Title:
可搬式の飛行警告灯装置
Document Type and Number:
Japanese Patent JP4440277
Kind Code:
B2
Abstract:
A flight navigation light device has a tall construction format, and is preferably a wind energy plant with at least one lighting device mounted on the construction. A brightness detector, or twilight switch, detects the daylight brightness in the surroundings of the building. This is connected with a switch device that evaluates the measured data and switches on the flight navigation lights when the ambient brightness has fallen below a predetermined level. A field of vision-measuring device activates the flight navigation lights when the field of vision has fallen below a predetermined amount.
Inventors:
Alois Voven
Application Number:
JP2007042488A
Publication Date:
March 24, 2010
Filing Date:
February 22, 2007
Export Citation:
Assignee:
Alois Voven
International Classes:
F03D11/04; G08B5/00; F03D11/00; F21S2/00; F21S8/00; F21S9/04; F21V23/04; G08B5/22; G09F13/00; G09F13/20; F21Y101/02
Domestic Patent References:
| JP11182409A | ||||
| JP9319975A |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Masahiro Ishino
Mitsuo Tanaka
Masahiro Ishino