Shadow Mask Crt Pdf
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Cathode-Ray Tube Displays for Medical Imaging
DIGITAL IMAGING BASICS Cathode-Ray Tube Displays for Medical Imaging Peter A. Keller This paper will discuss the principles of cathode-ray crease the velocity of the electron beam for tube displays in medical imaging and the parameters increased light output from the screen; essential to the selection of displays for specific 4. a focusing section to bring the electron requirements. A discussion of cathode-ray tube fun- beam to a sharp focus at the screen; damentals and medical requirements is included. 9 1990bu W.B. Saunders Company. 5. a deflection system to position the electron beam to a desired location on the screen or KEY WORDS: displays, cathode ray tube, medical scan the beam in a repetitive pattern; and irnaging, high resolution. 6. a phosphor screen to convert the invisible electron beam to visible light. he cathode-ray tube (CRT) is the heart of The assembly of electrodes or elements mounted T almost every medical display and its single within the neck of the CRT is commonly known most costly component. Brightness, resolution, as the "electron gun" (Fig 2). This is a good color, contrast, life, cost, and viewer comfort are analogy, because it is the function of the electron gun to "shoot" a beam of electrons toward the all strongly influenced by the selection of a screen or target. The velocity of the electron particular CRT by the display designer. These beam is a function of the overall accelerating factors are especially important for displays used voltage applied to the tube. For a CRT operating for medical diagnosis in which patient safety and at an accelerating voltage of 20,000 V, the comfort hinge on the ability of the display to electron velocity at the screen is about present easily readable, high-resolution images 250,000,000 mph, or about 37% of the velocity of accurately and rapidly. -
Chế Tạo Tại Nhật Bản
AKIO MORITA CHẾ TẠO TẠI NHẬT BẢN Bản quyền tiếng Việt © Công ty Sách Alpha NHÀ XUẤT BẢN TRI THỨC Dự án 1.000.000 ebook cho thiết bị di động Phát hành ebook: http://www.taisachhay.com Tạo ebook: Tô Hải Triều Ebook thực hiện dành cho những bạn chưa có điều kiện mua sách. Nếu bạn có khả năng hãy mua sách gốc để ủng hộ tác giả, người dịch và Nhà Xuất Bản MỤC LỤC CHẾ TẠO TẠI NHẬT BẢN ..................................................................................................... 2 LỜI GIỚI THIỆU ....................................................................................................................... 4 CHIẾN TRANH .......................................................................................................................... 8 HÒA BÌNH ................................................................................................................................. 43 BÁN HÀNG CHO CẢ THẾ GIỚI .......................................................................................... 81 NGHỆ THUẬT QUẢN LÝ ................................................................................................... 141 PHONG CÁCH NHẬT BẢN VÀ MỸ ................................................................................ 187 CẠNH TRANH ...................................................................................................................... 220 KỸ THUẬT CÔNG NGHỆ ................................................................................................... 245 NHẬT BẢN VỚI THẾ GIỚI .............................................................................................. -
September 3, 2002 Tech-Note #107 HTML Edition Established May 18, 1997 Underwritten By: Bloomfield & Associates
http://www.Tech-Notes.tv September 3, 2002 Tech-Note #107 HTML Edition Established May 18, 1997 Underwritten by: Bloomfield & Associates Our purpose, mission statement, this current edition, archived editions and other relative information is posted on our website. As of this edition, we’ve had over 23,160 different visitors since we started the website on July 1st, 2000. Thanks to our regulars and welcome to the new folks. This is YOUR forum! Editor’s comments Welcome to Tech-Notes. You now have the option of receiving this enhanced (HTML) version or a plain text version. You can manage this yourself on the website at to bottom of the main page. (http://www.Tech-Notes.TV) If you have any questions or problems, send an e-mail to: [email protected] with your issue. Thank. Starting with this edition, we’d like to feature the technical parts of any station or facility’s website. Your input in support of this effort is most appreciated. Please submit your suggestions to [email protected]. For openers, go to: http://www.wcov.com/technical . Hope you find it as interesting as we did: A true slice out of the mid-60s small market television. For about these picture, visit the website Our thanks to Phil Whitt, Chief Engineer of WCOV-TV and member/survivor of the Order of the Iron Test Pattern.! With this edition, we’d like to welcome the members of Ancient, Honored and Respected Order of the Iron Test Pattern. These survivors of the television industry will be joining us. -
Popular Electronics Build a Subwoofer Let Your Home Theater Roar and Rumble
PRIMESTAR. THE DBS ALTERNATIVE Popular Electronics Build A Subwoofer Let your home theater roar and rumble The Truth About Speaker Cables What's really inside those expensive audiophile cables? Designing Speaker Crossovers Create your own great -sounding speakers d SBk'BDCCH.xux.xx 5-DIGIT 60506 Random -at Image k6O506C+HM997GA006M FEB96 P73 Make 3 -D images that pop o ROBERT RAHM RESP of your computer's screen 116 997 GRAND AUE AURORA IL 60506 -2513 $3.50: U.S. $3.95 CAN. FrJEL1t;Aricarí www.americanradiohistory.comAmericanRadioHistory.Com MIXED-MODE POWER Design & Verify Faster with Electronics Workbench® More Power s Simulate bigger and more Electronic complex circuits. Faster. On average, Electronics Analog, Digital & e nch Workbench Version 4 is o rb more than 5 times faster l compbner Mixed Circuits in a lab than Version 3. Electronics Workbench" The electronics Version 4 is a fully integrated schematic capture, simulator and graphical waveform More Parts generator. It is simple to Multiple parts bins mix analog and digital parts contain over twice the in any combination. components of Version 3. Design and Verify Circuits... Fast! More Models Electronics Workbench s Over 350 real world analog simple, direct interface and digital models are helps you build circuits included free with in a fraction of the time. Electronics Workbench. Try `what if' scenarios and And, if you need more, an fine tune your designs additional 2,0(X) models painlessly. are available. Electronics Workbench delivers the power you need to design and verify analog, digital and true mixed mode circuits. Over 20,000 customers have already put Electronics Workbench to the test. -
New Color Patterning Techniques for OLED Displays
New Color Patterning Techniques for OLED Displays by Yoshitaka Kajiyama A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Doctor of Philosophy in Electrical and Computer Engineering Waterloo, Ontario, Canada, 2015 ©Yoshitaka Kajiyama 2015 Author’s Declaration I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. ii Abstract Organic light emitting devices (OLEDs) are light emitting devices consisting of a stack of organic semiconductors sandwiched by electrodes. Since the first report of a high-efficiency device by Tang and Van Slyke in 1987, OLEDs have attracted considerable attention, particularly for use in flat panel displays. OLEDs provide these products improved power consumption, contrast, response speed, viewing angle, and compatibility with flexible displays. The performance of OLEDs has improved considerably, especially in terms of stability and efficiency, so they can now meet the requirements for some display products. However, the commercialization of OLED displays remains limited and is hampered primarily by manufacturing issues. These issues include low manufacturing yield, high fabrication cost, and low display quality. Manufacturing issues are largely attributed to difficulties with the color patterning process, the fabrication process by which arrays of red, green and blue (RGB) OLEDs can be made side-by-side on one substrate in order to obtain a full-color display. Currently, RGB color patterning is done by sequential vacuum deposition of red, green and blue materials through a pre-patterned shadow mask, which is typically made of a thin metal sheet. -
A Comparative Study on Shadow Compensation of Color Aerial Images in Invariant Color Models Victor J
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 44, NO. 6, JUNE 2006 1661 A Comparative Study on Shadow Compensation of Color Aerial Images in Invariant Color Models Victor J. D. Tsai Abstract—In urban color aerial images, shadows cast by a normalized hue, saturation, and intensity (HSI) color space. cultural features may cause false color tone, loss of feature in- Susuki et al. [11] presented a method that applies separation formation, shape distortion of objects, and failure of conjugate of spatial frequency components and probabilistic shadow image matching within the shadow area. This paper presents an automatic property-based approach for the detection and com- segmentation in the red, green, and blue (RGB) space and pensation of shadow regions with shape information preserved in compensations of intensity and saturation values to improve complex urban color aerial images for solving problems caused by the visibility of features in shadowed regions while retaining cast shadows in digital image mapping. The technique is applied nonshadowed regions and the natural tint of shadowed regions. in several invariant color spaces that decouple luminance and Recently, Huang et al. [12] presented an imaging model of chromaticity, including HSI, HSV, HCV, YIQ, and YC C models. Experimental results from de-shadowing color aerial images of a shadows based on Phong illumination model [13] and em- complex building and a highway segment in these color models are ployed thresholding on the hue, blue, and green-blue difference evaluated in terms of visual comparisons and shadow detection components sequentially to detect shadowed areas, which were accuracy assessments. The results show the effectiveness of the then compensated by applying the Retinex technique to both proposed approach in revealing details under shadows and the shadowed and nonshadowed areas separately. -
Characterization of Color CRT Display Systems for Monochrome Applications
Characterization of Color CRT Display Systems for Monochrome Applications G. Spekowius Soft-copy presentation of medical images is becoming presented frequently on color CRT display systems. more and more important as medical imaging is Particularly, if general-purpose workstations or strongly moving toward digital technology, and health care facilities are converting to filmless hospital and PCs are used for medical viewing, color monitors radiological information management. Although most are more or less standard. These common computer medical images are monochrome, frequently they are graphic displays ate applied without any further displayed on color CRTs, particularly if general- modification. This is in contrast to the medical purpose workstations or PCs are used for medical monochrome monitors, which normally are devel- viewing. In the present report, general measurement oped especially to fulfill the high image quality and modeling procedures for the characterization of color CRT monitors for monochrome presentation are requirements of medical imaging. Because the total introduced. The contributions from the three color number of medical displays is small in comparison channels (red, green, and blue) are weighted accord- to consumer applications, there is little incentive ing to the spectral sensitivity of the human eye for for the consumer display industry to develop spe- photopic viewing. The luminance behavior and the cial color CRTs for medical imaging. Hence, the resolution capabilities of color CRT monitors are ana- lyzed with the help of photometer and charge-coupled limitations of the consumer monitor CRT also device (CCD) camera measurements. For the evalua- apply to medical usage and might limit the image tion of spatial resolution, a two-dimensional Fourier quality for some applications. -
Prepared by Dr.P.Sumathi
COMPUTER GRAPHICS 18BIT53C UNIT I: Overview of Graphics System – Display Devices – CRT – Random Scan and Raster Scan Monitors – Techniques for Producing Colour Display – Beam – Penetration and Shadow – Mask Methods – DVST – Plasma – Panel Displays – Hardcopy Devices – Printers and Plotters – Display Processors – Output Primitives – DDA and Bresenham’s line drawing algorithms – Antialiasing lines – Bresenham’s Circle Algorithm – Character Generation. UNIT II: Two-dimensional Transformations – Scaling, Translation and Rotation – Matrix Representations – Composite Transformations – Reflection – Shearing – Other Transformations. Windowing and Clipping – Concepts – Cohen and Sutherland Line Clipping Algorithm – Midpoint Subdivision. UNIT III: Three dimensional Concept- Three-Dimensional object representations – polygon surfaces – polygon tables- plane equations - Three-Dimensional geometric transformations – translation – rotation – scaling – other transformations. UNIT IV: Three-Dimensional viewing – viewing pipeline - Display Techniques – Parallel Projection – Perspective Projection – Hidden-Surface and Hidden-Line removal – Back face removal – Depth Buffer Method – Scan Line Method – BSP Tree Methods – Depth-Sorting Method – Area-subdivision Method – Octree Methods – Comparison of Hidden-Surface Methods. UNIT V: Colour models and colour applications – properties of light – standard primaries and the chromaticity diagram – xyz colour model – CIE chromaticity diagram – RGB colour model – YIQ, CMY, HSV colour models, conversion between HSV and RGB models, HLS colour model, colour selection and applications. TEXT BOOK 1. Donald Hearn and Pauline Baker, “Computer Graphics”, Prentice Hall of India, 2001. Prepared by Dr.P.Sumathi 1 COMPUTER GRAPHICS Computer graphics is an art of drawing pictures on computer screens with the help of programming. It involves computations, creation, and manipulation of data. In other words, we can say that computer graphics is a rendering tool for the generation and manipulation of images. -
Method of Making a Shadow Mask Verfahren Zur Herstellung Einer Schattenmaske Procédé De Fabrication D'un Masque D'ombre
Europäisches Patentamt (19) European Patent Office Office européen des brevets (11) EP 0 209 346 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int. Cl.7: H01J 29/07 of the grant of the patent: 01.03.2000 Bulletin 2000/09 (21) Application number: 86305399.7 (22) Date of filing: 14.07.1986 (54) Method of making a shadow mask Verfahren zur Herstellung einer Schattenmaske Procédé de fabrication d'un masque d'ombre (84) Designated Contracting States: • Tokita, Kiyoshi DE FR GB 1-1, Shibaura 1-chome Minato-ku Tokyo (JP) • Kida, Kaneharu (30) Priority: 17.07.1985 JP 15598185 1-1, Shibaura 1-chome Minato-ku Tokyo (JP) (43) Date of publication of application: (74) Representative: 21.01.1987 Bulletin 1987/04 Kirk, Geoffrey Thomas et al BATCHELLOR, KIRK & CO. (73) Proprietor: 102-108 Clerkenwell Road KABUSHIKI KAISHA TOSHIBA London EC1M 5SA (GB) Kawasaki-shi, Kanagawa-ken 210-8572 (JP) (56) References cited: (72) Inventors: EP-A- 0 139 379 EP-A- 0 156 427 • Koike, Norio GB-A- 2 080 612 US-A- 3 760 214 1-1, Shibaura 1-chome Minato-ku Tokyo (JP) US-A- 3 878 428 US-A- 4 558 252 • Matsuda, Hidemi 1-1, Shibaura 1-chome Minato-ku Tokyo (JP) • The New Encyclopaedia Britannica, 15th edition, vol.7, page 218 ("lead") Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. -
Sony Corporation Founded
Sony Corporation Founded: May 7, 1946 Headquarters: 1-7-1 Konan, Minato-ku, Tokyo 108-0075, Japan President and CEO: Kazuo Hirai EVP and CFO: Kenichiro Yoshida Major Products Televisions LCD televisions Digital imaging Interchangeable single-lens cameras, compact digital cameras, video cameras Audio / Video Home audio, Blu-ray Disc™ players and recorders, memory-based portable audio devices Semiconductors Image sensors and other semiconductors Electronic components Batteries, recording media, data recording systems Professional solutions Broadcast and professional-use equipment Medical Medical-related equipment Locations of Major Offices and Research Centers (in Japan) : Tokyo, Kanagawa, Miyagi Consolidated net sales ¥7,767.3 billion (fiscal year ended March 2014) Stated capital ¥646.7 billion (as of March 31, 2014) Milestones of some Products & Technologies Television 1960 TV8-301 World's first direct-view portable transistor TV. Comprised of 23 transistors and 19 diodes, this model was developed based on Sony's extensive experience in radio technology. In an age when TVs were assumed to be living room fixtures, this device opened the door to personal television use. Additionally, this model offered three choices for power input. 1962 TV5-303 Developed with the aim of bringing TV entertainment to the automobile environment, this was the world's smallest and lightest monochrome TV, which enjoyed wide popularity under the nickname “micro TV.” The slogan for the device was “Transistors have Changed TV.” 1968 KV-1310 The first in Sony's exclusive line of Trinitron color TVs. This model offered approximately twice the brightness of TVs using conventional shadow-mask tubes. This was a milestone product establishing Sony's superiority in color TVs. -
Issue: TV Applicants Weighing Community Systems, Page .5 New TV Lines and New Prices on Tap, Page 12 TV Antiquates Political Spending Limits, Page .5 24 -In
MARTIN CODEL's AUTHORITATIVE NEWS SERVICE FOR MANAGEMENT OF THE VISUAL BROADCASTING AND ALLIED ELECTRONICS ARTS AND INDUSTRY with ELECTRONICS`" REPORTS PUBLISHED WEEKLY BY RADIO NEWS BUREAU WYATT BLDG. WASHINGTON 5, D.C. TELEPHONE STERLING 3-1755 9 VOL. 8: No. 49 " ` .`1 nz, 6, 1952 I 1952 December f ' ` 66 More VHFs Get Started as UHFs`La ,Lpage 1 UHF Grantees Now Soft -Pedaling Promises, page 7 FCC Grants 6, Splits on 'Joint AM' Cases, page 2 Network TV-Radio Billings: Oct. & Jan. -Oct., page 9 The Transmitter Outlook-UHF & VHF, page 3 Congressional 'Morals' Hearings Wind Up, page 10 Iw this NPA Allotting Steel for New Stations, page 4 $1,500,000 Ford Grant to New Educator Group, page 11 Issue: TV Applicants Weighing Community Systems, page .5 New TV Lines and New Prices on Tap, page 12 TV Antiquates Political Spending Limits, page .5 24 -in. Tube Appears 'Comer' for 1953, page 12 Theatre -TV 'Conventions' Open New Field, page 6 Nov. 1 Count of TV Sets -in -Use by Cities, page 16 MORE VRFs GET STARTED AS URFs LAG: Vhf continues to lead the new -station starters but break in uhf equipment log -jam is expected momentarily (see story, p. 3). This week's STAB (special temporary permits) for new operations were issued by FCC to El Paso's KROD-TV (Channel 4), which began tests Dec. 4 and is planning programs starting Dec. 14 or earlier; to Colorado Springs' KKTV (Channel 11), which is reported all set to turn on the juice Sunday, Dec. 7; to K0P0-TV, Tucson, Ariz. -
Arizona Telemedicine Network: System Procurement Specifications
DOCUMENT RESUME ED 119 886 RC 009 026 TITLE Arizona TeleMedicine Network: System Procurement Specifications. INSTITUTION Arizona Univ., Tucson. Coll. of Medicine.; Atlantic Research Corp., Alexandria, Va. SPONS AGENCY Office of Economic Opportunity, Washington, D.C. REPOFT NO OEO- B2C-5379 PUB DATE 25 May 73 NOTE 105p.; Related documents are RC 009 023-027 EDRS PRICE MF-$0.83 HC -$6.01 Plus Postage DESCRIPTORS *American Indians; Contracts; Definitions; Delivery Systems; Equipment; *Health Services; Performance Specifications; Program Design; Quality Control; Reservations (Indian) ;*Rural Areas; *Specifications; Standards; Technology; *Telecommunication IDENTIFIERS *Arizona TeleMedicine Project ABSTRACT Providing general specifications and system descriptions for segments within the Arizona TeleMedicine Project (a telecommunication system designed to delirer health services to rurally isolated American Indians in Arizona), this document, when used with the appropriate route segmf2nt document, will completely describe the project's required communication facilities (radio, studio, and terminal equipment). Major topics presented include: (1) Scope (communications med.ium and channels, switching, and compatability) ;(2) System Design (design objectives; signal routing, switching, and system management; control console equipment; equipment licensing; etc.);(3) Applicable Documents (Electronic Industry Association Standards; Federal Aviation Regulations; etc.); (4) Transmission Performance Requirements;(5) Equipment Performance Requirements