SU910422A2

SU910422A2 - Apparatus for orientating octahedron crystals

Info

Publication number: SU910422A2
Application number: SU802953569A
Authority: SU
Inventors: Александр Аронович Аптекман; Александр Пиневич Житницкий; Евгений Тимофеевич Турко
Original assignee: Киевский Завод "Кристалл"
Priority date: 1980-07-09
Filing date: 1980-07-09
Publication date: 1982-03-07

Description

II

j Изобретение откоситс к области оптических устройств.j Invention tends to the field of optical devices.

В основном авт.св. № 808330 описано устройство дл ориентации кристаллов октаэдрической формы, включающее корпус и закрепленные на нем осветлитель в виде двух параллельных коллиматоров, держатель кристалла, отражатели, симметрично расположенные относительно держател , и просветный экран с нанесенными на него двум пересекающимис в центре экрана шкалами азимутального смещени кристалла и полосами допустимых аксиальных отклонений.Basically auth.St. No. 8,08330 describes an apparatus for orienting octahedral shaped crystals, including a body and an illuminator fixed in it in the form of two parallel collimators, a crystal holder, reflectors symmetrically located with respect to the holder, and a translucent screen with two azimuthal displacement scales intersecting at the center of the screen and axial deviation bands.

Дл совмещени оси,симметрии четвертого пор дка кристалла с осью держател кристалл смещают в держателе таким образом, чтобы два отражени , наблюдаемые на экране, установились в пределах разных допустимых аксиальных отклонений. Недостатком устройства вл етс то, что отт: ражени , наблюдаемые на экране прибора , неотличимы и оператор не знает на каких полосах аксиальнь1х отклонений их следует устанавливать. Это снижает производительность устройства .To align the axis, the symmetry of the fourth order of the crystal with the axis of the holder is shifted in the holder in such a way that the two reflections observed on the screen are set within different permissible axial deviations. The disadvantage of the device is that the OT: the ratios observed on the instrument's screen are indistinguishable and the operator does not know on which bands of axial deviations they should be set. This reduces the performance of the device.

Целью изобретени вл етс повышение производительности.The aim of the invention is to increase productivity.

Поставленна цель достигаетс тем, что устройство дл ориентации кристаллов октаэдрической формы по авт. This goal is achieved by the fact that the device for the orientation of octahedral crystals according to the author.

10 свид. № 808330 снабжено светофильтрами , установленными на коллиматорах. Светофильтры выполнены разного цвета , а шкалы на просветном экране нанесены цветами, соответствующими 10 svid. No. 808330 is equipped with light filters mounted on collimators. The filters are made in different colors, and the scales on the translucent screen are printed in colors corresponding to

ts цветам светофильтров.ts color filter.

На фиг. 1 и 2 изображено описываемое устройство в двух проекци х-; на фиг. 3 - оптическа схема.FIG. 1 and 2 depict the described device in two projections x-; in fig. 3 - optical layout.

Устройство содержит корпус 1 и The device includes a housing 1 and

20 укрепленный на нем держатель 2 оправки 3 кристалла k.20 mounted on it holder 2 mandrel 3 crystal k.

Claims

Case 1 has a plate 5, inclined at an angle of kS ° to its base. on which two collimators 6 are hardened so that their optical axes are parallel. On the collimators symmetrically with respect to the crystal holder 2, two reflectors 7 are fixed, which are perpendicular to the plane of the plate 5 and form angles of the same type of collimator with the optical regions of the collimators 8 and 9 (the left light filter 8 is yellow and the right 9 is green). Between the collimators on the plate 5, the reflector 10 is strengthened, which is perpendicular to the base of the case. The core has an input window 11 in the front, and on its upper part there is a reinforced translucent screen 12 with stripes of permissible axial deviations of the left 13 and right 1 collimators and azimuthal displacement scales of the left 15 and right 16 collimators applied to it. Band 13 and scale 15 of the left collimator are yellow, and band 14 and scale 1b of the right collimator are shown in Green. The light from the two collimators is directed by the reflectors 7 through the light filters 8 and 9 onto two adjacent faces of the crystal. Reflected from the crystal, the light hits the reflector 10, and from it reflects on the translucent screen. The orientation of the crystal on the proposed device is performed as follows. To align the axis of symmetry of the fourth order of the crystal with the axis of the op24 of the matrix 3, the crystal is aligned in the mandrel so that the yellow reflection 17 and the ground reflection 18 observed on the screen are set respectively within the yellow band 13 (left collimator) and within the green band 1 ( right collimator). Setting the required azimuthal displacement angle is performed by rotating the mandrel with the crystal around its axis until the reflections 17 and 18 align with the scale divisions of 15 and 16, respectively, corresponding to the required angle value. The presence of light filters and color scales doubles the crystal orientation performance. The invention The device for the orientation of octahedral crystals according to the ed. swith N 808330, characterized in that, in order to increase productivity, it is equipped with light filters mounted on collimators, the light filters are made in different colors, and the scales on the translucent screen are printed in colors corresponding to the colors of the light filters. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 808330, cl. In 28 D 5/00, 1978.