Journal of the Society of Motion Picture and Television Engineers, Vol. 56 PDF Download

Author: Society of Motion Picture and Engineers
Publisher:
ISBN: 9781332147342
Category : Technology & Engineering
Languages : en
Pages : 574

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 1 of 2 The projector used for this equipment drives a 35 mm motion picture film at the standard (nonintermittent) speed of 24 frame/sec and produces a television signal of 525 lines and 30 frames interlaced 2 to 1. The projector utilizes a system of movable plane mirrors mounted on a rotating drum and controlled by a single stationary cam. Vertical jitter in the television image is minimized by means of an electronic servo system operating on the film sprocket holes, resulting in a residual vertical motion of about 1/2000 of a picture height. A second electronic servo system is incorporated to suppress flicker. The combination of this scanner and a high-grade monitor is capable of producing a television picture with a resolution corresponding to about 8 me and with good tone rendition over a range up to 200 to 1. The Problem of designing a motion picture projector, in which the film motion is continuous, has occupied inventors and designers almost since motion pictures first made their appearance. In the early days of motion pictures the need for a continuous projector stemmed largely from a desire to decrease the wear and tear suffered by the film in the intermittent projector. Later on, with the advent of sound pictures, it was felt that a continuous projector could fit in better with a machine in which the film had to move continuously through the soundhead. Many different types have been proposed and patented but very few of them have gone beyond the experimental stage. A measure of the interest in this problem may be obtained from the bibliography at the end of this paper in which are listed the more important papers published on the subject during the years 1920 - 1945. One particular type of continuous projector, the Mechau projector, did reach the commercial stage and was used in a limited number of German motion picture theaters in the 1930's. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Society Of Motion Picture Engineers
Publisher: Forgotten Books
ISBN: 9780656052936
Category : Technology & Engineering
Languages : en
Pages : 718

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 56: This Issue in Two Parts, Part I, June 1951 Journal; Part II, Index to Vol; 56; January-June, 1951 The Scientific Basis for Establishing the Brightness of Motion Picture Screens (a Discussion of Screen Brightness) About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Society Of Motion Picture Engineers
Publisher: Forgotten Books
ISBN: 9780656228935
Category : Technology & Engineering
Languages : en
Pages : 572

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 59: This Issue in Two Parts: Part I, December 1952 Journal, Part II, Index to Vol. 59; July December 1952 IN view OF the greatly increased use of films in the fields of government, education, television and industry, it is often desirable to have available alternate sound versions of certain productions in order to serve the widest possible audience. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Motion Picture and Tv Engineers Society
Publisher: Forgotten Books
ISBN: 9780484613606
Category : Technology & Engineering
Languages : en
Pages : 552

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 62: This Issue in Two Parts, Part I, June 1954 Journal, Part II, Index to Vol. 62; January June 1954 Fig. 2. Concentration of a constituent after passage of film. Constituent is depleted by chemical reaction and by carry-over. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Victor H. Allen
Publisher: Forgotten Books
ISBN: 9780666501264
Category : Technology & Engineering
Languages : en
Pages : 780

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, 1950, Vol. 54 The treatment covers several of the parameters, but it cannot pre sume to solve completely the problem Of tolerances. It constitutes merely a first order attack on the major quantities involved. The discussion is divided into three parts: (1) factors involving the granular appearance of the random noise; (2) factors involving the perception of adjacent differences in luminance; and (3) factors involving the translation of Signal voltages into image luminances. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Society of Motion Picture Engineers
Publisher: Forgotten Books
ISBN: 9781333936303
Category : Technology & Engineering
Languages : en
Pages : 638

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 61: This Issue in Two Parts, Part I, December 1953 Journal, Part II, Index to Vol. 61; July December, 1953 IT has been noticed in the past that wear on a magnetic-recording head results in a decrease of high-frequency response of the overall magnetic re cording-reproducing system and also in a change of head sensitivity. The information and data contained in this article explain the reasons for the change in frequency characteristic and offer a simple expedient for correcting the losses and thereby extending the useful life of magnetic heads. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Society of Motion Picture and Engineers
Publisher: Forgotten Books
ISBN: 9780656167494
Category : Technology & Engineering
Languages : en
Pages : 618

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 57: This Issue in Two Parts; Part I, December 1951 Journal; Part II, Index to Vol; 57; July-December 1951 Discussed is the use of a high-speed camera as a tool in the Company's Engi neering Division. Motion of fast moving parts is easily plotted by the use of a special timing disc graduated to sec. Through the use of negative film, film can be processed for study within two hours. The design and proving of the light, fast-moving parts in business machine mechanisms has been a difficult and time-consuming job. Advances in this field, while continuous, have been obtained only at a high cost in time and labor. In our study of the action of these mechanisms, we had been limited to the current instrumentation methods and to others which we improvised to record time and movement. But we had felt for some time that if we could slow down or actually stop the normal, rapid motion of parts under study, then our engineering work would be greatly simplified. Five years ago our Engineering Group had a particularly perplexing problem which had been under study for several years and to which a number of solutions were submitted. The question was how could we choose the right one without extensive testing. A high-speed camera capable of exposing 3000 frames a second was procured and put to work on this problem. The camera quickly proved to the satisfaction of engineering the correct solution. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Victor H. Allen
Publisher:
ISBN: 9781332873418
Category : Technology & Engineering
Languages : en
Pages : 674

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 55: July December 1950 Work on rapid processing published up to the present time has revealed little as to the uniformity and image' quality attainable for motion picture use. Since temperatures would often be well above ambient and Short times Of treatment would prevail with the methods considered, automatic equipment with thermostatic control would be needed for the investigation. Also, in due course, practical equip ment would be required for studies of the techniques for applying treating baths and drying air. Two major units of continuous processing equipment were there fore built and used in this work, although supplementary tests were carried out on a variety of other equipment. The first machine was a highly compact, semiportable unit occupying about 2 cu ft of space, and the second was intended for operation at the rate of 90 fpm and was proportionately larger. Based on preliminary tests, the design in both cases provided for the complete processing of the highly hardened Eastman Fine Grain Release Positive Film in a minute or less. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Society of Motion Picture and Engineers
Publisher: Forgotten Books
ISBN: 9780267113859
Category : Technology & Engineering
Languages : en
Pages : 772

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Excerpt from Journal of the Society of Motion Picture and Television Engineers, Vol. 60: January June, 1953 As is well, known, substitution Of image orthicons for iconoscopes requires a substantial reduction of the light intensity to secure operation of the pickup tube at the proper point on the characteristic curve. Many means of accomplishing this have been suggested. We elected an extremely Simple method. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author: Helen M. Stote
Publisher: Forgotten Books
ISBN: 9780267252893
Category : Technology & Engineering
Languages : en
Pages : 584

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Book Description
Excerpt from Journal of the Society of Motion Picture Engineers, Vol. 49: July, 1947 Summary - This paper discusses the construction of the new Republic Productions scoring stage and includes a description of the electrical equipment used for the recording of music. In the building of the stage, which is probably the largest scoring studio in the world, aesthetic elements were given equal consideration with acoustic factors. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.