SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT

• US 20110210664A1
• Filed: 02/25/2011
• Published: 09/01/2011
• Est. Priority Date: 02/26/2010
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Lighting & Technology Corporation (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Lighting & Technology Corporation (Toshiba Corporation)
• Inventors: HISAYASU, Takeshi, ONO, Keisuke
• Granted Patent: US 8,500,316 B2
• Time in Patent Office: Days
• US Class Current: 315/32
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 19/0055 by screwing
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

According to one embodiment, a self-ballasted lamp includes a light-emitting module, a base body, a first insulating member, a screw, a second insulating member, a cap and a lighting circuit. The light-emitting module has a light-emitting portion including semiconductor light-emitting elements mounted on a surface of a metallic substrate. The base body is made of metal and the light-emitting module is arranged on one end side of the base body. The first insulating member is interposed between the substrate of the light-emitting module and the base body. The substrate of the light-emitting module is fixed to the base body with the screws. The second insulating member is interposed between the screws and the substrate of the light-emitting module. The cap is provided at the other end side of the base body. The lighting circuit is housed inside the base body.

Claims

1. A self-ballasted lamp comprising:

a light-emitting module disposed on a surface of a metallic substrate, having a light-emitting portion on which a semiconductor light-emitting element is mounted;

a metallic base body having one and other end sides, the light-emitting module being arranged on the one end side;

a first insulating member interposed between the substrate of the light-emitting module and the base body;

a screw which is made of metal and fixes the substrate of the light-emitting module to the base body;

a second insulating member interposed between the screw and the substrate of the light-emitting module;

a cap provided at the other end side of the base body; and

a lighting circuit housed inside the base body.

2. The self-ballasted lamp according to claim 1, further comprising a globe attached to one end side of the base body so as to cover the light-emitting module.

3. The self-ballasted lamp according to claim 1, wherein the second insulating member includes a wall portion surrounding a circumference of the light-emitting portion.

4. The self-ballasted lamp according to claim 1, wherein the second insulating member includes a reflecting portion facing the circumference of the light-emitting and reflecting light from the light-emitting portion.

5. Lighting equipment comprising:

an equipment body; and

the self-ballasted lamp according to claim 1 attached to the equipment body.