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Ditropic fisheye lens for single-camera dome projection/projection systems

A fisheye lens and diisotropic technology, applied in the diisotropic field of /projection system

Active Publication Date: 2017-04-19
秦皇岛视听机械研究所有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] At present, there is no evidence to show that the research and related literature reports on the ditropic fisheye lens used in the single-camera dome projection / projection system

Method used

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  • Ditropic fisheye lens for single-camera dome projection/projection systems
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  • Ditropic fisheye lens for single-camera dome projection/projection systems

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040]According to the overall technical design plan, the ditropic fisheye lens used in the single-position dome projection / projection system, on the basis of ensuring that the lens can perfectly match the basic performance of a specific digital projection / projector, is based on the configuration of the system where it is located. Under the condition that the application environment remains unchanged, only through the characteristic design of the lens and the innovation of the optical structure, the differential mapping relationship between the dome and the digital projection / projector chip is established. The differential mapping relationship is highlighted in the lens The difference between the sagittal and meridional directions is to increase the image domain area formed by the inverse projection of the lens on the entire dome screen, thereby improvin...

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Abstract

The invention discloses a di-anisotropic fish-eye lens for a spherical screen showing / projection system in a single machine position. A characteristic design scheme comprising the di-anisotropic fish-eye lens and an equivalence principle optical structure scheme can achieve a special thing-image mapping relationship by constructing difference of optical characteristics of the di-anisotropic fish-eye lens in sagitta of arc and meridian directions in a targeted manner. Compared with the used conventional fish-eye lens, the spherical screen showing / projection system constructed by using the di-anisotropic fish-eye lens at least can increase the pixel utilization ratio or the light energy utilization ratio by over 50%.

Description

technical field [0001] The present invention relates to a new form of fisheye lens, in particular to a dichroic fisheye lens used in a single-position spherical screen projection / projection system, which is combined with a digital projection / projector for spherical crowns and similar spherical crowns It can be used to construct a projection / projection project using a dome as an image carrier, such as a dome theater, a dome exhibition hall, astronomical science hall, a dome query and teaching system. It belongs to the application of object-image non-similar ultra-wide-angle optical imaging technology in the field of film and television. Background technique [0002] Dome film or dome projection / projection system was first introduced to my country in the 1980s. As a special film, it is deeply loved by the audience for its novel form, shocking effect and strong sense of presence. The early dome projection / projection systems were all stand-alone systems. If other standard ancil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/06G02B13/00G03B21/14
CPCG02B13/005G02B13/006G02B13/06G03B21/14
Inventor 陈琛于国辉宋涛李维善刘宵婵张禹
Owner 秦皇岛视听机械研究所有限公司
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