SU434621A1 - FLOWER ANALYZING DEVICE - Google Patents

Description

one

This invention relates to a technique for reproducing color images.

It is known to veto an instrument with a color separation prism, a light source, and a photoelectric transducer consisting of a transmitting television tube with a sweep generator.

The aim of the invention is to expand the range due to the characteristics of separations.

In P1 Pit: Rightly set, this is achieved by introducing amplifiers with an adjustable gain ratio and shaper of the color separation characteristics into it.

In the drawing there is a block-1 scheme of the proposed device.

The color analyzing device contains an illuminator 1, Ko Nde | Nsor 2, lens 3, diaphragm 4, prism 5, lens 6, lens 7, transmitting television tube 8 with a diverting system 9, a sweep generator 10, a cryptographic generator 11, 12-amp converters ( 14, the formers 15-17 of the signals of color separation characteristics.

The proposed facility works as follows.

The image is alerted by the illuminator through the condenser (IB, in the case of transparent images, the adviser and the condenser are set to a different position). The reflected (transmitted) light from the image is projected by lens 3 into the plane of the diaphragm. The dimensions of the diaphragm are set on the basis of the required resolution of the analyzer, equal to one image element. The transmitted light through the aperture of the lens 6 is directed to a color separator prism. Lens 6 is set in such a way that the aperture falls in this focus. As a result, all rays passing through the lens are converted into a parallel beam of rays. The beam spitting light man rotates the light rays by an angle proportional to the wavelength of the light. For example, the blue rays turn more than green or red. Since a beam of parallel rays falls on a prism,

also bunches of parallel light rays, but inclined relative to each other at different angles. On the path of the light rays emerging from the prism, a lens 7 is mounted, in the focal plane of which the transmission tube is located.

Since the light rays of the same length of the shuttlecock emerge from the prism parallel to the nuchco m, they are reduced to a single point on the tube. Light beams of a different wavelength focus

Ib point elsewhere t; rubkich as a result

O; a color line (optic) is formed, at various points of which the intensity of the light varies depending on the spectral composition of the analyzed point of the image.

With the help of a deflection system, controlled from ratios, rotating the device, the electron beam in the transmitting tube produces an alternate reading of light information along the spectrum. At the output of the transmitting tube in the time interval equal to the period T of the sweep of the electric, H1NOGE beam, an electrical signal is received, on the alternate alternatingly proportional to the spectral component of the light beam. In this case, in the interval T, the time is proportional to the wavelength of the analyzed opactra.

The signal received at the output of the television tube predicts the spectral nature of the radiation of the analyzed light, since it contains information on the intensity of the radiation / X over the entire range of light waves. The accuracy of the shape of this spectral characteristic depends on the ratio of the geometrical dimensions of the diaphragm /, the width of the S line on the photocathode of the transmitting tube, and the dimensions d of the reading spot in the tube. At each MOMOHIT, the time within the sweep period T signal / x at the output of the transmitting tube is proportional to the intralance of the radiation intangibility on the part of the spectrum determined by the interval of the light wavelengths

. max - h

d,

BUT

D

where d is the diameter of the reading spot;

D is the scan line length; Yamax, min - the length of the light waves, corresponding to the final values in the unfolding spectrum.

If the reading spot diameter corresponds to the width S of the spectrum, the magnification factor of lenses 6 and 7 is equal to k, then the interval Ax is equal to

X

AH (ma "

Separation of the full information on when the color separated signal in a given coordinate system (for example, X, Y, Z) is performed with the power of three gain-adjustable amplifier-converters. ITALY TESTS allow you to electronically multiply the instantaneous values of two signals. The first signal (the signal from the transmitting tube) is proportional to the spectral amplitudes / x of the intensity of color radiation, and the other (color separation signal) to the spectral characteristics of the corresponding color separation channels.

The spectral characteristics of separations are formed in the formers.

O.b signal have the same frequency and phase of repetition, as the generator 10 and

5 a synchro generator is connected to the signals of the characteristics of the separations of the separations.

The amplifier converter may, for example, be a tube amplifier cascade on a pentode, in which the multiplied signals

0 is fed to two grids (control and screen), 11 transistor cascade with two transistors connected in series, controlled by corresponding signals over the bases, and so on.

5 Separation signals generated in formers continue to be periodic signals in sync with the frequency of the sweep lines. The forms of these signals in the time interval T strictly correspond to the forms

0 spectral characteristics of the corresponding color separation channels, taking into account the optical sensitivity of the transmitting tube.

Subject invention

A colorizing device for B1010P | color image generation systems containing a color separation prism, an optical system, a light source, a photoelectric converter consisting of a transmitting television tube with a sweep generator, and a synchronizer, which is in order to expand the range of measured color separations, to

Three amplifiers of the transducer are connected in parallel to the output of the transmitting television tube, the second input of each of which is connected to the output of the corresponding shaper of the color-detal characteristics, and the sync signal of the rotor is supplied to the inputs of the said shaper.