DE1900635C - Combined image scanning and recording device - Google Patents

Description

The invention relates to a combined image scanning F i g. 1 and 2 show cross-sections through fibers and Image recording device in which either optical strands, as in the Voreine according to the invention opaque template are used when scanning in the upright position;

successive lines illuminated point by point 45 Fig. 3 shows a first embodiment of a

and the light reflected by it into an electrical combined image scanning and scanning device according to the invention

Signal is converted or a photosensitive image recording device;

Recording material by means of an electrostatic F i g. 4 and 5 show further exemplary embodiments

tric signal modulated light beam point for this.

Point is illuminated, with a between the fore 5 ° F i g. 1 schematically shows the structure of the lighting

position and the light point source arranged, itself processing fiber optic strand, in which the fibers 1 between

Over the width of the template extending fiber see two glass plates 2 are arranged, which around

optic strand as well as one immediately next to it parallel to the bulb of a cathode ray tube was fritted

scanning optics arranged for this purpose. the. Because the spaces 3 between the fibers

A device of this type is already known 55 preventing the reproduction of semitones (German Auslegeschrift 1 221 270), in which the expedient arrangement of the fibers is illuminated over a fiber optic strand, measured in FIG. 2. Here are the fibers under which at the end is fed from a light source. The pressure and heat are welded together, and point-by-point scanning with the scanning optics, which are also designed as fibers, although without gaps, and there are optic strand made with 60 polygonal cross-sections for the individual fibers,
this known arrangement over the ends of this FIG. 3 shows the overall structure of a scanning fiber optic strand according to the invention, which results in a device according to the invention. At the bulb 4 a cathode are combined. This known device, beam tube, is a fiber optic serving as a screen in which the fiber optic strands are essentially only attached to plate 5, which carries a phosphor layer 6 on the inside to separate the scanning device as locally as possible, which is touched via the electron beam 7 device and the lighting device provided . A fiber optic plate 8 is placed on it, is relatively complicated in structure and takes place with welded fibers. Rolled up a lot of space. tes manuscript 9 is on a transparent plate

in the form of a prism or a lens 11 passed - each of the three older elders chosen in this way. This scanning optics is through shielding blocks either red, green or blauej * Ramen 12 and 13 shielded The TDL are interconnected by a so that electrical signals ^mt $ ^ ⁱ ^ * _fi transparent adhesive fourteenth Colors are included dw aiu; a m The reflected from the prism of the scanning optics 10 5 gene manuscript are resolvedWhen light is also fed through a fiber optic 15 of a photocell to the '^^ "^ S 16 shown in Fig. 3 and 4. The from the illumination spot of a transparent material with Phosphorseincht during scanning means of the elec- index tronenstrahles for Lichtaufnahmete.l 7 in the lateral direction, that is, in the processing from the manuscript Rieh- "^^. ^ HJ J _n Tj emitted perpendicular to the plane of light io receiving part by the internal reflection of the transpa penetrates the recten material consisting of the fiber optics and the ^ ^OT * ^ "^^ JJJJ ¹ screen 5, and the fiber optic plate 8 touches so that the light receiving part can also be made from a raser the surface of the manuscript 9, the vertical optic plate with welded fibers height this is moved. Fig. 5 reflected from the manuscript shows another ^A »? ^f »f""f ^ gf J?"

Light is received by the scanning optics 10 and 15 invention, in which also as L.chtaufnahmetal eim. reflected by the prism and arrives via the fiberglass panel used. This FascrooptiklS to the photocell 16, whereby a plate 8 with welded fibers can se, Video signal corresponding to the manuscript is generated. be that the light emitting Sue and

If the conversion-receiving side according to the invention '"« 8 ™! ^ Feebaut Mnd »e, £ Direction is used for printing, the example shown under <a) are two »ckmdBige Kcr electron beam 7 modulated by video signals and formed in the fiber optic plate Unites the manuscript 9 by light-sensitive material, prism 19 or in some cases such as "Electrofax", which is to the cylinder lens in the at the ManusKnptseiit Dt-Bcdrucken suitable. findlicru · inserted during the notch on the notch

Fig. 4 shows a cross-section through a main 25 other side with L '^ / ^^' ^^. F ^ S "" part of another embodiment of the invention. This device has a relatively end in which the photoelectric conversion * - fold structure and ™™ ^ ¹ / ^6th "*" Make be made gradually OnV element directly to the faceplate of a cathode In the _un e ^r JJ) geze.gttn ray tube zusammengefrittet and lichtempfan- example, the fiber is optikplatte8. Stu «av gende element formed directly on the prism part of the transparent 30, and a ^l - ^lch ' ^Aufn ^ ^hmeeleme " ^t _pr ²¹ ₇ HHhn.m ?. Plate is provided, are to light from the light shielding photoelektri- 22, take w 'in de ^ ^ ^{hn' n} g see conversion element. The EIe- shown, in the notched, the light receiving side element 17 for receiving light can be arranged from a forming part.

Silicon diode, a phototransistor or the like. It is also possible to use the fiber optic plates

stand and is arranged adjacent to the prism 11- 35 welded fibers for the light-emitting and net. In this embodiment, the light-receiving side is to be manufactured separately Od. Like. Used as a binder. The source and separate fiber optic plates to be used together The fiber optic plate can, as shown in the drawing, bind instead of being unified from the outset tion can be seen to create structures with a slight inclination *. In this case, i. n. at the polished to have the effect of the mirror reflection 40 example shown in Fig. 5 (c) need the be to reduce component if the printed material fiber optic plates 8 and 8 are not necessarily parrial with a glossy surface as manuscript paper to be cut allel to the fiber than semst if is used. It is advantageous if, for example, the cut surface runs obliquely, a similar one can be used a transparent film of up to 100 μ thick effect can be achieved, provided that the light between the photoelectric conversion 45 emitting side and the light receiving side element and the manuscript to fit closely together. ,. ", -.

Soiling of the device according to the invention Since a fiber optic plate with welded fibers,

to avoid and also reflected the crowd d. H. with no dead space for transmission and licnt light to enlarge. If the thickness of the film is used to record bright points is greater than indicated above, there is a risk that 50 reading of manuscripts according to the invention the signal-to-noise ratio will deteriorate; therefore the semitone is possible. In addition, it is serious specified thickness as maximum value desirable device also suitable for printing. At the same time, the light-collecting fiber net. So it becomes a photoelectronic conversion bundle consist of three layers and with the lungseinrichlung with improved performance activity Photoelectric element achieved via filter in connection 55 with a simple structure. In addition, the stand, each at the output end of the three manufacture setting the scanning position of the Layers of the fiber bundle are arranged, the light point being considerably easier.

1 sheet of drawings

Claims (3)

1 2 It is the object of the invention to provide a combined patent claims: image scanning and recording device of this type, which have a very compact overall 1. Combined image scanning and image recording structure and nevertheless a good efficiency grading device in which either an impenetrable 5 mn is possible. .
This task is, based on a previous line, point by point illuminated and device of the type mentioned above, the light reflected by it into an electrical light, based on the fact that the light point source is converted into a signal per se, is achieved light-sensitive in a known manner by a cathode ray tube 4 Liches recording material is formed by means of a through io, on the screen 5 of the light beam modulated to an electrical signal directly welded to a rigid block is illuminated point by point fiber optic strand, with an intermediate is placed in which at the same time also the separation of the template and the light point source probe optics 10 and an associated therewith, arranged as a prism, formed over the width of the template or lens, the fiber optic strand stretching from the template 9 and an unreflected light laterally from the Block outwards indirectly there in addition to output optics which are arranged parallel to this and lead to a photo element 16, 17. characterized in that the optics 11 and / or the photo element 21 itself are built in that the light point source is known per se. Way through a cathode ray tube (4). biciet is, on the screen (5) directly the 20 according to the device result from the sub- Fiber optic addresses welded to form a rigid block. strand (8) is attached, in which at the same time With cathode ray tubes it is to the permanent also the scanning optics (10) and a recording of the screen image on photographic paper bound, designed as a prism or lens, which is already known per se, on the screen of the cathode from the template (9) reflected light laterally from 25 denstrahlröhrc fiber optic strands welded from the block to the outside to a photo element to put light guides and the photo paper over the (16, 17) leading output optics (11) and / or ends of these light guides to lead to thereby the photo element (21) itself are installed. get sharper records. This in itself 2. Apparatus according to claim 1, characterized in that known technique is used in the one according to the invention indicates that the scanning optics as a fiber device for the formation of the lighting optical strand (8; 19) is formed (Fig. 5). optics and the functional access 3. Device according to claim 1 or 2, this form of construction for the bed through characterized in that between the lighting optics with the special training of the Luminous fiber optic strand (8) and the scanning scanning optics is thus a very compact block optics (8; 10) a shield (12,13) created in the block 35, which is at maximum efficiency and is built in. extremely high resolution an exact scanning also made possible by semitones and the very can be easily manufactured as a unit. The invention is illustrated below with reference to exemplary embodiments explained in more detail.