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The Experimental Research Of Influence To Organism By Light Pollution

Posted on:2007-08-27Degree:MasterType:Thesis
Country:ChinaCandidate:X F TangFull Text:PDF
GTID:2121360215497337Subject:Optical Engineering
Abstract/Summary:PDF Full Text Request
Light pollution is a new type of environmental pollution, including white light pollution, manpower day and color light pollution. Light pollution processes great harms, hurting eye and skin, endangering human health, arousing traffic accident, upsetting regular life circle of animal and plants and so on.Based on current research method of light pollution studied home and abroad, this paper focuses on effect of different illumination to biological tissues'microvascular system. Furthermore, the effect of a fixed illumination to tissues'microvascular system under varied power is studied. The light pollution of different light sources is also discussed. Following is the major work of this paper.1.A survey of the previous researches on light pollution and the current development of this area is conducted. The scope, features and harmfulness of light pollution are discussed in this paper. The light pollution is classified in a scientific manner.2.The spectral line characteristic of each kind of typical illuminant is analyzed and compared in this paper.3.In addition, the work explores the relation among harmfulness and light wavelength, power of illuminant, lighting time. Discrepancy of physiology situation of tissues'microvascular system under illuminant is specified, providing the effective data to ascertaining the safe wavelength and right irradiation time.4.Some conclusions are made and some expectations about measures against light pollution are put forward.The result of this work indicates that, the greater the power and the longer the time, the much effect of light pollution to organism is done. Among four kinds of illuminant, light pollution amounts to a maximum by using the light source of 637.3nm. In terms of appropriate illuminant, illuminant usages, this study provides experimental basis and valuable reference to choosing living and working environment.
Keywords/Search Tags:light pollution, illuminant, organism, microvascular system, harmfulness, protection
PDF Full Text Request
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