Title:
FLOODLIGHTING EQUIPMENT
Document Type and Number:
Japanese Patent JP3256991
Kind Code:
B2
Abstract:
PURPOSE: To facilitate the cleaning of a translucent part and minimize a reduction in optical performance.
CONSTITUTION: In a floodlighting equipment having a translucent part 3 on the front surface side of an equipment body 2 to emit a light through the translucent part 3, a cleaning unit 4 having an exhaust nozzle 4a for blowing water or air on the front surface side of the translucent part 3 to clean the front surface side of the translucent part 3 by the cleaning unit 4. The water or air is blown out from the exhaust nozzle 4a of the cleaning unit 4, and sprayed onto the front surface side of the translucent part 3 to remove the dirt or attachment as well as the dust and fallen leaves on the front surface side of the translucent part 3. Therefore, the translucent part 3 can be easily cleaned, material shielding the light of the translucent part 3 is minimized, the translucent part 3 can be kept in clean state, a reduction in optical performance such as light distribution and illuminance of the floodlighting equipment 1 is minimized, and the initial optical performance can be kept.
Inventors:
Takashi Asanuma
Application Number:
JP24931791A
Publication Date:
February 18, 2002
Filing Date:
September 27, 1991
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
B08B3/02; F21S2/00; F21V33/00; (IPC1-7): F21S2/00; B08B3/02; F21V33/00
Domestic Patent References:
| JP2148502A | ||||
| JP287305U | ||||
| JP57118966U |
Attorney, Agent or Firm:
Junji Ando (1 person outside)