LIGHT EMITTING MODULE AND VEHICLE LAMP

• US 20130188375A1
• Filed: 01/25/2013
• Published: 07/25/2013
• Est. Priority Date: 01/25/2012
• Status: Active Grant

• Current Assignee: Koito Manufacturing Company Limited
• Original Assignee: Koito Manufacturing Company Limited
• Inventors: Masuda, Takeshi, Mizuno, Masanobu, Tsutsumi, Yasuaki
• Granted Patent: US 9,429,304 B2
• Time in Patent Office: Days
• US Class Current: 362/509
• CPC Class Codes: F21S 41/143 the main emission direction of the LED being parallel to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/153 arranged in a matrix
• CPC Class Codes: F21S 41/192 Details of lamp holders, terminals or connectors
• CPC Class Codes: F21S 41/663 by switching light sources by switching incandescent light sources F21S41/162
• CPC Class Codes: F21S 41/692 Shields, i.e. screens not creating an image meant to be projected
• CPC Class Codes: F21S 45/435 circulating the gas within a closed system
• CPC Class Codes: F21V 21/00 Supporting, suspending, or attaching arrangements for lighting devices F21V17/00, F21V19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q, stands for supporting apparatus or articles in general F16M11/00; Hand grips
• CPC Class Codes: F21V 5/04 of lens shape

Abstract

A light emitting module includes a board on which a plurality of light emitting devices are mounted, a first interconnecting section having first interconnections, one end of each of which being connected to one of an anode side and an cathode side of an associated one of the light emitting devices, a second interconnecting section having second interconnections, one end of each of which being connected to the other of the anode side and the cathode side of an associated one of the light emitting devices, and a power supply portion provided along one side of the board to receive an external power. The second interconnecting section has at least one, but less than the number of the second interconnections, collectively interconnecting portion to which another end of each of the second interconnections is connected.

Claims

1. A light emitting module comprising:

a board comprising a mounting portion, the mounting portion being configured such that a plurality of light emitting devices, each of the light emitting devices having an anode side and a cathode side, are mounted on the mounting portion in an array form;

a first interconnecting section comprising a plurality of first interconnections, the first interconnections being configured such that one end of each of the first interconnections is connected to one of the anode side and the cathode side of an associated one of the light emitting devices;

a second interconnecting section comprising a plurality of second interconnections, the second interconnections being configured such that one end of each of the second interconnections is connected to the other of the anode side and the cathode side of an associated one of the light emitting devices; and

a power supply portion provided along one side of the board and configured to receive an external power,

wherein the second interconnecting section further comprises at least one, but less than the number of the second interconnections, collectively interconnecting portion to which another end of each of the second interconnections is connected, and

wherein the first interconnecting section and the second interconnecting section are configured such that another end of each of the first interconnections and an end portion of the collectively interconnecting portion are connected to the power supply portion, and such that the light emitting devices are divided into a plurality of groups that are independently controllable to be turned on and off.

2. The light emitting module according to claim 1, wherein each of the first interconnections is configured to connect an associated terminal of the power supply portion and the associated one or more of the light emitting devices in series, and the first interconnections are arranged in parallel with each other.

3. The light emitting module according to claim 1, wherein the end portion of the collectively interconnecting portion is branched to form a branch portion connected to the power supply portion.

4. The light emitting module according to claim according to claim 1, wherein the power supply portion comprises a first connector connected to the second interconnecting section and a second connector connected to the first interconnecting section.

5. The light emitting module according to claim 1, further comprising the light emitting devices mounted on the mounting portion.

6. A vehicle lamp comprising:

a light emitting module;

a control unit;

an optical member configured to forwardly project light emitted from the light emitting module; and

a lamp body accommodating the light emitting module and the optical member,

wherein light emitting module comprises;

a board comprising a mounting portion, the mounting portion being configured such that a plurality of light emitting devices, each of the light emitting devices having an anode side and a cathode side, are mounted on the mounting portion in an array form;

a first interconnecting section comprising a plurality of first interconnections, the first interconnections being configured such that one end of each of the first interconnections is connected to one of the anode side and the cathode side of an associated one of the light emitting devices;

a second interconnecting section comprising a plurality of second interconnections, the second interconnections being configured such that one end of each of the second interconnections is connected to the other of the anode side and the cathode side of an associated one of the light emitting devices; and

a power supply portion provided along one side of the board and configured to receive an external power,

wherein the second interconnecting section further comprises at least one, but less than the number of the second interconnections, collectively interconnecting portion to which another end of each of the second interconnections is connected,

wherein the first interconnecting section and the second interconnecting section are configured such that another end of each of the first interconnections and an end portion of the collectively interconnecting portion are connected to the power supply portion, and such that the light emitting devices are divided into a plurality of groups that are independently controllable to be turned on and off,

wherein the control unit is configured to control each of the groups to turn the light emitting devices on and off on a group-by-group basis.