JP3804523B2 - Lighting device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an illumination device using a light emitting diode as a light source.
[0002]
[Prior art]
Conventionally, as an illumination device for spot illumination, an illumination device in which an incandescent bulb is arranged inside a reflecting mirror has been used.
Since these lighting devices use incandescent light bulbs, they consume a large amount of power and are thermally affected. Recently, lighting devices using light emitting diodes as light sources have been developed.
[0003]
In order to popularize lighting devices that use light emitting diodes as light sources, lighting devices that use incandescent light bulbs that are already on the market, that is, light that has been collected by reflectors is emitted in a certain direction with directivity. It is considered that it is most effective to use a light emitting diode when replacing a light source when an incandescent light bulb breaks.
[0004]
[Problems to be solved by the invention]
However, in such an illumination device using an incandescent bulb as a light source, a power supply socket 2 is incorporated in the reflector 1 as shown in FIG. Could not be worn.
FIG. 6 also shows an incandescent bulb 9 screwed into the socket.
[0005]
In order to solve such a problem, as shown in FIG. 7, Japanese Patent Laid-Open No. 2001-52504 attaches a substrate 120 on which a plurality of light emitting diodes 110 are arranged to a base power receiving member 10 that can be attached to a socket 2 to provide a light source. It is described as part A.
However, in such a light source unit A, when the base power receiving member 10 of the light source unit A is screwed into the socket 2 of the reflecting mirror 1 as shown in FIG. When the reflecting mirror or the opening of the reflecting mirror is small, it may be difficult to rotate and attach the light source unit A to the socket 2 by holding the substrate 120.
[0006]
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an illuminating device using a light emitting diode as a light source by using an illuminating device having a reflecting mirror already on the market. .
[0007]
[Means for Solving the Problems]
In order to solve the above problem, the illumination device according to claim 1 is a lighting device in which a reflecting mirror is arranged so as to surround a light source unit, and the reflecting mirror has a top opening, and corresponds to the top opening. A power supply socket is disposed at a position, and the light source portion is disposed toward a front porcelain member having a base power receiving member formed on one end side for screwing into the socket, and toward the front opening of the reflecting mirror. A fixed substrate to which the light emitting diode is fixed, and a rotation support member for rotating the base porcelain member to screw the base power receiving member into the socket, and the fixed substrate is at the center of the fixed substrate. With the rotation support member inserted, the rotation support member is attached to the rotation support member. The rotation support member has one end fixed to the base porcelain member and the other end inserted through the fixed substrate. Forward Characterized in that it extends toward the front opening direction of the reflector from the light emitting diodes arranged towards the mouth.
[0008]
The illuminating device according to claim 2 is the illuminating device according to claim 1, and in particular, the rotation support member diffuses and transmits the light emitted from the light emitting diode in front of the light emitting diode. For this purpose, a diffusing and transmitting member is provided.
[0009]
The lighting device according to claim 3 is the illumination apparatus according to claim 1, in particular, the rotary support member at the center of the fixed substrate is screwed, the fixed substrate is extended presence of the rotary support member It is possible to move with respect to the direction.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The lighting device of the present invention will be described with reference to the drawings.
FIG. 1 is a side cross-sectional view of the lighting device of the present invention, and FIG. 2 is a front view showing only a light source unit described later.
[0011]
The reflecting mirror 1 has a reflecting surface 11 that is a spheroid, an opening 12 that emits light is formed in the front, and a metal spiral power feeding socket 2 is provided at a position corresponding to the top opening 13 of the reflecting mirror 1. Has been placed. The socket 2 is fixed in the socket fixing portion 21, and the socket fixing portion 21 is joined to the reflecting mirror 1.
[0012]
The light source unit 3 has an insulating cap ceramic member 31, and a metal cap power receiving member 32 that is screwed into the socket 2 is formed on one end of the cap ceramic member 31. A fixed substrate 33 is arranged in front of the other end side of the cap ceramic member 3. The fixed substrate 33 is fixed with a first light emitting diode 34 disposed toward the front opening 12 of the reflecting mirror 1 and a second light emitting diode 35 disposed toward the reflecting surface 11 of the reflecting mirror 1. Has been. Further, one end side of the rotation support member 36 for rotating the base porcelain member 31 and screwing the base power receiving member 32 into the socket 2 is fixed to the recess of the base porcelain member 31 by an adhesive, and the other end side is the front of the reflecting mirror 1. It extends toward the direction of the opening 12. The fixed substrate 33 is attached to the rotation support member 36 with the rotation support member 36 inserted through the center of the fixed substrate 33.
[0013]
That is, in the light source unit 3, the rotation support member 36 is fixed to the base porcelain member 31 having the base power reception member 32 in a state where the fixed substrate 33 to which the light emitting diodes 34 and 35 are fixed is attached to the rotation support member 36. Is.
[0014]
As shown in FIG. 2, the first light-emitting diode 34 and the second light-emitting diode 35 fixed to the fixed substrate 33 are equally spaced from each other toward the front opening 12 of the reflecting mirror 1 in this embodiment. 6 are arranged, and eight second light emitting diodes 35 are arranged at equal intervals in the direction of the reflecting surface 11 of the reflecting mirror 1 and connected.
[0015]
The light emitting diodes 34 and 35 are electrically connected to the current limiting resistor 5 and the diode bridge 6 fixed to the back surface of the fixed substrate 33 via the lead wire 4. A current flows through the base power receiving member 32 and the contact 37, and the light emitting diodes 34 and 35 are turned on.
[0016]
According to the illumination device having such a configuration, when the light source unit 3 is screwed and attached to the socket 2 at a position corresponding to the top opening 13 of the reflecting mirror 1, the rotation support member 36 is picked by hand, The light source unit 3 can be inserted into the inside of the reflecting mirror 1 from the opening 12 of the reflecting mirror 1, and after the insertion, when the base power receiving member 32 is in contact with the front of the socket 2, the rotation support member 36 is rotated. As a result, the light source unit 3 can be fixed while screwing the base power receiving member 32 into the socket 2 and making electrical contact.
As a result, even if the reflecting surface of the reflecting mirror 2 has a deep shape, the light source unit 3 can be reliably incorporated into the reflecting mirror 1 by an extremely simple operation of picking and rotating the rotation support member 36.
[0017]
FIG. 3 shows another embodiment of the lighting device according to the present invention, in which the reflecting mirror 1 and the socket 2 are separately fixed in a casing K constituting the lighting device.
Specifically, the socket 2 is fixed to a socket fixing portion 21, and the socket fixing portion 21 is arranged and fixed in the casing K by a socket fixing holder 22. The reflecting mirror 1 is fixed in the casing K by appropriate means, and the socket 2 is positioned at a position corresponding to the top opening 13 of the reflecting mirror 1.
The light source unit 3 is the same as in FIG. 1, and the function of the light source unit 3 to be screwed and fixed to the socket 2 is also the same as in FIG.
The difference from FIG. 1 is that the reflecting mirror 1 and the socket fixing portion 21 are independent members and are fixed to the casing K individually. The same reference numerals as those in FIG. 1 denote the same parts, and a description thereof will be omitted.
[0018]
According to the illuminating device having the structure shown in FIG. 3, when the light source unit 3 is screwed and attached to the socket 2 at a position corresponding to the top opening 13 of the reflecting mirror 1, as in the illuminating device of FIG. 1. The light source unit 3 can be inserted into the inside of the reflecting mirror 1 from the opening 12 of the reflecting mirror 1 while the rotary support member 36 is picked by hand. After the insertion, the base power receiving member 32 is placed in front of the socket 2. By rotating the rotation support member 36 in the contacted state, the light source unit 3 can be fixed while screwing the base power receiving member 32 into the socket 2 and making electrical contact.
As a result, even if the reflecting surface of the reflecting mirror 2 has a deep shape, the light source unit 3 can be reliably incorporated into the reflecting mirror 1 in the casing K by an extremely simple operation of picking and rotating the rotation support member 36. .
[0019]
FIG. 4 shows another embodiment of the lighting device of the present invention. The light source unit 3 is different from the lighting device shown in FIG. The rotation support member 36 of the light source unit 3 is provided with a diffusing and transmitting member 8 for diffusing and transmitting the light emitted from the first light emitting diode 34 in front of the first light emitting diode 34.
[0020]
The diffuse transmission member 8 is a translucent milky white plastic plate, and diffuses and transmits the light emitted from the first light emitting diode 34. That is, the first light emitting diode emits light in the direction of the opening 12 of the reflecting mirror 1, and when this light is seen directly, it feels dazzling, but because the light diffuses by the diffusing and transmitting member 8 in this way, Light emitted from the lighting device is softened so that glare is not felt even when the lighting device is viewed directly.
The light emitted from the second light emitting diode 35 becomes light reflected by the reflecting surface 11, and the light is slightly diffused by the reflecting surface 11, so that it does not feel dazzling.
[0021]
Although not shown, also in the illumination device shown in FIG. 3, diffusion for diffusing and transmitting light emitted from the first light emitting diode 34 in front of the first light emitting diode 34 of the rotation support member 36 of the light source unit 3. A transmissive member may be provided.
[0022]
FIG. 5 is an explanatory view showing a structure in which the fixed substrate 33 is attached to the rotation support member 36.
The rotation support member 36 has a thread groove P <b> 1 cut in an intermediate portion thereof, and a thread groove P <b> 2 is also cut in the inner surface of the center hole of the fixed substrate 33.
That is, by rotating the fixed substrate 33, the fixed substrate 33 moves in the direction in which the rotation support member 36 extends, that is, in the direction of the arrow in the figure.
A nut 91 is screwed onto the rotation support member 36 so as to sandwich the fixed substrate 33, and a spring 92 is wound around it. That is, the nut 91 and the fixed substrate 33 are rotated to position the fixed substrate 33 at an optimal position. In this state, the fixed substrate 33 is pressed between the nut 91 and the pressure by the spring 92. 33 is fixed. As a result, the fixed substrate 33 does not rotate and is fixed at a predetermined position.
[0023]
The advantage that the fixed substrate 33 can move in this way is that, as shown in FIGS. 1 and 3, the socket fixing portion 21 of the socket 2 and a part of the cap ceramic member 31 each serve as a positioning portion. By abutting at T, the position of the light source unit 3 is determined in the reflecting mirror 1. At this time, if the light emitting diodes 34 and 35 are not correctly positioned on the plane S including the focal point of the reflecting mirror 1, the light collection efficiency of the reflecting mirror 1 is deteriorated. The fixed substrate 33 is rotated and moved relative to the rotation support member 36, and the positions of the light emitting diodes 34 and 35 are finely adjusted. In this state, when the light source unit 3 is screwed and fixed to the reflecting mirror 1, the light emitting diodes 34 and 35 can be positioned at optimum positions, and optimum light collection efficiency can be obtained.
[0024]
【The invention's effect】
As described above, according to the lighting device of the present invention, when a lighting device having a reflecting mirror already on the market is used and a light source unit using a light emitting diode as a light source is incorporated in the reflecting mirror, the light source Since the rotation support member formed on the part can be picked and the light source part can be inserted and rotated, it is extremely easy to reliably incorporate the light source part into the reflector regardless of the shape of the reflector. Can do.
[0025]
In addition, since the diffuse transmission member is provided in front of the light emitting diodes arranged toward the opening direction of the reflecting mirror, the light emitted from the lighting device is softened, and even when the lighting device is viewed directly, the glare is reduced. I don't feel it.
[0026]
In addition, since the fixed substrate to which the light emitting diode is fixed is movable with respect to the rotation support member fixed to the base porcelain member, the position of the light emitting diode is set in advance before the light source unit is incorporated into the reflecting mirror. Since it can be finely adjusted to an optimum position with respect to the reflecting mirror, appropriate light collection efficiency can be obtained.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a lighting device of the present invention.
FIG. 2 is a front view showing only the light source part of the illumination device of FIG.
FIG. 3 is a side sectional view of another illumination device of the present invention.
FIG. 4 is a side sectional view of another lighting device of the present invention.
FIG. 5 is an explanatory diagram showing a structure in which a fixed substrate in a light source unit of the present invention is attached to a rotation support member.
FIG. 6 is an explanatory diagram of an illuminating device invention using a conventional incandescent bulb as a light source.
FIG. 7 is an explanatory diagram of a light source unit using a conventional light emitting diode.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Reflective mirror 11 Reflective surface 12 Front opening 2 Socket 21 Socket fixing | fixed part 23 Socket holder 31 Cap | bore porcelain member 32 Cap power receiving member 33 Fixed substrate 34 1st light emitting diode 35 2nd light emitting diode 36 Rotation support member 8 Diffuse transmission member 91 Nut 92 Spring K casing

Claims (3)

In the illumination device in which the reflecting mirror is arranged so as to surround the light source unit,
The reflector has a top opening, and a power feeding socket is disposed at a position corresponding to the top opening.
The light source part includes a base ceramic member in which a base power receiving member for screwing into the socket is formed on one end side, a fixed substrate to which a light emitting diode disposed toward the front opening of the reflecting mirror is fixed , A rotation support member for rotating the base porcelain member and screwing the base power receiving member into the socket;
The fixed substrate is attached to the rotation support member in a state where the rotation support member is inserted through the center of the fixed substrate,
One end side of the rotation support member is fixed to the base porcelain member, and the other end side penetrates the fixed substrate and is directed toward the front opening of the reflecting mirror toward the front opening direction of the reflecting mirror. A lighting device characterized by being extended .   The illuminating device according to claim 1, wherein the rotation support member is provided with a diffusion transmission member for diffusing and transmitting light emitted from the light emitting diode in front of the light emitting diode. Wherein said rotary support member to the center of the fixed substrate is screwed, the relative fixing substrate extension exists direction of the rotary supporting member, the lighting apparatus according to claim 1, characterized in that is movable .

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