Fluorescent Lamp Artificial Daylight Units for Colour Matching

Autor:	H. R. Ruff, W. Harrison, G. T. Winch
Rok vydání:	1951
Předmět:	Incandescent light bulb Materials science genetic structures business.industry Hot cathode Fluorescence eye diseases law.invention Optics Electric light law Cold cathode Optoelectronics Daylight Electric discharge sense organs Electrical and Electronic Engineering business Fluorescent lamp
Zdroj:	Lighting Research and Technology. 16:1-12
ISSN:	1477-0938 1477-1535
DOI:	10.1177/147715355101600101
Popis:	The colour and colour rendering characteristics of natural daylight are considered together with the requirements for artificial daylight sources for critical colour matching purposes. The development of artificial daylight units utilising tubular fluorescent electric discharge lamps is shown to follow two main lines, namely,(a)a combination of fluorescent powders in either cold or hot cathode fluorescent lamps, and(b)a combination of radiation from fluorescent lamps and groups of incandescent tungsten filament lamps.Practical tubular fluorescent daylight colour matching units using cold cathode tubes are in use in industry for critical colour matching purposes, whilst experimental hot cathode lamps have been used in some prolonged field tests.An alternative method being investigated is to combine blue fluorescent lamps with incandescent tungsten filament lamps. This provides a closer approximation to black body spectral distribution than at present possible with fluorescent lamps alone, provided care is ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::625eec1644daad5456d288f8a8081dd3 https://doi.org/10.1177/147715355101600101 Zobrazit plný text záznamu