JP2009283405A - Fluorescent light emitting tube and luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire for enhancing the luminaire efficiency by effectively using lamp light emitted from adjacent lamp tubes. <P>SOLUTION: A reflecting plate 20 is provided between adjacent light emitting tubes 11. Lamp light LB emitted from one light emitting tube 11 toward the light emitting tube 11 adjacent thereto is thus reflected to a desired direction by the reflecting plate 20. Accordingly, the lamp light LB is effectively used to improve the luminaire efficiency. Since the adjacent light emitting tube 11 is never exposed to the lamp light LB emitted from the light emitting tube 11, a uniformly irradiated area without glare is obtained, and the temperature rise of the light emitting tubes 11 is suppressed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fluorescent lamp in which arc tubes are provided at a predetermined interval on the same plane, and a lighting fixture to which the fluorescent lamp can be attached.

As shown in FIG. 7, a spiral fluorescent lamp 100 used in a conventional lighting fixture has a discharge path composed of a series of bent glass tubes 101 swirled in a substantially flat plane around a tube central portion 102. It has a double spiral shape. A base 104 is provided at each of both ends that are substantially opposed to each other, that is, the tube ends 103 a and 103 b, and a pair of lamp pins 105 are provided so as to protrude from each base 104. Further, a bridge 106 is provided between the pipe end portions 103a and 103b (see, for example, Patent Document 1).
JP 2007-273336 A (FIG. 2)

  However, when there are adjacent tubes as in the fluorescent lamp 100 described above, the lamp light irradiated from the bent glass tube 101 hits the adjacent bent glass tube 101, and therefore there is lamp light that is not used effectively, and the instrument efficiency is poor. There was a problem. Further, the lamp light hitting the adjacent bent glass tubes 101 has a problem that it is dazzling in order to increase the luminance. Furthermore, there is a problem that the temperature of the bent glass tube 101 rises due to the lamp light from the adjacent side.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can increase the efficiency of an apparatus by effectively using lamp light emitted from adjacent lamp tubes. To do.

  The fluorescent lamp of the present invention is a fluorescent lamp in which one or a plurality of arc tubes are provided at a predetermined interval on the same plane, and has a configuration in which a reflector is provided between the adjacent arc tubes. Yes.

  With this configuration, since the reflecting plate is provided between the adjacent arc tubes, the lamp light irradiated from the arc tube and directed to the adjacent arc tube can be reflected in a desired direction by the reflecting plate. As a result, the lamp light is effectively used, and the instrument efficiency is improved. Further, since the lamp light irradiated from the arc tube does not hit the adjacent arc tube, it is not dazzling and a uniform irradiation surface can be obtained, and the temperature rise of the arc tube can be suppressed.

  In addition, the fluorescent lamp of the present invention has a configuration in which the reflecting plate is in contact with the arc tube.

  With this configuration, since the reflectors fix the arc tubes together, the strength of the arc tube is increased.

  Furthermore, the lighting fixture of the present invention is a lighting fixture equipped with the fluorescent lamp according to claim 1, wherein the reflecting plate is in contact with a fixture main body that supports the fluorescent lamp. .

  With this configuration, since the reflecting plate is provided between the adjacent arc tubes, the lamp light irradiated from the arc tube and directed to the adjacent arc tube can be reflected in a desired direction by the reflecting plate. Thereby, the lamp light is effectively used, and the efficiency of the appliance is improved. In addition, since the reflector provided between the arc tubes adjacent to the fluorescent lamp mounted on the lighting fixture is in contact with the fixture main body of the lighting fixture, the heat of the arc tube is transmitted to the fixture main body, The temperature can be lowered.

  In the present invention, since the reflection plate is provided between the adjacent arc tubes, the lamp light irradiated from the arc tube and directed to the adjacent arc tube can be reflected in a desired direction by the reflection plate. As a result, the lamp light is effectively used, and the instrument efficiency is improved. In addition, since the lamp light emitted from the arc tube does not hit the adjacent arc tube, it is not dazzling, a uniform illumination surface can be obtained, and a lighting fixture having an effect of suppressing the temperature rise of the arc tube is provided. Is something that can be done.

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
FIG. 1 is a plan view showing a fluorescent lamp according to an embodiment of the present invention.

  As shown in FIG. 1, a fluorescent lamp 10 used in a fluorescent lamp 10 and a lighting fixture 30 according to an embodiment of the present invention has a single arc tube 11 spiraling on a substantially single plane centering on a tube central portion 12. It has a double spiral shape swirled in a shape. Therefore, the arc tube 11 adjacent at a predetermined interval exists inside or outside the arc tube 11. A base 14 is provided at each of both end portions 13 a and 13 b located substantially opposite to each other of the arc tube 11, and a pair of lamp pins 15 and 15 protrude from each base 14.

  A reflector 20 is provided between the adjacent arc tubes 11. The size of the reflecting plate 20 may be at least as long as it covers a range connecting the upper and lower contacts between the center of one arc tube 11 and the outer peripheral surface of the other arc tube 11 adjacent thereto.

  As mentioned above, according to the fluorescent lamp 10 concerning embodiment of this invention demonstrated, since the reflecting plate 20 was provided between the adjacent arc tubes 11, the lamp light irradiated from the arc tube 11 and heading to the adjacent arc tube 11 is provided. Can be reflected by the reflecting plate 20 in a desired direction. As a result, the lamp light is effectively used, and the instrument efficiency is improved. Further, since the lamp light emitted from the arc tube 11 does not hit the adjacent arc tube 11, it is not dazzling and a uniform irradiation surface can be obtained, and the temperature rise of the arc tube 11 can be suppressed.

(Example-1)
As shown in FIG. 2, a flat reflector 21 is provided between the adjacent arc tubes 11a and 11b. The lamp light LB emitted from one arc tube 11a strikes the reflecting plate 21 and is reflected in the vertical direction as reflected light. Therefore, the lamp light LB does not strike the adjacent arc tube 11b.
Thereby, as mentioned above, it is not dazzling and a uniform irradiation surface can be obtained, and the temperature rise of the arc tube 11 can be suppressed.

(Example-2)
As shown in FIG. 3, a reflector 22 having an elliptical cross section is provided between adjacent arc tubes 11a and 11b. The lamp light LB emitted from one arc tube 11a strikes the reflector plate 22 and is reflected as reflected light in the vertical direction, so that the lamp light LB does not strike the adjacent arc tube 11b.
Thereby, the same effect as Example-1 can be acquired. Furthermore, the direction of the reflected light can be set by changing the elliptical shape.

(Example-3)
As shown in FIG. 4, a rhomboid reflector 23 is provided between the adjacent arc tubes 11a and 11b. The lamp light LB emitted from one arc tube 11a strikes the reflecting plate 23 and is reflected in the vertical direction as reflected light, so that the lamp light LB does not strike the adjacent arc tube 11b.
Thereby, the same effect as Example-1 can be acquired. Furthermore, the direction of the reflected light can be set by changing the inclination angle of the surfaces constituting the rhombus.

(Example-4)
As shown in FIG. 5, a reflecting plate 24 having a hexagonal cross section is provided between adjacent arc tubes 11a and 11b, and left and right end portions 24a and 24b of the reflecting plate 24 are respectively arc tubes. 11a and 11b. The lamp light LB emitted from one arc tube 11a strikes the reflector plate 22 and is reflected as reflected light in the vertical direction, so that the lamp light LB does not strike the adjacent arc tube 11b.
Thereby, the same effect as Example-1 can be acquired. Furthermore, since the reflecting plate 24 fixes the arc tubes 11a and 11b, the strength of the arc tube 11 is increased, and a plate bridge (see FIG. 7) can be omitted as provided conventionally.

(Example-5)
As shown in FIG. 6, a reflecting plate 25 having a hexagonal cross section is provided between adjacent arc tubes 11a and 11b, and left and right end portions 25a and 25b of the reflecting plate 25 are respectively arc tubes. 11a and 11b. Further, the reflecting plate 25 is provided with a support portion 25 c, and the support portion 25 c is attached to the instrument body 31.
Thereby, while being able to acquire the same effect as Example 4, since the support part 25c of the reflecting plate 25 is contact | abutting to the fixture main body 31 of the lighting fixture 30, the heat | fever of the arc_tube | light_emitting_tube 11 is the fixture main body 31. The temperature of the arc tube 11 can be lowered. Moreover, since the temperature of the coldest spot can be lowered, the efficiency of the fluorescent lamp 10 can be improved.

In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, as the fluorescent lamp 10 used in the fluorescent lamp 10 and the lighting fixture 30 in which the luminous tubes 11 are provided at a predetermined interval on the same plane, the single luminous tube 11 is the tube central portion 12. However, the present invention is not limited to this, and a fluorescent lamp having a circular shape arranged concentrically inside and outside, or a straight pipe is not limited to this. It can also be applied to those arranged in parallel at regular intervals.

The top view which shows the fluorescent lamp concerning embodiment of this invention Sectional drawing which shows the reflecting plate in 1st Example Sectional drawing which shows the reflecting plate in 2nd Example Sectional drawing which shows the reflecting plate in 3rd Example Sectional drawing which shows the reflecting plate in 4th Example Sectional drawing which shows the reflecting plate in 5th Example (A) is a top view which shows the conventional fluorescent lamp, (B) is sectional drawing.

Explanation of symbols

10 fluorescent lamp 11 arc tube 20 reflector 30 lighting fixture 31 fixture

Claims (3)

A fluorescent lamp in which one or a plurality of arc tubes are provided at a predetermined interval on the same plane;
A fluorescent lamp characterized in that a reflector is provided between adjacent arc tubes.   The fluorescent lamp according to claim 1, wherein the reflector is in contact with the arc tube. A lighting fixture equipped with the fluorescent lamp according to claim 1,
The lighting fixture, wherein the reflector is in contact with a fixture main body that supports the fluorescent lamp.

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