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1、E I A LEB3 70 E 3234b00 0006385 2 E f F MAY 1970 LASER EUJWMENT AND INSTALLATIONS FORMULATED BY EIA L-1 LASER SAFETY COMMITTEE LASER ENGINEERING BULLETIN No. 1 Copyright Electronic Industries Alliance Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
2、Resale, 03/30/2007 21:52:41 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A LEB1 70 3234600 OOOb1Bb 4 m - Published by ELECTRONIC INDUSTRIES ASSOCIATION Engineering Department 2001 Eye Street, N.W., Washington, D . C . 20006 Copyright Electronic Industries Alliance Pr
3、ovided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 21:52:41 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A LEB1 70 3234600 0006187 6 = LASER ENGINEERING BULLETIN NO. 1 SAFETY CLASSIFICATION OF LASER EQU
4、IPMENT AND INSTALLATIONS Prepared by the L-1 Laser Safety Committee May 21, 1970 ELECTRONIC INDUSTRIES ASSOCIATION ENGINEERING DEPARTMENT Copyright Electronic Industries Alliance Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 21:
5、52:41 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA LEB1 70 m 3234600 OOOb1BB B m 1. INTRODUCTION 1.1 General This EIA Laser Engineering Bulletin was developed by Laser Safety L-1 Engineering Committee which .is made up of engineering and technical person- nel from th
6、e thirty-four EIA company members of the EIA Laser Subdivision, This group of companies manufactures over 3/4 of the lasers produced by the U .S. Electronics Industry (Dollar Value) . 1.2 Purpose of this Bulletin (a) To promote the safe use of lasers. (b) To identify categories of laser equipment an
7、d installations with distinctive nature and degree of hazard so that the necessary and appropriate safety measures, design features, restrictions, and rules can be applied within each category. (c) To provide a primary safety classification of laser equipment and in- stallations and a convenient ter
8、minology for use in laser safety guidelines, policies, codes, and rules. 2. CATEGORIES .OF LASER EQUIPMENT AND INSTALLATIONS 2 1 Introduction The Safety Classification of Laser Equipment and Installations is a conceptual scheme for classifying all laser usage in terms of (1) the effective use of rad
9、iation confinement and control and (2) the amount of hazardous radiation produced within the equipment. not be limited to): That laser system radiation includes (but may (1) the primary laser beam or beams; (2) any secondary beams of the same or different wavelengths obtained by reflection, refracti
10、on, diffusion, scattering, modulation, scanning, or harmonic or parametric conversion of the primary laser beam or beams; and (3) any radiation emitted by a laser pump source. Application of this scheme requires definition of the magnitudes of laser system radiation to be considered acceptable for e
11、xposure to the human - Copyright Electronic Industries Alliance Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 21:52:41 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA LEB1 70 3234bOO 000bL89 T eye o
12、r to the human skin. These magnitudes are purposefully not specified herein, because the thresholds of damage are not known for all kinds of laser system radiation, and are subject to dispute and periodic re-evaluation. e A l l laser equipment and installations are grouped into four main categories,
13、 defined in Section 2.2, and aye further subdivided into three subcategories, defined in Sec tion 2.3 2.2 Main Categories The Main Categories are based on varying degrees of radiation confinement and control, as follows: I . II. . III. IV. Excluded Access: The laser system radiations are fully conta
14、ined i n an enclosure or area fromwhich people are physically excluded during the operation of the laser. Emission Controlled: The laser system radiations are partially contained in an enclosure or area from which people are physically excluded during the operation of the laser. Under a l l conditio
15、ns of operation any laser system radiation from the enclosure or area is a t levels considered accept- able for human exposure, Gontro1.1.ed Area: The laser system radiations are contained i n an area which is accessible to humans, but which is controlled by a responsible operator. Noncontrolled Ins
16、tallation: The laser is operated without control over human exposure to the laser system radiations. 2,3 Subcategories The subcategories are based on carying degrees of hazard from laser system radiation generated within the laser equipment and are defined as follows: - 2 - Copyright Electronic Indu
17、stries Alliance Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 21:52:41 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A LEB1 70 3234b00 000b190 b Subcategory A - Non-hazardous emission: - Under all
18、 conditions of operation the laser system radiation generated within the laser equipment is at levels considered acceptable for human exposure. Subcaiegory B - Eye-hazardous emission: The laser system radiation generated within the laser equipment may be of a type and magnitude capable of injuring t
19、he eye, but under all conditions of operation it is at levels considered acceptable for exposure to the skin. Subcateogry C - Eye-and-skin hazardous emission: The laser system radiation generated within the laser equipment may be injurious t o the eye and to the skin. - 3 - Copyright Electronic Industries Alliance Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 21:52:41 MDTNo reproduction or networking permitted without license from IHS -,-,-
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