JP2003173701A - Illumination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination device which uses a light-emitting diode for the light source utilizing an illumination device having a reflecting mirror that is already on the market. <P>SOLUTION: In the illumination device, a socket 2 is arranged at the position corresponding to the top part opening 13 of a reflecting mirror 1, and the light source part 3 comprises a base ceramic member 31 formed with a base receiving member 32 for screwing to the socket 2, a fixed substrate 33 on which light- emitting diodes 34, 35 are fixed, and a rotating support member 36 for screwing the base receiving member 32 to the socket 2 by rotating the base ceramic member 31. One end of the rotating support member 36 is fixed to the base ceramic member 31 and the other end extends toward the front opening 12 of the reflecting mirror 1, and the fixed substrate 33 is fitted to the rotating support member 36. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device using a light emitting diode as a light source.

[0002]

2. Description of the Related Art Conventionally, as an illumination device for spot illumination, an illumination device in which an incandescent lamp is arranged inside a reflecting mirror has been used. Since these illuminating devices use an incandescent light bulb, they consume a large amount of power and have a thermal effect. Therefore, recently, an illuminating device using a light emitting diode as a light source has been developed.

In order to popularize the illuminating device using the light emitting diode as a light source, an illuminating device using an incandescent light bulb already on the market as a light source, that is, directing the light condensed by a reflecting mirror in a certain direction is used. It is believed to be most effective to utilize the illuminating device that is emitted and to utilize the light emitting diode when replacing the light source when the incandescent bulb is burnt out.

[0004]

However, in the illuminating device using such an incandescent lamp as a light source, as shown in FIG. 6, the power feeding socket 2 is incorporated inside the reflecting mirror 1, and this socket 2 is used. It was not possible to directly install the light emitting diode in place of the incandescent light bulb. Note that FIG. 6 also shows the incandescent light bulb 9 screwed into the socket.

In order to solve such a problem, Japanese Unexamined Patent Application Publication No.
In No. 001-52504, as shown in FIG. 7, a light source unit A is provided by attaching a substrate 120 in which a plurality of light emitting diodes 110 are arranged to a base power receiving member 10 that can be mounted in a socket 2.
It is described that 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 the light source unit A and attach it to the socket 2 while holding the substrate 120.

Therefore, the present invention has been made in view of the above problems, and provides an illuminating device using a light emitting diode as a light source by utilizing an illuminating device having a reflecting mirror which is already on the market. Especially.

[0007]

In order to solve the above-mentioned problems, a lighting device according to a first aspect of the present invention is a lighting device in which a reflecting mirror is arranged so as to surround a light source part, and has the reflecting mirror top opening. A socket for power supply is arranged at a position corresponding to the top opening, and the light source unit has a base porcelain member having a base power receiving member for screwing into the socket formed on one end side, and a light emitting diode. Has a fixed base plate and a rotation support member for rotating the mouthpiece porcelain member to screw the mouthpiece power receiving member into the socket, and one end side of the rotation support member is fixed to the mouthpiece porcelain member. The other end extends toward the front opening direction of the reflecting mirror, and the fixed substrate is attached to the rotation support member.

An illumination device according to a second aspect of the present invention is the illumination device according to the first aspect, and in particular, the rotation support member is provided in front of the light emitting diode with light emitted from the light emitting diode. It is characterized in that a diffusion transmission member for diffusion transmission is provided.

An illumination device according to a third aspect is the illumination device according to the first aspect, and in particular, the rotation support member is inserted through the center of the fixed substrate, and the fixed substrate is the rotation support member. It is characterized in that it is movable in the extending direction of.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A lighting device of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of an illuminating device of the present invention, and FIG. 2 is a front view showing only a light source section described later.

In the reflecting mirror 1, the reflecting surface 11 is a spheroidal surface, an opening 12 for emitting light is formed in the front, and a metallic spiral power supply is provided at a position corresponding to the top opening 13 of the reflecting mirror 1. The socket 2 is arranged. The socket 2 is fixed in the socket fixing portion 21, and the socket fixing portion 21 is joined to the reflecting mirror 1.

The light source section 3 has an insulative base porcelain member 31, and a metal base power receiving member 32 screwed into the socket 2 is formed at one end of the base porcelain member 31. A fixed substrate 33 is arranged in front of the other end of the base porcelain member 3. On this fixed substrate 33, the first light emitting diode 34 arranged toward the front opening 12 of the reflecting mirror 1 is arranged.
And a second surface arranged in the direction of the reflecting surface 11 of the reflecting mirror 1.
The light emitting diode 35 is fixed. Further, one end side of a rotation support member 36 for rotating the base porcelain member 31 to screw the base power receiving member 32 into the socket 2 is fixed to the concave portion of the base porcelain member 31 with an adhesive, and the other end side is in front of the reflecting mirror 1. It extends toward the opening 12. The fixed substrate 33 is attached to the rotation support member 36 with the rotation support member 36 being inserted through the center of the fixed substrate 33.

That is, the light source unit 3 includes the light emitting diode 3
The fixed substrate 33, to which the fixed members 4, 35 are fixed, is the rotation support member 36.
The rotation support member 36 is fixed to the base porcelain member 31 having the base power receiving member 32 in a state of being attached to.

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 such that the first light emitting diode 34 is directed toward the front opening 12 of the reflecting mirror 1 in this embodiment. 6 are arranged at even intervals, and the second light emitting diodes 35 are arranged and connected at equal intervals toward the reflecting surface 11 of the reflecting mirror 1.

The light emitting diodes 34 and 35 are electrically connected to the current limiting resistor 5 fixed to the back surface of the fixed substrate 33 and the diode bridge 6 through the lead wire 4, and the diode bridge 6 is connected to the leads. An electric current flows from the line 7 to the base power receiving member 32 and the contact 37 to turn on the light emitting diodes 34 and 35.

According to the illumination device having such a structure, when the light source unit 3 is screwed into the socket 2 at a position corresponding to the top opening 13 of the reflecting mirror 1 and mounted, the rotation support member 36 is picked by hand. In this state, the light source unit 3 can be inserted into the reflecting mirror 1 through 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 supporting member 36. It is possible to fix the light source unit 3 while rotating the base member very easily and screwing the base power receiving member 32 into the socket 2 for electrical contact. As a result, even if the reflecting surface of the reflecting mirror 2 has a deep shape, the rotation supporting member 36 is pinched and rotated,
The light source unit 3 can be reliably incorporated into the reflecting mirror 1.

FIG. 3 shows another embodiment of the illuminating device of the present invention, in which a reflecting mirror 1 and a socket 2 are separately fixed in a casing K constituting the illuminating device. Specifically, the socket 2 is fixed to the socket fixing portion 21, and the socket fixing portion 21 is arranged and fixed in the casing K by the socket fixing holder 22. The reflecting mirror 1 is fixed in the casing K by an appropriate means, and the socket 2 is located at a position corresponding to the top opening 13 of the reflecting mirror 1. The light source unit 3 is similar to that of FIG. 1, and the function of the light source unit 3 to be screwed into and fixed to the socket 2 is also similar to that of FIG. The difference from FIG. 1 is that the reflecting mirror 1 and the socket fixing portion 21 are independent members, and are individually fixed to the casing K. The same reference numerals as those in FIG. 1 indicate the same parts, and a description thereof will be omitted.

According to the lighting device having the structure shown in FIG. 3, the top opening 1 of the reflecting mirror 1 is similar to the lighting device shown in FIG.
When the light source unit 3 is screwed into the socket 2 at a position corresponding to 3 and mounted, the light source unit 3 is inserted into the reflection mirror 1 from the opening 12 of the reflection mirror 1 with the rotation support member 36 being held by hand. It can be inserted, and after insertion, when the mouthpiece power receiving member 32 is in contact with the front of the socket 2, by rotating the rotation supporting member 36, the mouthpiece power receiving member 32 is screwed into the socket 2 very easily. It is possible to fix the light source unit 3 while making electrical contact. As a result, even if the reflecting surface of the reflecting mirror 2 is deep, the light source unit 3 can be reliably incorporated into the reflecting mirror 1 inside the casing K by an extremely simple operation of pinching and rotating the rotation supporting member 36. .

FIG. 4 shows another embodiment of the illuminating device of the present invention, which is different from the illuminating device shown in FIG. 1 in the light source section 3. The rotation support member 36 of the light source unit 3 is provided with a diffusion transmission member 8 in front of the first light emitting diode 34 for diffusing and transmitting the light emitted from the first light emitting diode 34.

The diffusion / transmission member 8 is a translucent milky white thin plastic plate, and the first light emitting diode 3
The light emitted from 4 is diffused and transmitted. That is, the first light emitting diode emits light toward the opening 12 of the reflecting mirror 1 and feels dazzling when directly seeing this light, but since the light is diffused by the diffusion transmission member 8 in this way, The light emitted from the lighting device is softened so that glare is not felt even when the lighting device is directly viewed. The light emitted from the second light emitting diode 35 becomes the light reflected by the reflecting surface 11, and the light is slightly diffused by the reflecting surface 11, so that it is not a glare.

Although not shown, also in the lighting device shown in FIG. 3, the light emitted from the first light emitting diode 34 is diffused and transmitted in front of the first light emitting diode 34 of the rotation supporting member 36 of the light source section 3. A diffuse transmission member may be provided.

In FIG. 5, the fixed substrate 33 is a rotation supporting member 36.
It is explanatory drawing which shows the structure attached to. The rotation support member 36 has a thread groove P1 cut in its intermediate portion, and a thread groove P2 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, the direction of the arrow in the figure. Then, a nut 91 is screwed into the rotation support member 36 so as to sandwich the fixed substrate 33, and a spring 92 is wound. That is, the nut 91 and the fixed substrate 33 are rotated to position the fixed substrate 33 at the optimum position, and in this state, the pressure of the spring 92 presses the fixed substrate 33 between the nut 91 and the fixed substrate 33, and 33 is fixed. As a result,
The fixed substrate 33 does not rotate and is fixed at a predetermined position.

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 base porcelain member 31 play a role of positioning, respectively. The position of the light source part 3 is determined in the reflecting mirror 1 by abutting at the tapered part T. At this time, the light emitting diode 3 is placed on the plane S including the focus of the reflecting mirror 1.
If 4, 35 are not correctly positioned, the light collection efficiency by the reflecting mirror 1 deteriorates. Therefore, before the light source unit 3 is inserted into the reflecting mirror 1, the fixed substrate 33 is rotated in advance and moved with respect to the rotation support member 36. Then, the positions of the light emitting diodes 34 and 35 are finely adjusted. Then, 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]

As described above, according to the illuminating device of the present invention, the illuminating device having the reflecting mirror which is already on the market is utilized, and the light source part using the light emitting diode as the light source is provided in the reflecting mirror. When assembled, the rotation support member formed on the light source unit can be picked up and inserted into the light source unit for rotation, so that the light source unit can be very easily and reliably mounted regardless of the shape of the reflecting mirror. It can be incorporated into a reflector.

Further, since the diffuse transmission member is provided in front of the light emitting diode arranged toward the opening direction of the reflecting mirror, the light emitted from the illuminating device is softened, and even when the illuminating device is viewed directly, I don't feel glare.

Further, 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 light emitting diode is previously prepared before the light source section is incorporated into the reflecting mirror. Since the position of can be finely adjusted to the optimum position with respect to the reflecting mirror, an appropriate light collecting efficiency can be obtained.

[Brief description of drawings]

FIG. 1 is a side sectional view of a lighting device of the present invention.

FIG. 2 is a front view showing only a light source section of the lighting device of FIG.

FIG. 3 is a side sectional view of another lighting 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 view showing a structure in which the fixed substrate in the light source unit of the present invention is attached to the rotation supporting member.

FIG. 6 is an explanatory diagram of an illumination device invention using a conventional incandescent light 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]

1 reflector 11 Reflective surface 12 front opening 2 socket 21 Socket fixing part 23 Socket holder 31 mouthpiece porcelain member 32 Clasp power receiving member 33 fixed board 34 First light emitting diode 35 Second light emitting diode 36 Rotation support member 8 Diffuse transmission member 91 nuts 92 spring K casing

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Claims (3)

[Claims] 1. A lighting device in which a reflecting mirror is arranged so as to surround a light source unit, wherein the reflecting mirror has a top opening, and a power supply socket is arranged at a position corresponding to the top opening. The light source unit is a base ceramic member having a base power receiving member for screwing into the socket formed on one end side, a fixed substrate to which a light emitting diode is fixed, and the base power receiving member by rotating the base ceramic member. A rotary support member for screwing into the socket, wherein the rotary support member has one end fixed to the base porcelain member and the other end extending toward the front opening direction of the reflecting mirror; Is attached to the rotation support member. 2. The rotation supporting member is provided with a diffusion transmitting member for transmitting and diffusing light emitted from the light emitting diode in front of the light emitting diode. Illumination device described. 3. The rotation supporting member is inserted through the center of the fixed substrate, and the fixed substrate is movable in a direction in which the rotation supporting member extends. The lighting device according to.