Title:
ランプ
Document Type and Number:
Japanese Patent JP6658919
Kind Code:
B2
Abstract:
A lamp (1A) is provided with: a mouthpiece (2) that is connectable to an electric socket; and a light source unit (5). The light source unit (5) is provided with a heat sink (6) and a light-emitting element (7). The heat sink (6) is provided with a base (8) that has a surface (8a) along a direction parallel to an axis (Ax) or a direction oblique to the axis (Ax), and a plurality of heat radiation fins (9) that are positioned oppositely to the surface (8a) with respect to the base (8). The light-emitting element (7) is supported on the surface (8a) of the base (8). The distance (L5) between the gravity center (13) of the lamp (1A) and the proximal end (3) in the direction of the axis (Ax) is less than 1/2 of the total length (L4) of the lamp (1A).
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Inventors:
Ryo Fuse
Murai Takuo
Daisuke Matsubara
Hayato Yoshino
Murai Takuo
Daisuke Matsubara
Hayato Yoshino
Application Number:
JP2018562777A
Publication Date:
March 04, 2020
Filing Date:
January 18, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Mitsubishi Electric Lighting Co., Ltd.
Mitsubishi Electric Lighting Co., Ltd.
International Classes:
F21K9/237; F21K9/00; F21K9/232; F21V29/503; F21V29/76
Domestic Patent References:
| JP2013122899A | ||||
| JP2016201210A | ||||
| JP2015517185A | ||||
| JP201651582A |
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Yasuo Koizumi
Hideki Takahashi
Yasuo Koizumi