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Laser holography, in its original "pure" form of the photographic transmission hologram, is the only technology yet created which can reproduce an object or scene with such complete realism that the reproduction is visually indistinguishable from the original, given the original lighting conditions.[citation needed] It creates a light field identical to that which emanated from the original scene, with parallax about all axes and a very wide viewing angle. The eye differentially focuses objects at different distances and subject detail is preserved down to the microscopic level. The effect is exactly like looking through a window. Unfortunately, this "pure" form requires the subject to be laser-lit and completely motionless—to within a minor fraction of the wavelength of light—during the photographic exposure, and laser light must be used to properly view the results. Most people have never seen a laser-lit transmission hologram. The types of holograms commonly encountered have seriously compromised image quality so that ordinary white light can be used for viewing, and non-holographic intermediate imaging processes are almost always resorted to, as an alternative to using powerful and hazardous pulsed lasers, when living subjects are photographed.Meskipun proses foto asli telah terbukti tidak praktis untuk penggunaan umum, kombinasi yang dihasilkan komputer hologram (CGH) dan holografik Optoelektronik menampilkan, baik di bawah perkembangan selama bertahun-tahun, memiliki potensi untuk mengubah mimpi pipa setengah seabad holografik 3D televisi menjadi kenyataan; sejauh ini, namun, besarnya jumlah perhitungan yang diperlukan untuk menghasilkan satu hologram yang rinci, dan bandwidth besar diperlukan untuk mengirimkan aliran mereka, telah membatasi teknologi ini untuk penelitian laboratorium.
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