Light illuminating apparatus
    1.
    发明授权

    公开(公告)号:US11374157B2

    公开(公告)日:2022-06-28

    申请号:US16726318

    申请日:2019-12-24

    发明人: Hiroaki Watanabe

    IPC分类号: H01L33/64 H05K7/20 B41J11/00

    摘要: (Problem)
    To provide a small light illuminating apparatus configured to uniformly cool a plurality of light emitting diodes (LEDs)
    (Problem-solving approach)
    A light illuminating apparatus that irradiates light of a line shape includes a light source unit having a plurality of light sources arranged along a first direction on a surface of a substrate, a heat dissipation unit having a plurality of heat sink fins formed along the first direction, and thermally coupled to an opposing surface side of the substrate, a housing which receives the heat dissipation unit and forms a wind tunnel with a cooling wind flowing inside, wherein the cooling wind cools the heat sink fins, and a first cooling fan which generates the cooling wind flowing in the first direction within the wind tunnel, wherein at least one of opposite sides of a second direction of the housing has an air hole through which the cooling wind is discharged to outside via the plurality of heat sink fins, or the cooling wind is absorbed via the plurality of heat sink fins from outside, and the wind tunnel serves as a pressure chamber in which positive pressure or negative pressure is produced by the cooling wind.

    Circuit board supporting structure and light emitting device having the same

    公开(公告)号:US11191162B2

    公开(公告)日:2021-11-30

    申请号:US16579267

    申请日:2019-09-23

    发明人: Hiroaki Watanabe

    摘要: Provided is a circuit board supporting structure capable of easily detaching a circuit board on a base. The circuit board supporting structure is configured to support a circuit board on a base, in which the base has a concave portion formed in a placement surface of the circuit board, and a rotational operation member configured to be rotatably accommodated in the concave portion and extend and retract in a direction perpendicular to the placement surface by a rotational operation, in which the circuit board has a through hole formed at a position corresponding to the concave portion, in which the rotational operation member has a reference surface formed approximately in parallel with the placement surface, and an operation portion formed on a rotational axis of the rotational operation member so as to be exposed from the through hole.

    Light emitting apparatus
    3.
    发明授权

    公开(公告)号:US10451262B2

    公开(公告)日:2019-10-22

    申请号:US16163974

    申请日:2018-10-18

    发明人: Hiroaki Watanabe

    摘要: Provided is a small-sized light emitting apparatus having a configuration capable of uniformly cooling multiple LEDs. A light emitting apparatus, which emits linear light, includes: a light source unit which has multiple light sources that are disposed on a surface of a substrate in parallel in a first direction; a heat dissipation unit which has multiple heat radiation fins formed in the first direction, and is thermally coupled to a rear side of the substrate; a partition plate which forms a first air channel surrounding the multiple heat radiation fins; a housing which forms a second air channel between the housing and the partition plate; and a cooling fan which receives air from the outside, guides the air to the second air channel, and forms an airflow in the first direction.

    Heat radiating apparatus and light illuminating apparatus with the same

    公开(公告)号:US10317067B2

    公开(公告)日:2019-06-11

    申请号:US15474616

    申请日:2017-03-30

    发明人: Hiroaki Watanabe

    摘要: Provided is a heat radiating apparatus for radiating heat of a heat source in air. The heat radiating apparatus includes a support member in close contact with the heat source on a first principal surface side, a heat pipe supported by the support member, and a plurality of heat radiating fins in a space that faces a second principal surface to radiate the heat transferred by the heat pipe. The heat pipe has a first line part thermally joined with the support member, a second line part thermally joined with the heat radiating fins, and a connecting part. A plurality of heat radiating apparatuses can be connected such that the first principal surfaces are successive, and each of the plurality of heat radiating apparatuses has a receiving part for receiving the connecting parts of adjacent heat radiating apparatuses in the space that faces the second principal surface.

    Circuit board fixing structure and light irradiation device having same

    公开(公告)号:US11909158B2

    公开(公告)日:2024-02-20

    申请号:US16775232

    申请日:2020-01-28

    摘要: Provided is a small-sized circuit board fixing structure capable of enabling a circuit board on a base to be easily replaced. A circuit board fixing structure configured to fix a circuit board onto a surface of a base includes a wire pattern formed on a surface of the circuit board, a first through hole penetrating from a front surface to a rear surface of the circuit board, a second through hole penetrating from a front surface to a rear surface of the base so as to communicate with the first through hole, an electrode penetratively inserted into the second through hole, and a fixing member engaged with the electrode mounted on the surface of the circuit board and configured to fix the circuit board to the base, in which when the fixing member and the electrode are engaged, the wire pattern and the electrode are electrically connected through the fixing member.

    LED substrate and light illuminating apparatus with the same

    公开(公告)号:US10782003B2

    公开(公告)日:2020-09-22

    申请号:US15464707

    申请日:2017-03-21

    发明人: Hiroaki Watanabe

    摘要: Provided is a light emitting diode (LED) substrate. The LED substrate includes a substrate of a rectangular shape having sides in a first direction and a second direction, a plurality of LED devices placed on a surface of the substrate, and a plurality of conducting member which electrically connects the plurality of LED devices on the surface of the substrate and forms 2n circuits independent from each other in the first direction. Each circuit has a first electrode part and a second electrode part. The first electrode part receives input of an electric current from the outside, the second electrode part outputs an electric current to the outside, and the first electrode part and the second electrode part face each other in the second direction, and are alternately placed in the first direction to be point-symmetrical with respect to a center of the substrate as a symmetry point.

    Light irradiating device
    9.
    发明授权

    公开(公告)号:US09841172B2

    公开(公告)日:2017-12-12

    申请号:US15404789

    申请日:2017-01-12

    发明人: Hiroaki Watanabe

    摘要: The light irradiating device which irradiates linear light includes: a substrate which is parallel to first and second directions; a plurality of LED light sources which emits light in a third direction intersecting a surface of the substrate; a heat transporting unit which extends in a direction opposite to the third direction from the substrate; a cooling unit which has a heat radiating pin radiating the heat of the heat transporting unit into the air, an LED driver circuit which drives the LED light source; a housing which has an opening sucking and exhausting external air on one surface of the second direction, accommodates the cooling unit and the LED driver circuit, and forms a wind tunnel in an area where the cooling unit and the LED driver circuit are disposed; and a fan which is provided at a side opposite to the third direction of the cooling unit.