Title:
SIGNAL LAMP
Document Type and Number:
Japanese Patent JP3482030
Kind Code:
B2
Abstract:
PURPOSE: To surely prevent a signal lamp from being artificially turned on due to the reflection of external light by a reflector in the lamp.
CONSTITUTION: A diffusing plate 4, a light shielding lens 5 and a front lens 8 are arranged on the front side of a reflector 2 and a light source 3. The lens 5 is constituted of continuously forming plural convex lens parts 5a in the vertical direction in the horizontally arranged states of the lens parts 5a so that the convex part 5b of each convex lens part 5a is turned to the front side. An external light shielding member 6 arranging its one end on a focus F on the center optical axis of each convex lens part 5a and arranging the other end in a state inclined in the forward down direction is applied to each lens part 5a.
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Inventors:
Ryosaku Nakata
Application Number:
JP6577695A
Publication Date:
December 22, 2003
Filing Date:
March 24, 1995
Export Citation:
Assignee:
Nippon High Voltage Electric Co., Ltd.
International Classes:
G08G1/095; (IPC1-7): G08G1/095
Domestic Patent References:
| JP212600A | ||||
| JP5298595A | ||||
| JP6247000U |
Attorney, Agent or Firm:
Yoshimichi Hasegawa