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led light bulb

A technology of LED light bulbs and LED chips, applied in cooling/heating devices of lighting devices, lighting and heating equipment, electrical components, etc.

Inactive Publication Date: 2016-08-17
IRIS OHYAMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the LED light bulb 900 is suitable for illuminating a wider area, it is preferable to limit the illuminating area to a narrower area in order to be used as a downlight.

Method used

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Examples

Experimental program
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Embodiment Construction

[0101] Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

[0102] Figure 1 to Figure 4 It shows the LED light bulb based on 1st Embodiment of this invention. The LED light bulb 101 of this embodiment includes a casing 200 , a light source part 300 , a light guide 400 , a power supply part 500 and a lamp socket 600 . The LED light bulb 101 is attached to lighting fixtures such as a downlight and used as a substitute for a halogen lamp, for example.

[0103] The housing 200 is a base element of the LED light bulb 101 , and includes a heat dissipation member 210 and a power supply housing 220 in the present embodiment. The heat dissipation member 210 includes, for example, a metal represented by aluminum, such as Figure 4 As shown, the bottom portion 201 and the side wall portion 202 are included. The bottom 201 is in the shape of a circular plate and supports the light source unit 300 . The side wall...

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PUM

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Abstract

The present invention provides an LED light bulb suitable for use as a replacement mechanism for halogen lamps, for example. The LED light bulb comprises: a light source part (300), which includes an LED chip (310); a casing (200), which includes a bottom (201) supporting the light source part (300) and a side wall part surrounding the light source part (300) (202), and an opening on one side of the first direction; the socket (600), which is installed on the other side of the first direction relative to the housing (200); and a light guide (400), which is arranged on the The space surrounded by the side wall part (202) includes an incident surface (410) facing the light source part (300), and an exit surface for emitting light incident from the incident surface (410) to one side in the first direction. (420), and a peripheral side surface (430) with a cross-sectional shape that is located between the incident surface (410) and the exit surface (420) and whose cross-sectional shape is larger toward the exit surface (420) side from the incident surface (410) side.

Description

technical field [0001] The invention relates to an LED light bulb including an LED (Light Emitting Diode, light emitting diode) chip as a light source. Background technique [0002] Figure 22 It shows an example of the conventional LED light bulb (for example, refer patent document 1, 2). The LED light bulb 900 shown in this figure includes a plurality of LED modules (module) 901 , a lamp cover (globe) 902 , a heat dissipation member 903 and a lamp socket 904 . The LED module 901 is a light emitting device of the LED light bulb 900 and incorporates an LED chip (not shown). The lampshade 902 diffuses and penetrates the light from the LED module 901 . The heat dissipation member 903 is a member for dissipating heat from the LED module 901 and includes aluminum, for example. The socket 904 is a portion for attaching the LED light bulb 900 to a lighting fixture for an incandescent light bulb. The LED light bulb 900 is intended to appear similar to an incandescent light bulb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/232F21V13/00F21V29/89F21V29/77F21Y115/10
CPCF21V7/0091H01L2224/48091F21Y2105/10F21K9/233F21Y2115/10F21K9/61H01L2924/00014
Inventor 水田纮平铃木才三
Owner IRIS OHYAMA