JP2011070810A - Illumination light source - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination light source which can be handled easily at production, transportation, storage and installation or the like and moreover can be applicable to conventional fluorescent lamp lighting fixtures of various models. <P>SOLUTION: Semiconductor light emitting elements are provided as a light source, and base parts 10 and 30 provided with bases applicable to a conventional straight tube fluorescent lamp lighting fixture are connected to both ends of a light source part 200 composed of a plurality of light source units 20, each shorter than a tube length of a conventional straight tube fluorescent lamp, serially connected. The base part 10 is provided with a length adjusting mechanism and a tube length of the illumination light source is changed by the length adjusting mechanism and the number of the light source units 20 to be connected so as to be applicable to conventional lighting fixtures of various models. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an illumination light source, and more particularly to an illumination light source that is easy to handle during manufacture, transportation, storage, installation, and the like.

  2. Description of the Related Art Conventionally, lighting devices that use a fluorescent lamp with lower power consumption and longer life than an incandescent bulb as a light source have been widely used. In recent years, however, semiconductors such as light emitting diodes (LEDs) have been used as light sources with lower power consumption, longer life, less heat generation, and no problem of environmental pollution due to mercury like fluorescent lamps. Lighting devices that use light-emitting elements as light sources are attracting attention from the perspective of increasing global concern about energy shortages, global warming issues, and environmental issues. As a result, there is a movement to replace the currently used fluorescent lamp with illumination using a semiconductor light emitting element.

However, at present, fluorescent lamps are widely used all over the world, and a vast number of lighting fixtures for fluorescent lamps are installed in homes, offices, public facilities, and the like. If these are replaced with lighting fixtures dedicated to lighting devices using semiconductor light emitting elements, a very large cost and effort are required.
Therefore, a printed circuit board on which a plurality of LEDs are mounted is placed in a straight tube-shaped casing having the same length as that of an existing fluorescent lamp, and both ends thereof can be mounted in a socket of a conventional lighting fixture for a fluorescent lamp. There has been proposed a straight tube fluorescent lamp type LED illumination light source that is compatible with an existing straight tube fluorescent lamp by sealing with a base. (Patent Documents 1 and 2)

Patent No. 3987103 Japanese Patent No. 4156657

  However, in the fluorescent lamp type LED illumination light sources disclosed in Patent Documents 1 and 2, the casing is fixed to a fixed length as in the conventional fluorescent lamp, and the conventional fluorescent lamp is used during transportation and storage. It requires inconvenient transportation and storage space as long as the lamp. In addition, when the user carries it, it is long and not easy to handle as in the case of the conventional straight tube fluorescent lamp, which is inconvenient. Furthermore, unless the alternative LED illumination light source is individually designed for various fluorescent lighting fixtures having different lengths, it cannot be used for existing fluorescent lighting fixtures.

  An object of the present invention is to provide an illumination light source using a semiconductor light emitting element, which has been made in view of the above circumstances, is easy to handle, and can be used for various existing lighting fixtures for fluorescent lamps. is there.

  In order to achieve the above object, an illumination light source according to the present invention includes a pair of base portions each including a base terminal that can be attached to and detached from each of a pair of sockets arranged to face each other in a lighting apparatus for a straight tube fluorescent lamp, An illumination light source that replaces an existing straight tube fluorescent lamp, comprising a light source unit that receives power supplied from the socket via a base and emits light. The light source unit includes a plurality of light source units shorter than the tube length, the light source unit including a base member on which a semiconductor light emitting element is mounted, and an inflexible connection unit that connects and disconnects the other light source units in series. When the light source unit and another light source unit are connected, a power supply path to the semiconductor light emitting element is obtained by electrically connecting the light emitting unit of the light source unit and the light emitting unit of the other light source unit. An electrical terminal portion constituting a part, and having a.

With the above configuration, the illumination light source can be divided into units, so that the illumination light source is not long like a conventional fluorescent lamp type LED illumination light source, and can be easily handled when carried. In addition, a space having a length shorter than that of a conventional fluorescent lamp type LED illumination light source is sufficient during transportation, storage, and the like, which can contribute to convenience.
Further, when the light source unit is connected to another light source unit, the light irradiation direction of the light emitting unit in each light source unit is substantially parallel to the connecting portion of the light source unit facing the other light source unit. A member engaging at a position may be provided, and the other light source unit may include an engaged member at a position facing the engaging member.

Thereby, it is possible to realize an effective light distribution by aligning the light irradiation directions of the respective light source units.
Further, the electronic terminal portion may be provided on the connecting portion.
Thereby, it is not necessary to provide a power feeding path separately and provide a mechanism for connecting them, and the number of parts can be reduced and the cost can be suppressed. In addition, it is possible to contribute to the convenience of the user by omitting the work of connecting the power feeding path.

Here, the base part is a base terminal part that receives power supply from a socket of a fluorescent lamp luminaire, a light source part side connection part connected to the light source part, and the base terminal part and the light source part side connection. And an adjuster section that changes the distance between the sections.
Thereby, it can apply to various lighting fixtures for fluorescent lamps together with a change in the number of light source units to be connected.

Further, the adjuster part includes an elastic member, and the change of the distance is allowed while urging the distance between the base terminal part and the light source part side connection part by the elastic force of the elastic member. May be.
Thereby, the distance between the base terminal part and the light source part side connection part can be changed, and can be applied to various lighting apparatuses for straight tube fluorescent lamps. Furthermore, since the elastic force of the elastic member always urges the distance between the base terminal part and the light source part side connection part, the illumination light source is stably held in the socket of the lighting fixture. There is.

The engaging member may be a protrusion, and the engaged member may be a recess corresponding to the protrusion.
Thereby, since the engaging member and the engaged member each have a simple structure of a protrusion and a concave portion corresponding thereto, manufacturing and handling are easy and cost can be suppressed.

  An illumination light source according to the present invention is a light source that emits light by receiving a base part having a base terminal that can be attached to and detached from a socket in a lighting apparatus for a round fluorescent lamp, and power supplied from the socket through the base part. The light source unit includes a plurality of light source units, and the light source unit includes a light emitting unit including a semiconductor light emitting element, and 1 The light source unit and the other light source when the light source unit and the other light source unit are connected to each other. An electrical terminal portion that constitutes a part of a feeding path to the semiconductor light emitting element by electrically connecting the light emitting portion of the unit, and both ends of the connected light source units are 1 The mouth of It may be connected to the part.

This makes it possible to divide the illumination light source and pack it in a size smaller than the outer diameter at the time of use, so it can be handled more easily than conventional round fluorescent lamps, and it is convenient for transportation and storage Can be improved.
Here, when the light source unit is connected to another light source unit, the light irradiation direction of the light emitting unit in each light source unit is substantially the same as the connection part of the light source unit facing the other light source unit. A member that engages at a parallel position may be provided, and the other light source unit may include a member to be engaged at a position facing the engaging member.

Thereby, it is possible to realize an effective light distribution by aligning the light irradiation directions of the respective light source units.
Moreover, the said electronic terminal part may be arrange | positioned on the said connection part here.
As a result, it is not necessary to provide a power feeding path separately and provide a mechanism for connecting them, the cost can be reduced by reducing the number of components, and the work for connecting the power feeding path can be omitted for the convenience of the user. Can contribute.

Further, the one plane may be a plane orthogonal to the light irradiation direction of the light source unit.
Thereby, even when a connection part bends, the light irradiation direction of each light source unit can be kept substantially parallel.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view which shows the state with which each structural unit of the illumination light source which concerns on Embodiment 1 of this invention was isolate | separated, and the state connected, Comprising: The nozzle | cap | die part and light source unit which comprise an illumination light source are shown to (a). The external appearance in the separated state is shown in (b), and the external appearance of the base part on the side different from that shown in (a) of the side connected to the light source unit of the base part is shown in (c). FIG. 2 shows the external appearance of each of the constituent units of the illumination light source according to Embodiment 1 of the present invention connected on a straight pipe. It is an external appearance perspective view which shows the structure of the light source unit which concerns on Embodiment 1 of this invention, Comprising: (a) is the front left view, (b) is the perspective view seen from the front right side. It is a disassembled perspective view which shows the structure inside the housing | casing of the light source unit which concerns on Embodiment 1 of this invention. It is a disassembled perspective view which shows the structure of the nozzle | cap | die part which concerns on Embodiment 1 of this invention, and the structure of a length adjustment mechanism, Comprising: (a) is the perspective view seen from the front left side, (b) is seen from the front right side. . It is sectional drawing by the virtual plane P1 shown to Fig.4 (a) in the state in which each component of the nozzle | cap | die part shown in FIG. 4 was assembled | attached. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: (a) has a cylindrical housing | casing, (b) is a square cylindrical housing | casing. The light source unit which has is shown. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: The some light source unit by which several LED is arrange | positioned on the base member is shown. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: Several LED is two-dimensionally on the end surface of the connection part of the side connected with a housing | casing. (A) shows the housing | casing which has a cylindrical light guide member inside, (b) shows the light source unit provided with the housing | casing by which the fluorescent material was apply | coated to the internal peripheral surface. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: Red, green, and blue LED are on the end surface of the connection part connected with a housing | casing. Each of the light source units includes a plurality of two-dimensionally arranged casings each having an inner peripheral surface coated with a fluorescent material. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: (a) was equipped with the plate-shaped shielding member, (b) was provided with the cylindrical shielding member. A light source unit is shown. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: The light source unit by which the reflecting film was arrange | positioned in a part of housing | casing internal peripheral surface is shown. It is an external appearance perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: As a light source, (a) is a plate-shaped organic EL (Electro Luminescence), (b ) Shows a light source unit in which an organic EL provided with a flexible substrate is arranged on the inner surface of the housing. It is an external perspective view showing the configuration and shape of a light source unit according to a modification of the first embodiment of the present invention, the light emitting unit can be replaced without separating the connecting portion and the housing, (A) determines the light color by the light emitting module of the light emitting unit, (b) determines the light color by the case of the small light source unit that houses the light emitting unit, and (c) indicates the light color by the case of the light source unit. The light source unit provided with the structure which determines is shown. It is a disassembled perspective view which shows the structure and shape of the light source unit which concerns on the modification of Embodiment 1 of this invention, Comprising: The light source unit by which the connection part and the light emission part were electrically connected by the lead wire soldered Show. It is a disassembled perspective view which shows the structure and shape of the light source unit which concern on the modification of Embodiment 1 of this invention, Comprising: The light emission part is not directly hold | maintained at a connection part or a housing | casing, but is equipped with the structure hold | maintained by a holding member. A light source unit is shown. It is an external appearance perspective view which shows the structure and shape of the light source unit and connection part which concern on the modification of Embodiment 1 of this invention, (a) And (b) is a connection part provided with a pair of pin and pin hole. (C), (d), (e), and (f) show the connection part which provided a pair of plate-shaped pin and the insertion port. It is a figure which shows the structure and shape of the connection part which concern on the modification of Embodiment 1 of this invention, Comprising: (a), (b) is the structure connected by inserting and rotating a connection member in a connection hole. It is a perspective view of a connecting part provided, (c) is a front view of the connecting part shown in (a), (b), (d), (e) is inserted linearly by inserting a connecting member into the connecting hole It is a perspective view of the connection part provided with the structure connected by moving, (f) is a front view of the connection part shown to (d) and (e). It is a disassembled perspective view which shows the structure of the nozzle | cap | die part which concerns on the modification of Embodiment 1 of this invention, and the structure of a length adjustment mechanism, Comprising: (a) is the perspective seen from the front left side, (b) is seen from the front right side. FIG. It is sectional drawing by the virtual plane P2 shown to Fig.18 (a) in the state in which each component of the nozzle | cap | die part shown in FIG. 18 was assembled | attached. It is a disassembled perspective view which shows the structure of the nozzle | cap | die part which concerns on the modification of Embodiment 1 of this invention, and the structure of a length adjustment mechanism, Comprising: (a) is the perspective seen from the front left side, (b) is seen from the front right side. FIG. It is sectional drawing by the virtual plane P3 shown to Fig.20 (a) in the state in which each component of the nozzle | cap | die part shown in FIG. 20 was assembled | attached. It is a top view which shows the state with which each structural unit of the illumination light source which concerns on Embodiment 2 of this invention was isolate | separated, and the state connected, Comprising: A light source unit is shown in (b), and a nozzle | cap | die part is shown in (b). , And (c) show a state in which the constituent units of the illumination light source according to Embodiment 2 of the present invention are connected in a ring shape. It is a partially notched external appearance perspective view which shows the structure of the light source unit which concerns on Embodiment 2 of this invention. It is a disassembled perspective view which shows the bending mechanism inside the connection part of the light source unit which concerns on Embodiment 2 of this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an illumination light source according to the present invention will be described with reference to the drawings.
<Embodiment 1>
(1-1. Overall configuration of illumination light source)
FIG. 1 is an external perspective view showing a schematic configuration of a straight tube illumination light source 100 according to Embodiment 1 of the present invention. FIG. 1A shows a base part of a straight tube fluorescent lamp, a base part 10, 30 each having a pair of electrode terminals 111 fitted into a socket of a lighting fixture for a straight tube fluorescent lamp, and a base part 1 is an external perspective view showing a state where light source units 20 constituting a light source unit 200 that emits light upon receiving power supply from 10 and 30 are separated from each other. FIG. FIG. 1B is an external perspective view showing the side of the base 30 connected to the light source unit 20. FIG. 1C is an external perspective view showing a state in which the cap parts 10 and 30 are respectively connected to both ends of a light source part 200 formed by connecting a plurality of light source units 20 in series. As shown in FIG. 1 (c), the tube length can be changed by changing the number of connected light source units 20 constituting the light source unit 200, whereby various lengths of lighting for straight tube fluorescent lamps are possible. It can be used for instruments.
(1-2. Configuration of light source unit)
2 is an external perspective view showing a schematic configuration of the light source unit 20, FIG. 2 (a) is a view seen from the front left side of the light source unit, and FIG. 2 (b) is a view seen from the front right side. It is. A light emitting unit 23 having a light emitting module in which an LED 232 which is a semiconductor light emitting element is arranged on a base member 231 is arranged inside a transparent cylindrical casing 24, and at both ends of the light emitting unit 23 and the casing 24, The connecting parts 21 and 22 are connected to seal the light emitting part 23. The LEDs 232 are sealed with a resin such as a silicone resin mixed with a phosphor, and a plurality of the LEDs 232 are arranged on the base member 231 in a line shape. The base member 231 is made of, for example, a metal such as ceramic or aluminum typified by alumina or aluminum nitride, a resin such as a liquid crystal polymer or polyimide, and the housing 24 is made of, for example, acrylic or polycarbonate resin. The connecting portion 21 includes a female screw 211, and the connecting portion 22 includes a male screw 221, which are screwed into the male screw 221 and the female screw 211 of the other light source unit 20, respectively. Further, the base part 10 includes a male screw 221, and the base part 30 includes a female screw 211 (see FIGS. 1A and 1B), and the male screw 221 of the base part 10 is provided at one end of the light source unit 200. The female screw 211 of the light source unit 20 is screwed with the female screw 211 of the base 30, and the male screw 221 at the other end of the light source unit 200 is screwed into the straight tube illumination light source 100. The male screw 221 of the light source unit 20 and the base part 10 and the female screw 211 of the light source unit 20 and the base part 30 have the same shape and configuration as the base and socket of the light bulb, respectively, and include two electrodes. It constitutes a part of the feeding path of the tube illumination light source 100. A part of the current path to each LED 232 arranged on the base member 231 is formed on the base member 231.

  In addition, in the same figure, in order to clearly display the LED 232 disposed on the base member 231, the light irradiation direction is shown upward, but in actual use, the lighting fixture is Since it is often installed at a high position such as the ceiling, the light irradiation direction is downward, and is upside down from the figure. Hereinafter, in the drawings of the present application, for the purpose described above, the light irradiation direction is illustrated to be upward.

Further, although the strength is lower than that made of the acrylic, polycarbonate resin or the like, glass can be used for the housing 24. Even in this case, since the tube length is shorter than that of the conventional long straight tube fluorescent lamp, the handling becomes easier to some extent.
The connecting portion 21 is provided with a concave portion 212, and the connecting portion 22 is provided with a convex portion 222. When the connecting portion 22 is connected to another light source unit 20, the light irradiation directions of the respective light source units 20 are substantially parallel to each other. Thus, the concave portion 212 and the convex portion 222 are engaged. Thereby, when the several light source unit 20 is connected, the light irradiation direction of each light source unit 20 can be arrange | equalized. In addition, the convex part 222 is provided in the edge part on the opposite side to the side in which the electrode terminal 111 of the base part 10 is provided (refer FIG. 1a), and the side in which the electrode terminal 111 of the base part 30 is provided, and A concave portion 212 (see FIG. 1 b) is provided at the opposite end, and the electrodes of the base portions 10 and 30 with the light irradiation direction of each light source unit 20 of the light source portion 200 facing downward in the vertical direction. At the position where the terminal 111 is mounted on the socket of the fluorescent lamp lighting fixture, the concave portion 212 and the convex portion 222 of the light source unit 20 at both ends of the light source unit 200 are engaged.

  The fluorescent lamp illuminator supplies alternating current power, while direct current power is required to light the LED. Therefore, the base 10 (see FIG. 1) has a built-in rectifier circuit. The rectifier circuit may be provided in the base part 30. A conductive wire 25 is provided inside the housing 24, and the conductive wire 25 is a part of an AC current path between a pair of sockets and a rectifier circuit that are arranged opposite to each other in a lighting device for a straight tube fluorescent lamp. Or a part of a direct current path between the rectifier circuit and each LED in each connected light source unit. Moreover, it is good also as a structure provided with two or more conductive wires 25, and when performing processing, such as a change of wiring and replacement of an apparatus, to a lighting fixture side, it is good also as a structure which does not provide the conductive wire 25. FIG. For the configuration of the rectifier circuit built in the base 10, see, for example, Japanese Patent Application Laid-Open No. 2009-87588.

  In addition, since the voltage required for the straight tube illumination light source 100 differs depending on the number of light source units to be connected, in addition to the rectifier circuit, the voltage change circuit and the user can select the connection by selecting the number of light source units to be connected. A connected number receiving means for receiving information on the number may be provided in the base part 10, and the voltage changing circuit may change the voltage to an appropriate value according to the connected number information of the light source unit 20 received by the connected number receiving means. . Also in this case, the rectifier circuit, the voltage changing circuit, and the connected number receiving means may be provided in the base part 30.

Here, a configuration may be adopted in which the number of light source units connected by mounting a microcomputer on the base 10 is automatically determined, and the voltage changing circuit is controlled to supply a voltage suitable for the number of connections. Also in this case, the microcomputer may be provided in the base part 30.
Further, a rectifier circuit may be provided on the fluorescent lamp luminaire side. In that case, it will be necessary to install the rectifier circuit in the existing fluorescent lighting fixture, but it is not necessary to use the existing fluorescent lighting fixture and replace the entire lighting fixture. Can contribute. In this case, since the length of the straight tube illumination light source 100 to be attached to the target fluorescent lamp lighting fixture is fixed and the number of light source units to be connected is also fixed, a DC voltage suitable for the number of connections is first applied. The circuit configuration may be such as that provided by

FIG. 3 is a perspective view showing a state in which the casing 24 is removed from the light source unit 20 and the light emitting unit 23 and the coupling units 21 and 22 are removed. As shown in the figure, the light emitting unit 23 includes plate-like pins 233 at both ends in the longitudinal direction, and the plate-like pins 233 are inserted into the insertion ports 223 (connection portions 21) provided in the connection portions 21 and 22. The light-emitting portion 23 is fixed to the connecting portions 21 and 22 by being fitted to the insertion port 223 (not shown). Further, when the plate-like pin 233 and the insertion port 223 are fitted, a part of the power supply path to the LED 232 is formed.
(1-3. Length adjusting mechanism of base part)
The straight tube illumination light source 100 in the present embodiment replaces a plurality of existing fluorescent lamps having different lengths by changing the number of light source units 20 to be connected. However, the number of light source units is changed. However, a slight error may occur with the tube length of the existing fluorescent lamp. Therefore, in this Embodiment, the nozzle | cap | die part 10 is provided with a length adjustment mechanism. Hereinafter, the length adjusting mechanism will be described with reference to the drawings.

  FIG. 4 is an external perspective view showing a state before the parts related to the length adjusting mechanism of the base part 10 are disassembled and assembled, and FIG. 4A is from the left side of the front, and FIG. It is the perspective view seen from the front right side. The base part 10 includes a base 11, a spring 12, and a connecting part 13. The base 11 has a cap 114 that forms the outer shape of the base 11, and a pair of electrode terminals 111 that are fitted into a socket of a fluorescent lamp luminaire are provided on the end surface of the cap 114 on the closed end. Is provided. On the opening side of the cap 114, there is a cylindrical portion 113 having a diameter smaller than the inner diameter of the cap 114, and one end surface of the cylindrical portion 113 is integrated with the inner surface of the end surface of the cap 114. A cylindrical gap 115 is formed between the column part 113 and the cap 114, and an engaging protrusion 114a is provided on the surface of the cap 114 on the cylindrical gap 115 side. Reference numeral 112 denotes a lead wire serving as a power supply path from the electrode terminal 111, which is in the state of being cut off in the drawing, but is actually connected to the connecting portion 13, and is connected to the straight tube illumination light source 100. It forms part of the power supply path. The same applies to other drawings. The spring 12 is installed around the cylindrical portion 113 so as to fit inside the cylindrical gap 115, and the cylindrical portion 133 of the connecting portion 13 is inserted into the cylindrical gap 115 so as to compress and shrink the spring 12. Is done. At this time, the columnar portion 113 and the lead wire 112 are a columnar void portion 131c that is an internal space of the cylindrical portion 133, and a storage portion that is provided adjacent to the columnar void portion 131c on the connection portion 13 internal male screw 221 side. The engaging protrusion 114a is housed in 131d and slidably engages with a slide groove 132 provided on the outer peripheral surface of the cylindrical portion 133. The column portion 113 is slidably fitted to the cylindrical portion 133, and the cylindrical portion 133 is slidably fitted to the cap 114.

  FIG. 5 shows a cross section taken along the virtual plane P <b> 1 in FIG. 4A in a state where the base 11, the spring 12, and the connecting portion 13 are assembled. As shown in the figure, the engaging protrusion 114a has a key-like shape in which the electrode terminal 111 side is thick and the connecting part 13 side is thin, thereby making it easy to assemble the base 11 and the connecting part 13 together. At the same time, the end of the engaging protrusion 114a on the electrode terminal 111 side is locked by the end of the slide groove 132 on the base 11 side, and the base 11 and the connecting portion 13 are held together. Further, the base 11 is always urged away from the connecting portion 13 by the spring 12, and the engaging protrusion 114 a slides in the slide groove 132, whereby the distance between the base 11 and the connecting portion 13. Can be changed. Furthermore, when the straight tube illumination light source 100 is mounted on a fluorescent lamp lighting fixture, the biasing force of the spring 12 applies a force in a direction in which the base portions 10 and 30 are always pressed against the socket of the lighting fixture. There is also an effect that the straight tube illumination light source 100 is stably held in the instrument.

The convex portion 222 and the concave portion 212 are made of a conductive member, and the convex portion 222 and the concave portion 212 engage with each other, so that the LEDs of the light source units 20 constituting the light source unit 200 are formed from the base portions 10 and 30. It is good also as a structure in which a part of electric power feeding path to is formed.
Further, the length adjusting mechanism may be provided in the base part 30 or the light source unit 20.
(1-4. Summary of Embodiment 1)
As described above, according to the configuration of the first embodiment, when not in use, it is possible to contribute to storage and transportation by dividing the tube length and shortening the tube length. It is possible to provide a straight tube illumination light source 100 including a semiconductor light emitting element such as an LED that replaces a tube fluorescent lamp. Furthermore, it can respond to various lighting fixtures for straight tube fluorescent lamps having different lengths by adjusting the number of light source units 20 to be connected and a length adjusting mechanism.
<Modification>
As described above, the first embodiment of the present invention has been described with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and the following modifications can be implemented. In addition, in order to avoid duplication of description, the description is abbreviate | omitted about the same content as Embodiment 1, and shall attach | subject the same code | symbol about the same component.
(1) In the first embodiment, the base member 231 in which the plurality of LEDs 232 are linearly arranged is supported by the connecting portions 21 and 22 so as to be positioned at the approximate center of the housing 24. However, the present invention may be as follows. That is, the base member 231 may be directly attached to the inner surface of the housing 24. In this case, the casing 24 is not limited to a cylindrical shape (see FIG. 6A), and may be a cylindrical body having a quadrangular cross section as shown in FIG. 6B, or other polygonal cross section. It is good also as a shape which has.
(2) In the first embodiment, a line light source in which a plurality of LEDs 232 are arranged on a straight line on the base member 231 is used. However, the present invention is not limited to this, and as shown in FIG. A plurality of LEDs 232 may be two-dimensionally arranged to form a surface light source.
(3) Further, the LED 232 is disposed on the end face of the connecting portion 21 that is sealed in the housing 24, and the cylindrical light guide member 241 is disposed inside the housing (FIG. 8A). Alternatively, an LED 232 ′ that is not sealed with a silicone resin mixed with a phosphor or the like is disposed on the end surface of the connecting portion 21 on the side sealed in the casing 24, and fluorescent light is formed on the inner peripheral surface of the casing 24. A structure in which a phosphor layer 242 is formed by applying a body may be employed (FIG. 8B).
(4) In the configuration shown in FIG. 8B, as shown in FIG. 9, a configuration that generates white light using three types of LEDs 232 ′, red LED 232 ′ R, green LED 232 ′ G, and blue LED 232 ′ B as shown in FIG. 9. It is good.
(5) A shielding member 235 may be provided on the LED 232 so that the LED 232 that is a light source is not directly visible to the user. The shielding member 235 may be a translucent plate-like member as shown in FIG. 10 (a), or may be a semi-transparent columnar or cylindrical member as shown in FIG. 10 (b). Further, when it is desired to set the illuminance directly below the light source to be low, an opaque member can be used for the shielding member 235.
(6) As shown in FIG. 11, the light distribution may be controlled by providing a reflective film 26 on the inner surface of the housing 24. In the figure, the reflective film 26 is provided over substantially half of the inner surface of the housing 24, but the degree of coverage of the reflective film on the inner surface of the housing 24 can be increased or decreased according to the purpose.
(7) The semiconductor light emitting element used as the light source is not limited to the LED, and an organic EL may be used. The organic EL 27 may have a long plate shape as shown in FIG. 12A, and the organic EL 27 provided with a flexible substrate as shown in FIG. It is good also as a structure arrange | positioned on the inner surface of 24.
(8) As shown in FIG. 13, the light emitting section 23 can be removed from the casing 24 without separating the casing 24 and the connecting portions 21 and 22. Specifically, the light source unit 28 shown below is provided. The small light source unit 28 has the following configuration. That is, the light emitting unit 23 is housed in a cylindrical small housing 282 having a diameter smaller than that of the housing 24, and both ends thereof are sealed by the sealing members 281 and 283, and the light emitting unit 23 of the sealing member 283 is formed. A male screw 221 is attached to a surface opposite to the sealed side, and a plate-like pin 284 and a surface opposite to the side where the light emitting portion 23 of the sealing member 281 is sealed are provided. 285 is erected. In the first embodiment, an opening 225 is provided at a position where the male screw 221 is provided on the connecting portion 22, and the outside and the inside of the connecting portion 22 communicate with each other through the opening 225. The small light source unit 28 is inserted into the housing 24 through the opening 225 from the end on the side where the plate-like pins 284 and 285 are erected, and the plate-like pin 284 on the housing 24 side end surface of the connecting portion 21 and The small light source unit 28 is held inside the casing 24 by fitting the plate-like pins 284 and 285 into the insertion ports 213 and 214 provided at positions opposed to the H.285. The plate-like pins 284 and 285 are erected with a predetermined angle. Thereby, when the small light source unit 28 is mounted, the light irradiation direction is always the same direction with respect to the coupling portions 21 and 22, and the light irradiation direction is kept in the same direction. Further, since the LED emits light when the direction of the current is one predetermined direction, the female pins 211 and the light emitting portion 23 of the connecting portion 21 are obtained by fitting the plate-like pins 284 and 285 to the insertion ports 213 and 214. When is electrically connected, plus and minus must be connected correctly. Thus, by making the standing angles of the plate-like pins 284 and 285 different from each other, there is an effect that the plus and minus are reliably connected correctly. The plate-shaped pins 284 and 285 can achieve the above object even if their shapes, lengths, widths and the like are different from each other.

  In addition, since the small light source unit 28 is replaceable, by preparing a plurality of light source small light source units 28, the light source unit 28 can be replaced and the light color can be changed. The light color change of the small light source unit 28 can also be achieved by changing the type of fluorescent material mixed in the silicone resin that seals the individual LEDs 232, or by changing the blending ratio of multiple types of fluorescent materials. A configuration in which the light color is changed by the fluorescent material applied to the inner surface of the small housing 282 using the LED 232 ′ that is not sealed by the resin (FIG. 13B), or may be applied to the inner surface of the housing 24. It is good also as a structure (FIG.13 (c)) which changes light color with the made fluorescent material.

The shapes of the plate-shaped pins 284 and 285 and the insertion ports 213 and 214 are not limited to the shapes shown in FIG. 13, and the small light source unit 28 is placed inside the housing 24 by aligning the light irradiation direction at the time of mounting. Any shape may be used as long as it can be attached. For example, it is good also as a male screw and a female screw provided with the function which aligns a light irradiation direction to a predetermined direction by the recessed part 212, the convex part 222, and a mechanism similar to these.
(9) In the first embodiment, the plate-like pin 233 is fitted into the insertion port 223, so that a part of the power feeding path from the base parts 10 and 30 to the LED 232 is formed. Not limited. For example, as shown in FIG. 14, a lead wire 224 may be extended from a male screw 221 and a female screw 211, and the tip thereof may be electrically connected to both ends of the base member 231 by soldering 234.
(10) The light emitting unit 23 may not be directly held by the connecting portions 21 and 22, but may be housed in the dock base and housed in the housing 24 of the light source unit 20 together with the dock base. For example, as shown in FIG. 15 (a), a semi-cylindrical dock is provided inside the housing 24 with a semi-cylindrical member 237 provided on the side opposite to the side where the LEDs 232 of the base member 231 are arranged. A configuration in which the semi-cylindrical member 237 is fitted into the housing recess 291 of the base 29 may be adopted. Plate-like pins 236 a and 236 b are erected on the semi-cylindrical member 237, and the light-emitting portion 23 is held on the dock base 29 by fitting with the insertion ports 292 a and 292 b provided in the housing recess 291, respectively. And are electrically connected. Since the LED emits light when the direction of the current is a predetermined direction, it is necessary that the plus and minus are correctly connected in the electrical connection. Therefore, it is preferable that the lengths and shapes of the plate-like pins 236a and 236b, the standing angle, and the like are different from each other so that the plus and minus are securely connected correctly. FIG. 15 shows a case where the widths (lengths in the tube length direction) of the plate-like pins 236a and 236b are different. Plate-like pins 233 are respectively provided upright at both ends of the pipe base 29 in the tube length direction, and the insertion holes 223 (the insertion holes of the connection portion 21) in which the plate-like pins 233 are provided in the connection portions 21 and 22. 223 is not shown). When the plate-shaped pin 233 and the insertion port 223 are fitted, the connecting portions 21 and 22 and the dock base 29 are electrically connected. As a result, a part of the current path of the straight tube illumination light source 100 is partly connected. Form.

  Further, as shown in FIG. 15B, the dock base 29 is further miniaturized so that the small housing 282 (see FIG. 13) of the small light source unit 28 (see FIG. 13) plays a role. Good. In this case, the dock base 29 may be housed inside the small housing 282. However, as shown in FIG. 15B, when the small housing 282 is not provided, the dock base 29 of the light emitting unit 23 is provided. Easy to install.

Note that the semi-cylindrical member 237 may serve as a heat sink, and the dock base 29 may also serve as a heat sink.
(11) In the first embodiment, the light source unit 20 and the other light source unit 20 and the light source unit 20 and the base parts 10 and 30 are connected by the male screw 221 and the female screw 211. However, the present invention is not limited thereto. However, the following modifications can be considered. That is, instead of the male screw 221 and the female screw 211, as shown in FIGS. 16A and 16B, the pins 226a and 226b may be connected by fitting into the pin holes 215a and 215b, respectively. At this time, the diameters of the pins 226a and 226b may be made different as shown in FIGS. 16A and 16B so that the positive and negative currents are correctly connected. In that case, the diameters of the pin holes 215a and 215b also have different sizes accordingly.

  In addition to the pins 226a and 226b and the pin holes 215a and 215b, for example, as shown in FIGS. 16 (c) to (f), plate-like pins 227a and 227b and corresponding insertion ports 216a, It may be 216b. Also in this case, the standing angles of the plate-like pins 227a and 227b may be different so that the positive and negative currents are correctly connected (FIGS. 16C and 16D). The pin-like pins 227a and 227b are erected in parallel with each other, and may have different widths (FIGS. 16E and 16F). Further, the number of pins and corresponding insertion ports may be three or more.

  Furthermore, as a connecting method other than the male screw 221 and the female screw 211, a connecting member as shown in FIGS. 17A, 17B, and 17C can be considered in addition to the method using the pins. 17A and 17B are external perspective views of the connecting portions 22 and 21, and FIG. 17C is a front view of the connecting portion 21. A connecting member 228 in which a columnar member 228b is erected on a plate-like member 228a having a waterdrop-like planar shape is provided in the connecting portion 22, while the connecting portion 21 is provided with a connecting hole 217a. The connecting hole 217a has a shape that matches the planar shape of the plate-like member 228a. A connection gap 217b having the same vertical cross-sectional shape as the connection hole 217a and communicating with the outside through the connection hole 217a is provided inside the connection portion 21, and the connection member 228 is inserted from the connection hole 217a. In this case, the tube member 228b has a length in the tube length direction that just fits in the columnar member 228b. A rotating space 217c is further provided on the end face of the connecting gap 217b on the housing 24 side, so that the plate-like member 228a can be rotated 90 degrees around the columnar member 228b. When the plate-like member 228a is rotated 90 degrees, the electric terminal portion 228c on the plate-like member 228a comes into contact with the electric terminal portion 217d provided on the surface of the rotating space 217c on the housing 24 side, and the current path Form part. Although the planar shape of the plate-like member 228a is a water droplet, it is not limited to this, and if the positive and negative currents are correctly connected and the light irradiation direction can be aligned in the same direction, other than the previous water droplet shape Any of these shapes may be used.

Furthermore, connection members as shown in FIGS. 17D, 17E, and 17F can be considered. FIGS. 17D and 17E are external perspective views of the connecting portions 22 and 21, and FIG. 17F is a front view of the connecting portion 21. A connecting member 229 in which a columnar member 229 b is erected on a plate-like member 229 a having an oval planar shape is provided on the upper end surface of the connecting portion 22. On the other hand, a connecting hole 219 is provided in the connecting portion 21. The connection hole 219 includes a horizontal oblong hole portion 219a that is long in the horizontal direction and a vertical oblong hole portion 219b that is long in the vertical direction, and the lower end of the oblong hole portion 219b and the center portion of the oblong hole portion 219a are connected. It has a different shape. A connection gap 219 c having the same vertical cross-sectional shape as the connection hole 219 and communicating with the outside through the connection hole 219 is provided inside the connection portion 21, and the connection member 229 is inserted from the connection hole 219. In this case, the tube member 229b has a length in the tube length direction that just fits in the cylindrical member 229b. A slide space 219d is further provided on the end surface of the connecting gap 219c on the housing 24 side. When the columnar member 229b is moved upward along the vertical oval hole 219b, a plate-like member is formed accordingly. 229a moves upward in the slide space 219d, the plate-like member 229a comes into contact with the upper surface of the slide space 219d, the movement is stopped, and the connecting member 229 is held at that position. At this time, the electric terminal portion 229c on the plate-like member 229a comes into contact with the electric terminal portion 219e provided on the surface of the slide space 219d on the housing 24 side to form a part of the current path. Note that the shape of the plate-like member 229a is not limited to an ellipse, and if the current plus and minus are correctly connected and the light irradiation direction can be aligned in the same direction, a circle, an ellipse, a polygon, etc. It may have any shape. Further, the shapes of the columnar members 228b and 229b are not limited to columns, and may be columnar members having a cross-sectional shape such as a polygon.
(12) In the first embodiment, the configuration in which the base portion 10 includes the length adjusting mechanism using the elastic force of the spring 12 (see FIG. 4) has been described. However, the present invention is not limited to this, and a base 10 having a length adjusting mechanism as described below can be considered. As shown in FIGS. 18A and 18B, the base portion 10 includes a base 11, a rotating portion 14, and a connecting portion 13. A first engaging portion 116 is erected on the end surface on the rotating portion side of the base 11, and is rotatably engaged with a first engaged portion 141 provided on the end portion on the base 11 side of the rotating portion 14. A female screw portion 143 is provided on the inner peripheral surface of the rotating portion 14, and a second engagement portion 142 is provided in parallel with the female screw portion 143 in the tube length direction, away from the female screw portion 143 by a predetermined distance. . The connecting portion 13 has a cylindrical portion 133 on the rotating portion 14 side (the base 11 side), and a male screw portion 133 a is provided on the outer peripheral surface of the cylindrical portion 133. A cylindrical space 131c is provided inside the cylindrical portion 133, and the columnar space 131c communicates with the outside through a circular opening 131a having a slightly smaller diameter. An annular stepped portion 131b (see FIG. 19) is formed at the boundary between the circumferential surface of the columnar gap 131c and the circular opening 131a due to the difference in diameter. A second engaged portion 131 (see FIG. 19) is formed by the cylindrical gap 131c, the circular opening 131a, and the annular step portion 131b. The second engaging portion 142 is slidable in the direction of the axis X shown in FIGS. 18A and 18B along the peripheral surface of the cylindrical gap 131c, and is rotatable about the axis X. It has become. The second engaging portion 142 is locked by the annular step portion 131b, thereby preventing the rotating portion 14 from being detached from the connecting portion 13. Further, when the second engaging portion 142 and the second engaged portion 131 are engaged, the female screw portion 143 and the male screw portion 133a are screwed together. FIG. 19 shows a cross-sectional view of the base 11, the rotating portion 14, and the connecting portion 13 in a state of being assembled with each other along the virtual plane P <b> 2 in FIG. 18 a. The base 11 and the rotating portion 14 are engaged with each other so as to be rotatable about the axis X while keeping the distance in the direction of the axis X constant. On the other hand, when the rotating portion 14 rotates, the degree of screwing between the female screw portion 143 and the male screw portion 133a changes, and the distance in the axis X direction between the rotating portion 14 and the connecting portion 13 changes. Thereby, the length of the base 11 in the base part 10 and the connecting part 13 in the axis X direction can be adjusted by rotating the rotating part 14.
(13) Furthermore, the base part 10 provided with the following length adjusting mechanism can be considered. As shown in FIGS. 20A and 20B, it is composed of a base 11 and a connecting portion 13. A cylindrical portion 117 is erected on the end of the base 11 on the side of the connecting portion 13. On the outer peripheral surface of the cylindrical portion 117, an engaging projection 118 is erected. The inside of the connection part 13 on the side of the base 11 is provided with a columnar cavity 131 c that communicates with the outside on the end face on the side of the base 11. A lateral groove 134a is provided in the direction parallel to the axis X on the inner peripheral surface of the cylindrical gap 131c, and a plurality of vertical grooves 134b are formed in the axis X direction on the inner peripheral surface of the cylindrical gap 131c. They are provided over a quarter of the circumference in the circumferential direction at predetermined intervals. Each vertical groove part 134b is connected with the horizontal groove part 134a in each lower end. When the cylindrical portion 117 is inserted into the columnar gap 131c with the engaging protrusion 118 engaged with the lateral groove 134a, the engaging protrusion 118 slides along the lateral groove 134a. By rotating the base 11 around the axis X in a state where the engaging protrusion 118 is positioned at the lower end of any of the vertical groove portions 134b, the engaging protrusion 118 slides along the vertical groove portion 134b, As a result, the engaging protrusion 118 is disengaged from the lateral groove 134a, and the movement of the engaging protrusion 118 in the axis X direction is restricted. As a result, the distance in the axis X direction between the base 11 and the connecting portion 13 is fixed. When the distance between the base 11 and the connecting portion 13 in the axis X direction is changed again, the base 11 is rotated around the axis X in the opposite direction to return the engaging projection 118 to the lateral groove 134a. At the same time, the engagement between the engaging protrusion 118 and the longitudinal groove 134b is released, and the base 11 can be moved in the axis X direction with respect to the connecting portion 13.

  FIG. 21 shows a cross-sectional view of the base 11 and the connecting portion 13 assembled to each other along the virtual plane P3 in FIG. 20a. In addition, although each vertical groove part 134b was provided over about 1/4 circumference in the circumferential direction on the internal peripheral surface of the cylindrical space | gap part 131c, it is not restricted to it, It is smaller than 1/4 circumference. It may be large. For example, it may be provided over a half circumference. Further, the number of the engaging protrusions 118 is not limited to one, and a plurality of the engaging protrusions 118 may be provided on the outer peripheral surface of the cylindrical portion 117. In that case, it is necessary to provide at least the horizontal groove part 134a among the horizontal groove part 134a and the vertical groove part 134b corresponding to each.

Further, the contents of the respective modifications may be combined.
<Embodiment 2>
In the first embodiment and the modifications, the straight tube illumination light source 100 that replaces the straight tube fluorescent lamp has been described. However, it is easy to handle by dividing, and the idea of adjusting to the number of existing light fixtures for fluorescent lamps by adjusting the number of light emitting units constituting the light source unit is limited to the straight tube type. However, the present invention can also be applied to an illumination light source that replaces an existing round fluorescent lamp. In Embodiment 2, an illumination light source using a semiconductor light-emitting element that replaces an existing round fluorescent lamp will be described. In addition, in order to avoid duplication of description, the description is abbreviate | omitted about the same content as each modification of Embodiment 1 and Embodiment 1, and shall attach | subject the same code | symbol about the same component.

  FIG. 22A is a plan view of the light source unit 40 in this embodiment, FIG. 22B is a plan view of the base part 50, and a plurality of light source units 40 are connected in series with one base at both ends. A plan view of the annular illumination light source 300 connected to the section 50 is shown in FIG. In FIG. 22 (c), the annular illumination light source 300 has a heptagonal configuration composed of six light source units 40 and one base part 50. The connecting portion 41 can be bent in one plane orthogonal to the light irradiation direction of each light source unit 40 of the illumination light source 300. This is because when the light source units 40 are connected in a ring shape, the connection portion needs to have a configuration that can be bent in order to be able to be connected in a ring shape even if the number of light source units 40 to be connected changes. This is to prevent the bending of the connecting portion from affecting the light irradiation direction. Pins 226a and 226b are provided upright at the end of the light source unit 40 on the connecting portion 41 side, and pin holes 215a and 215b are provided at the end of the connecting portion 21 side (see FIG. 23). The base part 50 includes two pairs of electrode terminals 111 (in FIGS. 22 (b) and 22 (c)), which are fitted into a socket of a lighting apparatus for a round fluorescent lamp. ) And a connecting portion 51 that can be bent in one plane, and pins 223 and 224 are provided upright at the end of the connecting portion 51 opposite to the base. In addition, pin holes 215 a and 215 b (not shown) are provided at the end of the base 52 opposite to the connecting portion 51. The base part 50 has a built-in rectifier circuit.

  FIG. 23 is a partially cutaway perspective view of the light source unit 40 showing a state inside the connecting portion 41 by partially cutting the bellows-like cover member 411 covering the connecting portion 41. The connecting portion 41 includes an arm member 414 erected on the housing side connecting member 412 and an arm member 415 erected on the pin side connecting member 413. The arm members 414 and 415 are connected by a cover member 411 so as to be rotatable in a plane. The housing side connecting member 412 and the pin side connecting member 413 are connected by a lead wire 112, and the lead wire 112 forms a part of a current path between the pins 226 a and 226 b and the light emitting unit 23. .

  FIG. 24 is a perspective view showing the arm members 414 and 415 separately. The arm member 414 includes an upper arm member 4141 and a lower arm member 4142 having a mirror image relationship. The upper arm member 4141 and the lower arm member 4142 have cylindrical recesses 4141a and 4142a at their ends. Bonding surfaces 4141b and 4142b are formed on the casing-side connecting member 412 side of the cylindrical recesses 4141a and 4142a via stepped parts 4141c and 4142c, respectively. The columnar recesses 4141a and 4142a are shaped to invade part of the joint surfaces 4141b and 4142b, respectively. On the other hand, the arm member 415 is formed by integrally forming a flat columnar disk member 415a at the tip of a flat quadrangular columnar arm main body 415b. The disk member 415a is housed in a state of being sandwiched between the cylindrical recesses 4141a and 4142a, and the joint surfaces 4141b and 4142b are joined, whereby the upper arm member 4141 and the lower arm member 4142 are integrated to form an arm member. 414 is formed. The disk member 415a is held in the cylindrical recesses 4141a and 4142a so as to be rotatable around the axis of the cylinder of the disk member 415a. When the disk member 415a is rotated, the arm main body 415b has a stepped portion 4141c and It moves in the space formed by 4142c. The rotation of the disk member 415a is limited by the engagement between the arm main body 415b and the step portions 4141c and 4142c. With the configuration described above, the arm members 414 and 415 can be bent around a cylindrical axis of the disk member 415a in one plane perpendicular to the axis. Although the cylindrical recesses 4141a and 4142a are formed so as to penetrate into a part of the joint surfaces 4141b and 4142b, respectively, the present invention is not limited thereto, and may be shaped so as not to enter at all.

The connecting portion 51 has the same configuration as the connecting portion 41.
<Modification>
In the second embodiment, when the number of light source units to be connected is fixed, the light source unit 40 and the base part 50 are formed in a fixed shape having a bending rate that provides a desired ring diameter, and the connection part is bent. It may be fixed.

In the second embodiment,
Note that the contents of the modifications of the first embodiment may be applied to the second embodiment, or the contents of the modifications may be combined.

  The illumination light source according to the present invention is useful as an illumination light source that is easy to handle during manufacture, transportation, storage, installation, and the like.

10, 30, 50 Base part 11, 52 Base 12 Spring 13, 21, 22, 41, 51 Connecting part 14 Rotating part 20, 40 Light source unit 23 Light emitting part 24 Case 25 Conductive wire 26 Reflective film 27 Organic EL
28 Small light source unit 29 Dock base 100 Straight tube illumination light source 111 Electrode terminal 112, 224 Lead wire 113 Column 114 Cap 114a, 118 Engagement projection 115 Cylindrical gap 116 First engagement 117, 133 Cylindrical 131 Second engaged portion 131a Circular opening portion 131b Annular step portion 131c Columnar gap portion 131d Storage portion 132 Slide groove 133a Male screw portion 134a Lateral groove portion 134b Vertical groove portion 141 First engaged portion 142 Second engaging portion 143 Female screw portion 200 Light source 211 Female screw 212 Recess 213, 214, 216a, 216b, 223, 292a, 292b Insertion port 215a, 215b Pin hole 217a, 219 Connection hole 217b, 219c Connection gap 217c Rotating space 217d, 219e, 228c, 229c Electrical terminal Part 219a Flat oval hole 219b Vertical oval hole 219d Slide space 221 Male screw 222 Protruding part 225 Opening part 226a, 226b Pins 227a, 227b, 233, 236a, 236b, 284, 285 Plate-like pins 228, 229 Connecting members 228a, 229a Plate member 228b, 229b Column member 231 Base member 232, 232 ′ LED
232'R red LED
232'G green LED
232'B Blue LED
234 Soldering 235 Shielding member 237 Semi-cylindrical member 241 Light guide member 242 Phosphor layers 281 and 283 Sealing member 282 Small housing 291 Housing recess 300 Annular illumination light source 411 Cover member 412 Housing side connecting member 413 Pin side connecting member 414 415 Arm member 415a Disk member 415b Arm main body 4141 Upper arm member 4141a, 4142a Cylindrical recess 4141b, 4142b Join surface 4141c Step 4142 Lower arm member

Claims (10)

A pair of base parts each having a base terminal that can be attached to and detached from each of a pair of sockets arranged to face each other in a lighting apparatus for a straight tube fluorescent lamp, and receives light supplied from the socket through the base part to emit light. An illumination light source that replaces an existing straight tube fluorescent lamp,
The light source unit includes a plurality of light source units shorter than the tube length of an alternative straight tube fluorescent lamp,
The light source unit is
A light emitting unit including a base member on which a semiconductor light emitting element is mounted;
A non-flexible connecting part that detachably connects other light source units in series;
When the light source unit and another light source unit are connected, the light emitting unit of the light source unit and the light emitting unit of the other light source unit are electrically connected to each other, thereby providing a power supply path to the semiconductor light emitting element. An illumination light source comprising: an electric terminal portion constituting the portion. When the light source unit is connected to another light source unit, the light source unit in the light source unit of each light source unit is substantially parallel to the connection part of the light source unit facing the other light source unit. The illumination light source according to claim 1, further comprising an engaged member, wherein the other light source unit includes an engaged member at a position facing the engaging member. The illumination light source according to claim 1, wherein the electronic terminal portion is provided on the connection portion. The base part is
A base terminal portion that receives power supply from a socket of a fluorescent lighting fixture,
A light source unit side connection unit connected to the light source unit;
The illumination light source according to any one of claims 1 to 3, further comprising an adjuster unit that changes a distance between the base terminal unit and the light source unit side connection unit. The adjuster portion includes an elastic member, and the change in the distance is allowed while urging the distance between the base terminal portion and the light source portion side connection portion by the elastic force of the elastic member. The illumination light source according to claim 4. The illumination light source according to claim 2, wherein the engaging member is a protrusion, and the engaged member is a recess corresponding to the protrusion. An existing round fluorescent lamp comprising a base portion having a base terminal that can be attached to and detached from a socket in a lighting device for a round fluorescent lamp, and a light source portion that emits light by receiving electric power supplied from the socket through the base portion. An illumination light source that replaces the lamp,
The light source unit includes a plurality of light source units,
The light source unit is
A light-emitting portion including a semiconductor light-emitting element in the configuration;
A connecting portion that is bendable within one plane and removably connects another light source unit;
When the light source unit and another light source unit are connected, the light emitting unit of the light source unit and the light emitting unit of the other light source unit are electrically connected to each other, thereby providing a power supply path to the semiconductor light emitting element. An electrical terminal part constituting the part,
Both ends of the plurality of connected light source units are connected to one base part. An illumination light source, wherein: When the light source unit is connected to another light source unit, the light source unit in the light source unit of each light source unit is substantially parallel to the connection part of the light source unit facing the other light source unit. The illumination light source according to claim 7, further comprising an engaging member, wherein the other light source unit includes an engaged member at a position facing the engaging member. The illumination light source according to claim 7 or 8, wherein the electronic terminal portion is disposed on the connection portion. The illumination light source according to any one of claims 7 to 9, wherein the one plane is a plane orthogonal to a light irradiation direction of the light source unit.

Images