I. Overview
The specification was developed to meet the needs of the development of Blu-ray and HDTV 3D video projection technology and the investment and construction of domestic private cinemas.
This specification applies to 3D private theaters with projectors in separate audio and video rooms. For ordinary 3D home theaters where projectors are installed in the living room, this specification can also be implemented.
The specification defines the technical indicators and requirements of each link involved in the 3D private cinema screening and the inspection and measurement methods of the projection system, but does not include the construction, installation and debugging aspects required to achieve the technical conditions.
Through the development of relevant domestic and international industry technology and the actual situation and needs of domestic 3D private cinemas, the scope of application, structural framework and specific content have been repeatedly revised, which will enable us to design and construct our own 3D private cinema. To the role of restraint, it also serves as a guiding role for the decoration designer of the mansion with us in the layout and decoration of the audio-visual room.
2. Normative references and documentation
Some of the following documents and documents become the terms of the specification by reference to the specification.
Guangfa Skills [2004] No. 1036, "Temporary Technical Requirements for Digital Cinema Screening";
GB/T 21048-2007 "Classification and Evaluation of Cinema Star Ratings";
ISO 2910-2007 "Cinematography-Screen luminance and chrominance for the projection of motion pictures";
Alan C. Brawn consults the white paper "Defining the Differences Between Translucent Screens", 2006;
Gao Wufeng, professor-level senior engineer of China Film Science and Technology Research Institute, "Technology and Development of Digital 3D Stereo Films", 2009.
Since 3D private cinema is an emerging industry, there is no relevant screening technical standard in the world. Therefore, in addition to the above-mentioned normative references and documents, we also refer to foreign related organizations such as DCI, SMPTE, and THX in the specification preparation process. The research and phased achievements in digital cinema and home theater technology also take into account the actual situation of the development of domestic 3D movies and 3D home equipment, and demonstrate the advanced nature, compatibility and feasibility in the formulation of indicators.
In view of the rapid development of 3D technology, in order to keep up with the international technology as much as possible, and to make the specification continue to improve while guiding the company, we set certain technical indicators of the specification to be slightly wider. So that it will be revised again in the future.
Formulating norms is a very serious matter. For example, nouns have standardized terms. The term "projection" refers to the use of special equipment to display images on the screen on the screen. The English name is Projection, and "projection." "The English name is the same, but it is more precise than the projection. Therefore, it is called "3D Private Cinema Projection Specification". The projection equipment must be a 3D projector and a screen, eliminating the option of using a TV.
The term "screen" refers specifically to white screens for slides and movies, so the specification uses a special vocabulary for the screen, without the use of ambiguous words such as curtains and screens.
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