JP2009141924A - Illuminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple, lightweight and small-footprint sound source device which can be installed in any place like a speaker BOX, by providing speaker functions in a shade 4 and a globe 21 of an illuminator such as table stand, floor stand, Japanese-style stand, paper-covered lamp stand, etc., enabling sound signals of media of music, video, and the like to be effectively utilized as BGM easily, and forming a sound field wherein sound pressure is approximately uniform at 360° around the shade 4 and the globe 21. <P>SOLUTION: An illuminator includes a light source and a shade 4 or a globe 21. The light source includes an LED 13 at an arbitrary position of a cylinder 12. A magnetostrictive actuator 10 is provided for generating displacement according to sound signals of an audio band frequency. Vibration generated by the magnetostrictive element is transferred to the shade 4 or the globe 21. Either the shade 4 or the globe 21 is vibrated to generate sounds. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention has a function as a desk lamp of a lighting device, and converts a voice signal of a voice band frequency into a voice vibration by an actuator to function as a speaker that vibrates a shade or a glove of the desk lamp. About.

  The magnetostrictive element, which is the vibration element, converts a sound signal into a magnetic field, generates a displacement according to the application of the magnetic field, and vibrates the outside. Are known.

Magnetostrictive materials developed in recent years have produced large displacements of 1500 to 2000 ppm in the direction of the magnetic field in a magnetic field, and magnetostrictive actuators having a large generated stress of 400 kgf / mm ² or more have been developed. In addition, because it has advantages such as fast response speed and low voltage drive, it can drive actuators and speakers that convert the amount of electricity of this magnetostrictive material into dimensional change, or convert dimensional change into vibration. In recent years, many attempts have been made to use it as a source.

As for a magnetostrictive actuator using a magnetostrictive material, those described in the following documents are well known.
JP 2006-165383 A JP 2006-203590 A JP2007-294517 JP 2005-253129 A

  An electrostrictive element is generally known as a phenomenon in which a sound voltage is applied to the electrostrictive element to vibrate the outside, and a so-called substance is distorted or deformed when a voltage is applied.

  In addition, since the electrostrictive material has a high mechanical resonance point, it is often used as an ultrasonic wave generating element, an ultra-precision positioning element, a lighter ignition element, etc., or as various types of actuators in the mechanical field.

As for electrostrictive actuators using electrostrictive materials, those described in the following documents are well known, but no literature on speakers was found.
JP-A-11-136965 JP-A-11-146664 JP2003-069106

Moreover, what is described in the following literature using a magnetostrictive material is well-known about the speaker using these vibration elements.
Japanese Patent Application Laid-Open No. 2007-158752 JP-A-10-145892

BGM (background music) is often heard in hotel rooms and corridors, in living rooms and bedrooms, and in offices in recent years.
However, in order to generate such sound, the speaker device must be installed on the floor or installed on the wall or ceiling. In particular, it was difficult to secure a place that considered the directivity of the speakers, and it was often necessary to install a place where the acoustic characteristics were insufficient.
In the present invention, sound is generated from the shade or glove of a lighting device that is always inside the building, so that no special space or construction is required for installation, and sound that can easily be heard, such as BGM and announcements. An object is to realize a generating illumination device.

Some lighting devices are always used in hotel rooms and corridors, in living rooms, bedrooms, and offices.
Shades and gloves of these lighting devices have a certain surface area, and can be used as a speaker if they are vibrated at a frequency in the voice band.
As the configuration of the sound generation lighting apparatus according to the present invention, means such as those described in the following (1) to (7) are conceivable.

(1) In a lighting device having a light source and a shade or a globe, the actuator has an actuator that generates vibrations in a voice band frequency, and the vibration is transmitted to the shade or the globe from a vibrator that extracts vibrations outside the actuator. And a sound generating illumination device having a speaker function of vibrating the shade or the globe.

(2) The sound generating illumination device characterized in that the light source is an LED or an EL, and there is no temperature rise during use, unlike an incandescent bulb or a fluorescent lamp, and the burden of heat on the actuator and the accompanying circuit can be reduced.

(3) The sound generation lighting device includes a vibration transmission unit, and the vibration transmission unit is in contact with or joined to either the vibrator and the shade or the globe, and a voice band generated from the vibrator. A sound-generating illumination device that emits sound by efficiently transmitting vibrations having a frequency to either the shade or the globe to vibrate.

(4) The sound generation illumination apparatus according to any one of the above, wherein the sound generation illumination apparatus includes a power supply portion of any one of a light bulb cap type, a power plug type, a ceiling mounting type, and a duct rail connection type.

(5) The sound generating illumination device, wherein the vibration element of the actuator is a magnetostrictive element or an electrostrictive element.

(6) The sound generating illumination device characterized in that the length of the vibration transmitting portion can be adjusted according to the size or shape of the shade or the globe.

(7) The vibration transmitting portion is plate-shaped or wire-shaped, and by bending or contacting or joining either the shade or the globe or the actuator, the vibration of the actuator is efficiently applied to the shade or the globe. A sound generating illumination device characterized by transmitting sound well and transmitting sound.

  By implementing the present invention, sound can be generated from the shade and glove of a lighting device that is always inside the building, and no special space or construction is required for installation. It is possible to realize a sound generation lighting device that can sound.

  By implementing the invention according to claim 1, for example, in a table lamp or table stand provided in a home or hotel room, a sound generation lighting device having two mechanisms of a lighting device and a speaker is realized. It becomes possible to do.

  By implementing the invention according to claim 2, it is possible to suppress the temperature rise compared to a light source such as an incandescent bulb and a fluorescent lamp by using the LED or the EL with a light source having a small temperature rise, and the actuator or There is an effect of reducing the burden of the incidental circuit due to heat.

  By implementing the invention according to claim 3, a vibration transmission unit is provided in the sound generation lighting device, and the vibration transmission unit is in contact with or joined to the vibrator and the shade or the globe. Even if the shade or the globe has an arbitrary shape, the sound vibration of the sound band frequency generated from the vibration element of the actuator is efficiently transmitted to the shade or the globe via the vibration transmitting unit to emit sound. effective.

  By carrying out the invention according to claim 4, the light source has a power supply part of any one of a light bulb cap type, a power plug type, a ceiling mounting type, or a connection type for duct rails. Even if it is not, it can be attached instead of a conventional electric lamp or attached to the ceiling or wall.

  By carrying out the invention according to claim 5, as an actuator for converting the sound signal of the sound band frequency into vibration, the sound signal is converted into a magnetic field and a displacement corresponding to the strength of the magnetic field is generated to vibrate the outside. By using a magnetostrictive element or using an electrostrictive element that vibrates the outside by converting a sound signal into a voltage and applying it, an efficient and small device can be realized.

  By carrying out the invention according to claim 6, the length of the vibration transmitting portion can be adjusted in accordance with the size or shape of the shade or the glove, and can correspond to a shade or glove having an arbitrary shape. It became so.

  By carrying out the invention according to claim 7, the vibration transmitting portion is formed into a plate shape or a wire shape and is bent, and the repulsive force of the bending is used to contact or join the shade, the globe, or the vibrator. As a result, the speaker function that efficiently transmits sound to the shade or the glove through the vibration transmission unit that deflects the vibration of the actuator is realized with a simple structure, fewer parts, and easy assembly. It becomes possible.

  A preferred embodiment of the lighting device according to the present invention will be described below with reference to FIGS.

In the embodiment, an example will be described in which a magnetostrictive element that has been studied extensively recently and is suitable for this device as a sound source device is used as an actuator.
However, the description of the structure of the magnetostrictive actuator is omitted as a known technique.

(First embodiment)
FIG. 1 is a partial cross-sectional explanatory diagram in which the shade 4 or the globe 21 of the desk lamp 1 is made to function as a speaker using the magnetostrictive actuator 10 in the desk lamp 1 of the lighting device according to the present invention.
The light source of the desk lamp 1 is provided with an LED 13 at an appropriate arbitrary position of the tube 12 as necessary, receives an audio signal of media such as music and video inside the tube 12, and converts the audio signal into a magnetic field. A magnetostrictive actuator 10 that generates a displacement corresponding to the strength of the magnetic field is provided, an auxiliary circuit for driving the magnetostrictive actuator 10 is provided if necessary, and a power source that supplies the light source and the auxiliary circuit is provided. In order to supply and fix the tube 12, a light bulb base power supply unit 7 is provided to form a compact LED lighting device A, which can be attached to and detached from the existing table lamp 1 for the incandescent bulb 22. Therefore, processing or construction for attaching the light source can be eliminated.

  In FIG. 1, the vibration transmission unit for transmitting the sound vibration converted by the magnetostrictive actuator 10 is a plate-shaped bent metal wire 14, and transmits the vibration to the shade 4 and the vibrator 11. The vibration generated by the magnetostrictive element is transmitted through the vibration transmitting unit and is efficiently transmitted to the shade 4 by vibrating the shade 4 by contacting with a restoring force caused by bending the portion. Make a sound.

Other examples

  In addition, when the shade 4 or the globe 21 is made of a material having weak tension such as cloth or paper, an arm 5 for maintaining the shape of the shade 4 or the globe 21 is provided. When the arm 5 is provided, the vibration transmitting portion is provided in contact with or joined to the arm 5 and the vibrator 11 so that the arm 5 can be efficiently applied to either the shade 4 or the globe 21. The sound vibration is transmitted, and there is a similar effect in that sound is produced when either the shade 4 or the globe 21 or the arm 5 vibrates.

  The vibration transmitting portion is a plate-shaped or wire-shaped metal wire, and may be a bent metal wire, a straight metal wire, a cross-shaped metal wire, or another shape metal wire, or another material Even a plate-like or wire-like wire has the same effect.

EL is an abbreviation for electroluminescence. A special light-emitting material is sandwiched between thin insulating films. When an AC voltage is applied to both sides of this insulating film, this special semiconductor material emits light over the entire surface, so it has a wide range. It is very thin and compact, and the temperature rise due to light emission is almost none.
Luminescent materials include inorganic EL elements that use inorganic compounds and organic EL elements that use organic compounds. Compared to conventional displays, the light-emitting materials are bright and clear, have a wide viewing angle, and are thin and have excellent characteristics. It is attracting attention as a new generation display.

  The shade 4 or the globe 21 may be made of a material such as a table stand, a floor stand, a Japanese style stand, an andon or a paper lantern, and may also have a voice band frequency in the same manner even with wooden, cloth, paper, earthenware, glass, resin, or other materials. There is an effect of generating sound by vibration.

  The shade 4 or the glove 21 is made by impregnating or applying a resin, glue, paint, lacquer or other materials to the cloth, paper, etc., which are soft and difficult to be used as a sound source, to increase the hardness. There is an effect of emitting sound by vibration of the sound band frequency.

  The shape of the shade 4 or the globe 21 is a rectangular parallelepiped, a cube, a quadrangular pyramid, a triangular prism, a triangular pyramid, a triangular frustum, a cylinder, a truncated cone, a sphere, a hemisphere, a regular pentagon, a regular hexagon, or a lantern. The shade 4 or the globe 21 having a certain other shape has the same effect.

  In addition, a pull switch is provided in the tube 12 of the LED lighting device A, in the drive circuit, or in an appropriate arbitrary position, and by pulling the audio signal input cord 16, the pull switch power ON / OFF function is combined. Therefore, the pull switch string can be omitted, and the appearance is refreshed.

  FIG. 2 is a partial cross-sectional explanatory view of the light source of FIG. 1. The light source is provided with an LED 13 at an appropriate arbitrary position of the tube 12 as necessary, and the sound of media such as music, video, etc. inside the tube 12 An auxiliary circuit for receiving a signal, converting the audio signal into a magnetic field, generating a displacement corresponding to the strength of the magnetic field, and driving the magnetostrictive element of the magnetostrictive actuator 10 as necessary. The LED lighting device A is characterized in that the light source is provided with a light bulb cap power supply unit 7 and is formed in a very compact manner.

FIG. 3 is a perspective explanatory view according to the present invention of FIG. 1 and is a plate-like bent metal wire which is a vibration transmitting portion for efficiently transmitting sound vibration converted by the magnetostrictive element of the magnetostrictive actuator 10. 14 is provided in contact with or bonded to either the shade 4 or the globe 21 or the vibrator 11, so that the sound vibration is efficiently transmitted to either the shade 4 or the globe 21, and the shade 4 or There is an effect that a sound is generated when any of the globes 21 vibrates.
(Second embodiment)

  FIG. 4 is a perspective explanatory view of the vibration transmission unit, and a plate-like bent metal wire 14 which is a vibration transmission unit for efficiently transmitting the sound vibration converted by the magnetostrictive actuator 10 and the vibrator 11. Is provided in contact with or bonded to the plate-shaped bent metal wire 14 and the vibrator 11 so as to cover and cover the cap 18.

  Further, by changing the material, shape or size of the cap 19, the sound vibration converted by the magnetostrictive actuator 10 can change the sound quality and volume of sound produced by the shade 4 or the globe 21. It is the illuminating device characterized by the above.

  Further, by changing the material, shape or size of the cap 19, the sound vibration converted by the magnetostrictive actuator 10 causes the cap 19 to emit sound in the same manner as the shade 4 or the globe 21. It is a lighting device.

  FIG. 5 is an explanatory perspective view of FIG. 4, and an adjuster 17 is provided for adjusting the length of the vibration transmitting portion in accordance with the size or shape of the shade 4 or the globe 21, and the adjuster 17 is provided with the adjuster 17. An illuminating device having a lock function for fixing an adjuster fixing screw 18 or an adjuster 17 for fixing the vibration transmitting portion, and adapted to the shade 4 or the globe 21 having different sizes. is there.

  FIG. 6 shows a wire-like straight metal wire 20 that is the vibration transmitting portion provided in contact with or bonded to either the shade 4 or the globe 21 or the vibrator 11, so that the shade 4 or the globe 21 It is effectively transmitted to either of them, and there is an effect of producing a sound when either the shade 4 or the globe 21 vibrates.

FIG. 7 is a block diagram of the lighting device of the present invention.
(Audio signal input)
Audio signal input from music, video, broadcast, and other media.
(Drive circuit)
An audio signal amplification circuit for outputting an audio signal necessary for sufficiently driving the magnetostrictive actuator 10.
(Power circuit)
A power supply circuit such as an audio amplifier circuit.
(Actuator)
The input audio signal is converted into a driving force by the magnetostrictive actuator 10, and the audio signal is generated as vibration.
(Vibration transmission part)
The role of transmitting the vibration converted from the audio signal as vibration in the magnetostrictive actuator 10 to either the shade 4, the globe 21, or the arm 5.
(Shade Grove)
It plays the role of a speaker that emits sound vibration transmitted from the vibration transmitting section as sound.

(Third embodiment)
8 directly contacts either the shade 4 or the globe 21 or the arm 5 or the vibrator 11 without providing the wire-like straight metal wire 20 that is the vibration transmitting portion provided in FIG. Alternatively, by providing them by joining, there is an effect of efficiently producing a sound by vibrating either the shade 4 or the globe 21.

(Fourth embodiment)
FIG. 9 shows that the entire LED lighting device A is housed in the globe 21 and a wire-like straight metal wire 20 as the vibration transmitting portion is provided in contact with or joined to the globe 21 or the vibrator 11. The illumination device is characterized in that the vibration generated in the magnetostrictive actuator 10 is transmitted to the globe 21 covering the entire LED illumination device A, and the globe 21 vibrates to emit sound.

  The globe 21 has an effect of generating sound similarly in a dome molded body such as an acrylic resin or other resin, or in a molded body made of other materials such as glass.

  The wire-like straight metal wire 20 as the vibration transmitting portion has the same effect even if it is a bent metal wire, a dog-shaped metal wire, or another shape of wire.

(Fifth embodiment)
FIG. 10 shows the lamp socket 3 of the desk lamp 1 or, if necessary, the magnetostrictive actuator 10 provided at an appropriate arbitrary position of the desk lamp 1, and the pedestal 6 of the desk lamp 1 or an arbitrary position as required. An auxiliary circuit for driving the magnetostrictive element of the magnetostrictive actuator 10 is provided, and a wire-like metal wire 23 that is a vibration transmitting portion for efficiently transmitting the sound vibration converted by the magnetostrictive actuator 10 is provided. By providing either the shade 4 or the globe 21 or contacting the vibrator 11, the vibration converted as the sound vibration in the magnetostrictive actuator 10 is transmitted to either the shade 4 or the globe 21. When either the shade 4 or the globe 21 vibrates There is a rate often emits a sound effect.

(Sixth embodiment)
FIG. 11 is an example of an embodiment of the power supply unit shown in claim 4, which is an embodiment of a duct rail power supply unit provided on the ceiling of a home, office, store or the like. In FIG. By attaching a sound generating lighting device in which the entire lighting device A is housed in the globe 21 to the duct rail socket 25, vibration converted as sound vibration in the magnetostrictive actuator 10 is transmitted to the globe 21 to generate sound. The sound generated from the lighting device forms a sound field with almost uniform sound pressure around 360 degrees in the home, office, and store, so that the sound can be heard from the entire home, office, and store. The effect can be obtained.

(Seventh embodiment)
FIG. 12 is an example of an embodiment of the power supply unit shown in claim 4. In the LED lighting device A shown in FIG. 2, a power plug type power supply unit 26 is provided instead of the light bulb cap power supply unit 7. By plugging into a power outlet provided on the wall, floor, ceiling, etc. of homes, offices, stores, etc., the sound generated from the sound generation lighting device is almost equal to 360 degrees around the home, office, store. In order to form a uniform sound field, it is possible to obtain an effect that sounds can be heard from within the home, office, and store.

(Eighth embodiment)
In claim 4, in another example of the embodiment of the power supply unit, when another coil attached to the electronic device is brought close to a coil through which a current flows, such as a wall surface, a floor surface, a ceiling surface, an upper surface of a table, etc. By providing a power transmission sheet utilizing a phenomenon called electromagnetic induction that can send power even if it is not in contact, a power receiving side coil is provided on the lower surface of the base 6 of the desk lamp 1 in the embodiment of FIG. In the case of supplying, the same power supply effect can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS Partial cross-section explanatory drawing which shows 1st embodiment of the illuminating device by this invention. The partial cross section explanatory drawing which shows the structure of the light source of the illuminating device by this invention. The partial perspective explanatory view which shows the vibration transmission part of an illuminating device and the adjuster structure of an expansion-contraction function by this invention. FIG. 6 is a partial cross-sectional explanatory view in which a cap is covered and provided on a portion where a plate-like bent metal wire and a vibrator are contacted or joined according to the present invention. FIG. 3 and FIG. 4 explanatory perspective view of a lighting device according to the present invention. The partial cross section explanatory drawing which shows 2nd embodiment of the illuminating device by this invention. The block diagram of the illuminating device by this invention. The partial cross section explanatory drawing which shows 3rd embodiment of the illuminating device by this invention. Partial cross-section explanatory drawing which shows 4th embodiment of the illuminating device by this invention. Partial cross-section explanatory drawing which shows 5th embodiment of the illuminating device by this invention. Partial cross-section explanatory drawing which shows 6th embodiment of the illuminating device by this invention. Partial cross-section explanatory drawing which shows 7th embodiment of the illuminating device by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Desk lamp 2 Power cord 3 Lamp socket 4 Shade 5 Arm 6 Base 7 Light bulb cap power supply part 8 Power supply circuit 9 Drive circuit 10 Magnetostrictive actuator 11 Vibrator 12 Tube 13 LED
14 Plate-shaped bent metal wire 15 Audio signal input terminal 16 Audio signal input cord 17 Adjuster 18 Adjuster fixing screw 19 Cap 20 Wire-like straight metal wire 21 Globe 22 Incandescent light bulb 23 Wire-like metal wire 24 Duct Rail 25 Duct rail socket 26 Power plug type power supply unit A LED lighting device

Claims (7)

In an illumination device having a light source and a shade or a globe, the actuator has an actuator that generates vibration at a voice band frequency, and the vibration is transmitted to the shade or the globe from a vibrator that extracts the vibration to the outside of the actuator. A sound generation lighting device characterized by emitting a sound. The sound generation lighting device according to claim 1, wherein the light source is an LED or an EL. The sound generation lighting device includes a vibration transmission unit, and the vibration transmission unit is in contact with or joined to the vibrator and the shade or the glove, and generates vibration of a voice band frequency generated from the vibrator. The sound generation lighting device according to claim 1, wherein the sound generation illumination device emits sound by being transmitted to either the shade or the globe and vibrating. 4. The sound generation lighting device according to claim 1, further comprising a power supply part of any one of a bulb cap die, a power plug type, a ceiling mounting type, or a duct rail connection type. Sound generation lighting device. The sound generating illumination device according to any one of claims 1 to 4, wherein the vibration element of the actuator is a magnetostrictive element or an electrostrictive element. 6. The sound generating illumination device according to claim 3, wherein a length of the vibration transmitting unit is adjustable. The sound according to any one of claims 3 to 6, wherein the vibration transmitting portion has a plate shape or a wire shape, and is brought into contact with or joined to either the shade or the globe or an actuator by being bent. Generation lighting device.

Images