Digital single machine inner projection whole ball curtain projection system

A projection system and digital technology, applied in optics, instruments, projection devices, etc., can solve the problem of large angle of view of fisheye lens, and achieve the effect of reducing the cost of projection engineering, shortening the engineering cycle, and easy installation.

Inactive Publication Date: 2008-07-09
秦皇岛视听机械研究所有限公司
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  • Abstract
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Problems solved by technology

Therefore, in the optical design process, it is difficult to make the field of view of the fisheye lens very large (more than 210 degrees).

Method used

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  • Digital single machine inner projection whole ball curtain projection system

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Embodiment Construction

[0012] The implementation and beneficial effects of the present invention will be further described in detail below in conjunction with the embodiments of the drawings.

[0013] As shown in Figure 1, the digital stand-alone internal projection full-dome projection system includes a digital projector 1, on which a fisheye lens 2 with a super large field of view is installed to form a projection facility with a super large field of view; The projection facilities are installed in a transmission-type ball screen 3 to form a digital stand-alone internal projection full-dome projection system.

[0014] The present invention is the same as the construction of a conventional dome projection process. First, the size of the dome screen --- diameter R is selected according to the application, and then the output light intensity index of the required digital projector is determined according to the size of R, and the duration of the projection process is also considered. In this way, the...

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Abstract

The invention provides a digital stand-alone internal-projection whole-spherical-screen projection system, which comprises a digital projector, a fish-eye lens with a super viewing angle used for the digital projector and a spherical screen covering 4/5 to 9/10 area of a whole sphere, which is used for a combined projection of the digital projector and the fish-eye lens with the super viewing angle. The invention can conduct full-frame internal projection on a nearly whole-spherical transmission-type spherical screen only with one fish-eye lens and one common digital projector, and can guarantee a certain level of brightness and picture definition; the invention can be applied in the fields of city beautification project, advertising campaign on a plaza, corporation image display and product display, military training and command simulation, dimensional orientation analysis and panoramic analysis, synchronous playing of frames in a gymnasium, etc.

Description

technical field [0001] The patent of the present invention relates to a new projection technology, in particular to a digital stand-alone internal projection full-sphere screen projection system, which can completely project a near-full sphere by using a fisheye lens and an ordinary digital projector. The transmission-type dome screen is used for internal projection of complete images, which are used in urban beautification projects, square advertising, company image and product display, military training and command simulation, spatial orientation and panoramic analysis, and synchronous playback of stadium images. Background technique [0002] With the continuous advancement of digital technology, the digital projection industry has achieved unprecedented development, and various projection applications based on digital projectors have emerged one after another, and dome projection is one of them. The most widely used dome digital projection at present, including the dome s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G02B13/00
Inventor 陈琛李臣友
Owner 秦皇岛视听机械研究所有限公司
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