JP2002314151A - Light projecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To harden a photopolymerization material by condensing the lights projected from light projecting means without using such a light focusing means as an optical system. SOLUTION: The light projecting apparatus comprises a portable type hand piece and a base portion for mounting thereon when the portable type hand piece is unused. The hand piece has a plurality of light projecting means having respective directivities, and has a holding means for holding the plurality of light projecting means at respective predetermined angles with each other that their outputting lights are condensed. The holding means comprises a main-body portion and a plurality of holes formed in the main-body portion. The main-body portion may be plate-form or be a curved one allowably. When a fluid having an excellent heat conductivity is stored in the space surrounded by a board, the holding means, and members, the radiation efficiency of the light source of the light projecting apparatus can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light irradiation device for curing a photopolymerizable material.

[0002]

2. Description of the Related Art In dental treatment, for example, a cavity formed by an occlusal treatment or the like is filled with a photopolymerizable material and irradiated with light to polymerize and cure the cavity, thereby filling the cavity, 2. Description of the Related Art It has been practiced to apply a photopolymerizable material, irradiate light to polymerize and cure, and then perform cutting, polishing, and the like to repair damaged portions while maintaining aesthetics.

[0003] As a light source for curing a photopolymerizable material, a light irradiation device provided with a plurality of light emitting diodes (LEDs) is conventionally known. As an example of such an apparatus, Japanese Patent No. 2979722 discloses a configuration in which light from each of a plurality of LEDs is condensed by an individual optical fiber and irradiated from an irradiation head. There has been disclosed a light source device for curing a photo-curable resin having a configuration in which light is condensed by a concave mirror and irradiated from an irradiation head. The device operates from 430 nm to 480 nm from the irradiation head.
Since light with a peak emission wavelength of nm is irradiated, it is suitable for curing a photopolymerized resin that is cured by light in that wavelength range.

[0004]

In the above prior art,
In order to collect a plurality of lights output from a plurality of light emitting diodes onto a photopolymerizable material, a plurality of optical fibers, a condenser lens, a concave mirror, and the like were required. Also, the light output from the LED itself is cold light, but the LED and the substrate that fixes it have heat due to the LED drive current, so that the operation of the LED becomes unstable or durable due to the heat. Performance may be reduced.

[0005] Although not disclosed in the above-mentioned patents, some conventional photo-curing resin curing devices include:
Some have a light guide for guiding the light of the light emitting diode to a predetermined location. However, since the light guide is fixed and cannot be changed or exchanged, it is necessary to change or tilt the irradiation device itself depending on the position of the tooth to be irradiated. For this reason, the dentist having the light irradiation device may have to take an unnatural posture.

Since a power cord is connected to a conventional portable light irradiation device, the power cord is obstructed when the light irradiation device is arranged at an appropriate position for irradiation when irradiating light. And the range of carrying the device was limited by the length of the cord.

[0007] In the main body of a conventional portable light irradiation device, a number of switches, volumes, display windows, and the like are provided for setting, checking, and operating irradiation time and irradiation intensity. Some devices have a single switch having a plurality of functions. In such a case, the setting or the like must be performed by a combination of switches, and the operation may be complicated and erroneous. In addition, the switch, the volume, the display window, and the like may be provided on the grip portion. In such a device, when setting, the light irradiation device is held by one hand while being held by the other hand. A switch or the like must be operated, which is troublesome, and the switch may be erroneously operated by a hand or a finger having a grip portion during light irradiation.

Further, the light output from the light irradiation device must have a wavelength range that depends on a wavelength band effective for curing the photopolymerizable substance cured by the light. It will be specified according to the substance. Therefore, if light having a wavelength band different from the wavelength band of the light output from the light irradiating device can be used as the light output from the light source of the light irradiating device, various types of light for the light irradiating device are required. Various light sources can be used, which is convenient in manufacturing the light irradiation device.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to provide a light irradiating apparatus which solves the above-mentioned various problems in the prior art and achieves the conventional demand. The apparatus includes a plurality of directional light irradiating units, and a light irradiating unit arranged so that light output from the plurality of light irradiating units is collected. LED as light irradiation means
Alternatively, a laser element can be used. Further, a combination of an LED and a laser element may be used as the light irradiation means. Further, a power supply unit for supplying electric power to the light irradiation unit can be provided.

Further, according to the present invention, a plurality of directional light irradiating means and a plurality of light irradiating means are held at a predetermined angle so that light output from the plurality of light irradiating means is collected. A light irradiation device comprising a holding unit is provided. further,
A light guide that guides the light output from the light irradiation unit and collected to a predetermined position may be provided. The holding means comprises a main body and a plurality of holes formed therein. Each LED is inserted into each of the plurality of holes of the holding means, and each LED is inserted.
Is held at a predetermined angle, and the light output from each LED is collected. The main body of the holding means can consist of a flat plate. A curved surface may be formed on the main body of the holding means.

Further, according to the present invention, a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, a plurality of light irradiating means which are held at a predetermined angle and output from the plurality of light irradiating means are provided. And a holding unit configured to collect light to be collected.

Further, according to the present invention, a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, a plurality of light irradiating means are held at a predetermined angle and output from the plurality of light irradiating means. Holding means for allowing the light to be focused
A light irradiation device includes a holding unit and a member disposed around the substrate.

Further, the present invention provides a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, a plurality of light irradiating means which are held at a predetermined angle and output from the plurality of light irradiating means. Holding means for allowing the light to be focused
Provided is a light irradiation device including a holding unit and a member arranged around a substrate. A ring-shaped heat dissipating member can be used as the member. A space surrounded by the substrate, the holding means, and the member can contain a fluid having excellent heat conductivity. Further, a light guide means for guiding the collected light output from the light irradiation means to a predetermined position can be provided, and this light guide means can be easily attached to and detached from the light irradiation device, and can be freely rotated. it can. Further, a controller for controlling the irradiation time and irradiation intensity of the light irradiation means can be provided.

Further, the present invention provides a light irradiation device comprising a portable handpiece and a base portion which is placed when the handpiece is not used. The handpiece has a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, and light output from the plurality of light irradiating means while holding the plurality of light irradiating means at a predetermined angle. Holding means for converging light, a light guide for guiding condensed light output from the light irradiating means to a predetermined position, a controller for controlling irradiation time and irradiation intensity of the light irradiating means, a controller and the controller A battery for supplying power to the light irradiation means. The base unit can program a holding unit that holds the handpiece, a power supply unit for supplying power to the battery of the handpiece, and an irradiation time and an irradiation intensity of the light irradiation unit. Control unit means for sending to the controller. The control unit means includes a switch for programming the irradiation time and irradiation intensity of the light irradiation means, and further, the controller of the handpiece includes a memory, and the program set by the control unit means stores the program in the memory of the controller of the handpiece. Uploaded. Further, the control unit means of the base unit has a display panel, and the display panel can display the contents of the program of the irradiation time and the irradiation intensity of the light irradiation means. A light irradiation device, wherein the control unit means of the base unit can display the state of the handpiece on the display panel when the light irradiation by the handpiece is completed and the handpiece is returned to the base unit.

[0015]

FIG. 1 is a partially sectional front view of a handpiece 1 of a light irradiation device according to the present invention. The outside of the handpiece 1 is covered by a case 10 formed of a translucent plastic material. An intelligent card 11 for controlling light irradiation time and light intensity is provided in the handpiece 1.
The card comprises a unit main upper part 11a and a unit main lower part 11b.

The handpiece 1 includes an LED module 12, a heat radiating ring 13, a chuck 14, a light guide 15, an irradiation switch 16 for activating the LED module 12 to emit light, a battery 17,
A unit contact 18 for supplying power from the outside to the battery by contacting a base contact of the base unit to be described later and transmitting light irradiation control data set by the control unit of the base unit to the memory of the intelligent card 11; A power circuit 19 which is a control circuit for transmitting a power supply and a program from the unit contact 18 is provided.

The LED module 12 includes, for example, 19 LEDs 12a (light irradiation means). Those LE
D is 34 according to the wavelength range suitable for curing the photopolymerizable material.
A device that outputs light in a wavelength band from 0 nm to 480 nm is used. However, when curing a photopolymerizable material that cures in other wavelength ranges, an LED that outputs light in the corresponding wavelength range is used. In addition, LED
Instead of the module, a laser module including 19 laser elements 12a having the same shape as the LED may be used. The light source module may be configured by combining an LED and a laser element.

The leads of each LED 12a are connected by solder to a printed circuit on the substrate 12b. Further, as shown in FIG. 1 and FIG.
Each LED is tilted at an appropriate angle so that the light output from each LED is focused on the light input end of the light guide 15. For example, in the embodiment shown in FIG.
tilt angle α1 of the head portion of the LED 12 _a1 for b perpendicular of 25 degrees, the inclination angle α2 of the head portion of the LED 12 _2a is 12 degrees, whereby the light output from the head portion of each LED, 25 mm away The light is focused on the light input end of the write head. The center LED is not tilted. In this case, the LED module 12 has 25
It can be expressed as having a focal length of mm.

FIG. 9 is a simplified diagram for explaining the tilted state of the LED head of FIG. 1. The LED head of each LED of the LED module 12 is simply bent from the base of the lead and tilted. Is shown. In the embodiment of FIG. 1, as shown in the enlarged view of FIG. 10, in order to maintain the inclination angle of the head portion of each LED, the LED head holder 12 is used.
c is used. The LED head holder 12c uses, for example, an aluminum plate as a main body, and a hole 12d through which the head of each LED penetrates is formed in the plate. Each of the holes tilts the head of each LED at an appropriate angle when the head of each LED is inserted, so that the light output from the LED is focused on the light input end of the light guide 15. So as to penetrate at an appropriate angle to the surface of the plate material.

The holder 12c may have a plate shape as shown in FIG. 10, but a holder 12c 'having a curved surface may be used as shown in FIGS. 11a to 11d. In this case, to hold the LED head,
As shown in FIG. 11a, the center axes of the holes 12d 'are inclined so as to be concentrated at one point. The head portion of the LED has a hole 12 so as to protrude toward the concave surface
inserted into d '.

The shape of the holder is not limited to these embodiments, but may be such that the convex side of the holder projects toward the side where each LED is condensed. However, in this case, the holes formed in the holder are as shown in FIG.
It is formed so as to have a slope opposite to that of the embodiment from a to FIG. 11d. In addition, the holes for holding the LEDs are designed not to hold one LED for each hole as in the embodiment of FIGS. 10 and 11a to 11d, but to hold a plurality of LEDs in one hole. You may. When the holder has a curved bowl surface, the distance from each LED attached thereto to the light condensing position can be minimized, and in the case of a plate shape, there is no space on the concave side, This has the advantage that the size of the LED module can be small.

Referring again to FIG. 1, the heat dissipating ring 13 has a cylindrical shape as shown in FIGS.
It is arranged around D, which is made of an aluminum alloy with high heat conduction effect to enhance the heat dissipation effect.
The heat radiating ring 13 may be screwed to the substrate using two screw holes 13a, for example, as shown in FIG. 7B.

The following configuration may be used to enhance the heat radiation efficiency of the LED module 12. That is,
The LEDs are connected to the substrate 12b, and the head of each LED is inserted into the hole 12d of the holder 12c and fixed. Further, the heat radiating ring 13 is brought into close contact with the substrate 12b and the holding portion 12c, and a fluid having excellent thermal conductivity, for example, silicone is injected into a space surrounded by the substrate 12b, the holder 12c and the heat radiating ring 13.

The operation of the LED or laser element 12a is stabilized by these heat radiation effects, and the durability thereof can be improved. Further, since the heat radiating ring is made of a high-strength aluminum alloy, the strength around the module 12 can be increased to protect the module.

The intelligent card 11 has a microcontroller (U1) for controlling the light irradiation time and light irradiation intensity, as shown in the circuits shown in FIGS. 5A and 5B.
Six green LEDs (D1 ~
D6), a red LED (D19) that lights when the battery voltage falls below a predetermined voltage, and a buzzer (SPK1) that notifies that a predetermined irradiation time has elapsed. Since the case 10 is made of translucent plastic, six green LEDs (D1 to D6) and six red LEDs (D
The light of 19) can pass through the case, so that their lighting can be confirmed from the outside.

The module 12 of the light source is shown in FIGS.
In the circuit diagram shown in FIG. 2B, 19 LEDs 12a (D7-D1
8, D25-D31), whose LEDs are connected to the microcontroller of the intelligent card 11 via regulators (U3, U4, U5).
The regulator is for eliminating the unevenness of the light emission intensity of the LEDs and stabilizing the light emission intensity. As the module 12, a laser element or other equivalent light emitting element can be used instead of the LED.

340n as LED, laser element, etc.
A device that outputs light in a wavelength range from m to 480 nm is used. The wavelength band of output light of a conventionally used blue LED is 440 nm to 495 nm. When an LED, laser, or the like having a peak emission wavelength between 340 nm and 430 nm is used, it is possible to cure a photopolymerized resin that cures effectively in a wavelength range different from the emission wavelength range of the blue LED.

The chuck 14 connects the light guide 15 to the tip of the handpiece 1 and is formed by cutting an aluminum alloy. As shown in FIG. And a chuck portion 14b for holding an end portion. The conical portion 14 a is arranged such that the large-diameter opening side is in contact with the end of the heat radiation ring 13 of the module 12.

The chuck portion 14b is provided with a ball bearing with a spring (not shown). In the ball bearing, the light guide 15 has a chuck portion 14b.
When it is inserted into the hole, it engages with a groove (not shown) formed on the outer peripheral surface of the end of the light guide. For this reason, the light guide 15 is inserted into the hole of the chuck portion 14b,
By pulling the light guide, the light guide can be easily attached to or detached from the chuck 14 or from the chuck 14, and different types of light guides can be easily exchanged. Further, since the ball bearing of the chuck portion 14b can move along the groove formed on the outer peripheral surface of the light guide 15 by engaging with the groove, the light guide can be freely rotated around its axis. Can be done.

As another example, without providing a ball bearing in the chuck portion and without forming a groove in the light guide,
By magnetizing both or one of the chuck portion and the portion of the light guide inserted into the chuck portion, they may be joined by magnetic attraction. Accordingly, it is possible to prevent the light guide from coming off due to a decrease in accuracy due to abrasion or interference of the joint portion, and it is not necessary to make an adjustment for preventing the light guide from coming off.

The light guide 15 is a bundle of optical fibers having excellent transparency. As shown in FIG. 1, one end of the light guide 15 is a light input end, which is attached to a chuck. The other open end is the light output end, from which light is emitted. Chuck unit 14
On the outer peripheral surface of the light input end of the light guide 15 which is attached to the side b, a groove is formed in which the bearing of the chuck portion 14b engages. However, as mentioned above,
When a magnetic force is used for joining the light guide and the chuck portion 14b, the groove is unnecessary. On the other hand, the light output end side is bent at an angle of 45 degrees so that light irradiation can be easily performed. However, a light guide bent at another angle such as 60 degrees can be used. If several light guides having different angles are prepared in advance, they can be replaced as needed. The light output end is tapered so that the tip is tapered, and the degree of tapering can change the light integration efficiency. If several types of light guides having different degrees of taper processing are prepared in advance, the necessary light integration efficiency can be easily achieved by replacing the light guides. When the light collected by the chuck 14 is incident on the light input end of the light guide, the optical fiber guides the light to the other open light output end, from which light is emitted. A predetermined location is irradiated.

The battery 17 is charged by electric power supplied from a base unit described later and can be used repeatedly. When the voltage becomes lower than the predetermined voltage, a red LED (D19) is lit to give a warning. If the battery has reached the end of its life, it can be replaced with a new battery.

The unit contact 18 comes in contact with a base contact of a base portion, which will be described later, receives power from the outside, and supplies power to the battery 17 via the power circuit 19. Further, as will be described later, the program is also used for receiving a light irradiation time and light irradiation intensity program set by the control unit of the base unit via the base contact of the base unit and transmitting the program to the intelligent card 11.

The power circuit 19 includes the unit contact 1
8 functions as a control circuit for transmitting the received power and program data.

The irradiation switch 16 is a switch S1 of the circuit shown in FIG. 5A. When the switch is pressed, the LED or the laser element 12a is activated, and light irradiation is executed according to a preset program.

FIG. 2 is a partially sectional side view of the base 2 of the light irradiation device according to the present invention. The base section 2 includes a base top 20, a control panel section 21 in which a control unit 21 is housed, a base contact 23 for contacting a unit contact of the handpiece 1 and supplying power and a program, and an AC adapter 24.
And a power jack 25 for connecting the AC adapter to the base contact 23.

The base top 20 has a concave portion for accommodating the handpiece 1, and the concave portion is formed into a shape that conforms to the shape of the handpiece when it is stored and allows the handpiece to be easily removed from the concave portion.

The base contact has a contact for power supply and a contact for program transmission.

The AC adapter 24 converts 100 V AC to DC 1
Convert to 2V. The converted DC is supplied to the power jack 2
5, the power is supplied to the control unit 21 and the power supply contact of the base contact 23.

As shown in FIG. 4A, the control unit 21 includes switches S1-S5 and display panels 21a and 21a.
1b. The switches S1 to S5 correspond to the switches S1 to S5 in the circuit shown in FIG. The switch S1 is a mode for selecting a mode, and is a mode for continuously irradiating strong light, for example, for 10 seconds, 20 seconds, 30 seconds, 40 seconds, 50 seconds, and 60 seconds. It is used to select one mode from a settable mode and a custom mode in which an irradiation program can be freely set. The switch S4 is a switch for returning the program setting of light irradiation to a default (initial setting). For example, in the initial setting, a program is performed such that a weak light is irradiated for 6 seconds and a strong light is irradiated for the next 15 seconds. If so, return the current setting to that setting. Here, the weak light is, for example,
When only seven of the nine LEDs or the laser elements 12a are turned on, the light is output.
D or output light when the laser element is turned on.
Switches S3 and S2 can be used when the custom mode is selected by switch S1, and are used to set the irradiation time of weak light and strong light, respectively. Whether to set strong light, weak light, or how long the irradiation time should be determined depends on the type of the photopolymerized resin. However, since various factors such as light irradiation angle, irradiation distance, and room temperature affect the curing of the photopolymerized resin, the setting can be changed according to experience. The switch S5 is for transferring (uploading) a program set by operating each switch to the memory of the intelligent card 11 of the handpiece 1.

The display panels 21a and 21b display the irradiation time of the weak light and the irradiation time of the strong light by two-digit numbers, respectively. As shown in FIGS. 6a to 6c, the display panel 21a is a liquid crystal panel. L1 and L2, and the display panel 21b has liquid crystal panels H1 and H2.
Consists of

FIG. 3 shows a state in which the handpiece 1 is accommodated in a concave portion of the base portion 2. In that case, the handpiece is placed so that the unit contact 18 of the handpiece 1 contacts the power supply contact of the base contact 23 of the base 2. In this state, the DC converted by the AC adapter 24 is supplied to the power jack 25, the base contact 23, the unit contact 18, and the power circuit 1
9 to the battery 17.

Further, in this stored state, a desired light irradiation program can be set by using the switches S1 to S5 of the control unit 21. For example, the switch S1 is pressed to select the custom mode. Next, when the switch S3 is pressed to set the irradiation time of the weak light to 8 seconds, "08" is displayed on the display panel 21a. Further, when the switch S2 is pressed to set the irradiation time of the intense light to 30 seconds, "30" is displayed on the display panel 21b. When the switch S5 is pressed in this state, the set program is uploaded from the control unit 21 to the memory of the intelligent card 11 via the data contact of the base contact 23, the unit contact 18 and the power circuit 19, It is stored there. If you make such settings and upload multiple times,
A plurality of different programs can be stored in the memory.

When performing light irradiation after setting the light irradiation time and light irradiation intensity as described above, first, the handpiece is taken out of the base portion 2. In this case, since the power cord is not connected, it is easy to handle and can be freely carried. Here, if necessary, the light guide can be replaced with a light guide having another light integration efficiency or another light guide having a different bending angle at the tip end.
The replacement is performed by pulling out the currently mounted light guide 15 from the chuck 14 and then inserting the end of another desired light guide into the chuck portion 14 a of the chuck 14. Next, the light output end at the tip of the light guide 15 is turned to the position where light irradiation is performed. For example, in the case where the cavity formed by the treatment of an occupation is filled with the light-curing resin, the light output end of the light guide 15 is directed to the light-curing resin of the cavity of the tooth. At that time, the light guide can rotate around its axis,
The tip can be easily pointed at the predetermined location.

Next, the irradiation switch 16 of the handpiece 1
push. At this time, it is not necessary to set the light irradiation time and the like. When the switch is pressed, the intelligent card 11
The microcontroller U1 executes light irradiation according to a program stored in the memory. For example, as described above, when the handpiece 1 is stored in the base unit 2, when the custom mode is selected, the weak light is irradiated for 8 seconds, and then the strong light is set to be irradiated for 30 seconds. Is
Light irradiation is automatically performed according to the procedure. Since the handpiece 1 is not provided with any switches, the switches are not erroneously operated during the irradiation.

When the predetermined light irradiation is completed, the user returns the handpiece 1 to the base 2. At that time, the unit contact 18 of the handpiece 1 is brought into contact with the base contact 23 of the base 1. At this time, the program data stored in the memory of the intelligent card 11 of the handpiece 1 can be downloaded to the control unit 21 and the contents can be confirmed on the display panel. Further, the state of the LED or laser element, the intelligent card 11, and the battery 17 in the handpiece 1 can be confirmed by the bidirectional communication function between the microcontroller U1 of the intelligent card of the handpiece and the control unit 21. As a result, if an abnormal state is found in any of the components, it is displayed on the display panel. Also,
While the handpiece 1 is placed on the base portion 2, the battery 17 of the handpiece 1 is charged, and the next light irradiation can be performed immediately.

Next, a configuration for outputting light having a wavelength different from the wavelength output from the module 12 will be described. In FIG. 1, for example, a fluorescent substance is applied to a surface of an end portion of the light guide 15 on the light input side. When it is irradiated with the collected light output from the module 12, the fluorescent substance becomes
It outputs light having a wavelength corresponding to the substance. The light is
The light is supplied to the light output end via the light guide 15. As a result, the light output from the light output end of the light guide 15 has a wavelength determined by the fluorescent substance. For this reason, for example, when the light source of the LED or the laser element outputs light in the wavelength range of 340 nm to 430 nm and the fluorescent substance generates light in the wavelength range of 430 nm to 530 nm, the light guide 15 The light output from the light output end is 430 nm to 530 nm
Light in the wavelength range of Thereby, regardless of the wavelength range of the light of the light source, it becomes possible to cure the resin or the bonding agent that cures in that wavelength range.

Further, a light transmitting member coated with a fluorescent substance may be arranged, for example, between the module 12 and the light guide 15 in FIG. In this case, the light output from the module 12 passes through the light transmitting member and is collected on the breast end face of the light guide 15. The collected light is output from the light output end of the light guide 15. The output light is light having a wavelength determined by the fluorescent substance.

[0049]

As is apparent from the above description, the light irradiation device according to the present invention does not require a light condensing means for condensing the light output from the LED. And cost can be reduced correspondingly. Further, when the light from the LED is condensed, the light does not pass through a lens or the like, so that a decrease in the amount of light can be prevented.

Further, according to the light irradiation apparatus of the present invention, the handpiece has a controller for controlling the irradiation time and irradiation intensity of the battery and the light source, so that it can be carried. Further, the light irradiation device according to the present invention comprises a handpiece and a base unit, and a control unit capable of setting the irradiation time and irradiation intensity of the light source in the base unit and sending the program to a controller of the handpiece. Therefore, it is possible to prevent a switch such as a setting from being erroneously operated during light irradiation.
In addition, since the handpiece and the base are connected via the contact, the contents of the program stored in the handpiece can be confirmed by the base by the mutual communication function of the two, and each part of the handpiece can be confirmed. You can check the status of.

Further, according to the light irradiation device of the present invention, a fluid having high thermal conductivity can be filled in the space surrounded by the substrate, the holding member and the ring, so that the heat from the light source can be effectively removed. Can be released, thereby ensuring stable operation of the device and improving durability.

[Brief description of the drawings]

FIG. 1 is a partial front sectional view of a handpiece of a light irradiation device according to the present invention.

FIG. 2 is a partially sectional front view of a base portion of the light irradiation device according to the present invention.

FIG. 3 is a partial cross-sectional front view showing a state where a handpiece according to the present invention is mounted on a base portion according to the present invention.

FIG. 4a is a front view of a control unit of a base portion of the light irradiation device according to the present invention. FIG.
It is a right view of the control unit of the base part of the light irradiation apparatus which concerns on this invention.

5a and 5b are circuit diagrams of a device in a handpiece of the light irradiation device according to the present invention.

FIGS. 6A, 6B and 6C are circuit diagrams of a control unit of a base portion of the light irradiation device according to the present invention.

FIG. 7a is a side view of a heat radiation ring of a handpiece of the light irradiation device according to the present invention. FIG. 7b is a rear view of the heat radiation ring of the handpiece of the light irradiation device according to the present invention.

FIG. 8a is a sectional side view of a chuck of a handpiece of the light irradiation device according to the present invention. FIG. 8B is a rear view of the chuck of the handpiece of the light irradiation device according to the present invention.

FIG. 9 is a simplified side view of an LED module of the light irradiation device according to the present invention.

FIG. 10 shows an LE of the light irradiation device according to the present invention.
It is a side sectional view of the module of D.

FIG. 11A is a perspective view of a light irradiation device according to the present invention;
It is front sectional drawing of another Example of the holder used for the module of ED. FIG. 11b is a plan view of another embodiment of the holder used for the LED module of the light irradiation device according to the present invention. FIG. 11c shows the L of the light irradiation device according to the present invention.
FIG. 10 is a perspective view of another embodiment of the holder used for the ED module. FIG. 11d shows the LE of the light irradiation device according to the present invention.
It is a perspective view of another Example of the holder used for the module of D.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H037 BA03 DA03 DA04 DA06 DA15 5F041 BB03 BB06 DB01 DC07 DC22 DC81 EE25 FF16

Claims (41)

[Claims] 1. A light irradiation apparatus comprising: a plurality of light irradiation units having directivity; and light irradiation units arranged so as to collect light output from the plurality of light irradiation units. 2. The light irradiation device according to claim 1, wherein said light irradiation means comprises an LED or a laser element. 3. The light irradiation device according to claim 1, wherein said light irradiation means comprises a combination of an LED and a laser element. 4. The light irradiation device according to claim 1, further comprising a power supply unit for supplying power to said light irradiation unit. 5. A plurality of directional light irradiating means, and holding means for holding the plurality of light irradiating means at a predetermined angle so that light output from the plurality of light irradiating means is collected. A light irradiation device comprising: 6. The light irradiation device according to claim 5, wherein said light irradiation means comprises an LED or a laser element. 7. The light irradiation device according to claim 5, wherein the light irradiation means is a combination of an LED and a laser element. 8. The light irradiation device according to claim 5, further comprising a power supply unit for supplying power to said light irradiation unit. 9. The light irradiating apparatus according to claim 5, further comprising a light guide for guiding condensed light output from said light irradiating means to a predetermined position. 10. The light irradiation device according to claim 5, wherein said holding means comprises a main body and a plurality of holes formed therein. 11. The light irradiation device according to claim 10, wherein each of the plurality of holes of the holding means has an LED inserted therein.
A light irradiation device formed so as to hold each LED at a predetermined angle and to condense light output from each LED. 12. The light irradiation device according to claim 10, wherein the main body of said holding means is formed of a flat plate. 13. The light irradiation device according to claim 10, wherein a main body of said holding means has a curved surface. 14. A plurality of light irradiating means having directivity, a substrate for supplying power to the light irradiating means, and a plurality of light irradiating means which are output from the plurality of light irradiating means while being held at a predetermined angle. A light irradiating device, comprising: holding means for collecting light. 15. A plurality of directional light irradiators, a substrate for supplying power to the light irradiators, and a plurality of light irradiators output from the plurality of light irradiators while holding the plurality of light irradiators at a predetermined angle. A light irradiating apparatus comprising: holding means for condensing the light; and a member disposed around the holding means and the substrate. 16. A plurality of directional light irradiators, a substrate for supplying power to the irradiators, and a plurality of light irradiators output from the plurality of irradiators while holding the plurality of irradiators at a predetermined angle. A light irradiating apparatus comprising: holding means for condensing the light; and a member arranged around the holding means and the substrate. 17. The light irradiation device according to claim 16, wherein said holding means comprises a main body and a plurality of holes formed therein. 18. The light irradiation device according to claim 17, wherein each of the plurality of holes of the holding means has an LED inserted therein.
A light irradiation device formed so as to hold each LED at a predetermined angle and to condense light output from each LED. 19. The light irradiation device according to claim 17, wherein the main body of the holding means is formed of a flat plate. 20. The light irradiation device according to claim 17, wherein the main body of the holding means has a curved surface. 21. The light irradiation device according to claim 16, wherein the member is a ring-shaped heat radiation member. 22. The light irradiation device according to claim 16, wherein a fluid having excellent thermal conductivity is contained in a space surrounded by said substrate, said holding means, and said member. 23. The light irradiation device according to claim 16, further comprising a light guide for guiding the light output from the light irradiation means and collected to a predetermined position. 24. The light irradiation device according to claim 23, further comprising: a mounting hole into which the light guide is inserted at an output end of the light irradiation device; and a spring attached to an inner surface of the mounting hole. A biasing ball bearing is provided, and a groove for engaging with the ball bearing is formed on an outer peripheral surface of an end portion of the light guide means, and when the light guide means is inserted into the mounting hole, A ball bearing is engaged with the groove of the light guide means, whereby the light guide means can be easily attached to and detached from the mounting hole, and the light guide means rotates freely inside the mounting hole. Light irradiation device that can. 25. The light irradiation device according to claim 14, further comprising a controller for controlling irradiation time and irradiation intensity of said light irradiation means. 26. The light irradiation apparatus according to claim 15, further comprising: a controller for controlling irradiation time and irradiation intensity of the light irradiation means. 27. The light irradiation device according to claim 16, further comprising a controller for controlling irradiation time and irradiation intensity of said light irradiation means. 28. A light irradiating device comprising a portable handpiece and a base placed when the handpiece is not used, wherein the handpiece is provided with a plurality of directional light irradiating means; A substrate for supplying power to the irradiating unit, a holding unit for holding the plurality of light irradiating units at a predetermined angle so that light output from the plurality of light irradiating units is collected, and the light irradiating unit A light guide that guides the collected light output from the light source to a predetermined position, a controller that controls the irradiation time and irradiation intensity of the light irradiation unit, and a battery that supplies power to the controller and the light irradiation unit. The base unit, a holding unit that holds the handpiece, a power supply unit for supplying power to a battery of the handpiece, and an irradiation time and an irradiation intensity of the light irradiation unit. You can program the light irradiation device and a control unit means for sending the program to the controller of the handpiece. 29. A light irradiation apparatus according to claim 28, wherein said light irradiation means is composed of an LED or a laser element. 30. A light irradiation apparatus according to claim 28, wherein said light irradiation means is a combination of an LED and a laser element. 31. The light irradiation device according to claim 28, further comprising: a member disposed around the holding means and the substrate. 32. The light irradiation apparatus according to claim 28, wherein said holding means comprises a main body and a plurality of holes formed in said main body. 33. The light irradiation device according to claim 28, wherein each of the plurality of holes of the holding means has an LED inserted therein.
A light irradiation device formed so as to hold each LED at a predetermined angle and to condense light output from each LED. 34. The light irradiation device according to claim 32, wherein a main body of said holding means is formed of a flat plate. 35. The light irradiation device according to claim 32, wherein the main body of the holding means has a curved surface. 36. The light irradiation device according to claim 31, wherein the member is a ring-shaped heat radiation member. 37. The light irradiation device according to claim 31, wherein the substrate, the holding means, and the member form a space therein, and accommodate a fluid having excellent thermal conductivity in the space. 38. The light irradiation device according to claim 28, wherein the controller of the handpiece includes an LED indicating an irradiation time and an irradiation intensity state of the light irradiation unit and an LED indicating a voltage state of the battery. . 39. The light irradiation device according to claim 28, wherein the control unit means of the base unit includes a switch for programming an irradiation time and an irradiation intensity of the light irradiation means, and the controller of the handpiece is A light irradiation device comprising a memory, wherein a program set by the control unit means is uploaded to a memory of a controller of the handpiece. 40. The light irradiation apparatus according to claim 28, wherein the control unit means of the base unit has a display panel, and displays the contents of a program of irradiation time and irradiation intensity of the light irradiation means on the display panel. Light irradiation device that can be made. 41. The light irradiating apparatus according to claim 28, wherein the control unit means of the base unit is configured to control the display panel when the light irradiation by the handpiece is completed and the handpiece is returned to the base unit. A light irradiation device capable of displaying a state of the handpiece.