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Lighting apparatus

A technology for lighting appliances and appliances, applied in lighting devices, fixed lighting devices, lighting and heating equipment, etc., can solve problems such as distance shortening and uneven brightness

Inactive Publication Date: 2014-12-24
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in such a conventional lighting fixture 100, the LED 105 is mounted under the table cover 104 at the central portion of the fixture main body 101, so the distance from the lamp shade 103 becomes closer directly below the LED 105.
[0012] Therefore, in this conventional lighting fixture 100, the brightness of the portion directly under the LED 105 of the globe 103 is higher than that of other portions of the globe 103, resulting in uneven brightness.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0031] Such as figure 1 As shown, the lighting fixture 10 according to the first embodiment of the present invention includes: a fixture main body 11 made of steel plate and painted white; an LED unit 12 mounted on the lower surface of the fixture main body 11; and a translucent lampshade 13 mounted on the The front of the LED unit 12.

[0032] The LED unit 12 has an LED board 14 made of glass epoxy resin and formed in a ring shape similar to the outer shape of the tool body 11 on the lower surface of the tool body 11 formed in a ring shape.

[0033] The LED unit 12 is a first LED unit portion 16 in which a plurality of LEDs 15 are arranged in an annular shape on the outer ring portion of the LED substrate 14, and a plurality of LEDs 17 are arranged in an annular shape on the inner ring portion of the LED substrate 14. The second LED unit part 18 . Here, the plurality of LEDs 15 and the plurality of LEDs 17 are sealed in an annular shape along the shape of the LED substrate...

no. 2 approach

[0060] Next, a lighting fixture according to a second embodiment of the present invention will be described.

[0061] In addition, in each of the following embodiments, the same reference numerals or corresponding reference numerals are assigned to the constituent elements that overlap with those of the above-mentioned first embodiment and functionally identical constituent elements in the drawings, thereby simplifying or omitting description.

[0062] Such as Figure 5 As shown, the lighting fixture 30 according to the second embodiment of the present invention includes a reflective member 31 having a reflective member main body 32 formed in a block shape and having a first LED unit in an outer ring portion outside the reflective member main body 32 The concave side reflective surface 33 that covers the plurality of LEDs 15 of the portion 16.

[0063] The reflective member 31 has a flat reflective surface 34 corresponding to the plurality of LEDs 17 of the second LED unit po...

no. 3 approach

[0069] Next, a lighting fixture according to a third embodiment of the present invention will be described.

[0070] Such as Figure 6 As shown, the lighting fixture 40 according to the third embodiment of the present invention includes a cover 41 covering the LED substrate 14 , and includes a reflection member 42 outside the cover 41 and below the LED substrate 14 .

[0071] The cover 41 is made of, for example, transparent acrylic resin, is formed in a box shape, and an inverted V-shaped groove 43 is formed between the LEDs 15 on the outer ring and the LEDs 17 on the inner ring.

[0072] The reflection member 42 is attached to one outside of the groove part 43 of the cover 41, and has the inclined reflection surface 44 located below the LED15 of an outer ring.

[0073] The inclined reflective surface 44 is formed, for example, by vapor deposition of an aluminum material.

[0074] In the lighting fixture 40 , the light from the LEDs 15 on the outer ring is emitted downward,...

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PUM

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Abstract

The invention relates to a lighting apparatus (10). The lighting apparatus comprises a main body (11); an LED unit (12) with an annular LED substrate (14) mounted on the lower surface of the main body (11), wherein a plurality of annularly sealed LEDs (15,17) are arranged on the LED substrate (14); a transparent lamp shade (13) mounted on the front surface of the LED unit (12); and a reflection part (24) for reflecting the light from the LEDs (15,17) from the bottom along the vertical direction in an inclined way.

Description

technical field [0001] The invention relates to a lighting appliance, which uses an LED as a light source to be installed on a ceiling surface. Background technique [0002] Conventionally, there has been known a lighting fixture in which an LED unit is mounted sideways on a fixture body mounted on a ceiling surface via a light-concentrating and diffusing lens, and a light diffusion cover is installed in front of the LED unit (for example, refer to Non-Patent Document 1, Non-Patent Document 1, Document 2). [0003] In Non-Patent Document 2, a reflection plate is attached to the lower surface of the device main body, and the light emitted from the LED unit is diffused and irradiated by the reflection plate. [0004] Non-Patent Document 1: Sharp Corporation, "About Installation|LED Ceiling Light", [online], 2010, date unknown, Sharp Corporation, [retrieved on June 7, 2013], Internet <URL: http : / / www.sharp.co.jp / led_lighting / ceiling / installation / index.html> [0005] N...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/04F21V19/00F21V7/04F21V31/00F21Y101/02
Inventor 片冈高明
Owner PANASONIC CORP