JP2008282743A - Illumination lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve continuity of illumination in a fluorescent lamp or the like with lamp pins on a side face of an arc tube or the like and arranged in series. <P>SOLUTION: At least a part of an end face 13a of the arc tube 11a is inclined to a cylinder axis 14a of the tube 11a, the fluorescent lamp is formed in a shape to complementarily compensating a gap between end faces 13a of facing two adjoining arc tubes 11a, which are at least partially overlapped and faced to be viewed from a perpendicular direction to a long-side direction of the arc tube 11a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an illumination lamp having a lamp pin on the side of a lamp tube, and more particularly to its shape.

As described in Patent Document 1, a so-called seamless lamp ("seamless line" is a trademark) has been proposed in which lamp pins are provided not on both end faces of the lamp tube but on the side faces. Thereby, when arranging a plurality of illumination lamps in series, non-light emitting portions such as a lamp base and a lamp socket of the illumination lamp can be removed as much as possible, and uniform illumination can be performed while maintaining continuity of illumination.
JP 2001-210135 A

  However, in a seamless lamp using a conventional cylindrical lamp tube, when a plurality of illumination lamps are arranged in series, the opposing ends of adjacent lamp tubes are completely brought into close contact with each other for convenience in detaching the illumination lamp. There is a problem that a slight gap remains between the adjacent lamp tubes and a dark portion is generated.

  The present invention has been made in view of the above problems, and in order to improve the continuity of illumination, when arranging a plurality of seamless lamps in series, illumination that eliminates dark portions caused by slight gaps between adjacent lamp tubes as much as possible. The purpose is to provide a lamp.

  An illumination lamp according to the present invention is an illumination lamp arranged in series with a lamp pin on a side surface of a lamp tube. At least one end surface of the lamp tube is inclined with respect to a cylindrical axis of the lamp tube, and two adjacent lamps are arranged. The opposite end faces of the lamp tube are at least partially overlapped when viewed from the direction perpendicular to the length direction of the lamp tube, and are formed in a shape that complementarily complements the gap between the opposite end faces. It is a feature.

  Further, in the illumination lamp according to the present invention, it is desirable that both end faces of the lamp tube are planes parallel to each other. In this case, both end faces may be perpendicular or inclined with respect to a plane including the cylindrical axis of the lamp tube and parallel to the lamp pin. That is, both end faces are “perpendicular” to a plane including the cylindrical axis of the lamp tube and parallel to the lamp pin. The illumination lamp according to the present invention is oriented in a direction perpendicular to both the cylindrical axis of the lamp tube and the lamp pin. Means a lamp that looks like a parallelogram when viewed from above, and `` tilted '' means that it is perpendicular to the cylinder axis of the lamp tube and viewed from one direction other than the above. It means an illumination lamp in which the shape of the lamp tube looks like a parallelogram.

  Alternatively, in the illumination lamp according to the present invention, it is desirable that both end faces of the lamp tube are planes symmetrical to each other with respect to a plane perpendicular to the length direction of the lamp tube and passing through the center of the lamp tube. In this case, both end faces may be perpendicular or inclined with respect to a plane including the cylindrical axis of the lamp tube and parallel to the lamp pin. That is, both end faces are “perpendicular” to a plane including the cylindrical axis of the lamp tube and parallel to the lamp pin. The illumination lamp according to the present invention is oriented in a direction perpendicular to both the cylindrical axis of the lamp tube and the lamp pin. Means an illumination lamp that looks like an isosceles trapezoid when viewed from above, and `` tilted '' means that it is perpendicular to the cylindrical axis of the lamp tube and viewed from one direction other than the above. It means an illumination lamp in which the shape of the lamp tube looks like an isosceles trapezoid.

  According to the illumination lamp of the present invention, when arranging a plurality of seamless lamps in series, the end faces of the lamp tubes are in the length direction of the lamp tubes without completely adhering the opposing ends of the adjacent lamp tubes. On the other hand, when viewed from the vertical direction, it is formed in a shape that complements the gap between the opposing end faces at least partially overlapping, so that the continuity of illumination can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
First, a first embodiment of the present invention will be described. FIG. 1 is a schematic side view of a fluorescent lamp according to a first embodiment of the present invention, and FIGS. 2, 3, and 4 are a top view, a bottom view, and a front view, respectively, as described above.

  As shown in FIG. 1, the fluorescent lamp 10a according to the first embodiment of the present invention has two lamp caps 15a corresponding to the G5 cap defined by JIS on the side surface 12a of the fluorescent tube 11a. Two lamp pins 17a are provided on the lower surface of the base body 16a of 15a. Both end surfaces 13a of the fluorescent tube 11a are planes parallel to each other, the angle θ formed with the cylindrical axis 14a of the fluorescent tube 11a is 45 °, and perpendicular to the plane including the cylindrical axis 14a and parallel to the lamp pin 17a. It is formed in the shape which becomes.

  Then, in the fluorescent lamp 10a according to the present embodiment configured as described above, two adjacent fluorescent lights with the direction of arrow P perpendicular to the cylindrical axis 14a and parallel to the lamp pin 17a as the main illumination direction as shown in FIG. A plurality of pipes 11a are arranged in series so that the opposing end faces 13a are parallel to each other. Thereby, since the end surface 13a of the fluorescent tube 11a complementarily complements the gap between the opposing end surfaces 13a of the adjacent fluorescent tubes 11a, the continuity of illumination in the direction of the arrow P can be improved.

(Embodiment 2)
Next, a second embodiment of the present invention will be described. The fluorescent lamps 10b and 10c in this embodiment are obtained by changing the fluorescent tube 11a in the first embodiment to fluorescent tubes 11b and 11c, respectively, as shown in FIG. 6, and other configurations are the same as those in the first embodiment. It is the same. The fluorescent tubes 11b and 11c are planes whose opposite end faces 13b and 13c are perpendicular to the length direction of the fluorescent tubes 11b and 11c and are plane-symmetric with respect to a plane passing through the centers of the fluorescent tubes 11b and 11c. The angle θ formed by 14b and 14c is 45 °, and is formed in a shape that includes the cylindrical shafts 14b and 14c and is perpendicular to a plane parallel to the lamp pins 17b and 17c. The fluorescent lamp 10b has a base 15b attached to the longest bus on the side surface 12b of the fluorescent tube 11b. The fluorescent lamp 10c has a base 15c on the shortest bus on the side 12c of the fluorescent tube 11c. It is what is attached. In addition, description about the element equivalent to 1st embodiment shown in FIG. 1 is abbreviate | omitted unless there is particular need.

  Then, in the fluorescent lamps 10b and 10c according to the present embodiment configured as described above, as shown in FIG. 7, the direction of the arrow P is the main illumination direction, and the end faces 13b facing the two adjacent fluorescent tubes 11b and 11c are opposed to each other. , 13c are arranged in series alternately so that they are parallel to each other, the same effect as in the first embodiment can be obtained. Furthermore, this embodiment has an advantage in desorption work compared to the first embodiment. That is, in the case of the first embodiment in which a plurality of fluorescent lamps 10a are arranged in series as shown in FIG. 5, when a certain fluorescent lamp 10a is removed in a direction parallel to the lamp pin, one of the two adjacent fluorescent lamps 10a is removed. Therefore, the fluorescent lamp 10a having the above-mentioned trouble must be removed first. Eventually, this is repeated, and finally, even the fluorescent lamp 10a disposed at the end of the entire fluorescent lamp 10a is removed. In some cases, the number of fluorescent lamps to be removed becomes very large. However, in the case of this embodiment in which a plurality of fluorescent lamps 10b and 10c are alternately arranged in series as shown in FIG. This can be done by simply removing the two fluorescent lamps 10c.

(Embodiment 3)
Next, a third embodiment of the present invention will be described. As shown in FIG. 8, in the fluorescent lamps 10d and 10e in the present embodiment, one end surfaces 13c and 13b of the fluorescent tubes 11c and 11b in the second embodiment are perpendicular to the cylindrical axes 14c and 14b of the fluorescent tubes 11c and 11b, respectively. The flat surfaces 13d ′ and 13e ′ are changed, and other configurations are the same as those of the second embodiment. In addition, description about the element equivalent to 2nd embodiment shown in FIG. 6 is abbreviate | omitted unless there is particular need.

  Then, the fluorescent lamps 10d and 10e according to the present embodiment configured as described above, for example, as shown in FIG. 9, a plurality of fluorescent lamps 10b and 10c are alternately arranged in series. By arranging the fluorescent lamp 10d and / or the fluorescent lamp 10e at both ends so that the end faces of the adjacent fluorescent lamps are parallel to each other, it is possible to obtain the same effect as that of the first embodiment, and further, The both ends of the entire lamp can be cleaned and can be used efficiently in space.

  In the first embodiment, the angle θ formed by the both end faces 13a of the fluorescent tube 11a and the cylindrical shaft 14a is set to 45 °. However, the fluorescent lamp 10a according to the present invention is not necessarily limited to the above angle. Absent. In addition, the fluorescent tube 11a is set so that both end faces 13a of the fluorescent tube 11a are perpendicular to a plane including the cylindrical shaft 14a and parallel to the lamp pin 17a. The shape is not limited to the above. That is, it is possible to attach the base 15a to a position arbitrarily rotated around the cylindrical axis 14a of the fluorescent tube 11a from the position shown in the fluorescent lamp 10a, thereby arbitrarily setting the main irradiation direction of the fluorescent lamp 10a. Can do. For example, as shown in FIG. 10, in the case of the fluorescent lamp 20 attached at a position where the base 15a is rotated 45 ° clockwise around the cylindrical axis 14a from the position indicated by the fluorescent lamp 10a, the cylindrical axis 24 of the fluorescent tube 21 is provided. The continuity of illumination in the direction of arrow Q in FIG. 10 perpendicular to the lamp pin 26 can be improved. Moreover, the surface which comprises the both end surfaces 13a of the fluorescent tube 10a is not necessarily limited to a single plane, For example, you may be comprised by the curved surface, several planes, or those aggregates. Moreover, although the kind of lamp | ramp was set as a fluorescent lamp, the illumination lamp by this invention is not necessarily limited to this, For example, you may apply to an incandescent lamp. Further, the lamp cap attached to the lamp is set to correspond to the G5 cap defined by JIS, but is not necessarily limited thereto. On the other hand, the same applies to the second and third embodiments.

1 is a schematic side view of a fluorescent lamp according to a first embodiment of the present invention. 1 is a schematic top view of a fluorescent lamp according to a first embodiment of the present invention. 1 is a schematic bottom view of a fluorescent lamp according to a first embodiment of the present invention. 1 is a schematic front view of a fluorescent lamp according to a first embodiment of the present invention. Schematic side view when a plurality of the fluorescent lamps of FIG. 1 are arranged in series Schematic side view (A) of the fluorescent lamp according to the second embodiment of the present invention in which the base is attached to the longest busbar side of the fluorescent tube, the base of the fluorescent lamp according to the second embodiment of the present invention is Schematic side view of the fluorescent tube attached to the shortest bus side (B) Schematic side view when two fluorescent lamps of FIG. 6 are alternately arranged in series Among the fluorescent lamps according to the third embodiment of the present invention, a schematic side view (A) of the base attached to the shortest busbar side of the fluorescent tube, and among the fluorescent lamps according to the second embodiment of the present invention, the base is Schematic side view of the fluorescent tube attached to the longest bus (B) Schematic side view when a plurality of fluorescent lamps according to the second and third embodiments are used and arranged in series Schematic side view of the fluorescent lamp according to the first embodiment of the present invention and the mounting position of the lamp pin is different

Explanation of symbols

10a-e, 20 Fluorescent lamps 11a-e, 21 Fluorescent tubes 12a-e, 22 Side surfaces of fluorescent tubes 13a-e, 13d ', 13e', 23 End surfaces of fluorescent tubes 14a-e, 24 Cylindrical axes of fluorescent tubes 15a- e, 25 Base 16a-e, 26 Base 17a-e, 27 Lamp pin

Claims (5)

  In an illumination lamp having a lamp pin on the side surface of the lamp tube and arranged in series, at least a part of one end surface of the lamp tube is inclined with respect to the cylindrical axis of the lamp tube, and the two adjacent lamp tubes The opposing end surfaces are at least partially overlapped when viewed from the direction perpendicular to the length direction of the lamp tube, and are formed in a shape that complementarily complements the gap between the opposing end surfaces. Lighting lamp to do.   2. An illumination lamp according to claim 1, wherein both end faces of the lamp tube are planes parallel to each other, and the both end faces are perpendicular to a plane including the cylindrical axis of the lamp tube and parallel to the lamp pin. .   2. An illumination lamp according to claim 1, wherein both end faces of the lamp tube are planes parallel to each other, and the both end faces are inclined with respect to a plane including the cylindrical axis of the lamp tube and parallel to the lamp pin. .   Both end surfaces of the lamp tube are planes which are perpendicular to the length direction of the lamp tube and are plane-symmetric with respect to a plane passing through the center of the lamp tube, and the both end surfaces include a cylindrical axis of the lamp tube and a lamp pin. The illumination lamp according to claim 1, wherein the illumination lamp is perpendicular to a plane parallel to.   Both end surfaces of the lamp tube are planes which are perpendicular to the length direction of the lamp tube and are plane-symmetric with respect to a plane passing through the center of the lamp tube, and the both end surfaces include a cylindrical axis of the lamp tube and a lamp pin. The illumination lamp according to claim 1, wherein the illumination lamp is inclined with respect to a plane parallel to the illumination lamp.

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