JP5733808B2 - Lighting device and desk lamp - Google Patents

Description

  The present invention relates to a lighting device and a desk lamp.

  In recent years, there has been an increase in the use of LEDs instead of fluorescent lamps as light sources for lighting devices. As for a learning stand or a reading light for illuminating a hand or the like, there is a lighting device of a type using an LED from a fluorescent light type.

  Patent Document 1 discloses an epoch-making illumination device that can freely adjust the illumination range of light in a user's favorite style with a simple operation, and the technology deforms a base portion provided with a light emitting element. By making it possible, the illumination range of light is adjusted.

  Patent Document 2 describes an illumination device that can selectively illuminate a desired region without using illumination in a useless direction. A plurality of lamp units using the lamp are rotatably supported, and the light emission direction is selected according to the arrangement position of the lamp units.

Registered Utility Model No. 3127995 JP 2007-66658 A

  In the illuminating device of Patent Document 1, since the base body itself on which the light source is mounted is deformed, there is a risk of a connection failure to the light source due to the degree of deformation or repeated deformation. In addition, when the base portion is deformed so that the light source is positioned at a predetermined location for condensing, the amount of heat generated at the location where the light source is concentrated increases, and the temperature rise may affect the lighting device.

  In Patent Document 2, it is not only necessary to have a plurality of lamp units, but the light emission is adjusted by the position where the lamp units are arranged, but a certain space for movement is required.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an illumination device and a desk lamp that can be arranged in a space-saving place and can easily adjust the illumination range without impairing the appearance. .

The lighting device according to the first aspect of the present invention is:
A substrate holding a light emitting element and having a lever;
A hole for slidably guiding the lever, and a cover for holding the substrate movably;
Equipped with a,
The substrate is supported at one end by the cover and rotates around the one end.
It is characterized by that.
The illumination device according to the second aspect of the present invention is:
A substrate holding a light emitting element and having a lever;
A hole for slidably guiding the lever, and a cover for holding the substrate movably;
With Sede,
With
The cover is attached to the shade;
It is characterized by that.

A desk lamp according to a third aspect of the present invention provides:
A lighting device comprising: a substrate that holds the light emitting element and has a lever; and a cover that is formed with a hole that slidably guides the lever and holds the substrate movably .
A lighting circuit for lighting the light emitting element;
A main body housing the lighting circuit;
An arm unit that rotatably supports the lighting device and connects the lighting device and the main body;
A base that is attached to the main body and supports the lighting device, the arm, and the main body;
It is characterized by providing.

  According to the present invention, it is possible to arrange in a space-saving place, and it is possible to easily adjust the illumination range without impairing the appearance.

It is a schematic plan view which shows the structural example of the illuminating device which concerns on Embodiment 1 of this invention. The figure seen from the direction of the irradiated side is shown. It is a side view which shows the structural example of an illuminating device, and the figure which looked at the illuminating device of FIG. 1 from the direction of the side surface side is shown. It is a figure which shows operation | movement of the light source part of an illuminating device. It is a figure which shows the illumination range at the time of operation | movement of the light source part of an illuminating device. FIG. 11 is a plan view of an illumination device (light source unit) according to Modification 1 of Embodiment 1. FIG. 12 is a plan view of an illumination device (light source unit) according to Modification 2 of Embodiment 1. It is a schematic block diagram which shows the structural example of the desk lamp which concerns on Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

(Embodiment 1)
FIG. 1 is a schematic plan view showing a configuration example of the illumination device according to Embodiment 1 of the present invention, and shows a view seen from the direction of the irradiated side. FIG. 2 is a side view showing a configuration example of the lighting device, and shows a view of the lighting device of FIG. 1 as viewed from the side. In the present invention, an LED element is used as the light source of the lighting device, and power saving and long-time lighting are possible.

  The lighting device 1 includes a main body 18 and a light source 20. The main body 18 houses a lighting circuit 17 for lighting the light source unit 20. The lighting circuit 17 is connected to the outside, and the light source is illuminated by supplying electric power from the outside to the light source unit 20. For example, when the light source used in the light source unit 20 is the LED element 11, when 100 V AC power is supplied to the light source unit 20, a pulsating voltage is generated to apply the AC voltage to the series circuit using a rectifier first. Then, it is necessary to apply a voltage to the LED element 11 to light the LED element 11.

  The lighting device 1 may have a mechanism capable of directly supplying power from the outside to the light source unit 20 without having the lighting circuit 17. In this case, in order to light the LED element 11, it is necessary to supply a DC voltage.

  The light source unit 20 includes an LED element 11, an LED substrate 12, a lever 13, a support shaft 14, a cover 15, and a hole 16.

  The plurality of LED elements 11 are disposed on the LED substrate 12. By moving the LED substrate 12, the plurality of LED elements 11 move together and the irradiation position can be changed. Further, by arranging the LED elements 11 together on the LED substrate 12, wiring and power supply can be facilitated and the appearance can be made preferable.

  The LED substrate 12 is movably supported on the surface of the shade 10 that faces the object to be irradiated. When the LED board 12 is moved, the LED board 12 is operated by holding the lever 13 formed so as to be fixedly attached to the LED board 12. Actually, the LED board 12 is covered with a cover 15, and the lever 13 is passed through a hole 16 formed in the cover 15. By operating the lever 13 directly by hand, the LED substrate 12 arranged inside the cover 15 can be moved in accordance with the movement of the lever 13 sliding inside the hole 16.

  In the above-described case, one end of the LED substrate 12 is fixed to the shade 10 with the support shaft 14, and the lever 13 is formed on the other end portion of the LED substrate 12 that is not fixed to the support shaft 14. The movable region of the substrate 12 can be limited and rotated. As a result, the LED substrate 12 can be easily determined at a predetermined position (predetermined orientation), and the reproducibility of a desired illumination pattern is increased.

  The LED substrate 12 on which the LED element 11 is disposed and / or the shade 10 that supports the LED substrate 12 may use a material that reflects light on the surface facing the irradiated object. The illuminance efficiency can be increased by reflecting the light.

  The cover 15 protects the LED element 11 and adjusts the illumination range and color of the LED element 11 and is formed of a material that transmits light, such as acrylic. The cover 15 is made of a material that diffuses the light from the LED element 11 or is shaped to diffuse the light, so that the light from the LED element 11 having the characteristics of a point light source can be used as a surface light source. It is possible to achieve near light irradiation.

  The hole 16 formed in the cover 15 is provided to guide the sliding position of the lever 13 to determine the movable position and to operate the LED element 11 from the outside. The hole 16 is provided with a gap between the hole 16 and the lever 13 in a portion where the lever 13 penetrates and slides along a track for operating the LED element 11 so as not to deteriorate the above function as the cover 15. It is preferable to form.

  The lighting device 1 of FIG. 2 is directly attached to the ceiling or the like, and the position of the light source unit 20 itself cannot be moved, but the position of the LED substrate 12, that is, the LED element, can be moved only by operating the lever 13 directly. 11 can be moved, and the irradiation position can be easily changed. The lighting device 1 can be applied to, for example, a reading lamp, a hand lamp, a shelf lamp, a wash lamp, and the like.

  FIG. 3 is a diagram illustrating the operation of the light source unit of the lighting device, and shows a state in which the cover 15 is removed. The double-headed arrow in the figure is the direction of movement of the lever 13 and actually slides in the hole 16 formed in the cover 15.

  In FIG. 3A, the left and right LED boards 12 are arranged on a straight line, and the LED elements 11 are also arranged on the LED board 12 in a straight line. In FIG. 3B, the two LED substrates 12 fixed by the support shaft 14 near the center portion of the shade 10 are rotated and arranged in a square shape. FIG. 3B shows a state in which the LED board 12 and the LED element 11 are operated by operating the lever 13 from the state of FIG.

  FIG. 4 is a diagram illustrating an illumination range during operation of the light source unit of the illumination device. The arrow in the figure represents the irradiation direction D, and the dotted line surrounding the arrow represents the illumination range S. A portion where the illumination range S overlaps is set as an illumination range W by hatching. The illumination range W is a portion of light that is stronger than the illumination range S and increases in brightness.

  As shown in FIG. 3, the LED substrate 12 of the light source unit 20 can be operated to vary the arrangement of the LED elements 11. The LED elements 11 are arranged in the shape of a letter C in FIG. 4A, a straight line in FIG. 4B, and a reverse letter C in FIG.

  4 (a) to 4 (c), a person using the lighting device 1 can select the illumination range S and the irradiation direction D suitable for the intended use and purpose by operating the lever 13. it can. In FIG. 4A, the LED element 11 is oriented so that the irradiation direction D of the LED element 11 is concentrated at a certain point, and the portion where the illumination range S overlaps, that is, the illumination range W is the largest. At this time, the illumination range S as a whole becomes small. In FIG. 4C, the LED element 11 is oriented so that the irradiation direction D of the LED element 11 faces in a different direction, there is no illumination range W that is an overlapping portion of the illumination range S, and the illumination range S is the widest. .

  FIG. 5 is a plan view of an illumination device (light source unit) according to Modification 1 of Embodiment 1. FIG. 6 is a plan view of an illumination device (light source unit) according to Modification 2 of Embodiment 1. 5 and 6 are examples in which the arrangement of the LED elements 11 is different.

  In FIG. 5, in addition to the movable LED board 12, a fixed LED board 19 is provided. FIG. 6 shows a type in which the LED substrate 12 does not have the support shaft 14 and is provided with levers 13 at both ends. The movable range of the LED board 12 is limited by a hole 16 formed in the cover 15, and the operation of the lever 13 causes the LED board 12 to move in the horizontal direction without rotating.

(Embodiment 2)
FIG. 7 is a schematic configuration diagram showing a configuration example of a table lamp according to Embodiment 2 of the present invention. The light source unit 20 has the same basic structure as the light source unit 20 of the illumination device 1 according to the first embodiment.

  The table lamp 2 includes a main body 18, a light source 20, an arm 21, a base 22, an arm support 23 and a light source support 24. The main body 18 houses a lighting circuit 17 for lighting the light source of the light source unit 20.

  The base 22 maintains the light source unit 20, the arm unit 21, and the main body unit 18 so as not to fall down.

  The arm support part 23 supports the arm part 21 and the main body part 18 in a rotatable manner, and stops and supports the arm part 21 and the main body part 18 at a predetermined position. The light source support part 24 supports the light source part 20 and the arm part 21 so that rotation is possible, and stops and supports in a predetermined position.

  The table lamp 2 includes a base 22, a main body 18, an arm support 23, an arm 21, a light source support 24, and a light source 20 in this order from the place where it is placed. With the arm support 23 and / or the light source support 24 as an axis, the position is moved by tilting the arm 21 and / or the light source 20 to a predetermined position, etc., and the irradiated position and light intensity (brightness) Adjust.

  In order to adjust the brightness to a predetermined level, the arm unit 21 and / or the light source unit 20 is moved to adjust the position of the light source unit 20, or the lever 13 of the light source unit 20 is operated to adjust the position of the LED substrate 12. That is, the LED element 11 can be moved and adjusted to a predetermined brightness. Further, the irradiation position is adjusted in the same manner. The brightness of the light source and the irradiated position may be adjusted by moving the arm unit 21 and / or the light source unit 20 and adjusting the position of the LED element 11.

  When there is a possibility that the position of the light source unit 20 is lowered and the work space is narrowed, or when there is no space for moving the light source unit 20 itself, the desk lamp 2 operates the lever 13 to facilitate the brightness of the light source. The sheath irradiation position can be adjusted.

  As described above, according to the present invention, it can be arranged in a space-saving place, and the illumination range can be easily adjusted without impairing the appearance.

  When adjusting the illumination range, it is possible to easily select either light collection or light diffusion simply by moving the lever. In addition, since the movable range of the lever is determined, the reproducibility of the illumination range and brightness can be enhanced. Furthermore, the LED element can be easily moved for each LED substrate by directly operating the lever by hand. Since the LED element can maintain the state of being arranged on the LED substrate, the LED element remains at an equal interval, and the influence of illuminance efficiency due to heat generation can be reduced. In addition, by moving each LED board, it becomes difficult for wiring problems such as power lines to be entangled when the lever is operated, that is, when the LED element moves, and connection failures are reduced. Furthermore, since the movable range of the LED substrate is limited, there is no possibility that the wiring is drawn more than necessary, and connection failure is unlikely to occur.

  Since the LED element is used as the light source of the lighting device, power saving and long-time lighting are possible, and labor for replacement can be saved as much as possible. Moreover, manufacture and an assembly can be easily performed by arrange | positioning an LED element on a board | substrate and using it for a light source as an LED board.

  In this embodiment, the example explaining the number of light sources, the number of light source substrates, the light source position, the movable range of the light source, etc. of the light source unit of the lighting device is an example, and can be arbitrarily set without being limited to the above example. It is. The combination with a fixed light source, the position where the light source is disposed, the shape of the shade provided with the light source, and the like can also be applied to various shapes. The LED elements are not necessarily arranged in a straight line on the LED substrate, and can be arranged arbitrarily. Further, the light source that is fixedly supported for use in the lighting device need not be limited to the LED element, and may be used in combination with another light source such as a fluorescent lamp.

  Specifically, the lighting device according to the first embodiment can be applied to a reading light, a hand light, a shelf light, a wash light, and the like. Moreover, the desk lamp provided with the illuminating device which concerns on this Embodiment 1 etc. may be sufficient.

  About the specification of the light source part, the stand shape, etc. of the table lamp concerning this Embodiment 2, it can set arbitrarily not only in the example mentioned above. For example, it is not limited to a table stand that is a table-top table lamp, and may be a floor stand used for room lighting or the like.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

  (Additional remark 1) The LED board which hold | maintains a shade and the lever which hold | maintains at least two LED element, and which can be operated with a human hand, and is supported so that movement on the surface facing the irradiated object of the said shade is possible The lever fixed to the LED board is penetrated to form a hole for slidably guiding the lever. The hole is fitted to the shade so as to cover the LED board, and the LED board is moved in a predetermined path. And a cover that is movably held.

  (Additional remark 2) The said LED element is arrange | positioned on the said LED board | substrate on a straight line, The illuminating device of Additional remark 1 characterized by the above-mentioned.

  (Additional remark 3) The lighting apparatus of Additional remark 1 or 2 provided with two or more said LED substrates.

  (Supplementary note 4) The lighting device according to any one of supplementary notes 1 to 3, wherein the LED substrate is supported at one end and rotates around the one end.

  (Supplementary note 5) The lighting device according to any one of supplementary notes 1 to 4, further comprising a fixing LED substrate that holds the LED element and is fixedly supported in the same plane as the LED substrate.

  (Supplementary note 6) The illumination device according to any one of supplementary notes 1 to 5, wherein a reflection member that reflects light is provided on a surface of the shade facing the object to be irradiated.

  (Supplementary note 7) The illumination device according to any one of supplementary notes 1 to 6, a lighting circuit that lights the LED element, a main body that houses the lighting circuit, and the lighting device that is rotatable and at a predetermined position. An arm unit that supports the lighting device and the main body unit, and a base for maintaining the lighting device, the arm unit, and the main body unit so as not to fall down. Desk lamp.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Desk lamp 10 Sed 11 LED element 12 LED board 13 Lever 14 Support shaft 15 Cover 16 Hole 17 Lighting circuit 18 Main part 19 Fixed LED board 20 Light source part 21 Arm part 22 Base 23 Arm support part 24 Light source support part D Irradiation direction S, W Illumination range

Claims (6)

A substrate holding a light emitting element and having a lever;
A hole for slidably guiding the lever, and a cover for holding the substrate movably;
Equipped with a,
The substrate is supported at one end by the cover and rotates around the one end.
A lighting device characterized by that. A substrate holding a light emitting element and having a lever;
A hole for slidably guiding the lever, and a cover for holding the substrate movably;
With Sede ,
With
The cover is attached to the shade;
Lighting apparatus you, characterized in that. The substrate has a plurality of levers;
In the cover, a plurality of holes are formed according to the lever,
The cover holds the substrate movably along the extending direction of the plurality of holes.
The lighting device according to claim 1 or 2, characterized in that. A plurality of the substrates;
The lighting device according to any one of claims 1 to 3, wherein A lighting device comprising: a substrate that holds the light emitting element and has a lever; and a cover that is formed with a hole that slidably guides the lever and holds the substrate movably .
A lighting circuit for lighting the light emitting element;
A main body housing the lighting circuit;
An arm unit that rotatably supports the lighting device and connects the lighting device and the main body;
A base that is attached to the main body and supports the lighting device, the arm, and the main body;
A desk lamp comprising:   The substrate has a plurality of levers;
  In the cover, a plurality of holes are formed according to the lever,
  The cover holds the substrate movably along the extending direction of the plurality of holes.
  The desk lamp according to claim 5.

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