Title:
ＬＥＤを用いた発光標示板
Document Type and Number:
Japanese Patent JP7242192
Kind Code:
B2
Abstract:
To mark information necessary in an emergency with high visibility regardless of daytime and night, and the availability of power supply.SOLUTION: A light emission sign plate includes: an LED configured so as to receive an output of a power source and emit LED light of wavelength 360 nm to 750 nm; a luminous body configured so as to be excited by the LED light and emit phosphorescence; control means for performing control by switching an in-state for giving the output from the power source to the LED and an off-state for disconnecting the output to the LED; and information marking means to be visualized or highlighted by the LED light or the phosphorescence. The light emission sign plate is configured so as to make switching from the off-state to the in-state by the control means before the phosphorescence of the luminous body is extinguished.SELECTED DRAWING: Figure 1
Inventors:
Masahiro Konishi
Application Number:
JP2018080730A
Publication Date:
March 20, 2023
Filing Date:
April 19, 2018
Export Citation:
Assignee:
Denka Co., Ltd.
International Classes:
F21S9/02; F21S2/00; F21V9/32; F21V23/00; G09F9/33; G09F13/20; H05B45/10
Domestic Patent References:
| JP2011065116A | ||||
| JP2006126423A | ||||
| JP2009011461A | ||||
| JP9320315A | ||||
| JP2005146125A | ||||
| JP2009297311A | ||||
| JP2009231091A | ||||
| JP10208524A | ||||
| JP2000171795A | ||||
| JP2008191321A | ||||
| JP2004528589A |
Attorney, Agent or Firm:
Axis International Patent Attorney Corporation
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