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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
1	Half-tone screen determiner	US13535649	1949-12-28	US2559915A	1951-07-10	HENRY GAEBEL ARTHUR

2	Photograph copying screen for electrophotography	JP10469883	1983-06-11	JPS59229562A	1984-12-24	SHIROTORI SANOE
PURPOSE:To enhance exactness in copying of continuous gradation parts by placing between a contact glass and an original, a semitransparent or transparent plastic film or the like having a large number of small black spots or lines, etc. uniformly formed on the underside and a matted face on the upside, and copying the original through this film. CONSTITUTION:A semitransparent or transparent plastic film or glass or the like 1, 12, 14, having a large number of small black spots 2 or lines 11 uniformly formed on the underside and roughened matted faces 4, 13 is inserted between the contact glass of a copying machine and an original to copy a photograph of continuous gradation. As a result, light emitted from an original illumination light source (c) is reflected with the surface of the photograph (b) and the presence of the spots 2 converts photographic expression into copying dependent on sizes of spots. Diffused reflection caused by the matted face 4, 13 produces the differences of intensity of light, and an electrostatic latent image corresponding to the original is formed by projecting this diffused light on a photosensitive body and a copy is formed. Accrodingly, light can be controlled by the diffused reflection and continuous gradation, such as expression of a face, and a striped pattern of a coat, can be delicately expressed.
3	Formation of dot image	JP19302682	1982-11-02	JPS5983164A	1984-05-14	AKATA MASANORI
PURPOSE:To stabilize the reproducibility of a dot image by exposing a photosensitive material via two sheets of lenticular lens sheets which are disposed in intersection then developing the material. CONSTITUTION:Image light 1 is exposed, via lenticular lens sheets 2 and 3 which are disposed to intersect orthogonally with each other, on the surface of a photosensitive material 4. The transmitted light obtd. by illuminating an original or the light reflected therefrom may be used as the image light and the image light of a CRT is also usable. The light may be condensed, magnified or reduced by using other lenses according to need. A photosensitive body for electrophotography is also usable as it has less loss in quantity of light in addition to a silver salt photosensitive body which is usually used as the photosensitive material. A dot image is formed by the simple method without using any contact screen in the above-mentioned way and further the number of lines is changeable as desired by adding an optical system, whereby the loss in the quantity of light is decreased.
4	Photographic apparatus	US3467524D	1965-06-01	US3467524A	1969-09-16	GRUVER JOHN H

5	Photographic method of making intaglio printing elements	US48297655	1955-01-20	US2731346A	1956-01-17	GRESHAM DONALD C

6	Photomechanical processes	US20612051	1951-01-15	US2704252A	1955-03-15	CHARLES GRESHAM DONALD

7	Method of making half tones	US14257126	1926-10-19	US1711684A	1929-05-07	IVES HERBERT E

8	Metal-framed half-tone screen and method of forming the metal frame thereon	US10071626	1926-04-08	US1667517A	1928-04-24	HERMANN HAUSLEITER FRITZ

9	Art of photolithography	US44363221	1921-02-09	US1504782A	1924-08-12	POWRIE JOHN H

10	Halftone printing system	US90475	1979-11-01	US4296197A	1981-10-20	Robert W. Stevie
In a halftone printing system, halftone positive prints are made directly from gray scale photographic negatives by an enlarger apparatus which shines a beam of light through the negative and focuses an image of the negative on a sheet of high contrast photographic printing paper through a halftone screen. A secondary light source is provided to irradiate the printing paper to provide satisfactory halftone representation of the gray scale. The positive halftone prints are assembled with cold type from which a negative is made. From the negative, a printing plate is then made.
11	Process for the production of integrally formed, random dot photographic images	US3655381D	1969-04-24	US3655381A	1972-04-11	ROEMER WHITELAW C
Integrally screened, random dot images are prepared with no conventional screening by using grainy images as the exposure image for high-contrast, light sensitive elements. The resultant dot images can be used directly or advantageously, for example, as a lith type image for the preparation of lithographic plates.
12	Halftone camera	US72524958	1958-03-31	US3041931A	1962-07-03	ANANDER ANDREW K

13	Line-variator	US33966653	1953-03-02	US2776595A	1957-01-08	ERNST SCHUMACHER

14	Photomechanical reproduction	US20611951	1951-01-15	US2715578A	1955-08-16	CHARLES GRESHAM DONALD

15	Method for the production of screen negatives	US21555438	1938-06-24	US2204080A	1940-06-11	HANSCH AUGUST C; HANSCH HENRY E

16	Photoengraving screen and process of producing same	US2286035	1935-05-22	US2041317A	1936-05-19	BENSON CHARLES E

17	High-light process for photo-engraving	US11882926	1926-06-26	US1670195A	1928-05-15	MATTHEW GERLAND FREDERICK JOHN

18	Process of producing true gradation prints for making halftone printing plates	US32014019	1919-08-27	US1563499A	1925-12-01	KNUDSEN HUGO C

19	하전입자선 조사장치	KR1020080005786	2008-01-18	KR1020080068594A	2008-07-23	니시오데이지; 오기노다카시; 노무라가즈히로; 다치카와도시키
An apparatus for irradiating the charged particle ray is provided to prevent a detection part from inhibiting the rotation of a charged particle ray irradiation part and to allow the irradiation position of desired part to be ascertained. An apparatus for irradiating the charged particle ray comprises an irradiation room(103) which is provided with a charged particle ray irradiation part(1) capable of rotating round the object where the charged particle ray is irradiated; and a pair of detection parts(30) which are arranged at the both sides by hooking the object to be irradiated into it and detect the disappeared gamma-ray generated at the object to be irradiated, wherein the detection parts can move in the direction of an X axis if the extended direction of the rotation center axis of the charged particle ray irradiation part is defined as an X axis.
20	플렉시블 기판용 디지털 노광 장치 및 그의 노광 방법	KR1020110012752	2011-02-14	KR1020120092865A	2012-08-22	송요탁; 위창현; 서현우; 김태준; 안효찬
PURPOSE: A digital exposure device for a flexible substrate and an exposure method of the same are provided to reduce tact time by automatically aligning a large sized flexible substrate and exposing the substrate without replacing the substrate and a mask. CONSTITUTION: A digital exposure device(100) includes a first substrate adjusting part(110), a vision camera part(130), a digital optical part(140), and a second substrate adjusting part(150). The vision camera part recognizes a plurality of alignment marks on a flexible substrate and transmits controlling signals to an aligning stage part(125) in order to automatically align the flexible substrate. The digital optical part receives digital data corresponding to exposure patterns of the flexible substrate. The flexible substrate is irradiated with ultraviolet rays and reflects the ultraviolet rays based on the digital data. The second substrate adjusting part maintains and winds the exposed flexible substrate.

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