ILLUMINATING DEVICE

• US 20130113393A1
• Filed: 10/25/2012
• Published: 05/09/2013
• Est. Priority Date: 11/07/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kato, Tetsuo, Yoshida, Shigeyuki, Fujita, Hideki, Ide, Naotoshi
• Granted Patent: US 9,335,008 B2
• Time in Patent Office: Days
• US Class Current: 315/297
• CPC Class Codes: F21K 9/278 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21S 9/022 Emergency lighting devices
• CPC Class Codes: F21V 29/506 of globes, bowls or cover glasses
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H02J 9/061 for DC powered loads

Abstract

An illuminating device includes a connecting portion supplied with power, a conversion circuit that converts power supplied from the connecting portion, a case having a tubular shape, a support body that divides the case in the radial direction, and a plurality of light emitting diodes provided on one surface of the support body. The illuminating device further includes a drive circuit that drives the light emitting diodes, a secondary battery provided on the other surface of the support body, a charge/discharge control circuit for the secondary battery, and a control section that lights the light emitting diodes by supplied power and charges the secondary battery. The control section permits lighting of the light emitting diodes by a discharge of the secondary battery in a state in which power supply is stopped.

Claims

1. An illuminating device comprising:

a connecting portion configured to be supplied with power;

a conversion circuit configured to convert power supplied from the connecting portion;

a case having a tubular shape;

a support body configured to divide the case in radial direction;

a plurality of light emitting diodes configured to be provided on one surface of the support body;

a drive circuit configured to drive the light emitting diodes;

a secondary battery configured to be provided on the other surface of the support body;

a charge/discharge control circuit for the secondary battery; and

a control section configured to light the light emitting diodes by supplied power and charge the secondary battery, the control section permitting lighting of the light emitting diodes by a discharge of the secondary battery in a state in which power supply is stopped.

2. The illuminating device according to claim 1, wherein an opening is made at part of the case opposed to the other surface of the support body.

3. The illuminating device according to claim 1, wherein the support body is fixed by a rib that is so provided as to protrude from an inner wall surface of the case.

4. The illuminating device according to claim 1, wherein the case is formed of a resin material.

5. The illuminating device according to claim 1, wherein an inner wall surface of the case and an outer circumferential surface of the secondary battery are so disposed as to be in contact with each other.

6. The illuminating device according to claim 5, wherein the inner wall surface of the case having a cylindrical shape and the outer circumferential surface of the secondary battery formed of a cylindrical battery are in contact with each other.

7. The illuminating device according to claim 1, wherein the support body includes

a main surface part having a plate shape, and

side parts each provided along longitudinal direction of the main surface part and substantially perpendicular to the main surface part, and

the side part is in contact with an inner wall surface of the case.

8. The illuminating device according to claim 1, wherein the support body is formed of a metal material.

9. The illuminating device according to claim 1, wherein a diffuser is provided between the support body and the light emitting diodes.

10. The illuminating device according to claim 1, wherein the control section includes a timer circuit and stops a discharge that is made in response to power supply stop and is from the secondary battery to the light emitting diodes after certain time set in advance.

11. The illuminating device according to claim 1, further comprising

a voice sensor configured to be capable of communicating with the control section,

wherein, if the voice sensor recognizes a predetermined voice, the control section lights or turns off the light emitting diodes in association with the recognized predetermined voice.

12. The illuminating device according to claim 1, further comprising

a motion sensor configured to be capable of communicating with the control section,

wherein, if the motion sensor detects motion of a person, the control section sets the light emitting diodes to a lighting state.

13. The illuminating device according to claim 1, further comprising

a remote-control light receiver configured to be capable of communicating with the control section,

wherein the control section lights or turns off the light emitting diodes in association with a control signal received by the remote-control light receiver.