JP2010192314A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire which can easily change light distribution while securing luminance in an illumination range which is long in one direction. <P>SOLUTION: As a plurality of light sources 22 are arranged along a longitudinal direction on a rectangular main apparatus body 20, the luminance is secured in the longitudinal direction. In addition, a sub apparatus body 30 is movably connected to the main apparatus body 20 and a plurality of light sources 32 are arranged along a longitudinal direction of the sub apparatus body 30. Therefore, the light distribution can be easily changed while securing the luminance by moving the sub apparatus body 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an illumination fixture that uses an LED as a light source and can easily change the light distribution.

Conventionally, the light distribution is changed by changing the direction of a light guide provided around the LED as a light source (see, for example, Patent Document 1).
As shown in FIG. 8, the lighting fixture 100 described in Patent Document 1 has a fixture body 101 fixed to the ceiling surface CE, and a plurality of LEDs 102 as light sources are attached to the lower surface of the fixture body 101. It has been. Around the instrument body 101, a plurality of plate-shaped light guides 103 are provided so as to be vertically rotatable with respect to the instrument body 101 on a substantially circumference so as to surround the plurality of LEDs 102.

  Therefore, the light distribution can be easily changed by appropriately rotating one or a plurality of light guides 103 as necessary. Thereby, for example, when eating, drinking or studying, reading, etc. on a dining table in a general house, the light guide body 103 is rotated by using the same lighting device 100, so that each situation can be changed. A corresponding light distribution state can be easily obtained.

JP 2007-80539 A (FIG. 1)

  However, in the luminaire 100 described in Patent Document 1 described above, the light guide 103 is provided substantially on the circumference, which is not suitable for obtaining a long light distribution in one direction. For example, when eating and drinking on a table that is long in one direction, there is a problem that the illuminance may be insufficient at the end in the longitudinal direction.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a luminaire that can easily change the light distribution while ensuring illuminance in an irradiation range that is long in one direction. .

  The lighting apparatus of the present invention has a rectangular main instrument body that is suspended from the ceiling, and a rectangular sub-apparatus body that is connected to the main instrument body in a movable state. A plurality of light sources are arranged along the direction, and the auxiliary instrument body has a configuration in which a plurality of light sources are arranged along the longitudinal direction.

  With this configuration, since a plurality of light sources are arranged along the longitudinal direction on the rectangular main instrument body, the illuminance can be ensured in the longitudinal direction. In addition, since the secondary instrument body is connected to the main instrument body in a movable state and a plurality of light sources are arranged along the longitudinal direction of the secondary instrument body, it is easy to ensure illuminance by moving the secondary instrument body. The light distribution can be changed.

  Moreover, the lighting fixture of this invention has the structure connected so that rotation up and down was possible with respect to the said main instrument main body.

  With this configuration, the light distribution can be easily changed by rotating the auxiliary instrument body in the vertical direction with respect to the main instrument body about the rotation axis provided in the main instrument body.

  Furthermore, the lighting fixture of this invention has the structure by which the said auxiliary instrument main body was rotatably connected with respect to the said main instrument main body.

  With this configuration, the light distribution can be easily changed by rotating the auxiliary instrument body relative to the main instrument body about the rotation axis provided in the main instrument body.

  In the present invention, since a plurality of light sources are arranged along the longitudinal direction on the rectangular main instrument body, the illuminance can be ensured in the longitudinal direction. In addition, since the secondary instrument body is connected to the main instrument body in a movable state and a plurality of light sources are arranged along the longitudinal direction of the secondary instrument body, it is easy to ensure illuminance by moving the secondary instrument body. It is possible to provide a lighting apparatus having an effect that the light distribution can be changed.

(A) is a perspective view which shows 1st Embodiment of the lighting fixture of this invention, (B) is explanatory drawing which shows a light distribution state (A) is sectional drawing which shows the connection part between the main instrument main body and the auxiliary instrument main body, (B) is the bottom view seen from B direction in (A) (A) is a perspective view which shows the state which rotated the sub-instrument main body downward, (B) is explanatory drawing which shows a light distribution state (A) is a perspective view which shows the state which rotated the sub-apparatus main body 180 degree | times, (B) is explanatory drawing which shows a light distribution state The perspective view which shows 2nd Embodiment of the lighting fixture of this invention. The perspective view which shows the state which rotated the auxiliary instrument main body to the downward direction The perspective view which shows the state which rotated the secondary instrument main body 180 degree | times. Sectional drawing showing a conventional lighting fixture

(First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment of this invention is demonstrated using drawing.
1A is a perspective view showing a first embodiment of a lighting fixture of the present invention, FIG. 1B is an explanatory view showing light distribution, and FIG. 2A is between a main fixture main body and a sub fixture main body. FIG. 2 (B) is a bottom view seen from the direction B in FIG. 2 (A), FIG. 3 (A) is a perspective view showing a state in which the auxiliary instrument body is rotated downward, FIG. 3B is an explanatory view showing the light distribution, FIG. 4A is a perspective view showing a state where the auxiliary instrument body is rotated 180 degrees, and FIG. 4B is an explanatory view showing the light distribution.

  As shown in FIG. 1, the lighting fixture 10 according to the first embodiment of the present invention is used by being suspended from a ceiling 11, and has a rectangular main fixture body 20 that is suspended from the ceiling 11. The main instrument body 20 is suspended by a suspension member 12 having one end attached to the ceiling 11 and supplied with electric power.

  The main instrument body 20 has a rectangular shape as a whole, and a plurality of LEDs 22 as light sources are provided on the lower surface 21 along the longitudinal direction of the main instrument body 20 (left and right direction in FIG. 1A). Sub instrument main bodies 30 and 30 are provided at both ends in the longitudinal direction of the main instrument main body 20 in a movable state. The sub-tool main body 30 has an overall rectangular shape, and a plurality of LEDs 32 serving as light sources are provided on the lower surface 31 along the longitudinal direction of the sub-tool main body 30. As shown in FIG. 2, lenses 23 and 33 are attached in front of the LEDs 22 and 32 to protect the LEDs 22 and 32 and extend the light irradiation range from the LEDs 22 and 32 to a predetermined range. Yes.

  As shown in FIG. 2, the auxiliary instrument body 30 is connected to the main instrument body 20 in a movable state via a connecting portion 40. In addition, since the connection part 40 of the sub instrument main bodies 30 and 30 provided in the left-right both sides in FIG. 1 of the main instrument main body 20 is common, in FIG. 2, connection of the sub instrument main body 30 of the left side in FIG. 1 is shown.

On the end face 26 of the main instrument main body 20, a connecting bracket 24 projects outwardly at the lower ends of the left and right ends, and has a rotating shaft 25 at the tip. The right side surface of the connection main body 41 of the connection portion 40 is connected to the main instrument main body 20 by the rotation shaft 25 so as to be rotatable in the vertical direction (the direction of the arrow A1 in FIG. 2A). A rotating shaft 42 projects outwardly from the left side surface of the connecting body 41, and the auxiliary instrument body 30 is attached to the rotating shaft 42 so that it can rotate and does not fall off.
Note that “rotation” refers to movement in an open / closed state about the rotation axis 25, and “rotation” refers to rotation about the rotation axis 42.

  Accordingly, in the state where the auxiliary instrument bodies 30 and 30 are straightly extended with respect to the main instrument body 20 as shown in FIG. 1A, as shown in FIG. Can be illuminated with a predetermined illuminance. For example, it is suitable as lighting when eating using a long table or the like.

  Further, FIG. 3 shows a case where both the auxiliary instrument bodies 30, 30 are rotated downward (in the direction of the arrow in FIG. 3A) around the rotation shaft 25 from the state shown in FIG. Yes. In this state, the light from the auxiliary instrument main body 30 is irradiated to the main instrument main body 20 side, and the central part can be illuminated brightly. For example, this is suitable for reading or studying at the center of the table.

Further, FIG. 4 shows a case where the two auxiliary instrument bodies 30, 30 are rotated around the rotation shaft 42 (in the direction of the arrow in FIG. 4A) from the state shown in FIG. That is, the lower surface 31 and the LED 32 of the auxiliary instrument body 30 face the ceiling 11, and the upper surface 34 (see FIG. 1) of the auxiliary instrument body 30 faces downward. In this state, light from the LED 32 of the sub-tool main body 30 is irradiated to the ceiling 11, and the room can be illuminated with reflected light from the ceiling 11 and direct light from the main device main body 20. For example, it is suitable when relaxing indoors.
Although not shown, it is possible to rotate the auxiliary instrument body 30 around the rotation shaft 42 from the state shown in FIG.

  As mentioned above, according to the lighting fixture 10 concerning 1st Embodiment of this invention demonstrated, since several LED22 was arrange | positioned along the longitudinal direction in the main fixture main body 20 of a rectangle, it can ensure illumination intensity in a longitudinal direction. it can. Moreover, since the secondary instrument main body 30 is connected to the main instrument main body 20 in a movable state and a plurality of LEDs 32 are arranged along the longitudinal direction of the secondary instrument main body 30, the illuminance can be reduced by moving the secondary instrument main body 30. The light distribution can be easily changed while ensuring.

  Further, since the auxiliary instrument body 30 is connected to the main instrument body 20 so as to be vertically rotatable, it is easy to rotate the auxiliary instrument body 30 in the vertical direction with respect to the main instrument body 20. The light distribution can be changed.

  Furthermore, since the secondary instrument body 30 is rotatably connected to the main instrument body 20, for example, the ceiling 11 can be irradiated by rotating the secondary instrument body 30 relative to the main instrument body 20. The light distribution can be easily changed.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment of this invention is demonstrated using drawing.
FIG. 5 is a perspective view showing a second embodiment of the lighting fixture of the present invention, FIG. 6 is a perspective view showing a state in which the sub fixture main body is rotated downward, and FIG. 7 is a state in which the sub fixture main body is rotated 180 degrees. FIG. In addition, suppose that the same code | symbol is attached | subjected to the site | part common to the lighting fixture concerning 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

As shown in FIG. 5, the luminaire 10 </ b> B according to the second embodiment of the present invention has sub-apparatus main bodies on both the left and right sides (the sides orthogonal to the longitudinal direction) of a rectangular main apparatus main body 20 </ b> B suspended from the ceiling 11. 30B and 30B are provided in a movable state. A plurality of LEDs 22 and 32 are provided along the longitudinal direction of the main instrument body 20B and the left and right auxiliary instrument bodies 30B.
In addition, the connection part 40 between the main instrument main body 20B and sub instrument main bodies 30B and 30B is the same as that of what was mentioned above (refer FIG. 2).

  Therefore, as shown in FIG. 5, in a single plane state in which the auxiliary instrument main bodies 30B and 30B are straightly extended with respect to the main instrument main body 20B, it is possible to illuminate with a predetermined illuminance along the longitudinal direction of the lighting instrument 10. .

  Further, as shown in FIG. 6, from the state shown in FIG. 5, by rotating the auxiliary instrument bodies 30B, 30B downward (in the direction of the arrow in FIG. 6) around the rotation shaft 25, Is irradiated to the main instrument body 20B side, and the central part can be illuminated brightly.

  Further, as shown in FIG. 7, from the state shown in FIG. 5, by rotating the secondary instrument body 30B around the rotation axis 42 (in the direction of the arrow in FIG. 7), the light from the LED 32 of the secondary instrument body 30B is emitted. The ceiling 11 can be irradiated. Thereby, the room can be illuminated with the reflected light from the ceiling 11 and the direct light from the main instrument body 20.

  In FIG. 7, only one auxiliary instrument body 30 </ b> B is rotated, but both auxiliary instrument bodies 30 </ b> B and 30 </ b> B can be rotated. Moreover, it is also possible to further rotate around the rotating shaft 42 from the state where the auxiliary instrument body 30 shown in FIG. 6 is rotated.

  As mentioned above, according to the lighting fixture 10B concerning 2nd Embodiment of this invention demonstrated, illumination intensity can be ensured to a longitudinal direction similarly to the lighting fixture 10 concerning 1st Embodiment mentioned above. Further, by moving the auxiliary instrument body 30B, it is possible to easily change the light distribution while ensuring the illuminance.

  In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Ceiling 20 Main fixture main body 22 LED (light source)
30 Sub-apparatus body 32 LED (light source)

Claims (3)

A rectangular main instrument body suspended from the ceiling;
A rectangular secondary instrument body connected in a movable state to the main instrument body,
While arranging a plurality of light sources along the longitudinal direction in the main instrument body,
A lighting fixture characterized in that a plurality of light sources are arranged along the longitudinal direction in the auxiliary fixture body.   The lighting apparatus according to claim 1, wherein the sub-apparatus main body is connected to the main apparatus main body so as to be rotatable up and down.   The lighting apparatus according to claim 1, wherein the sub-apparatus body is rotatably connected to the main apparatus body.

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