Sinusoidal structured light hologram-recording device
The utility model relates to a sinusoidal structured light hologram-recording device, and aims at solving a problem that the prior art is not suitable for the photographing of the hologram of a large view field. The device consists of a laser (1), a light beam shaping system (2), a rectangular optic...
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Zusammenfassung: | The utility model relates to a sinusoidal structured light hologram-recording device, and aims at solving a problem that the prior art is not suitable for the photographing of the hologram of a large view field. The device consists of a laser (1), a light beam shaping system (2), a rectangular optical grating (3), a monochrome Fourier transform lens (4), a spectrum selector (5), a wave plate (6), a monochrome variable multiplying power lens (7), and a high-speed vibrating lens (9) with an output light beam corresponding to a photographed object (10), wherein the laser (1), the light beam shaping system (2), the rectangular optical grating (3), the monochrome Fourier transform lens (4), the spectrum selector (5), the wave plate (6), the monochrome variable multiplying power lens (7) and the high-speed vibrating lens (9) are sequentially arranged on a precise lead screw (8-1) and a precise guide rail (8-2), and are disposed in a protection housing (13) with an optical window. A telecentric lens connected with a computer (12) and a high-speed CCD or a receiving optical path of a holographic plate (11) are corresponding to the photographed object (10). The device is advantageous in that the device improves the contrast ratio of high-spatial-frequency sinusoidal structured light, effectively reduces the wave aberration, is convenient to correct an image field, is suitable for the continuous output of sinusoidal structured light photographed by a large-view-field hologram. |
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