SU118632A1 - Installation of film projectors for the projection of images on the screen - Google Patents

Installation of film projectors for the projection of images on the screen

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Publication number
SU118632A1
SU118632A1 SU589893A SU589893A SU118632A1 SU 118632 A1 SU118632 A1 SU 118632A1 SU 589893 A SU589893 A SU 589893A SU 589893 A SU589893 A SU 589893A SU 118632 A1 SU118632 A1 SU 118632A1
Authority
SU
USSR - Soviet Union
Prior art keywords
projection
screen
installation
images
film projectors
Prior art date
Application number
SU589893A
Other languages
Russian (ru)
Inventor
Д.А. Брускин
Original Assignee
Д.А. Брускин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Д.А. Брускин filed Critical Д.А. Брускин
Priority to SU589893A priority Critical patent/SU118632A1/en
Application granted granted Critical
Publication of SU118632A1 publication Critical patent/SU118632A1/en

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Description

При осуществлении беспрерывного показа частей кинофильма и необходимости вследствие этого применени  двух кинопроекционных аппаратов неизбежен перекос оптической оси каждого проектора по отношению к центральной оси симметрии зала, проход щей через точку пересечени  диагоналей экрана. Дл  двухпостных киноустановок сквозной проекции величина угла перекоса практически составл ет около 5°, но в р де случаев она может достигать 10°.When carrying out continuous display of parts of the film and the need, as a result of this, of using two film projection devices, the optical axis of each projector is inevitable with respect to the central axis of symmetry of the hall passing through the intersection point of the screen diagonals. For through-projection two-post cinema installations, the skew angle is practically about 5 °, but in a number of cases it can reach 10 °.

Ввиду того, что просвечивающие экраны имеют остропаправленкую светотехническую характеристику, удаление наблюдател  (зрител ) от оси киноаппарата, которым в данный момент производитс  кинопроекци , приводит к изменению  ркости экрана, степень которой зависит от величины угла отдалени .Due to the fact that the translucent screens have a sharply directed lighting characteristic, the removal of the observer (the viewer) from the axis of the camera, which is currently producing film projection, leads to a change in screen brightness, the degree of which depends on the distance angle.

Дл  устранени  указанного недостатка предлагаетс  устанавливать кинопроекторы один за другим уступом.To eliminate this drawback, it is proposed to install film projectors one after the other by a ledge.

На фиг. 1 изображена схема предлагаемой установки кинопроекторов дл  проекции на отражение; на фиг. 2 и 3 - соответствующа  схема дл  проекции на просвет.FIG. 1 shows a diagram of the proposed installation of film projectors for projection on reflection; in fig. 2 and 3 is an appropriate scheme for projection to the light.

В предлагаемой установке проекторы 1 к 2 устанавливаютс  один за другим уступом и укомплектовываютс  объективами с разными фокусными рассто ни ми дл  получени  одинакового масштаба изображений на экране 3.In the proposed installation, projectors 1 to 2 are installed one after the other by a ledge and are equipped with lenses with different focal distances to obtain the same scale of the images on the screen 3.

Дл  уменьшени  заэкранной шахты при просветной проекции изображение может проицироватьс  не непосредственно на экран., а посредством плоского зеркала 4. С целью контрол  за проицируемым изображением перед экраном может быть установлено плоское зеркало 5, позвол ющее киномеханику видеть это изображение.In order to reduce the screen shaft during a projection, the image can not be projected directly onto the screen, but through a flat mirror 4. To monitor the projected image, a flat mirror 5 can be installed in front of the screen, allowing the projectionist to see this image.

№ 118632No. 118632

Предмет изобретени Subject invention

Claims (2)

1. Установка кинопроекторов дл  проекции изображений на экран при переходе с поста на пост, отличающ а с  тем, что, с целью снижени  изменений  ркости экрана, кинопроекторы установлены один за другим уступом.1. Installation of film projectors for projection of images onto the screen during the transition from post to post, which is different from the fact that, in order to reduce changes in screen brightness, film projectors are installed one after the other by a ledge. 2. В установке по п. 1 применение проекторов с объективами различных фокусных рассто ний.2. In the installation of p. 1, the use of projectors with lenses of different focal lengths. ,.2 .2 fPuz. 1fPuz. one
SU589893A 1958-01-13 1958-01-13 Installation of film projectors for the projection of images on the screen SU118632A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU589893A SU118632A1 (en) 1958-01-13 1958-01-13 Installation of film projectors for the projection of images on the screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU589893A SU118632A1 (en) 1958-01-13 1958-01-13 Installation of film projectors for the projection of images on the screen

Publications (1)

Publication Number Publication Date
SU118632A1 true SU118632A1 (en) 1958-11-30

Family

ID=48390653

Family Applications (1)

Application Number Title Priority Date Filing Date
SU589893A SU118632A1 (en) 1958-01-13 1958-01-13 Installation of film projectors for the projection of images on the screen

Country Status (1)

Country Link
SU (1) SU118632A1 (en)

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