| 摘要 |
In the known transmission-rainbow holograms, the spectral colours can be seen over the whole surface and monochromatically only in a narrowly limited distance range. By virtue of the common geometric fixed points: hologram points (5), master positions (13, 14), reference (15) and reconstruction-light positions (21), the new method and the device for the recording (2), reconstruction (4) and illumination geometry (6) in the geometric reference frame (2, 4, 6) permit the subject to be seen in the spectral colours (81) over the whole surface and monochromatically at any desired distance (92) from the hologram (1). In order to see the subjects (55) of the template (mask) (35) in spectral colours over the whole surface and monochromatically at any distance (92), the spectral light (81) for identical wavelengths (8) is mutually parallel (9) for each point (5) of the hologram (1) and the focal point (19) of the point-light luminaire (18) of the illumination geometry (6) is at the focal point (21) of the illumination beams (17) of the reconstruction geometry (4) and at the focal point (15) of the reference-light beams (17) of the recording geometry (2). The transmission-rainbow hologram (1) shows, for the observer (53), spectral monochromatic subjects (55) on the entire hologram surface (25) at any distance (92). <IMAGE>
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