SU1267341A1

SU1267341A1 - Light shutter

Info

Publication number: SU1267341A1
Application number: SU843825836A
Authority: SU
Inventors: Юрий Степанович Кулаенко
Original assignee: Предприятие П/Я Г-4385
Priority date: 1984-12-17
Filing date: 1984-12-17
Publication date: 1986-10-30

Abstract

Изобретение относитс к лазерной технике и позвол ет повысить надежность работы устройства путем исключени обратного отражени . На коре 1 затвора установлены заслонки 4, внешние стенки которых расположены под углом к оптической оси и снабжены кожухом 14. Перемещающиес посредством вт гивани магнитной части 2 кор 1 в электромагнит 8 заслонки 4 перекрывают поток лучистой энергии, котора частично поглощаетс их внешними стенками 5, частично отражаетс на рабочие поверхности 15 и 16 кожуха 14 и поглощаетс ими. Отвод тепла от стенок заслонки осуществл етс трубкой 13 охлаждени . 1 ил.The invention relates to laser technology and makes it possible to increase the reliability of the operation of the device by eliminating back reflection. Dampers 4 are installed on the bark 1 of the shutter, the outer walls of which are at an angle to the optical axis and provided with a casing 14. Moving by means of drawing in the magnetic part 2 of the core 1 into the electromagnet 8, the shutter 4 blocks the flow of radiant energy which is partially absorbed by their outer walls 5, partially reflected on the working surfaces 15 and 16 of the casing 14 and absorbed by them. Heat is removed from the walls of the damper by cooling tube 13. 1 il.

Description

Изобретение относится к лазерной технике, в частности к световым затворам для перекрытия высокоинтенсивного потока энергии, излучаемого лазером. 5The invention relates to laser technology, in particular to light shutters for shutting off a high-intensity flow of energy emitted by a laser. 5

Целью изобретения является повышение надежности работы устройства путем исключения обратного отражения высокоинтенсивного потока.The aim of the invention is to increase the reliability of the device by eliminating the back reflection of a high-intensity flow.

На чертеже представлен световой Ю затвор, общий вид.The drawing shows a light Yu shutter, General view.

На якоре 1, состоящем из магнитной 2 и немагнитной 3 частей, закреплены заслонки 4, между внешней 5 и внутренней 6 стенками каждой из ко- *5 торых заключена полость охлаждения 7. Якорь 1 установлен в однообмоточном разделенном электромагните 8, через который пропущены трубка-стяжка 9 подачи охлаждающего реагента и труб- 20 ка-стяжка 10 отвода охлаждающего реагента, со штуцерами 11 и 12 соответственно. Трубка 13 охлаждения внешней стенки 5 заслонки 4 введена в полость охлаждения 7. Внешняя стенка 5 заслонки 4 снабжена кожухом 14, рабочие поверхности 15 и 16 которых соответственно выполнены поглощаю, щими.At anchor 1, consisting of magnetic 2 and non-magnetic 3 parts, shutters 4 are fixed, between the outer 5 and inner 6 walls of each of which * 5 a cooling cavity is enclosed 7. Anchor 1 is installed in a single-winding divided solenoid 8, through which the tube coupler 9 of the supply of the cooling agent and pipes-20 ka-coupler 10 of the outlet of the cooling agent, with fittings 11 and 12, respectively. The cooling tube 13 of the outer wall 5 of the shutter 4 is inserted into the cooling cavity 7. The outer wall 5 of the shutter 4 is provided with a casing 14, the working surfaces 15 and 16 of which are absorbent, respectively.

Световой затвор работает следующим образом.The light shutter operates as follows.

На однообмоточный разделенный электромагнит 8 кратковременно подается напряжение, и магнитная часть 2 якоря 1 втягивается в него. При этом заслонки 4 перемещаются, перекрывая поток лучистой энергии, который, попадая на внешние стенки 5 заслонок 4, частично поглощается, частично отражается на кожух 14, где он также частично поглощается и частично отражается и т.д.A voltage is applied to the single-winding divided electromagnet 8 for a short time, and the magnetic part 2 of the armature 1 is drawn into it. In this case, the shutters 4 move, blocking the flow of radiant energy, which, getting on the outer walls 5 of the shutters 4, is partially absorbed, partially reflected on the casing 14, where it is also partially absorbed and partially reflected, etc.

Отвод тепла от поглощающих поверхностей 15 и 16 происходит по всему объему полости охлаждения 7. Чтобы вывести заслонки 4 из зоны распространения потока лучистой энергии на однообмоточный разделительный электромагнит 8 повторно подается кратковременно напряжение и благодаря перемещению магнитной части 2 якоря 1 заслонки 4 также перемещаются.Heat is removed from the absorbing surfaces 15 and 16 throughout the entire volume of the cooling cavity 7. In order to remove the shutters 4 from the propagation zone of the radiant energy stream, a short-time voltage is re-applied to the single-winding isolation electromagnet 8 and, due to the movement of the magnetic part 2, the armature 1 of the shutter 4 also moves.

Таким образом, в световом затворе предлагаемой конструкции намного увеличена площадь поглощения потока лучистой энергии и исключено ее обратное отражение.Thus, in the light shutter of the proposed design, the area of absorption of the flux of radiant energy is much increased and its back reflection is excluded.

Claims

The invention relates to laser technology, in particular to light valves for blocking the high-intensity energy flux emitted by a laser. The aim of the invention is to improve the reliability of the device by eliminating the reverse reflection of high-intensity flux. The drawing shows the light gate, a general view. On the cortex 1, consisting of magnetic 2 and non-magnetic 3 parts, the dampers A are fixed, between the outer 5 and inner 6 walls of each of them a cooling cavity 7 is enclosed. Anchor 1 is installed in a single-winding divided electromagnet 8 9 supply of cooling reagent and tube-stzhka 10 removal of about: h1, binder reagent, with fittings 11 and 12, respectively. The cooling tube 13 of the outer wall 5 of the shutter 4 is inserted into the cooling cavity 7. The outer walls of the 5 shutter 4 are provided with a casing 14, the working surfaces 15 and 16 of which are respectively absorbing. Light shutter works as follows. A single-winding divided electromagnet 8 is briefly energized, and the magnetic part 2 of core 1 is drawn into it. In this case, the shutters 4 are moved, blocking the flow of radiant energy that falls on the outer walls 5 of the shutters 4, is partially absorbed, partially reflected on the casing 14, where it is also partially absorbed and partially reflected by the ToD. Heat removal from the absorbing surfaces 15 and 16 occurs throughout the entire volume of the cooling cavity 7. In order to remove the dampers 4 from the zone of propagation of radiant energy to the single-winding dividing electromagnet 8, a short-term voltage is repeatedly supplied and, due to the movement of the magnetic part 2, the core 1 of the damper 4 is also moved. Thus, in the light gate of the proposed construction, the absorption area of the flow of the powdered energy is much larger and its reverse reflection is excluded. Claims of invention A light shutter containing associated with a damper drive, between the outer and inner walls of each of which a cooling cavity is enclosed, characterized in that, in order to increase reliability of operation by eliminating back reflection, the outer wall of each damper is angled to the optical axis and equipped with a casing, while the working surfaces of the casing and the outer wall are absorbing and set at an angle to each other, excluding back reflection.