JP2010272496A - Fluorescent light radiation method of led fluorescent illumination apparatus, and led fluorescent illumination apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the reflected light inside a tubular body and the radiation range of illumination light from the tubular body. <P>SOLUTION: An LED fluorescent illumination apparatus 7 can provide LED illumination instead of a straight tube fluorescent lamp and divides the inside of the tubular body into an LED lighting illumination room and a power source room with an inner wall 6. In the LED fluorescent illumination apparatus, the tubular body 1 is composed of a first tubular body 2 made of a translucency synthetic resin or the like and a second tubular body 3 as a metal product made of a metal having a circular arc in a transverse section view, an inner wall having a horizontal plane and a pair of inclined planes is located inside the tubular body with the horizontal plane positioned closer to the second tubular body side than the tubular body center, LED light-emitting devices and phosphor are mounted on the upper surface of the horizontal plane of the inner wall, a power source circuit is mounted on the lower surface of the horizontal plane, light guide diffusers are mounted on the inclined planes, fluorescent light is radiated from almost all the surface of the inner wall to the first tubular body, and reflection light from the first tubular body is diffusely reflected at an LED light-emitting illumination room, for a radiation range to be expanded to an installation surface side. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a technique for converting fluorescent lamp illumination into LED illumination as an eco measure for indoor lighting devices. More specifically, the present invention relates to an LED fluorescent lighting device that is compatible with a straight tube fluorescent lamp for realizing LED lighting by using an existing straight tube fluorescent lamp lighting facility.

Technical background

  Referring to FIG. 13, as an LED fluorescent lighting apparatus compatible with a straight tube fluorescent lamp, the inside of the tube body 100 is vertically divided into two via an inner wall (base support plate) 101, and the upper part is an LED light emitting lighting chamber A. The lower part is a power supply chamber B, and a plurality of LED light emitting devices 102 are linearly provided on the upper surface of the inner wall (base support plate) 101, and the power supply device 103 is provided on the lower surface of the inner wall (base support plate) 101. It is known.

JP-A-8-162676 ACT 6-54103

Problems to be solved by the invention

  In the known art, see FIG. Since the LED light emitting illumination chamber A is approximately half of the tube 100, the emission range of the illumination light q is limited to the lower half of the tube 100, and the straight tube LED illumination fluorescence installed on the ceiling surface A. In the lamp, since there is no illumination light beam toward the ceiling surface, there is no illumination by the reflected light beam on the ceiling surface i. Therefore, although the partial range T in the room is strongly lit, there is a problem that the range S in which the illumination is weak exists and the lighting in a part of the room is insufficient.

  In order to solve the above-mentioned problems of the known technology, the present invention increases the illumination light irradiation range from the tubular body and adds reflected light from the luminaire mounting surface (ceiling, side walls, etc.) to the room illumination. Thus, it is an object to illuminate the entire room.

Means for solving the problem

  The first invention of the present application is an LED fluorescent lighting device characterized in that, in an LED light-emitting illumination room, an illumination light beam reflected by an inner surface of a tubular body is re-reflected and diffusely reflected by an inner wall having a horizontal surface and a pair of inclined surfaces. Provided is a fluorescent light irradiation method.

  The second invention of the present application is an LED fluorescent illumination device that can illuminate LED instead of a straight tube fluorescent lamp, and divides the inside of the tubular body into an LED light emitting illumination chamber and a power supply chamber by an inner wall, A first tubular body portion such as a translucent synthetic resin, which is a resin body, a glass-based product, etc., which is a tubular body obtained by cutting away the bottom surface of the tubular body in cross section, and a metallic product, such as a synthetic resin, etc. A tubular body is constituted by a metal second tubular body portion having a circular arc shape in cross section corresponding to a cut portion of one tubular body portion, and an inner wall having a horizontal surface and a pair of inclined surfaces is formed in the tubular body, Both ends are connected to the edge of the metal second tube portion so that the inner wall and the metal second tube portion are thermally conductively continuous, and the LED light emitting device and the fluorescent light are placed on the upper surface of the inner wall in a horizontal plane. Body, power circuit on the lower surface of the horizontal surface, light guide diffuser on the inclined surface, the first fluorescent light from almost the entire inner wall Provides an LED fluorescent illumination device, characterized in that the irradiation range by diffuse reflection in the LED lighting chamber by reflection rays from firing and the first pipe body portion toward the body portion is expanded to the mounting surface side.

Operation of the Invention In the LED light-emitting illumination room, the present invention diffuses the emitted light between the inner surface and the inner wall of the tube body and expands the light irradiation range to the fixture side (ceiling surface, wall surface, etc.). , Increasing the reflected light from the fixture side (ceiling surface, wall surface, etc.).

The invention's effect

Irradiated light from the entire circumferential surface of the first tubular body can be made uniform by irregular reflection of the emitted light in the LED light emitting illumination room.
By increasing the amount of reflected light from the fixture side (ceiling surface, wall surface, etc.), the interior lighting effect on the fixture side (ceiling surface, wall surface, etc.) and the opposing surface (floor surface, work surface, etc.) can be enhanced. .

The longitudinal cross-sectional view of the LED fluorescent lighting apparatus which shows the Example of this invention. Similarly a cross-sectional view. The outline of an internal structure is similarly shown, a figure is a perspective view of the inner wall shown with a LED light-emitting device and a fluorescent substance, b figure is a perspective view of a fluorescent substance and a LED light-emitting device. Plane surface of LED fluorescent lighting device Similarly front view. Similarly side view. The bottom view of a 2nd pipe body part. The longitudinal cross-sectional view of a 2nd pipe body part and an inner wall. The partial cross section side view of the light guide diffuser shown with an inner wall. In the operational diagram of the present invention, illumination rays Q1, Q2, Q3, Q3 'are shown. Action | operation explanatory drawing in the Example of sectional view 140 degree | times of a 2nd pipe body part. Action | operation explanatory drawing in the Example of sectional view 90 degree | times of a 2nd pipe body part. Longitudinal sectional view of a known LED fluorescent lighting device Similarly a cross-sectional view.

With reference to FIG. 1 thru | or FIG. 9, the LED fluorescent lighting apparatus which shows the Example of this invention is demonstrated.
A cross section of a first tubular body portion 2 in the shape of a partially excised tubular body obtained by excising the bottom surface side of a tubular body in a straight tube fluorescent lighting device, and a metal molded product corresponding to the excised portion of the first tubular body portion 2 The tubular body 1 is constituted by the arcuate second tubular body portion 3.

  An inner wall 6 of a metal molded product (in the embodiment, an aluminum die-cut material) comprising a central horizontal plane (base support plate) 4 and a pair of inclined surfaces 5 and 5 is provided. It is located inside, and its end edge is fixed to the end of the second tube part 3 and integrated.

  The inner wall 6 divides the inside of the tube 1 into an upper LED light emitting illumination chamber A and a lower power supply chamber B.

  On the upper surface of the central horizontal surface 4 of the inner wall 6, a large number of LED light emitting devices 7 and a plurality of phosphors 8 are arranged in a row in the longitudinal direction of the tube body at appropriate intervals. The LED light-emitting device 7 is composed of three LED light-emitting elements 7a mounted on the base 7b.

  A light guide diffuser 10 is attached to the upper surfaces of the inclined surfaces 5 and 5.

  A power supply circuit 9 such as an AC / DC converter and an overcurrent blocking circuit is provided on the lower surface of the horizontal surface 4 of the inner wall 6.

  Referring to FIG. 9, the light guide diffuser 10 is bonded to the inclined surface 5 of the inner wall 6, and includes a lower reflective heat shield layer 11, an intermediate light guide layer 12, and an upper light diffuser layer 13. Layer structure.

  The reflective heat shield layer 11 was configured by bonding an aluminum foil to the upper surface of the inclined surface 5.

  The light guide layer 12 has an inner end face on the tube center side facing the LED light emitting device 7 and an outer end face facing the second tube portion 3 side of the first tube portion 2 of the tube 1.

  The light guiding layer 12 induces light reception at the inner end face to the end face, and causes light transmission in the surface direction by a fiber-like (fibrous) processed groove by processing an infinite number of uneven grooves on the surface. Thus, a part of the light received at the inner end face is guided to the entire surface of the light guiding layer 12.

  The light diffusing layer 13 is made of a translucent diffusing material, but diffuses incident light rays toward the inner surface of the first tubular portion 2 by irregular reflection by making the outer end surface a rough surface structure instead of a smooth surface. is there.

  Both ends of the tube body are equipped with support terminal portions 21 via rings 20 and can be attached to sockets 31 of an existing fluorescent lamp attachment device 30. The support terminal portion 21 is formed with a terminal 23 and a through hole 22 communicating with the power supply chamber B.

  In addition, the terminal 23 was made to function as a power supply connection member and a support member only about one support terminal part 21, and the terminal 23 was made to function only as a support member about the other support terminal part 21. By maintaining the function of the existing fluorescent lamp mounting device as it is, it becomes possible to use conventional fluorescent lamps for consumers, and thus has an effect of promoting conversion to LED illumination.

  A fin 25 is formed on the outer surface of the second tube portion 3 in the vicinity of the connection portion with the first tube portion 2, and an opening 23 is formed in the center portion.

  The second tube part 3 and the inner wall 6 are integrated in a heat conductive manner to enhance the cooling effect on the LED base by heat conduction to the metal tube part, and the outside air due to the presence of the through hole 22 and the opening 23. The power supply room B is cooled by the convection effect.

  Referring to FIG. 10, the first tubular part 2 is a translucent synthetic resin product or the like in the range of 240 degrees of the tubular body 1, and the second tubular part 3 is in the range of 120 degrees of the tubular body 1, The first tube portion 2 is made of a light-transmitting synthetic resin product, so that the irradiation light [first of the LED light-emitting device 7 and the phosphor 8 of the light source is within a range of 240 degrees of the tube 1. The irradiation light beam Q1 that directly transmits light through the tubular body portion 2 and the irradiation light beam Q2 that transmits light through the first tubular body portion after irregular reflection in the first tubular body portion 2 are irradiated.

  Furthermore, due to the presence of the light guiding layer 12, the irradiation light beam Q3 closer to the fixture side (ceiling surface, wall surface, etc.) than the edge radiation direction of the first tubular body portion 2 is present, so that 240 of the tubular body 1 described above. There are radiation rays that exceed the range of degrees.

  In the embodiment, as described above, the second tubular body portion 3 is set to 1/3 of the tubular body as the range of 120 degrees of the tubular body 1, but the second tubular body portion 3 is within the range of 120 degrees. It is not limited and may be increased or decreased with respect to the range of 120 degrees.

  That is, even if the range of the second tubular portion 3 is set to a range of 140 degrees of the tubular body 1, due to the presence of the light guiding layer 12, the mounting instrument side (ceiling surface, wall surface) from the edge radiation direction of the first tubular portion 2. Etc.) Due to the presence of the irradiating light beam, there is an illumination light beam Q3 ′ reflected from the fixture side (ceiling surface, wall surface, etc.), and the effects of the present invention can be achieved (see FIG. 11).

  Moreover, even if the range of the 2nd pipe body part 3 is made into the range of 90 degree | times of the pipe body 1, the power supply room B can ensure sufficient space capacity to cool the LED light-emitting device 7 and the power supply circuit 9 ( (See FIG. 12).

  Next, the operation of the present invention will be described in detail.

  An LED beam is generated from the LED light emitting device 7 provided on the upper surface of the central horizontal surface 4 of the inner wall 6.

  The LED light passes through the phosphor 8 provided above the LED light to generate a fluorescent light as a secondary light.

  The fluorescent light is irradiated toward the first tube 2.

  About 80% of the irradiated light passes through the first tube 2 and is irradiated outside the first tube 2 (irradiated light Q1).

  About 20% of the irradiated light is reflected by the inner peripheral surface of the first tubular body 2 and diffusely reflected by the light diffusion layer 13 on the surface of the inner wall 6.

  Further, the fluorescent light is irradiated toward the first tubular body 2 from the entire surface of the light diffusion layer 13 through the light guiding layer 12.

  Therefore, the irradiation light beam reflected by the inner peripheral surface of the first tubular body 2 and the irradiation light beam from the light guiding layer 12 are irradiated toward the first tubular body 2.

  Further, there is an irradiation light beam directed from the outer end surface of the light guide layer 12 toward the first tubular body 2.

  Due to the presence of the above-mentioned irradiation light beam Q2 due to the irregular reflection of the emitted light beam in the LED light emitting illumination room, the “light glare” of LED light emission is eliminated by making the irradiation light beam from the entire peripheral surface of the first tubular body uniform.

  The range of light irradiation to the fixture side (ceiling surface, wall surface, etc.) is expanded, and the reflected light from the fixture side (ceiling surface, wall surface, etc.) is increased.

  Thus, it provides a “soft light source” that illuminates the workspace almost uniformly.

  The present invention is particularly effective as a means for providing uniform illumination over a wide space like a hydroponic light source.

  The invention of the present application is effective as an eco measure for indoor lighting devices by facilitating conversion of fluorescent lighting to LED lighting, and an industry related to LED fluorescent lighting by promoting the use of LED fluorescent lighting devices. It contributes to the development of

DESCRIPTION OF SYMBOLS 1 Tube 2 1st tube part 3 2nd tube part 4 Horizontal surface 5 Inclined surface 6 Inner wall 7 LED light-emitting device 8 Phosphor 10 Light guide diffuser

Claims (4)

In the LED fluorescent lighting device, LED lighting is possible instead of the straight tube type fluorescent lamp, and the inside of the tubular body is divided into the LED light emitting lighting chamber and the power source chamber by the inner wall,
In the LED light-emitting illumination room, the inner wall having a horizontal surface and a pair of inclined surfaces re-reflects the emitted light reflected from the inner surface of the tube, diffusely reflects the fluorescent light as the secondary light of the LED, and then goes out of the tube. Irradiating a fluorescent light irradiation method for an LED fluorescent lighting device. LED fluorescent lighting device capable of LED lighting instead of a straight tube fluorescent lamp, with the inner wall divided into an LED light-emitting lighting room and a power supply room on the inner wall, translucent synthetic resin, glass products, etc. And a first tubular body portion such as a translucent synthetic resin, which is a tubular body obtained by excising the bottom surface of the tubular body in cross section.
It is a metal product, and the second tube body made of metal having an arc shape in cross section corresponding to the cut portion of the first tube section such as the translucent synthetic resin,
Make up the tube,
In the tube,
An inner wall having a horizontal plane and a pair of inclined surfaces, the horizontal plane is connected to the edge of the metal second tubular body at both ends, and the inner wall and the metal second tubular body are thermally conductive. Continue,
Equipped with LED light emitting device and phosphor on the upper surface of the horizontal surface of the inner wall, equipped with a power circuit on the lower surface of the horizontal surface, equipped with a light guide diffuser on the inclined surface,
An LED characterized in that a fluorescent light beam is emitted from substantially the entire inner wall toward the first tube part and is diffusely reflected in the LED light-emitting illumination room by a reflected light beam from the first tube part to expand the irradiation range toward the mounting surface. Fluorescent lighting device.   3. The LED fluorescent lighting device according to claim 2, wherein the light guide diffuser has a multilayer structure including a reflective heat shield layer, a light guide layer, and a light diffusion layer.   The LED fluorescent lighting device according to claim 2 or 3, wherein the range of the metal second tube portion is set to 140 to 90 degrees in a cross-sectional view.

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