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Lighting device, sign board, show case and security lighting

A technology for lighting devices and reflective parts, which is applied to lighting devices, lighting device parts, display cabinets, etc., can solve problems such as uneven light and glare, and achieve simple structure, low cost, and good light distribution characteristics. Effect

Pending Publication Date: 2020-09-04
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, having Figure 61 or Figure 62 Lighting devices with general light distribution characteristics are prone to graininess, glare and uneven light of the light source, and are not suitable for the above purposes

Method used

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  • Lighting device, sign board, show case and security lighting
  • Lighting device, sign board, show case and security lighting
  • Lighting device, sign board, show case and security lighting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0087] Embodiments of the present invention will be described below based on the drawings. figure 1 It is a longitudinal section showing the structure of the lighting device of this embodiment.

[0088] (Configuration of lighting device 1)

[0089] Such as figure 1 As shown, the lighting device 1 of the present embodiment includes a light emitting unit 11 and a reflector 12 . The light emitting part 11 includes LED21 which is a light source, the board|substrate 22 which mounts LED21, and the light source cover 23 which covers LED21.

[0090] The light source cover 23 is milky white, for example, and has a long rectangle in the front direction of LED21 (the direction in which the light distribution of LED21 is strongest). Therefore, the light emitting unit 11 becomes a three-sided light emitting device that emits light on the front and left and right sides. The material of the light source cover 23 is, for example, Teijin Co., Ltd.

[0091] Co., Ltd.) MKL-3500ZAL. This ...

Embodiment approach 2

[0106] Other embodiments of the present invention will be described below based on the drawings. In addition, for convenience of description, the same reference numerals are assigned to components having the same functions as those described in the above-mentioned embodiment, and the description thereof will not be repeated.

[0107] (Configuration of lighting device 2)

[0108] Other embodiments of the present invention will be described below based on the drawings. Figure 7 (a) is an explanatory diagram showing the configuration and light distribution state of the lighting device 2 according to the present embodiment, Figure 7 (b) means Figure 7 The graph of the light distribution characteristic of the illuminating device 2 shown in (a). in addition, Figure 7 (a) shows the configuration of the lighting device 2 in a longitudinal section.

[0109] The lighting device 2 of this embodiment is as Figure 7 As shown in (a), a reflector 41 is included instead of the refl...

Embodiment approach 3

[0119] Another embodiment of the present invention will be described below based on the drawings. In addition, for convenience of description, the same reference numerals are assigned to components having the same functions as those described in the above-mentioned embodiment, and the description thereof will not be repeated.

[0120] (Structure of Kanban 51)

[0121] Here, a configuration example of a signboard including the lighting device of the present embodiment will be described. Figure 10 (a) is contained within Figure 9 A perspective view of the kanban of the lighting device 32 shown, Figure 10 (b) is a longitudinal sectional view showing the installed state of the lighting device of the signboard 51, Figure 10 (c) is Figure 10 Illumination distribution diagram (in lux) of the kanban shown in (a).

[0122] Such as Figure 10 As shown in (a), the kanban 51 includes a rectangular parallelepiped box-shaped box 52 . Although the up and down direction of the kan...

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PUM

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Abstract

The objective of the invention is to produce a lighting device having excellent light distribution properties at low cost. This lighting device is equipped with a light-emitting unit 11 having an LED(21) and a light source cover (23). The light-emitting unit (11) is such that, for the luminous flux emitted from the surface of the light source cover (23), the ratio between the forward direction and the horizontal direction of the LED (21) horizontal / vertical is 1 or greater. This lighting device is equipped with a reflective plate 12 reflecting light emitted in the backward direction of the light-emitting unit (11).

Description

technical field [0001] The invention relates to an illuminating device, a kanban, a showcase and an anti-theft lamp using a light-emitting diode as a light source. Background technique [0002] Conventionally, instead of fluorescent lamps or incandescent bulbs, light emitting diodes (hereinafter referred to as LEDs) have been used as light sources of lighting devices because they have low power consumption, high brightness, and long life. [0003] Figure 61 It is an explanatory diagram showing the light distribution state of the LED substrate 303 . Figure 62 is said to be Figure 61 The illustrated LED substrate 303 is an explanatory diagram of a light distribution state of a conventional light source unit 305 formed by covering, for example, a milky white tubular or spherical light source cover 304 . [0004] Such as Figure 61 As shown, the LED 301 is usually mounted on one side of the substrate 302 and constituted as the LED substrate 303, and has a light distribution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/68F21S2/00A47F11/10F21V3/02F21V7/04G09F13/04F21W131/405F21Y103/10F21Y115/10
CPCF21V3/02A47F11/10F21V7/04G09F13/04F21S2/00
Inventor 尾山和也
Owner SHARP KK
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