SU1458854A1 - Projection apparatus for adjusting optronic devices - Google Patents

Abstract

The invention relates to projection devices used to adjust and control the parameters of the television tubes used in

Description

particular in television astronomical installations. The aim of the invention is to improve the tuning accuracy. For this purpose, a device comprising a housing 1 in which a lens 12 is placed and two optical channels interconnected with each other, containing a light source of 2.2, opaque glass 3.3, a block of light filters 4.4, a capacitor 5.5 and a test Object 6.6 associated with the actuator 7 and implemented in the form of an opaque screen with an off-center hole, a third optical channel is inserted, containing a synchronizer 16, a pulse generator 15, a light source 14, a mirror 13, filled with a central diaphragm aperture, the lens is mounted directly in front of the mirror. scarlet 13. 1 ill.

The invention relates to projection devices used to set up optoelectronic devices and control parameters of television tubes used, in particular, in television astronomical installations.

The purpose of the invention is to improve the tuning accuracy.

The drawing shows the device, the overall appearance.

The device comprises a housing 1, two - identical optical channels consisting of a light source 2.2, flat glass 3.3, a light filter 4.4, a condenser 5.5, a test object 6 of the first channel, a test object 6 with an off-center a bore and an actuator 7 of the second channel, two mirrors 8 and 9, a cube-prism 10 and a pulse illumination channel consisting of a cube-prism 11, a .12 lens, a mirror 13 with a central diaphragm hole, a source 14 of light, a generator of 15 pulses and a synchronizer sixteen.

The image of test object 6 is illuminated by source 2 by means of ground glass 3, light filter D, condenser 5 and projected into the image plane by lens 12, which is a half component of a symmetrical lens with a mirror 13 and a cube-prism 11. A second channel consisting of an illuminator 2, the frosted glass 3, the light filter 4, the condenser 5 and the test object 6, which is a non-projection. An acoustic screen with an off-center hole driven by the actuator 7, is matched to the first by means of a cubicle 10 and an image of the test object is built in the plane of the images by means of the lens 12, the mirror 13 of the cube-prism 11. The third channel, consisting of the source 14 and the pulse generator 15, is connected via the diaphragm opening in the mirror 13. The image of the source 14 creates the cube-prism 11 in the plane 12 image uniform field of flash illumination. Moreover, the generator of the pulses 15 is controlled by the actuator 7 through the synchronizer 16. The mirrors 8 and 9 serve to reduce the overall dimensions of the device.

The device works as follows.

The light source 2 by means of a frosted glass 3, a light filter 4, a condenser 5 uniformly illuminates the test object 6, the image of which when viewed mirrors 8, 9 and 13, the cube-prism 11 and the lens 12 is projected into the image plane.

The second channel works in a similar way; a test object is entered into the main branch using a cube-prism 10.

Channel pulse illumination works as follows.

The actuator 7 is mechanically connected to the synchronizer 16, which ensures the closure of the electrical contacts in-phase with the rotation of the drive axis of the test object b. -Synchronizer 16 is electrically connected to the generator 15 pulses, the formation of the leading edge of which coincides with the closure moment of the synchronizer contacts

16. The operation time and the pulse duration of the generator 15 are adjusted to determine their optimal parameters, ensuring the maximum sensitivity of the television transmission tube, which is determined from the image of test objects 6, 6. The pulses formed by the generator 15 provide power to the third light source 14, which, through a central diaphragm opening in the mirror 13, provides a pulsed illumination in the image plane aligned with the plane of the photocathode of the television tube.

The use of a diaphragm orifice in the junction of channels allows the formation of a practically flat light field of a pulsed illumination.

When selecting. The television transmitting tubes turn on either the first with the third optical channels (for determining the parameters of a television transmitting tube when projecting fixed test objects onto them), or the second with the third optical channels (for determining the parameters of the television transmitting tube when projecting moving test objects on them) in this case, the generator 15 is turned on and off by the synchronizer 16, depending on the movement of the test object along the photocathode of the television transmitting tube.

Claims (1)

Invention Formula A projection device for adjusting optoelectronic devices, comprising a housing in which two identical optical channels are placed, each of which consists of a successive light source, ground glass, a light filter unit, a condenser and a test object, each channel through a system of reflecting surfaces optically connected with the projection lens, and the test object of one of the channels is connected with the drive and made in the form an opaque screen with an eccentric orifice, characterized in that, in order to increase the tuning accuracy, it is provided with an additional optical channel consisting of series-connected synchro generator, whose input is connected to a drive, pulse generator, and a light source optically coupled to the lens through a mirror, c. centering aperture, with a projection lens mounted directly between the mirror with the centering aperture and the last of the reflective surfaces, in the form of a cube-prism.