JP3176534U - Wall wash lights and lighting systems - Google Patents

Abstract

A wall wishlight that achieves a uniform light distribution over a wide area is provided.
A wall wash light includes a housing having two end caps (20, 22) facing each other, and a first LED module and a second LED module that are provided inside the housing with their ends connected to each other. It has. Two end caps in which the inner ends of the first LED module and the second LED module are in contact with each other, and the outer ends of the first LED module and the second LED module are respectively opposed to the housing. Abut. The first plurality of LEDs 32 and the second plurality of LEDs 42 have a uniform luminance without a plurality of light spots generated from the plurality of LEDs forming a light spot region as a transition portion therebetween. Positioned along the longitudinal axis of the housing in spaced relation to form a single illumination area.
[Selection] Figure 2

Description

  The present invention relates to a wall wash light and a lighting system using a plurality of wall wash lights.

  Wall wash lights are specially designed to give lighting effects to walls or to “wash” light. Such wall wash lights can be used to illuminate building walls, particularly vertical walls, for decorative purposes or for highlight illumination. Such wall wash lights can be used for indoor or outdoor lighting such as billboards, road signs / highway signs, exhibition halls, shopping malls, corridors, etc.

  Since conventional wall wash lights are generally small and have only a few light emitting diodes (LEDs), the generally rectangular light spot region formed by the LEDs is relatively narrow. If a large area needs to be illuminated, a large number of conventional small wall wash lights are needed, which are spaced apart from each other, but are consequently formed by two adjacent wall wash lights. A transition light spot region is formed between the two light spots. That is, it is difficult to realize a uniform light distribution over a wide area by the conventional wall wash light.

  Therefore, there is a need to create an improved wall wash light and illumination system that can achieve a uniform light distribution over a wide area without forming a light spot region as a transition.

  According to an aspect of the present invention, a housing having two end caps facing each other, and a first LED module and a second LED module provided with end portions connected to each other inside the housing are provided. Wall wash lights are provided. The inner end portions of the first LED module and the second LED module are in contact with each other, and the outer end portions of the first LED module and the second LED module are respectively opposed to the opposing 2 of the housing. Abuts one end cap.

  The first LED module has a first plurality of LEDs, and the second LED module has a second plurality of LEDs. In the first plurality of LEDs and the second plurality of LEDs, a plurality of light spots generated from the first plurality of LEDs and the second plurality of LEDs are light as a transition portion between them. They are arranged along the longitudinal axis of the housing in a spaced relationship so as to form a single illumination area with uniform brightness without forming any point areas.

  According to one embodiment, the first LED module and the second LED module each have nine LEDs. The first plurality of LEDs are provided in a first frame and covered by a first transparent front cover, and the second plurality of LEDs are provided in a second frame and are second transparent. Covered by a front cover. The first plurality of LEDs are electrically connected to a first printed circuit board, and the second plurality of LEDs are electrically connected to a second printed circuit board.

  The housing further includes an upper panel, a lower panel, and a rear panel. The upper panel, the lower panel, and the rear panel, together with the two end caps, form a front opening for generating light from the first plurality of LEDs and the second plurality of LEDs. ing. Each of the two end caps has a flat panel perpendicular to the longitudinal axis of the housing. The housing may have an elongated shape.

  The housing is pivotally connected to two spaced apart base members and is pivotable about a pivot axis defined by two coaxial rollers. The two coaxial rollers are connected to the housing and are rotatably accommodated in two sleeve portions integrally formed with the two base members. The housing includes a first position where the first plurality of LEDs and the second plurality of LEDs face in a direction opposite to a direction of an installation surface of the wall wash light; the first plurality of LEDs; The second plurality of LEDs can pivot at a pivot angle between a second position where the second plurality of LEDs faces the installation surface at a predetermined angle. The pivot angle is a maximum of 135 degrees.

  According to another aspect of the present invention, there is provided an illumination system having a plurality of wall wash lights whose ends face each other. Each of the plurality of wall wash lights includes a housing having two end caps facing each other, and a first LED module and a second LED module provided with end portions connected to each other inside the housing. The inner end portions of the first LED module and the second LED module are in contact with each other, and the outer end portions of the first LED module and the second LED module are respectively opposed to the opposing 2 of the housing. Abuts one end cap.

  The first LED module has a first plurality of LEDs, and the second LED module has a second plurality of LEDs. The first plurality of LEDs and the second plurality of LEDs are generated from the first plurality of LEDs and the second plurality of LEDs of the plurality of wall wash lights whose end portions face each other. Are arranged along the longitudinal axis of the housing in a spaced relationship such that the light spots form a single illumination area with uniform brightness without forming any light spot area as a transition between them Is done.

1 is an exploded view of a wall wash light according to an embodiment of the present invention. It is a front perspective view of the wall wash light shown in FIG. FIG. 2 is a rear perspective view of the wall wash light shown in FIG. 1. It is a figure which shows the pivot of the housing of a wall wash light.

  Specific embodiments of the present invention will now be described by way of example with reference to the accompanying drawings.

  1 to 3 are various views of a wall wash light 10 according to an embodiment of the present invention. The wall wash light 10 has a housing indicated by reference numeral 12 throughout the drawings. The housing may have an elongated shape. The housing 12 has an upper panel 14, a lower panel 16, a rear panel 18, and two opposing end caps 20,22. The upper panel 14, the lower panel 16, the rear panel 18, and the two opposing end caps 20, 22 together form a front opening 24 for emitting light. The upper panel 14, the lower panel 16, the rear panel 18, and the two opposing end caps 20, 22 may be made of aluminum or may be formed from any other suitable material. The housing 12 can be formed by fastening together the upper panel 14, the lower panel 16, the rear panel 18, and the two opposing end caps 20, 22 using conventional fastening means such as screws.

  According to the illustrated embodiment, the first LED (light emitting diode) module 30 and the second LED module 40 can be provided inside the housing 12 with their ends connected to each other. The inner ends of the first LED module 30 and the second LED module 40 are in contact with each other, and the outer ends of the first LED module 30 and the second LED module 40 are the two opposite ends of the housing 12. It abuts on the end caps 20 and 22, respectively. The first LED module 30 and the second LED module 40 may have an elongated shape.

  The first LED module 30 and the second LED module 40 each have a first plurality of LEDs 32 and a second plurality of LEDs 42 disposed along the longitudinal axis of the housing 12. According to the illustrated embodiment, the first LED module 30 and the second LED module 40 have a row of nine LEDs. That is, one wall wash light 10 is provided with a total of 18 LEDs. The first plurality of LEDs 32 and the second plurality of LEDs 42 may be in the form of any conventional high power LED capable of generating high power lights (high output light) of different colors.

  Such conventional high power LEDs typically have reflectors / refractors and lenses that can generate light of different beam angles and have high light efficiency. The first plurality of LEDs 32 and the second plurality of LEDs 42 are arranged at a constant interval, that is, one wall wash light 10 or a plurality of wall wash lights 10 arranged with their ends connected to each other. A plurality of light spots generated from the LED 32 and the second plurality of LEDs 42 form a single illumination area having uniform brightness without forming any light spot area as a transition between them. An interval is placed between each other.

  In the illustration and description, the first LED module 30 and the second LED module 40 each have a row of LEDs, but those skilled in the art will understand that the first LED module 30 and the second LED module 40 are each It will be appreciated that multiple rows of LEDs may be included. Furthermore, the first plurality of LEDs 32 and the second plurality of LEDs 42 are generated from the first plurality of LEDs 32 and the second plurality of LEDs 42. As long as multiple light spots are attached at regular intervals to each other so as to form a single illumination area with uniform brightness without forming any light spot area as a transition between them , Can have other possible configurations.

  Here, the mounting of the first plurality of LEDs 32 and the second plurality of LEDs 42 in the housing 12 will be described. The first plurality of LEDs 32 are attached to the first frame 34 and covered with a first transparent front cover 36. A first seal member 38 is fitted on the peripheral edge of the first transparent front cover 36. Thereby, intrusion of water or dust into the first LED module 30 can be prevented.

  Similarly, the second plurality of LEDs 42 are attached to the second frame 44 and covered with a second transparent front cover 46. A second seal member 48 is fitted on the peripheral edge of the second transparent front cover 46. Thereby, it is possible to prevent water and dust from entering the second LED module 40. The first transparent front cover 36 and the second transparent front cover 46 may be made of tempered glass with anti-fogging function, or may be formed from any other suitable material. In contrast, the first seal member 38 and the second seal member 48 may be made of rubber or may be formed from any other suitable material.

  The first plurality of LEDs 32 are electrically connected to the first printed circuit board 50, and the second plurality of LEDs 42 are electrically connected to the second printed circuit board 52. The first printed circuit board 50 and the second printed circuit board 52 are connected to the inner surface of the rear panel 18.

  A plurality of connection boxes 54 are provided to accommodate electric wires (not shown) extending from the first printed circuit board 50 and the second printed circuit board 52. A plurality of seal members 58 are respectively fitted on the peripheral edge portions of the plurality of connection boxes 54. By connecting the plug 56 having the power cord to the electric wires inside the plurality of connection boxes 54, power can be supplied to the first plurality of LEDs 32 and the second plurality of LEDs 42. By providing the heat sink 59 on the back surface of the housing 12, heat generated from the first plurality of LEDs 32 and the second plurality of LEDs 42 is radiated.

  The housing 12 is pivotally connected to two spaced apart base members 60,62. According to the illustrated embodiment, the housing 12 is pivotable about a pivot defined by two coaxial rollers 70, 72 connected to the housing 12. The two coaxial rollers 70 and 72 are rotatably accommodated in two sleeve portions 64 and 66 formed integrally with the two base members 60 and 62, respectively. The two end caps 68 restrict the axial movement of the two coaxial rollers 70 and 72 inside the sleeve portions 64 and 66.

  As shown in FIG. 4, the housing 12 includes a first position where the first plurality of LEDs 32 and the second plurality of LEDs 42 face in a direction opposite to the direction of the installation surface of the wall wash light 10, and the first plurality of LEDs. The LED 32 and the second plurality of LEDs 42 can pivot at a pivot angle between the second position and the second position facing the installation surface at 45 degrees. According to the illustrated embodiment, the maximum pivot angle is 135 degrees.

  The wall wash lighting system uses a plurality of wall wash lights 10 disclosed herein. When illuminating a wide area, a large number of wall wash lights 10 are required. These wall wash lights 10 are generally attached with their ends connected to each other. Since the end caps 20, 22 of the wall wash light 10 each have a flat panel perpendicular to the longitudinal axis of the housing 12, the wall wash light 10 can be attached with their ends connected. Accordingly, a plurality of light spots generated from the LEDs of the wall wash light 10 whose end faces each other have a single luminance having a uniform luminance without forming a light spot area as a transition portion between them. Can be formed.

  The wall wash system of the present invention can realize a bright and smooth lighting effect in a generally rectangular shape over a wide area. As can be seen, the high uniformity of lighting in this wallwash system is the verticality of large buildings so that it does not form unevenly attenuated light, i.e. unsightly lighting areas where scalloped shades are observed in the light. This is particularly useful when highlighting walls or illuminating road signs and highway signs.

  The wall wash light 10 of the lighting system of the present invention has an aesthetically pleasing appearance and can be easily blended into the surrounding environment.

  Although several preferred embodiments of the present invention have been shown and described in detail, it should be noted that various changes and modifications can be made without departing from the scope of the utility model registration claims of the present invention.

Claims (11)

A housing having two opposite end caps;
A first end is provided in the housing, with the ends connected to each other such that the inner ends abut against each other and the outer ends abut against the two opposing end caps of the housing. An LED module and a second LED module;
The first LED module has a first plurality of LEDs, the second LED module has a second plurality of LEDs;
In the first plurality of LEDs and the second plurality of LEDs, a plurality of light spots generated from the first plurality of LEDs and the second plurality of LEDs are light as a transition portion between them. A wall wash light arranged along the longitudinal axis of the housing in a spaced relationship so as to form a single illumination region having uniform brightness without forming any point regions. The wall wash light according to claim 1,
The first plurality of LEDs are provided on a first frame and covered by a first transparent front cover;
The second plurality of LEDs are provided on a second frame and covered with a second transparent front cover. The wall wash light according to claim 1,
The first plurality of LEDs are electrically connected to a first printed circuit board;
The second plurality of LEDs are electrically connected to a second printed circuit board. The wall wash light according to claim 1,
The housing further includes an upper panel, a lower panel, and a rear panel;
The upper panel, the lower panel, and the rear panel, together with the two opposing end caps, a front opening for emitting light from the first plurality of LEDs and the second plurality of LEDs Wall wash light, characterized by The wall wash light according to claim 1,
Each of the two opposing end caps has a flat panel perpendicular to the longitudinal axis of the housing. The wall wash light according to claim 1,
The housing is pivotally connected to two spaced apart base members and pivotable about a pivot axis defined by two coaxial rollers;
The two coaxial rollers are connected to the housing, and are rotatably accommodated in two sleeve portions integrally formed with the two base members, respectively. The wall wash light according to claim 1,
The housing includes a first position where the first plurality of LEDs and the second plurality of LEDs face in a direction opposite to an installation surface direction of the wall wash light, and the first plurality of LEDs and A wall wash light, wherein the second plurality of LEDs are pivotable at a pivot angle between the second plurality of LEDs facing the installation surface at a predetermined angle. The wall wash light according to claim 7,
The wall wash light characterized in that the pivot angle is a maximum of 135 degrees. The wall wash light according to claim 1,
The first LED module and the second LED module have nine LEDs each. The wall wash light according to claim 1,
The wall wash light, wherein the housing has an elongated shape. A housing having two opposing end caps, and an inner end of the housing such that the inner end abuts each other and the outer end abuts the two opposing end caps of the housing. Each having a first LED module and a second LED module provided connected to each other, each having a plurality of wall wash lights facing each other;
The first LED module has a first plurality of LEDs, the second LED module has a second plurality of LEDs;
In the first plurality of LEDs and the second plurality of LEDs, a plurality of light spots generated from the first plurality of LEDs and the second plurality of LEDs are light as a transition portion between them. An illumination system, wherein the illumination system is arranged along the longitudinal axis of the housing in a spaced relationship so as to form a single illumination region with uniform brightness without forming any point regions.

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