JP2010123539A - Luminaire - Google Patents

Abstract

The present invention provides a lighting apparatus capable of a light distribution with various changes.
SOLUTION: Since a plurality of lighting fixtures 30 composed of a plurality of light emitting unit units 20 are arranged so that the irradiation direction of each lighting fixture 30 can be individually changed, a variety of light distribution characteristics can be obtained. Can do. Further, since each light source is covered with a light-transmitting cover 21, a cover that covers the entire lighting device 10 is not necessary, and the cost can be reduced.
[Selection] Figure 1

Description

  The present invention relates to an illumination device having a plurality of light sources with variable irradiation directions.

Conventionally, an illuminating device having a plurality of light sources and having variable light distribution characteristics has been proposed (see, for example, Patent Document 1).
In the light-emitting diode projector 100 as an illumination device described in Patent Document 1, a first light-emitting diode module 103 including a plurality of light-emitting diodes (LEDs) 102 that are mounted on a plate-like substrate 101 includes: It is fixedly arranged at the center. Around the first light emitting diode module 103, a second light emitting diode module 108 having a plurality of LEDs 106 mounted on a plate-like substrate 104 is arranged in an annular shape, and the first annular light emitting diode module is provided. A group 110 is configured. A second light emitting diode module 109 having a plurality of LEDs 107 mounted on a plate-like substrate 105 is disposed around the first annular light emitting diode module 110 in an annular shape, so that the second annular light emission is achieved. A diode module group 111 is configured.

The second light emitting diode modules 108 and 109 can be tilted in the radial direction from the central portion, and the second light emitting diode modules 108 and 109 are synchronized with each of the annular light emitting diode module groups 110 and 111. Tilt to rest at a desired position.
The first light emitting diode module 103 and the first and second annular light emitting diode module groups 110 and 111 are housed in a housing 112, and the front surface is covered with a transparent glass plate 113.

Thereby, the light distribution characteristic is changed.
JP 2004-241287 A

  However, in the conventional light emitting diode light projecting device 100 described in Patent Document 1 described above, since the entire surface of the light projecting device is collectively covered with the transparent glass plate 113, the petals of each of the substrates 104 and 105 are opened and closed. There is a limit to the inclination. In addition, since the substrates 104 and 105 are inclined in synchronization with each other, the change in the light distribution is constant, and a further change in the light distribution is desired.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus capable of a variety of light distribution.

  In the lighting fixture of the present invention, a light source is covered with a light-transmitting cover member to constitute a light emitting unit, a plurality of the light emitting unit are arranged to constitute a lighting fixture, and a plurality of the lighting fixtures are arranged. The lighting device is configured such that each of the lighting fixtures can individually change the irradiation direction.

  With this configuration, a plurality of lighting fixtures each including a plurality of light emitting unit units are arranged, and the irradiation direction of each lighting fixture can be individually changed, so that a variety of light distribution characteristics can be obtained. In addition, since each light source is covered with a light-transmitting cover, a cover that covers the entire lighting device is unnecessary, and the cost can be reduced.

  Moreover, the lighting fixture of this invention has the structure which provided the moving mechanism which changes the irradiation direction of the said lighting fixture.

  With this configuration, by controlling the moving mechanism, it is possible to move the luminaire and perform various light distributions.

  Furthermore, the lighting fixture of this invention has the structure which provided the spreading | diffusion element in front of the said light emission part unit or the front of the said lighting fixture.

  With this configuration, since the diffusing element is provided in front of each light source, the light rays from the light source are diffused, and the light distribution can be made uniform.

  According to the present invention, since a plurality of lighting fixtures constituted by a plurality of light emitting unit units are arranged and the irradiation direction of each lighting fixture can be individually changed, it is possible to obtain a light distribution characteristic rich in change. In addition, since each light source is covered with a light-transmitting cover, a cover that covers the entire lighting device is unnecessary, and a lighting fixture having the effect of reducing costs can be provided. .

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
Fig.1 (a) is a perspective view which shows the state before the movement of the lighting fixture concerning this Embodiment, FIG.1 (b) is a perspective view which shows an example of the state after movement, Fig.2 (a) is before movement. 2B is a side view seen from the direction B in FIG. 2A, FIG. 3A is a front view showing the state after movement, and FIG. 3B is FIG. (A) Side view seen from the middle B direction, FIG. 4 is a configuration diagram of the moving mechanism, (a) shows before movement, and (b) shows after movement.

  As shown in FIG. 1, in the lighting fixture 10 concerning embodiment of this invention, LED (illustration omitted) which is a light source is covered with the light-transmissive cover member 21, and the light emission part unit 20 is comprised. The lighting fixture 30 is configured by arranging a plurality (e.g., eight here) of the light emitting unit 20 at predetermined positions. Furthermore, the lighting fixture 10 is configured by arranging a plurality of (for example, seven) lighting fixtures 30 at predetermined positions.

  As shown in FIGS. 2 and 3, the lighting fixture 30 has, for example, a flat cylindrical fixture body 31, and a substrate 32 to which eight light emitting unit 20 are attached is attached to the opening. ing.

  As shown in FIG. 1, the seven lighting fixtures 30 are supported by the arrangement inside a flat bottomed cylindrical apparatus body support portion 11 (see FIG. 4) having an opening 111, for example, at the center. One lighting fixture 30 is provided, and six lighting fixtures 30 are arranged around the lighting fixture 30.

Each lighting fixture 30 is supported such that the irradiation direction can be changed.
FIG. 1A and FIG. 2A and FIG. 2B show a basic state in which all the lighting fixtures 30 are arranged on a plane. That is, the irradiation direction is parallel.
On the other hand, in FIG. 1B and FIGS. 3A and 3B, the lighting fixtures 30 other than the central lighting fixture 30 are inclined toward the center, and the concave surfaces are formed by the seven lighting fixtures 30. Therefore, the light beam can be collected at one point separated by a predetermined distance.

Next, an example of the moving mechanism 40 that changes the direction of the lighting fixture 30 will be described.
As shown in FIG. 4, the outer lighting fixture 30 (that is, a lighting fixture other than the central lighting fixture) is rotatable to the apparatus main body 11 support portion 11 at the center side end portion of the fixture main body 31 (rotating shaft 41). ) And a pressurizing spring 42 is provided at the outer end. The pressurizing spring 42 urges the outer end portion of the lighting fixture 30 in a direction away from the apparatus main body 11 support portion 11. As the pressurizing spring 42, a spring spring can be used.

  One end of a wire 43 is attached to the end of the outer lighting fixture 30 to which the pressurizing spring 42 is attached. The other end of the wire 43 is attached to a take-up pulley 46 attached to the rotating shaft of the motor 45 via an idle pulley 44.

Next, the rotation operation of the lighting fixture 30 will be described.
As shown in FIG. 4A, in the state before the movement, the wires 43 attached to the six lighting fixtures 30 arranged on the outside rotate the motor 45 in the direction of the arrow A to take up the pulley 46. It is wound up by. For this reason, the lighting fixture 30 rotates in the direction of arrow C against the biasing force of the pressurizing spring 42. In this state, all the lighting fixtures 30 are on one plane, and the irradiation direction is parallel to all the lighting fixtures 30.

As shown in FIG. 4 (b), when rotating the outer lighting fixture 10, the motor 45 is reversed in the direction of arrow B, and the wire 43 wound around the winding pulley 46 is fed out. As a result, the tension of the wire 43 urging the pressurizing spring 42 in the compression direction is weakened, and the outer end of the outer luminaire 130 is pushed and tilted in the direction of arrow D by the restoring force of the pressurizing spring 42.
Further, in order to return the tilted lighting fixture 30 to a flat state, the motor 45 may be rotated forward in the direction of arrow A and the wire 43 may be wound around the winding pulley 46.

As mentioned above, according to the lighting fixture apparatus 10 concerning embodiment of this invention demonstrated, the lighting fixture 30 comprised by the several light emission part unit 20 is arranged in multiple numbers, and the irradiation direction of each lighting fixture 30 is changed individually. Since it is possible, it is possible to obtain light distribution characteristics rich in change.
Moreover, since each LED is covered with the light-transmitting cover member 21, a cover that covers the entire lighting device 10 is not necessary, and the cost can be reduced.

In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the moving mechanism 40 that changes the irradiation direction of the luminaire 30 is exemplified by using the motor 45 and the wire 43, but is not limited thereto. A motor, a gear mechanism, etc., a solenoid, and a fluid pressure cylinder can also be used.

In the embodiment, the case where the central lighting fixture 30 is fixed and the surrounding lighting fixtures 30 are moved together has been described. However, each lighting fixture 30 is provided with a moving mechanism so as to be moved individually. It can also be.
In this case, it is possible to obtain orientation characteristics that are more varied.

  It is also possible to provide a diffusing element in front of the light emitting unit 20 or in front of the luminaire 30 to diffuse light rays from the light emitting unit 20 to make the light distribution uniform.

(A) is a perspective view which shows the state before the movement of the lighting fixture concerning this Embodiment, (b) is a perspective view which shows an example of the state after a movement. (A) is the front view which shows the state before a movement, (b) is the side view seen from B direction in (a). (A) is the front view which shows the state after movement, (b) is the side view seen from the B direction in Fig.3 (a). It is a block diagram of a moving mechanism, (a) is a block diagram before movement, (b) is a block diagram after movement. Front view of a conventional lighting device with variable irradiation direction

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Illuminating device 20 Light emission part unit 21 Cover member 30 Lighting fixture 40 Moving mechanism

Claims (3)

A lighting device comprising a light source covered with a light-transmitting cover member to form a light emitting unit, a plurality of the light emitting unit arranged to form a lighting fixture, and a plurality of the lighting fixtures arranged. And
A lighting fixture characterized in that each lighting fixture can individually change the irradiation direction.   The lighting fixture according to claim 1, further comprising a moving mechanism that changes an irradiation direction of the lighting fixture.   The luminaire according to claim 1, wherein a diffusion element is provided in front of the light emitting unit or in front of the luminaire.

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