TEST FOR IMPROVEMENT OF LUMINOUS INTENSITY OF SIGNAL LANTERN
Projectors with high pressure mercury vapor lamps were introduced in the flood lighting of the shunting yard. The increase in the level of illumination produced by their higher luminous output than the formerly used incandescent lamp projectors, though advantageous to general shunting task, has caused some difficulty in recognizing the light of the signal lantern. To investigate the visibility of the signal hand-lantern, laboratory and field tests were carried out, with the conclusion that the beam candlepower of the lantern should be considerably increased.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
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Corporate Authors:
JAPANESE NATIONAL RAILWAYS
TOKYO, Japan -
Authors:
- Tsuchiya, Y
- Ishibashi, Y
- Publication Date: 1960-9
Media Info
- Pagination: p. 62
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Serial:
- Railway Technical Research Institute, Quarterly Reports
- Volume: 1
- Issue Number: 3
- Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
- ISSN: 0033-9008
- Serial URL: http://www.rtri.or.jp/eng/
Subject/Index Terms
- TRT Terms: Lanterns; Lighting; Signal devices; Signal lights; Technology; Visibility
- Geographic Terms: Japan
- Old TRIS Terms: Signal lanterns
- Subject Areas: Construction; Freight Transportation; Railroads; Safety and Human Factors;
Filing Info
- Accession Number: 00033092
- Record Type: Publication
- Report/Paper Numbers: Quart Rpt
- Files: TRIS
- Created Date: Jul 8 1994 12:00AM