30/00; G03B35/08; G03B35/24; G03H1/08; G09F9/00; (IPC1-7): G03B35/08; G03B35/18; G03H1/08

JPH0627552A	1994-02-04
JPH0635234B2	1994-05-11
JPH0667591A	1994-03-11
JPH0682612A	1994-03-25
JPS475742A
JPS5220981U	1977-02-15

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