Light emitting device and illumination device
A technology for light-emitting devices and light-emitting elements, which is applied to lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc., can solve problems such as false lighting and weak LED lighting, and achieve the effect of suppressing false lighting
Inactive Publication Date: 2012-07-11
TOSHIBA LIGHTING & TECH CORP
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0007] However, in the above-mentioned conventional lighting device, for example, there is a phenomenon of false lighting, that is, although the power switch (single-break switch) of the lighting device is turned off, the LED is still lighted up weakly.
Method used
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Embodiment Construction
[0042] Below, refer to Figure 1 to Figure 7 A light-emitting device and a lighting device according to an embodiment of the present invention will be described. Figure 1 to Figure 6 Indicates the light emitting device, Figure 7 Indicates a lighting fixture. In addition, in each figure, the same code|symbol is attached|subjected to the same part, and repeated description is abbreviate|omitted.
[0043] Such as Figure 1 to Figure 5 As shown, a light emitting device 1 includes a substrate 2 , mounting pads 3 and wiring patterns 4 formed on the surface of the substrate 2 , a plurality of light emitting elements 5 , and a sealing member 6 .
[0044] The substrate 2 is formed of a material such as glass epoxy resin into an elongated rectangular shape including an insulating layer. The length dimension is about 250 mm to 300 mm, and the width dimension is about 10 mm to 32 mm. The thickness of the substrate 2 is preferably not less than 0.5 mm and not more than 1.8 mm, and i...
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A lighting emitting device and an illumination device which are capable of restraining error lighting for a lighting emitting element by focusing on reducing the stray capacitance. The invention is a light emitting device(1) which includes a substrate(2), a lead pattern(4) and a plurality of mounting pads(3), and a plurality of light emitting elements(5). The substrate (2) includes an insulating layer. The lead pattern (4) and the plurality of mounting pads (3) are formed on a surface of the substrate (2). The lead pattern (4) and the plurality of mounting pads (3) are conductive. The plurality of mounting pads (3) are configured not to electrically conduct. The lead pattern (4) is configured to electrically conduct. The plurality of light emitting elements (5) are mounted on the mounting pads (3) and electrically connected to the lead pattern(4).
Description
technical field [0001] Embodiments of the present invention relate to a light emitting device and a lighting device using a light emitting element such as a light emitting diode (LED) as a light source. Background technique [0002] Recently, LEDs are gradually being used as light sources of lighting devices. In this light source, a plurality of LED bare chips are disposed on a substrate, and each LED chip is electrically connected to a wiring pattern by a bonding wire and mounted on the substrate. Then, a plurality of these substrates are incorporated into a metal body made of aluminum or the like to constitute an LED lighting device. [0003] Such conventional lighting devices are usually powered by a lighting device connected to an AC power source to control the lighting of the LEDs. Furthermore, the metal main body is grounded to be at ground potential. [0004] [Prior art literature] [0005] [Patent Document] [0006] [Patent Document 1] Japanese Patent Laid-Open ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01L25/075H01L33/62H01L33/60H01L33/64F21S2/00F21V23/00F21Y101/02
CPCH05K2201/2054F21V29/20H05K3/284H01L2224/73265H05K2201/10106F21V7/20H05K1/113F21Y2101/02H01L2224/48091H05K1/0209F21Y2103/003F21K9/00H01L2224/45144F21Y2105/001F21V29/505F21Y2105/10F21Y2103/10F21Y2115/10H01L2924/00014H01L2924/00H01L33/483H01L33/641
Inventor 别田惣彦松田周平涉泽壮一上村幸三西村洁
Owner TOSHIBA LIGHTING & TECH CORP