SU30723A1 - Device for electrical telescopes - Google Patents

Description

At the transfer and reception stations of the proposed device for electrical telescopes, Jenkins optical discs and image-collecting systems were used as optical discs, z for synchronizing the movements of these discs — Lacour fi c wheels. The receiving and transmitting stations are usually connected by radio installations (normal transmitter and receiver of continuous oscillations).

In FIG. 1 depicts the scheme. transmitting, and FIG. 2 - receiving device of the proposed system.

An apparatus for decomposing image pa elements is arranged as follows. The image, the optical axis of which passes through the circular prism / and lens 2, is obtained on screen 3, on. which has a diaphragm: a hole in 1 square. mm Behind this hole is the photoement (fit. 2). The prism /, ground on the semicircle of the glass disk, during its half-turn deflects the starting axis of the image 1 mm down from its main position, while the disk with lenses 2 makes a full turn.

Every object 2 there is a Jnasa ln consists of a plane-convex line, 34 of which is risky,

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deflection optical axis by 2 jf. from its previous position or down. Five lenses do not have all lenses, the first one has no prism, the first one has a prism, as mentioned just now, a deflecting optical axis by 50 mm, the second one by 48 MJ, the third one by 46 mm, and so on. Twenty-sixth deflects up by 2 mm, twenty-seventh up by 4mm up and so on to the fifth one, which deflects the axis also up to 50mm up. The entire image will, therefore, be carried over the diaphragm in strips 1 mm wide for 100 mm. Since the surface of the diaphragm is 1 square. mm, then the same 1 mm strip will be missed between the 1 mm wide strips. But to cover these strips, the circular prism per 1 turn of the disk deflects the optical axis by 1 mm. Disk 2 rotates in 1/20 of a second, so on. ten full images appear per second; in this way, the optical system conducts consistently the entire image on the photosensitive surface of the diaphragmed photocell.

The image engine, made with the help of optical imaging devices, occurs on the surface of the opaque screen 3, in the center of which

there is a 1 sq. hole. silt; Photocell 8 is located directly behind this opening. Such a photocell can be a potassium photocell, a selenium chamber, etc. The photocell, when supplied with a pulsed high-frequency current, gives a special advantage when exposed to light.

The basis of the described system for creating electric currents under the action of light is the method of artificial modulation of a pulsed current or a generating photocell. The schemes of the generating photocell can be quite different depending on the generation frequency.

Additional high-frequency modulation of the photocell divides the image into an additional row of dark and light elements, the number of which should be chosen greater than the number of elements of the mechanical division of the image. So, with a diaphragm surface of 1 square. mm and image surfaces at 100x50 mm there are 5000 elements in 1/10 of a second, i.e. 50,000 per second. Therefore, the frequency of modulation or generation of the photocell should be taken at least 500,000 per second, which is a cooTBeTCTByeff wavelength of 600 meters.

The amplitudes of the current of the generating photocell and then modulated by light are amplified by a high-frequency cathode amplifier 11 or a DC amplifier (i.e., aperiodic with potentiometers) and act on the grids of the radiotelephone transmitter.

Image reception is carried out in the following way.

At the receiving station (Fig. 2), having at its disposal a conventional receiving device, the modulated oscillations are amplified without rectification and act on the cathode amplifier, in the circuit of the anode of the last lamp of which there is a piezoquartz resonator 12. -Frequency of oscillation of the quartz resonator / 2. is chosen to be exactly equal to the frequency of the pulsating potential of the photocell, and in this way all modulation changes from the action of light on photocells are perceived in the circuit. piezoquartz. with corresponding amplitudes.

The optical axis of the resonator must be strictly parallel to the surfaces, and then such a resonator oscillates only for a certain period and may be suitable for the purposes of far vision, using the property of simple crystals to behave as biaxial if they are compressed (Bio's experience). Quartz during its vibrations is extremely strongly compressed, so that there are cases that at the moment of resonance some plates break into pieces. In such a case, if such a quartz resonator 12 is placed between two nikols 15, 16 through which a strong beam of light passes, then by turning the polarization of the nicols at some angle, the light can be completely drawn. When a signal appears that will cause quartz 72 to vibrate with a certain amplitude depending on the light modulation, a part of the light will pass and a light spot of the corresponding brightness will appear on the screen.

The system described constitutes the main body of the receiving station - the light relay. The light from a strong point lamp is collected by a capacitor and directed into a system of nicols 15, 16, between which a piezoquartz resonator from the last amplifying lamp is placed. The resulting light pulses scattered by the optical system 7-2 is the same as it was used for expansion. image on the ground glass, on which the image appears.

The synchronism of the movements of the optical, transmission and receiving station systems is carried out with the help of electric motors equipped with Lakura 5 sec. Corrective interrupter wheels. The Lakura 5 phono wheels keep the synchronism of rotating systems rigidly enough, but in order to level out an occasional lunge out of sync, there is an interrupter on the system axis giving exactly the same number of interruptions as the tuning fork Yu, if the rotation is exactly at a given speed. The interrupter also powers the electric 6-magnet 5, 7, acting on the Lacure 5 wheel as well as the electric magnet of the tuning fork 9-10. In this case, after leaving

The synchronism between the actions of electromagnets 7 on the wheel 5 will cause beats having a fading character and the wheel 5 quickly aligns the stroke, coming again to the main rotational speed.

To bring the mechanism, in addition, in phase coincidence, the axis of rotation of the optical system of the receiving device is connected to the rotating mechanism by means of an electromagnetic clutch, which makes it possible to get some slip between the disks and the motors. In order to obtain complete synchronism, before the beginning of the transfer of the image, some conditional figure is transmitted, for example, a black line that crosses the screen and with the help of a clutch, this line is reached on the receiving screen. Then a transmitted image appears at the same time.

The subject matter of the invention.

A device for electrical telescoping, in which Jenkins discs are used as optical distribution systems in the transmission and reception stations, and Lacoure’s phonic wheels for synchronizing the movements of these disks, characterized in that 1) in the optical distribution systems of the transmitter and receiver are parallel to the discs Jenkins 2 circular prisms (so that the rays of light are refracted in a sequential order in said prisms at a constant angle, and during rotation, they make half the number o revolutions than disks, 2) Lakura phonics wheels, which serve to synchronize movements in the transmitter and receiver, are equipped with additional electromagnets, located on the other side of the wheels compared with the main electromagnets and intended for the same action as the main electromagnets; additional electromagnets in series with them included automatic current breakers placed on the same axis with the wheels and equipped with a number of contact plates equal to the number of iron overlays on the wheels, and 3) The receiver is used to modulate the light of a piezoquartz resonator consisting of a plate of quartz or other similar material, sandwiched between the plates of a capacitor and placed between two Nicols, whereby the said plates are connected, by means of a transformer, to a receiving radiotelegraph circuit without rectifying them from the appropriate high-frequency photovoltaic transmitter device.

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