Free-form surface ultra-short-focus projection equipment

The utility model discloses a free-form surface ultra-short focus projection device, comprising a projector main body used for projecting images to a screen and an adjusting structure used for adjusting the height of the projector main body, the adjusting structure is located at the lower part of th...

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Bibliographische Detailangaben
Hauptverfasser:	CHANG WENSHUANG, XU HANGYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM BLASTING CINEMATOGRAPHY ELECTROGRAPHY ENGINEERING ELEMENTS AND UNITS FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOLOGRAPHY LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PHOTOGRAPHY PHYSICS SHOCK-ABSORBERS SPRINGS STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS
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