公开(公告)号：US11133172B2

公开(公告)日：2021-09-28

申请号：US17251949

申请日：2019-06-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinji Kihara ,  Kazuhiro Daijo

IPC: H01J61/54 ,  H01J61/80 ,  H01J61/06

Abstract: There are provided a glass tube in which a rare gas under predetermined pressure is sealed, a cathode electrode and an anode electrode disposed in a first end portion and a second end portion of the glass tube, respectively, facing each other, and a trigger electrode including a transparent conductive film formed on an outer peripheral surface of the glass tube. The trigger electrode includes an electrode body disposed on the outer peripheral surface of the glass tube, along a tube axis direction of the glass tube, and an enlarged portion that covers at least any one of the cathode electrode and the anode electrode, and that has a circumferential width wider than a circumferential width of the electrode body. This provides a flash discharge tube capable of reducing variations in optical distribution characteristics during light emission with a small amount of light, and improving life durability during continuous emission of a large amount of light and at short intervals.

公开(公告)号：US10309618B2

公开(公告)日：2019-06-04

申请号：US15420278

申请日：2017-01-31

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yoshimichi Enno ,  Hiroyuki Yoshioka ,  Katsunori Kawabata ,  Takao Kondo ,  Kazuhiro Daijo ,  Koji Uenoyama ,  Yoshihiro Muragaki

IPC: F21V14/06 ,  F21V29/74 ,  F21S2/00 ,  F21V5/00 ,  F21V7/04 ,  F21V11/00 ,  F21V13/12 ,  F21V17/12 ,  F21V19/00 ,  F21Y115/10

Abstract: An illuminating device includes: first lenses individually corresponding to LEDs; a light control member including light transmission channels individually corresponding to the first lenses and a light blocker surrounding the light transmission channels; and second lenses individually corresponding to the light transmission channels. Each first lens includes a light concentrator for producing concentrated light by concentrating light emitted from a corresponding LED, and a reflector surrounding the light concentrator to produce reflected light by reflecting light emitted from the corresponding LED in a direction across the concentrated light. Each first lens outputs illumination light including the concentrated light and the reflected light produced from the corresponding light emitting diode. Each light transmission channel transmits the illumination light output from a corresponding first lens. The light blocker prevents transmission of the illumination light emitted from each first lens. Each second lens refracts the illumination light transmitted by a corresponding light transmission channel.

公开(公告)号：US10352533B2

公开(公告)日：2019-07-16

申请号：US15620085

申请日：2017-06-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuhiro Daijo ,  Hiroyuki Yoshioka ,  Katsunori Kawabata ,  Yoshimichi Enno

IPC: F21V7/08 ,  F21V5/04 ,  F21V13/04 ,  F21V29/89 ,  F21Y105/18 ,  F21Y113/17 ,  F21Y115/10 ,  F21V7/22 ,  F21V7/00 ,  F21V29/76

Abstract: In a light source device, an axis extends from a light-emitting face and perpendicularly to the light-emitting face. A reflective surface includes a curved surface defined by rotating a first arc which is a part of an ellipse around the axis. The ellipse has a first focal point and a second focal point which are located on the light-emitting face. The second focal point is located adjacently to the first arc with respect to a center of the ellipse. A distance from the first focal point to the axis is shorter than a distance from the second focal point to the axis.