SU87703A1 - Device for reducing projector light losses - Google Patents

Device for reducing projector light losses

Info

Publication number: SU87703A1
Authority: SU; USSR - Soviet Union
Prior art keywords: projector light; light losses; projection; window; reducing projector
Prior art date: 1949-09-17

Application number

SU408157A

Other languages

Russian (ru)

Inventor

Г.Я. Гурович

Original Assignee

Г.Я. Гурович

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.)

1949-09-17

Filing date

1949-09-17

Publication date

1949-11-30

1949-09-17 Application filed by Г.Я. Гурович filed Critical Г.Я. Гурович

1949-09-17 Priority to SU408157A priority Critical patent/SU87703A1/en

1949-11-30 Application granted granted Critical

1949-11-30 Publication of SU87703A1 publication Critical patent/SU87703A1/en

Landscapes

Projection Apparatus (AREA)

Description

В известных стационарных проекторах освещение проекцнопного (кадрового) окна осуществл етс мощными дуговыми источниками света , усеченный световой конус оннсывает ироекдиоиное окно, образу так называемое « блоко.In the well-known stationary projectors, the lighting of the project (personnel) window is carried out by powerful arc light sources, the truncated light cone implies the viewpoint window, forming the so-called "block".

В нреддагаемом устройстве ирименена система транедиевидиых теплоустойчивых зеркал, дающа возможность иснользоваии светового нотока, не нонадающего в нроекционное окно, из-за различи форм « блока н проекционного окна. В такой конструкции устройства уменьщаютс световые потери проекционного приспособлени , имеющего источник света со свет щимс телом, отличающийс от формы проекционного окна киноироектора.In the device that is pre-ordered, a system of tranide-shaped heat-resistant mirrors has been implemented, which makes it possible to use a luminous note that is not attached to the viewing window, because of the difference in the shapes of the block and the projection window. In this design, the devices reduce the light loss of a projection device having a light source with a luminous body that differs from the shape of the projection window of the film projector.

На фиг. 1 изображена схема предлагаемого устройства, вид сбоку; на фиг. 2-то же, вид по стрелке А.FIG. 1 shows a diagram of the proposed device, side view; in fig. 2 is the same, view along arrow A.

Устройство состоит из четырех плоских зеркал траиеце1гдальпо11 формы, сто щих на пути светового потока, представл ющих собою в сложенном виде усеченную нирамиду, уиираюнгуюс своей вершиной в кра проекционного окна. Наклон зеркал делаетс таким, чтобы освещенность кадра была равномерной и чтобы все отраженные от них лучи, нройд сквозь кадровое окно, захватывалнсь объективом проекционной системы.The device consists of four flat mirrors of the form trajectory, standing in the path of the luminous flux, which are folded in the form of a truncated niramide, uiirayunyuy its top in the edge of the projection window. The tilt of the mirrors is made so that the illumination of the frame is uniform and that all the rays reflected from them, penetrated through the frame window, are captured by the lens of the projection system.

Предмет изобретени Subject invention

Устройство дл умеиьпгептт сиетовых потерь проекторов, нмеюпшх источпик света со свет щимс телом, отличпым по форме от проекционного окна, о т л и ч а ю ш е е с тем, что, с целью собирани и отклонени лучей, не попадающих в проекциопное окно, оно выиолпено в впдс системы зеркал, сто щих на пути светового потока, выход щего за пределы проекционного октта, предстаг,л юп;е11 собой усочотптую четырехгранную призму, вершина которой упираетс в окпа. кра проекционного A device for smart loss of projectors, non-light sources of light with a luminous body that differs in shape from the projection window, so that, in order to collect and deflect rays that do not fall into the projection window, it is located in the airborne system of a system of mirrors standing in the path of the luminous flux going beyond the limits of the projection octta, forerunner, lupe; projection edge

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SU408157A 1949-09-17 1949-09-17 Device for reducing projector light losses SU87703A1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
SU408157A SU87703A1 (en)	1949-09-17	1949-09-17	Device for reducing projector light losses

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SU408157A SU87703A1 (en)	1949-09-17	1949-09-17	Device for reducing projector light losses

Publications (1)

Publication Number	Publication Date
SU87703A1 true SU87703A1 (en)	1949-11-30

Family

ID=48259383

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SU408157A SU87703A1 (en)	1949-09-17	1949-09-17	Device for reducing projector light losses

Country Status (1)

Country	Link
SU (1)	SU87703A1 (en)

1949
- 1949-09-17 SU SU408157A patent/SU87703A1/en active

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