![]() Light-receiving device for optronic point- and line-scanning of original images
专利摘要:
The invention relates to facsimile technology. The purpose of the invention is to increase the speed, sensitivity and uniformity of the sweep. The device contains a carrier 1 on which the original 2 to be reproduced is located, a source of 3 light which forms a beam of 4 light, a multifaceted mirror 5 mounted on the shaft 6 of an engine 7, a lens 8 and a hollow body 9 which is provided with a hole 10 and a through hole 11 Inside the hollow body 9, which acts as a light-receiving device, reflectors 12 and 13 are located, and in its additional opening 14 there is a photosensitive surface of the optical fiber 15. The device also contains a main photoelectric converter 1 6 (but may have two additional ones). Reflectors 12 and 13 may be a round open cylinder, and the surface of the reflector 13 may be made diffusely reflective or specular. The hollow body 9 m. Is made in the form of a hollow ball, and the opening 11 is closed by a transparent glass or light diffusing plate. 9 hp f-ly, 6 ill. 公开号:SU1508975A3 申请号:SU823435552 申请日:1982-05-07 公开日:1989-09-15 发明作者:Юргенсен Хайнрих 申请人:Др.-Инж.Рудольф Хелль Гмбх (Фирма); IPC主号:
专利说明:
3150 The invention relates to facsimile technology and can be used to scan images of transparent: and opaque originals in flat and drum scanning devices. The purpose of the invention is to increase the speed, sensitivity and uniformity of the scan Figure 1 shows the light-receiving device to the dot-line opto-electronic scanning images. flat opaque originals; 2 is the same, section: FIG. 3 shows a light-receiving device for dot-line optical-electronic scanning of images of flat transparent originals; figure 4 is the same section; FIG. 5 shows a light-receiving device for point-and-line optical-electronic scanning of images of opaque originals mounted on a drum; 6 shows the light-receiving surface of optical fibers and photoelectric converters, a section. Light-receiving device for dot-line optical-electronic scanning images of originals contains carrier 1, on which the original 2 to be reproduced is located, light source 3, which forms light beam 4, multifaceted mirror 5 mounted on shaft 6 of engine 7, lens 8, hollow body 9 equipped with a hole 10 and a through hole 11, and inside the housing there are first and second reflectors 12 and 13, an additional hole 14 in which the light-receiving surface of the optical fiber 15 is located, and a photoelectric converter 16 The light-receiving surface formed by the end surface of the fiber light-guide 15, perpendicular to the optical axis 17, the angular size of the first reflector 12 is equal to the angle 5 opening the light-receiving surface, and the aperture 10 is closed by a transparent, glass or light-scattering plate 18. In apparatus with a drum scan (figure 5), the original 2 is located on the unwinding drum 19. The hollow body 9 is designed as a hollow ball. , s 0 5. ABOUT Q five five For reproduction of color originals, the fiber light conduit-15 is divided into three bundles, 20-2 and 20-3, each of which through a dichroic filter 21-1, 21-2 and 21-3 is optically connected with a corresponding photoelectric converter 16 or with a photoelectronic converter 22 (23). The device works as follows. On the moving plane - carrier 1 - there is an opaque original 2 to be reproduced (FIG. 1). The light source 3, such as a laser light generator, forms a beam of light 4, which falls on a multifaceted mirror 5 mounted on the shaft 6 of the engine 7. Engine 7 drives the multifaceted mirror 5 into rotation at a constant angular velocity. As a consequence, beam 4 emanating from light source 3 is reflected by separate surfaces of a polyhedral mirror 5 and through lens 8 is deflected in the direction of the lines of the original 2. At the same time, the carrier 1 of the original 2 performs a stepping or continuous feed movement perpendicular to the direction of the lines, resulting in original 2 is dotted out in rows. The light-receiving device is made in the form of a hollow body 9. Approximately perpendicular to the deflection plane of the beam 4, reflected from a multi-faceted mirror 5, the hollow body 9 has an additional hole 14 in the form of a slot, oriented in the direction of the rows. The fiber light guide 15, the light-receiving surface of which is located in the additional opening 14, is connected to the photoelectric converter 16. On the side opposite to the original 2, the housing 9 has a slot-shaped through opening 11 oriented in the row direction, and on the side facing the original 2, the slot-shaped hole 10 through which the beam 4 hits the original 2. The beam 4, modulated by the content of the image of the original 2, falls on the first reflector 12, is reflected from its inner surface to the photosensitive th surface and the light through the fiber - water 15 to the photomultiplier transformation t to the user 16. The exact path of the beam 4 is shown in figure 1 by the arrow) is explained in figure 2. The light-receiving surface is formed by the end surfaces of the fibers of the optical fiber 15, which has an optical axis 17 and an aperture angle jb. On the side opposite the light-receiving surface, the inner surface of the hollow body 9, at least in the area bounded by the angle of the optical fiber 15, is diffuse and forms the first reflector 12, while the remaining part of the inner mirror surface forms the second reflector 13. Alternatively, the entire inner surface could be made diffusely reflective. The shape and placement of the first reflector 12 is chosen so that a part of the diffuse light reflected from it, as far as possible, within the aperture angle jb, falls on the light-receiving surface. The scattering light, coming from the first reflector 12, which does not go directly to the light-receiving surface, the second reflector 13, is almost lossless, is directed back to the first reflector 12 and is again diffusely reflected. Beam 4 through the holes 10 and 11 falls on the original 2 placed on the carrier 1, the Beam 4 of light is modulated by the image content on the original 2 and diffusely reflected back in the form of a divergent beam of rays under the aperture through the hole 10. The part of the beam of light rays, which is formed from the specular reflection on the original 2, reflects at a smaller angle J and leaves the light-receiving device through the square opening 11, had no effect. On fig.Z shows the light-receiving device dp transparent originals On the carrier 1 made transparent flat, there is an original 2, which is also transparent. The hollow body 9 has only one hole 10 in the form of a slot. The beam 4 of the light by the multi-faceted mirror 5 is deflected by points and lines of the scanning, through the original 2, the carrier 1 and the transparent glass Q 5 0 five five five 0 0 five 756 The light scattering plate 18 enters the aperture 10. The light sweep is reflected from the inner surface of the hollow body 9 to the light-receiving surface and transmitted by means of the optical fiber 15 to the photoelectric converter 16. Beam 4 falls on the original 2, is modulated by the image content at the point of reading, and enters as a divergent beam of light rays sweep at an angle of opening, through the opening 10 into the hollow body 9. Consumable at an angle to the beam of diffuse light falls directly on the light-receiving light. surface. The beam of scattered light falls, for example, on the reflector 12 and again, scattering, hits the light-receiving surface, The light-receiving device can also be used in drum scanners. In this case, the light-receiving device is filled, for example, in the form of a hollow ball. The light-receiving surface is made in this case round or square. An example of a light-receiving device in a drum spreading device for opaque originals is shown in FIG. The original 2 to be reproduced is superimposed on the sweeping base. raban 19. The light source 3 and the spherical light-receiving device move in the same direction relative to the developing drum 19. The light beam 4, coming from the light source 3, falls through the opening 10 and the through hole 11 to the original 2, is reflected back from the original 2 and the photoelectric converter 16 is converted to image signal. In the drum spreading devices for transparent originals, a spherical light-receiving device can be installed inside the spreading drum 19. In the section plane (Fig. 6), three tows 20-1, 20-2 and 20-3 of the optical fiber 15 are placed one above the other, whose entrance surfaces form the light-receiving surface of the light-receiving device. Output surfaces of harnesses 20-1, 20-2 . and 20-3 optical fiber 15 for the purpose of the beam-splitting of the scanning light beam are optically coupled through three dichroic filters 21-1, 21-2 and 21-3 with a photoelectric converter 16 and additional photoelectric converters 22 and 23, which incorporate three colorimetric signals R, G, and B.
权利要求:
Claims (8) [1] 1. A light-receiving device for a point-line optical-electronic scanning of images of originals, containing a hollow body, inside which are the first and second reflectors and the light-receiving surface, as well as a photoelectric converter, and the hollow body is provided with a hole on the side facing the original, characterized by that, in order to increase the speed, sensitivity and uniformity of the sweep, the hollow body has an additional opening in which the light is received on the surface, fibers are introduced The first light reflector is optically connected between the light-receiving surface and the photoelectric converter; , and the surface of the first reflector is diffusely reflective. [2] 2. Device by If. 1, characterized in that the hollow core with ten V5 20 25 - 35 - 40 thirty The pus is provided with a through hole located on the side opposite to the original. [3] 3. The device according to PP.1 and 2, o t is characterized by the fact that the surface of the second reflector is made diffusely reflecting. [4] 4. The device according to PP.1 and 2, t - which is characterized by the fact that the surface of the second reflector is mirrored. [5] 5. The device according to PP.1-4, t - characterized by the fact that the first and second reflectors are a round open cylinder. [6] 6. The device according to claims 1-5, characterized in that the lengths of the hollow body, hole, through hole, additional hole and light-receiving surface are equal to the maximum size of the original along the scanning line. [7] 7. The device according to claim 1, characterized in that the body is made in the form of a hollow ball. [8] 8. A device according to Claims 2-6, characterized in that the through-hole is covered with a transparent glass plate. 9, Apparatus according to claim 2-6, characterized in that the through-hole of the hollow body is closed by a diffusing plate. 10. Device /, one of claims 1 to 9, characterized in that two additional photoelectric converters are introduced, all of which photoelectric converters are optically coupled through corresponding dichroic optical fibers to the corresponding optical fiber harnesses. //. nat.2 sixteen Phi t YU (d. 5 21-3 6 Compiled by A.Prozorovsky Editor LoVeselovska Tehred A. KravchukKorrektor T.Paly Order 5555/59. Circulation 626 Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 /
类似技术:
公开号 | 公开日 | 专利标题 SU1508975A3|1989-09-15|Light-receiving device for optronic point- and line-scanning of original images SU1303048A3|1987-04-07|Light-receiving device for point and line optoelectronic readout of transparent and non-transparent originals with light beam US5335158A|1994-08-02|High efficiency linear light source JPS5895361A|1983-06-06|Laser printer JPS62275216A|1987-11-30|Optical scanning device FR2516864A1|1983-05-27|OPTICAL PRINTER SU1581231A3|1990-07-23|Device for line reading of semitone transparent originals US5357375A|1994-10-18|Symmetrical prism beam deflector JPH05173028A|1993-07-13|Optical scanning apparatus for document JPH06350808A|1994-12-22|Electronic photograph device RU2000109264A|2002-04-10|SCANNING DEVICE FOR READING IMAGES JPS59216122A|1984-12-06|Light beam scanner RU1775703C|1992-11-15|Multi-way delay line JPS63292108A|1988-11-29|Optical scanning device SU1509802A1|1989-09-23|Opticomechanical scanning device KR19990042848A|1999-06-15|Gwangju Yarn Equipment JPH03172818A|1991-07-26|Optical scanner and optical recorder JPS60218616A|1985-11-01|Contact image sensor SU977948A1|1982-11-30|Photoelectric device for checking object algnment JPH0248630A|1990-02-19|Optical scanner JPS6374020A|1988-04-04|Scanning optical system and recorder with built-in scanning optical system JPH02168767A|1990-06-28|Picture reader JPS57181522A|1982-11-09|Light beam scanner JPH05167788A|1993-07-02|Reflection type original lighting device JPS63111761A|1988-05-17|Optical scanner
同族专利:
公开号 | 公开日 AU8351782A|1982-11-18| DK151436B|1987-11-30| JPS57194667A|1982-11-30| DE3118459C2|1984-01-26| US4453180A|1984-06-05| FI821616L|1982-11-10| DK200782A|1982-11-10| AU552606B2|1986-06-12| FI73344B|1987-05-29| FI73344C|1987-09-10| AT10563T|1984-12-15| EP0064736B1|1984-11-28| DE3118459A1|1982-11-25| FI821616A0|1982-05-07| CA1167310A|1984-05-15| EP0064736A1|1982-11-17| JPS6311828B2|1988-03-16|
引用文献:
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申请号 | 申请日 | 专利标题 DE3118459A|DE3118459C2|1981-05-09|1981-05-09|Light receiving device| 相关专利
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