SU885055A1 - Photosetting apparatus - Google Patents

Description

(54) PHOTONABLE DEVICE

one

The invention relates to a semi-graphic technique, in particular to photosetting machines.

A photo dialer device is known that contains a light source, a fixed font carrier made in the form of a sign matrix for beam profiling, a sign selection unit on a font carrier, a sign extraction deflector, a sign output node on the main optical axis and controlled by a sign position selector in the generated line. one.

The disadvantage of the device is the low resolution of multi-layer deflectors, as a result, the quality of reproduction of text characters is deteriorated. The presence of two deflectors for choosing the sign on both sides of the font carrier results in inaccurate centering of the profiled beam with respect to the main optical axis. In addition, the device is very difficult structurally.

The purpose of the invention is to improve the quality of the reproducible set and simplify the design of the device while maintaining the high performance of the set.

The goal is achieved by the fact that in a device comprising a light source, a fixed font carrier, a sign selection unit on a font carrier, a sign selection deflector, a sign output node on the main optical axis and controlled by a sign location selector block forming line deflector the main optical axis is made in the form of a static system of deflecting prisms and / or mirrors installed with the possibility of directing the profiled beam to the deflection of the sign.

FIG. 1 is a diagram of a photodetector device with a source of coherent radiation and a set of centering prisms in the FontJ5 toner; in fig. 2 is a diagram of the sign output unit to the main optical axis in another embodiment using a set of centering mirrors.

The photosetting device consists of a light source 1, a fixed font carrier 2, made in the form of a matrix matrix, a control device 3, a.-Shaka selection unit 4 on the font carrier, a deflector, 5 connected to it.

a sign on the font carrier, a static beam deflection system for outputting the sign to the main optical axis / made in; the first variant (Fig. 1) in the form of deviating vertical b and horizontal 7 prisms, or in the second variant (Fig. 2) - a set of mirrors 8, the prisms and the mirrors being installed with the possibility of directing the shaped beam towards the deflector 5 of the sign extraction. In the first embodiment, mirrors 9–12 also serve for this. Further, the device includes a block 13 for selecting a position of the mark in the formed line and a deflector 14 for forming a line on the photographic material 15 with the help of a projection lens 16.

In the deflectors, they can be used as electro-optical crystals based on, for example, calide dihydrogen phosphate, as well as other known constructions, including electrically driven mirrors.

The photographic material 15 is located in the area of exposure between the transparent cylindrical plate 17 and the pressure plate 18. The actuator 19 of the photographic material is connected to the control device 3.

The device works as follows.

The control device 3, depending on the sign code, generates a signal corresponding to the coordinates of the sensor matrix 2, and a signal corresponding to the width of this sign. At the same time or in advance, a signal is generated that corresponds to the dial. This signal is applied to a lens actuator actuator (not shown) and a photographic material actuator actuator 19. The character selection unit 4 generates control signals that are fed to the deflector 5. A beam of light from a source, such as laser 1, hits the deflector 5, where it refracts to the required angle, set depending on the control signal. horizontally and vertically. Next, the beam hits the centering prisms 6 and 7 or the centering mirrors 8. These elements direct the beam back to the deflector 5. The deflector 5 directs the shaped beam in accordance with the desired sign to the main optical axis.

Next, the profiled beam hits the second deflector 14, which deflects the beam only in the horizontal direction — along the line. The deflector 14 is controlled from the block 13 for selecting a character location in a line. Then the beam passes through the lens 16

so that the sign illuminated in the font carrier is projected onto the photographic material 15. The moving of the photographic material from line to line is carried out by the actuator 19.

The proposed device significantly

improves the quality of the reproduced text and simplifies the design of the photo-typed device, which will increase the economic efficiency.

Claims (1)

Invention Formula A photosetting device containing a light source, a fixed font carrier made in the form of a sign matrix for beam profiling, a sign selection unit on a font carrier, a sign extraction deflector, a sign output node on the main optical axis and controlled by a sign position selector in the generated line. characterized in that, in order to improve the quality of the reproducible set and simplify the design, the sign output unit to the main optical axis is made in the form of a static deflection system and / or mirrors mounted for directing the shaped beam on the deflector mark selection. Sources of information, spinalty taken into account when. Examination I. US Patent No. 2532033. Cl. 95-5.4, 1970. u V