WO2004095590A1 - 自発光装置 - Google Patents
自発光装置 Download PDFInfo
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- WO2004095590A1 WO2004095590A1 PCT/JP2004/005674 JP2004005674W WO2004095590A1 WO 2004095590 A1 WO2004095590 A1 WO 2004095590A1 JP 2004005674 W JP2004005674 W JP 2004005674W WO 2004095590 A1 WO2004095590 A1 WO 2004095590A1
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- light
- self
- control circuit
- photoelectric conversion
- luminous device
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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- H—ELECTRICITY
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- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/0248—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies
- H01L31/0352—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
- H01L31/035272—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions characterised by at least one potential jump barrier or surface barrier
- H01L31/03529—Shape of the potential jump barrier or surface barrier
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
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- H01L2924/01—Chemical elements
- H01L2924/01015—Phosphorus [P]
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- H01L2924/01—Chemical elements
- H01L2924/01047—Silver [Ag]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Definitions
- the present invention relates to a spontaneous light emitting device that causes a light emitting body to emit light by electric power generated by a photoelectric conversion element.
- Japanese Patent Application Laid-Open No. 9-149213 discloses a flat type solar cell, a plurality of light emitting diodes provided around the solar cell, and power generated by the solar cell.
- a road-mounted signal device having a storage battery and the like has been proposed. In this signal device, the entire device is installed buried in the road, and the power generated by the solar battery is stored in the storage battery during the daytime, and the light-emitting diode blinks at night by the power stored in the storage battery.
- Japanese Unexamined Patent Publication No. Hei 8-199513 discloses that a flat-type solar cell, a light-emitting diode, a storage battery, an electric circuit, and the like are provided, and those components are buried in a transparent epoxy resin.
- Luminescent marker devices have been proposed. In this light-emitting marker device, the power generated by the solar cell is stored in the storage battery during the day, and the light-emitting diode is flashed by the power at night. The weather resistance is improved by burying the constituent members in epoxy resin.
- An object of the present invention is to provide a small and light-weight self-luminous device that can be manufactured at low cost, regardless of the location of the generated power. Disclosure of the invention
- the self-luminous device of the present invention includes a spherical photoelectric conversion element having a substantially spherical light receiving surface, a lens member that guides or condenses light on the spherical photoelectric conversion element, and power generated by the spherical photoelectric conversion element. It is characterized by comprising a light-emitting body that emits light, and a sealing material that secures the whole and is integrated.
- a self-luminous device when the incident light enters the self-luminous device, the incident light is guided or condensed by the lens member, and the incident light is transmitted by the almost spherical light receiving surface of the spherical photoelectric conversion element. The light is received to generate electric power, and the electric power causes the luminous body to emit light.
- the light receiving surface of the spherical photoelectric conversion element is formed in a substantially spherical shape, so that power is generated on average during the incident light, regardless of the incident angle of the incident light.
- a plurality of spherical photoelectric conversion elements connected in series are provided as the spherical photoelectric conversion elements.
- It has a capacitor for storing the electric power generated by the spherical photoelectric conversion element.
- a light emission control circuit is provided for controlling energization of the light emitter.
- a light detection sensor is incorporated in the light emission control circuit.
- the light emission control circuit includes an astable multivibrator including two transistors and a plurality of resistors.
- a charge control circuit for controlling charging of the storage device is provided.
- the lens member and the sealing material are made of the same kind of synthetic resin material. 8) A partial spherical reflecting member made of metal capable of reflecting incident light is provided on the lower surface side of each spherical photoelectric conversion element.
- the reflection member is a lead frame.
- the light detection sensor is an ultraviolet sensor
- the light emission control circuit is provided with a DC amplifier circuit that amplifies and outputs a voltage corresponding to the ultraviolet intensity detected by the ultraviolet sensor.
- the plurality of luminous bodies are provided, and the luminescence control circuit is provided from the ultraviolet sensor. Based on the output of (1), any one of the light emitters emits light.
- a Schmitt trigger indicator and a resistor are incorporated in parallel in the light emission control circuit to blink the light emitter.
- the battery is a manganese dioxide-lithium secondary battery.
- a reflection member made of a transparent resin capable of reflecting light is provided near the spherical photoelectric conversion element and the light emitting body.
- the light detection sensor is cadmium sulfide (CdS).
- FIG. 1 is a plan view of a self-luminous device according to Embodiment 1 of the present invention.
- FIG. 2 is a sectional view taken along the line II-II in FIG.
- FIG. 3 is a cross-sectional view of the spherical photoelectric conversion element.
- FIG. 4 is a block diagram illustrating a control system of the light emitting device.
- FIG. 5 is a circuit diagram illustrating a light emission control circuit.
- FIG. 6 is a circuit diagram illustrating a charge control circuit.
- FIG. 7 is a circuit diagram of a light emission control circuit according to a modification.
- FIG. 8 is a cross-sectional view of a spherical photoelectric conversion element according to a modification.
- FIG. 1 is a plan view of a self-luminous device according to Embodiment 1 of the present invention.
- FIG. 2 is a sectional view taken along the line II-II in FIG.
- FIG. 3 is a cross-sectional view of the
- FIG. 9 is a plan view of the self-luminous device of the second embodiment.
- FIG. 10 is a sectional view taken along line X--X of FIG.
- FIG. 11 is a plan view of a panel-shaped light emitting device.
- FIG. 12 is a sectional view taken along line XII-XII in FIG.
- FIG. 13 is a plan view of the ultraviolet monitor device according to the third embodiment.
- FIG. 14 is a sectional view taken along line XIV-XIV in FIG.
- FIG. 15 is a circuit diagram of a light emission control circuit of the ultraviolet monitor device of FIG.
- FIG. 16 is a perspective view of the self-luminous cube of the fourth embodiment.
- FIG. 17 is a plan view of the self-luminous nameplate of the fourth embodiment.
- FIG. 18 is a cross-sectional view of the self-luminous name plate of FIG.
- FIG. 19 is a circuit diagram of a light emission control circuit of the self-luminous name plate of FIG.
- FIG. 20 is a plan view of the four-color self-luminous device of the sixth embodiment.
- FIG. 21 is a sectional view taken along line XXI-XXI in FIG.
- FIG. 22 is a circuit diagram of a light emission control circuit of the four-color self-luminous device of FIG.
- FIG. 23 is a plan view of the self-luminous pendant of the seventh embodiment.
- FIG. 24 is a sectional view taken along line XXIV-XXIV of FIG. BEST MODE FOR CARRYING OUT THE INVENTION Example 1 (see FIGS. 1 to 7)
- This embodiment is an example in which the present invention is applied to a portable self-luminous device in which a light emitting diode blinks only in a low light condition such as at night.
- the self-luminous device 1 includes six spherical photoelectric conversion elements 2, a light emitting diode 3, a sealing material 4, and a control circuit 5.
- the spherical photoelectric conversion element 2 is similar to that described in detail in Japanese Patent Application Laid-Open No. 2001-168369, and will be briefly described. As shown in FIG. 3, the spherical photoelectric conversion element 2 has a spherical crystal 10 made of a p-type silicon semiconductor having a diameter of about 1.5 mm and a resistivity of about 1 ⁇ cm, and a substantially spherical pn junction.
- the electromotive force of the spherical photoelectric conversion element 2 is about 0.6 V, and can output a current of about 3 to 3.5 mA.
- the six spherical photoelectric conversion elements 2 are arranged around the light emitting diode 3 at intervals of about 60 °.
- the positive electrode 13 of each spherical photoelectric conversion element 2 is electrically connected to the negative electrode 14 of the adjacent spherical photoelectric conversion element 2 by a copper wire 18, and the six spherical photoelectric conversion elements 2 are connected in series.
- the positive and negative electrodes 13 and 14 of the spherical photoelectric conversion element 2 are used to charge the generated power. are connected to the control circuit 5.
- the light emitting diode 3 has an A 1 GaAs heterostructure, and As shown in the figure, the self-luminous device 1 is disposed substantially at the center.
- the light emitting diode 3 blinks and emits light only in a low light condition such as at night due to the power generated by the spherical photoelectric conversion element 2 and charged in the battery 21 by the light emission control circuit 22 described later.
- the sealing material 4 is made of a suitable synthetic resin, for example, an epoxy resin, and the whole of the spherical photoelectric conversion element 2, the light emitting diode 3, the control circuit 5, and the like are fixed and integrated.
- a condensing lens section 6 for guiding or condensing light at a position corresponding to the outer surface side of each spherical photoelectric conversion element 2 is provided on an upper surface of the lapping material 4, and a light projecting lens section at a position corresponding to the light emitting diode. 7 is formed physically.
- the surface of the condenser lens section 6 is formed in a hemispherical shape with the spherical photoelectric conversion element 2 as a center, and the light incident on the surface of the condenser lens section 6 is converted into a spherical photoelectric conversion element. The light is focused on the element 2.
- the surface of the light projecting lens unit 7 is formed in a partially spheroidal shape, and light emitted by the light emitting diode 3 is diffused by the light projecting lens unit 7 and emitted to the outside.
- the epoxy resin constituting the sealing material 4 including the lens portions 6 and 7 can transmit at least light that can be photoelectrically converted by the spherical photoelectric conversion element 2.
- the control circuit 5 includes a charge control circuit 20, a capacitor 21 composed of a capacitor, and a light emission control circuit 22.
- the charge control circuit 20, the capacitor 21, and the light emission control circuit 22 are mounted on the same substrate, and are provided below the spherical photoelectric conversion element 2 and the light emitting diode 3, as shown in FIG. I have.
- the control circuit 5 when power is generated by the spherical photoelectric conversion element 2 such as in the daytime, the light emission of the light emitting diode 3 is inhibited by the light emission control circuit 22, and the generated power is output by the charge control circuit 20.
- the light emitting diode 3 is driven to blink using the power stored in the battery 21 by the light emission control circuit 22.
- the charge control circuit 20 controls charging of the battery 21, prevents overcurrent to the battery 21, and also prevents reverse current to the spherical photoelectric conversion element 2. As shown in FIG. 6, the charge control circuit 20 includes a diode D for preventing backflow and a constant voltage element ZD. Next, the operation of the charge control circuit 20 will be described.
- the electric power generated by the power generation device 2A in which the six spherical photoelectric conversion elements 2 are connected in series is charged in the battery 21 via the diode D.
- the diode D is connected to the power generation device 2 A from the power storage device 21 when the light incident on the power generation device 2 A decreases and the output voltage of the power storage device 21 is larger than the output voltage of the spherical photoelectric conversion element 2. This is to prevent the current from flowing backward.
- the constant-voltage element ZD allows the power generated by the power generation device 2A to flow to the ground to prevent an overcurrent to the capacitor 21 and 1 can extend the life.
- the constant voltage element ZD may be omitted.
- the light emission control circuit 22 controls the energization of the light emitting diode 3 and blinks the light emitting diode 3 in a low light state such as at night.
- the light emission control circuit 22 includes a transistor having two transistors Ql and Q2, four resistors Rl, R2, R3 and R4, and capacitors C1 and C2.
- the light detection sensor 23 is built into a stable multivibrator circuit.
- the light detection sensor 23 is a light response resistance element mainly composed of CdS, and its resistance value changes according to the amount of light received.
- the base potential of the transistor Q2 becomes equal to or higher than the threshold value, and the force flowing from the resistor R4 to the ground, the resistance value of the resistor R4 51 k ⁇ and the maximum voltage 3 V applied to the resistor R4,
- the maximum current that flows is only a few 10 ⁇ A, while the current flowing through the power generating device 2 A ⁇ the current flowing through the capacitor 21 is a few mA, so it is almost impossible to charge the capacitor 21 No effect.
- the base potential of Q 1 When the base potential of Q 1 reaches the threshold value, the state between the collector and emitter of the transistor Q 1 is instantaneously turned on from the cut-off state.
- a positive charge is stored on the electrode on the resistor R1 side of the capacitor C1
- a negative charge is stored on the electrode on the resistor R3 side. Therefore, the conduction between the collector and the emitter of the transistor Q 1 instantaneously lowers the potential of the connection point P 1 between the light emitting diode 3, the resistor R 1, and the capacitor C 1, and the electric charge stored in the capacitor C 1 As a result, the base potential of the transistor Q2 becomes lower than the threshold value, and the transistor Q2 is cut off.
- the base potential of the transistor Q2 gradually rises.
- the state between the collector and the emitter of the transistor Q2 is instantaneously turned on from the cutoff state.
- the collector of the transistor Q2 is short-circuited to the ground by the conduction of the transistor Q2
- the electric charge stored in the capacitor C2 causes the base potential of the transistor Q1 to instantaneously drop below the threshold value, and The collector-emitter 1 is momentarily cut off from the conductive state.
- the transistor Q2 When the transistor Q2 conducts, the light emitting diode 3, the capacitor C1, and the transistor Current flows through the path of the base-emitter of the transistor Q2, the resistance R3, and the path of the base-emitter of the transistor Q2.
- the capacitor C1 When the capacitor C1 is charged by a predetermined amount with the current flowing through the light emitting diode 3, no current flows through the light emitting diode 3, and the light emitting diode 3 is turned off. The accumulated charge is gradually discharged to the capacitor C 2 by the current flowing through the resistor R 2, and then charged.
- the base potential of the transistor Q1 gradually rises and reaches a threshold value, the transistor Q1 is turned on while the transistor Q2 is turned off, and the light emitting diode 3 is turned on. Emit light again. Thereafter, the above operation is repeated, and the light emitting diode 3 is driven to blink.
- the internal resistance of the light-emitting diode 3 that serves as the charging path for the capacitors C1 and C2, and the resistance of the resistors R3 and R2 that serve as the discharging paths are sufficiently larger than the resistance of the resistance R4. Therefore, the time between the blinks of the light emitting diode 3 is determined by the discharge times of C 1 and C 2 respectively. That is, the time during which the light is emitted and the time when the light is turned off are (electrical capacity of the capacitor C1) (the resistance of the resistor 13), (electrical capacity of the capacitor C2) X (the resistance of the resistor R2). Value).
- the sample is charged under the illuminance of 100, OOOlx in the solar simulator and stored in the capacitor 21 1 hour.
- the light emitting diode 3 can blink for 8 hours or more in a light emitting pattern with a light emission luminance of 1 to 3 mcd and a duty ratio of 30%.
- the self-luminous device 1 has a diameter of about 20 mm, a thickness of about 3 min, and a weight of about 5 g in plan view.
- the self-luminous device 1 using a 0.47 F capacitor as the battery 21, the battery was charged under the illuminance of 100, OOOlx in the solar simulator, and stored in the battery 21 in 20 minutes, and the light emission luminance :! It is possible to make the light-emitting diode 3 blink for 2 hours or more in a light-emitting pattern of up to 3 mcd and a duty ratio of 30%.
- the self-luminous device 1 having this configuration has a diameter of about 12 mm, a thickness of about 3 and a weight of about 3 g in a plan view.
- the self-luminous device 1 the light receiving surface (pn junction 11) of the spherical photoelectric conversion element 2 for generating electric power is formed in a substantially spherical shape. Power can be generated even for incident light from the outside, power can be generated without choosing the installation location and installation angle, etc., and the electricity can be stored in the battery 21.Therefore, the degree of freedom between the installation location and the installation angle is improved. be able to.
- the provision of the six spherical photoelectric conversion elements 2 makes it possible to increase the power generation voltage six times as compared with the case where power is generated by one spherical photoelectric conversion element 2, thereby realizing a reduction in charging time.
- the condenser lens member 6 Since the condenser lens member 6 is formed, the light can be condensed and received by the spherical photoelectric conversion element 2, and the efficiency of introducing light such as sunlight can be improved. As described above, for example, it is possible to blink the light emitting diode 3 for 8 hours by storing electricity for 1 hour, thereby preventing the situation where the light emitting diode 3 does not emit light at night even if the weather is slightly bad during the day. Can be.
- the self-luminous device 1 can be extremely compact and lightweight, and therefore can be easily carried. Even if the self-luminous device 1 is attached to a bag, a hat, or the like, there is almost no burden on the user. Absent.
- the spherical photoelectric conversion element 2, light-emitting diode 3, control circuit 5, etc. are fixed and integrated with the sealing material 4 including the lens parts 6 and 7, so they are extremely resistant to rain and dust, and have excellent weather resistance. It can be installed anywhere and will not be damaged when carried. By configuring the lens portions 6 and 7 with the same epoxy resin as the sealing material 4, the strength can be further improved.
- the light emitting diode 3 can emit light in a state where power cannot be generated by the spherical photoelectric conversion element 2 such as at night.
- the light emission diode 3 can be made to blink, and the visibility from the surroundings can be improved.
- the light detection sensor 23 is installed at the position shown in Fig. 5, the current flowing from the battery 21 to the ground is minimized to reduce the charging time and the light emission of the light emitting diode 3 in a situation with much light. Can be banned. Since the charge control circuit 20 shown in FIG.
- the light emission control circuit 22A is obtained by applying a light detection sensor 23 to a general IC type astable multivibrator 25. This will be briefly described.
- the current output from the capacitor 21 flows to the ground via the resistor R5 and the light detection sensor 23, and the current is output from the NAND circuit ND4. Since the input terminal I2 is always kept at the low level, the output of the NAND circuit ND4 goes to the high level. Therefore, no current flows through the light emitting diode 3, and the light emitting diode 3 does not emit light.
- the resistor R5 has a very large resistance value, even if light is detected by the light detection sensor 23, the power is output from the power storage 21 via the resistor R5. The current is small and has little effect on the charging of the capacitor 21.
- the resistance value of the light detection sensor 23 increases, and the light emission control circuit 22A operates in a state where almost no current flows through the light detection sensor 23.
- the operation will be described. In this state, almost no current flows through the light detection sensor 23, so that the input terminal I2 of the NAND circuit ND4 is always at a high level.
- the input side of the NAND circuit ND 1 is at a low level and no charge is stored in the capacitor C 4
- the output side of the NAND circuit ND 1 is at a high level
- the output of the NAND circuit ND 1 and the capacitor C 4 are at a high level. 4
- resistor R7, diode D2 NAND current flows to the output of ND2, and charge is stored in capacitor C4.
- the output of the NAND circuit ND2 goes high, the input of the NAND circuit ND1 also goes high. No current flows through the diode D2, and current flows to the output of the NAND circuit ND2, the capacitor C3, the resistor R6, the diode Dl, and the output of the NAND circuit ND1. Since the output of the NAND circuit ND 1 is low level, the charge stored in the capacitor C 4 is discharged. When electric charge is accumulated in the capacitor C3 by the current from the output of the NAND circuit ND2, the voltage of the input of the NAND circuit ND1 gradually decreases, and when the voltage falls below the threshold voltage, the output of the NAND circuit ND1 becomes high. Level, the light emitting diode 3 emits light. As described above, the light emitting diode 3 is driven to blink by repeating the above operation.
- the self-luminous device 1 having the above configuration can be configured to have a diameter of about 20 mm, a thickness of about 8 mm, and a weight of about 7 g in plan view.
- Example 2 see FIGS. 9 to 12)
- This embodiment is an example in which the present invention is applied to a self-luminous device having a wavelength conversion display function that receives infrared light of sunlight, converts it into visible light, and emits light. .
- the self-luminous device 101 includes six spherical photoelectric conversion elements 102 (conversion elements), a visible light LED chip 103, a sealing material 104, and lead frames 131 and 132. It has. Since the six conversion elements 102, the sealing material 104, the circuit for connecting the six conversion elements 102 in series, the lens unit 106, and the like are almost the same as those in the above-described embodiment, only different configurations will be described.
- the conversion element 102 also generates power by visible light of sunlight, but is particularly excellent in power generation characteristics by infrared rays.
- the LED chip 103 emits colored visible light by the electric power generated by the conversion element 102.
- the sealing material 104 is made of, for example, a transparent synthetic resin such as an epoxy resin.
- the six conversion elements 102, the LED chip 103, and the entirety of the lead frames 131, 132, and the like are integrally fixed in a buried state. .
- each condenser lens 106 is formed in a hemispherical shape.
- one light projecting lens unit 107 is formed in a hemispherical shape with the LED chip 103 as a center.
- Each of the five lead frames 131 and one lead frame 1 32 has a partially spherical reflecting portion capable of reflecting incident light, and the lead frame 132 has an extension 132 a extending toward the center.
- the conversion elements 102 are respectively located at the focal positions of the reflecting portions of the six lead frames 131 and 132. Therefore, the infrared light transmitted without being incident on the conversion element 102 is reflected by the reflection portions of the lead frames 131 and 132, and is incident on the conversion element 102 disposed at the focal position of the reflection portion.
- the positive electrode 113 of the conversion element 102 is connected to the corresponding reflection portions of the lead frames 131 and 132 by a conductive adhesive. Extension of lead frame 132 1 3
- the positive electrode 133 of the LED chip 103 is connected to the lower surface of 2a by a conductive adhesive, and the negative electrode 134 of the LED chip 103 is connected to the electrode 135 adjacent to the LED chip 103 by a copper wire 118. I have.
- the electrode 135 is connected to the negative electrode 114 of one conversion element 102 by a copper wire 118.
- each lead frame 131 is electrically connected to the negative electrode 114 of the adjacent conversion element 102 by a copper wire 118, and the six conversion elements 102 are connected to the lead frame 131 as shown in the figure. , 132 and five copper wires 118 connected in series.
- the self-luminous device 101 generates electric power when receiving infrared light by the six conversion elements 102, and supplies electric power to the LED chip 103 to emit colored light. Therefore, it corresponds to a wavelength conversion device that converts invisible infrared light into visible light.
- the self-luminous device 101 can be used alone, as shown in FIGS. 11 and 12, a plurality of self-luminous devices 101 are arranged between two transparent panels 137 and embedded in a transparent synthetic resin. By sealing in a shape, a panel-shaped self-luminous device 138 can be formed. In the case of the self-luminous device 138 in FIGS. 11 and 12, the self-luminous devices 101 are arranged in a matrix of 3 rows and 4 columns.
- the LED chip 103 can be used as a display device that outputs red light indicating a danger display when headlights of an oncoming vehicle are irradiated. Further, by arranging a large number of LED chips 103 in a predetermined figure or character shape, the figure or character can be displayed. In addition, various figures and characters can be displayed by arranging a large number of LED chips 103 in a dot matrix and controlling the on / off thereof. Other configurations, operations, and effects are the same as those in the embodiment.
- This embodiment is an example in which three light emitting diodes having different emission colors are provided, and the present invention is applied to an ultraviolet light monitor device which is a self light emitting device that emits a light emitting diode selected according to the intensity of ultraviolet light. Only for configurations that differ from the first embodiment explain.
- the ultraviolet ray monitor device 201 has 24 spherical photoelectric conversion elements 202 (conversion elements) and three light emitting diodes 203 that emit light in three colors of RGB. , An ultraviolet sensor 222, a sealing material 204, a printed circuit board 206, a light emission control circuit 205, and the like.
- the three light emitting diodes 2 • 3 are a red (R) light emitting diode LED1, a yellow (Y) light emitting diode LED2, and a green (G) light emitting diode LED3.
- the ultraviolet light intensity detected by the ultraviolet light sensor 22 3 is divided into three stages of level 1 (weak), level 2 (medium), and level 3 (strong).
- the G, Y, and R light emitting diodes light up in response to steps 2 and 3.
- the 24 conversion elements 202 are arranged in a matrix of 6 rows and 4 columns on the surface of the printed circuit board 206.
- the conversion element 202 is the same as the spherical photoelectric conversion element 2 of Example 1, but is arranged on the surface of the printed circuit board 206 with the conductive directions connecting the positive and negative electrodes aligned in the column direction.
- the conversion elements 202 in each column are connected in series by wire bonding, and the conversion elements 202 in each row are connected in parallel.
- the 24 conversion elements 202 are connected in series / parallel to form a power generation device 221.
- This power generation device 222 generates a photovoltaic power of about 3.6 V when it is sunny.
- the ultraviolet sensor 222 is formed of a photodiode, and generates a voltage corresponding to the intensity of the received ultraviolet light.
- the encapsulant 204 made of a transparent epoxy resin is composed of 24 conversion elements 202, three light emitting diodes 203, a printed circuit board 206, an emission control circuit 205, and ultraviolet rays. The entirety of the sensor 222 and the like is covered and integrated.
- a reflection film for reflecting incident light toward the conversion element 202 is formed on the surface of the printed circuit board 206.
- a lens portion corresponding to the conversion element 202 may be integrally formed on the surface of the sealing material 204.
- An emission control circuit 205 is incorporated on the back side of the printed circuit board 206 and is covered with the sealing material 204.
- the light emission control circuit 205 includes a DC amplification circuit 241 and a diode drive circuit 242, and emits light in accordance with an output of the ultraviolet sensor 223.
- the light emitting diode 203 is driven so that the diode 203 emits light.
- the DC amplifier circuit 241 is connected to the ultraviolet sensor 223, and the DC amplifier circuit 241 includes operational amplifiers OP1 and OP2, resistors R9 to R15, and capacitors C5 to C7, and is detected by the ultraviolet sensor 223.
- the voltage generated according to the intensity of the ultraviolet light is amplified and output.
- the operational amplifiers OP 1 and ⁇ P 2 are inverting amplifiers to which feedback is applied by the resistors R11 and R15, and can operate with a unipolar power supply based on a solar cell output.
- a reference voltage is applied to the + input terminals of the operational amplifiers P1 and OP2 from the power generation device 221 by the voltage dividing resistors R9, R10; R13, R14.
- the output terminal of the ultraviolet sensor 223 is connected to one input terminal of the operational amplifier OP1.
- the ultraviolet sensor 223 When the ultraviolet sensor 223 receives sunlight, it generates a voltage corresponding to the ultraviolet intensity of the sunlight.
- the input voltage is inverted and amplified by the feedback action of the resistor R11 so that the voltage of one input terminal becomes the same potential as the voltage of the + input terminal.
- the potential of the output terminal of the operational amplifier OP1 decreases.
- the operational amplifier OP2 the input voltage is inverted and amplified. Therefore, the output of the ultraviolet sensor 223 is subjected to non-inverting amplification by repeating the inverting amplification twice by the operational amplifiers OP1 and OP2, and the output voltage of the amplifier OP2 increases as the intensity of ultraviolet light increases.
- the output voltage of the operational amplifier OP2 is applied to one input terminal of the comparators CP1 and CP2 of the diode drive circuit 242.
- the diode drive circuit 242 for driving the three light emitting diodes 203 (LED1 to LED3) is connected to the power generation device 221.
- the diode drive circuit 242 includes the comparators CP1 and CP2 and the resistor R16. ⁇ R21.
- Reference voltages V 1 and V 2 are applied to the comparators CP 1 and CP 2 from the power generation device 221 via the voltage dividing resistors R 16 to R 18.
- Comparators CP 1 and CP 2 compare the reference voltages V 1 and V 2 at the + input terminal with the voltage at one input terminal, and output a “H” level signal if the reference voltages VI and V 2 are higher. Output, and if the reference voltages VI and V2 are lower, an “L” level signal is output.
- Driving light emitting diodes LED 1 to LED 3 with different emission colors according to the intensity of ultraviolet light The operation that moves will be described.
- the output voltage VO of the DC amplifier circuit 241 is lower than the reference voltage V2 applied to the comparator CP2 (the intensity of the ultraviolet light is weak; level 1)
- the output of the comparator CP2 becomes “H” level, and the light is emitted.
- the diode LE D3 emits green light.
- the "H" level signal is also output from the output terminal of the comparator CP1, the light emitting diodes LED1 and LED2 do not emit light because the input terminal and the output terminal have the same potential.
- the output voltage V0 of the DC amplifier circuit 241 is a value between the reference voltage VI of the comparator CP1 and the reference voltage V2 of the comparator CP2 (the intensity of the ultraviolet light is medium; In 2)
- an “L” level signal is output from the comparator CP2
- an “H” level signal is output from the comparator CP1. Therefore, the light emitting diode LED 2 emits yellow light.
- the light emitting diodes LED 1 and LED 3 do not emit light because the input terminal and the output terminal have the same potential.
- the output voltage VO of the DC amplifier circuit 241 is higher than the reference voltage of the comparator CP1 (the intensity of ultraviolet light is high; level 3)
- the outputs of the comparators CP1 and CP2 are both set to the “L” level. Therefore, the light emitting diode LED 1 emits red light.
- the input terminal and the output terminal do not emit light because they have the same potential.
- the ultraviolet monitor device 201 activates the green light emitting diode when the ultraviolet light is weak and the yellow light emitting diode when the ultraviolet light is medium, according to the intensity of the ultraviolet light received by the ultraviolet sensor 223. Activate, and if the ultraviolet light is strong, activate the red light emitting diode to display in three stages.
- examples of the resistance value of the resistor incorporated in the circuit and the capacitance of the capacitor are as follows.
- R9 750 kQ
- R 10 220 kQ
- R ll 220 kQ
- R 12 10 k ⁇
- R1 3 750 kQ
- R 14 220 kQ s
- R1 5 82 kQ
- R l 6 1 M ⁇
- Rl 7 470 kQ
- R 18 1 M ⁇
- R 19 56 ⁇
- R 20 22 ⁇
- R 21 22 ⁇
- C 5 68 pF
- C 6 68 pF
- ⁇ 7 10.
- the comparator is not limited to the three-stage display according to the intensity of the ultraviolet light, and that the number of comparators is three By increasing, more than four levels of display are possible.
- the number of the light emitting diodes 203 can be not limited to one for each color, but a plurality of colors can be emitted, and the emission color of the light emitting diode can be appropriately selected from various applicable light emitting diodes.
- the power generation device 221 was directly applied as a power source, but a capacitor or a secondary battery was provided instead of the power generation device 221 in FIG. 15 and the power generation device 221 in FIG. 13 was used.
- the power generation may be configured to be supplied to the capacitor or the secondary battery.
- This embodiment is an example of a case where the present invention is applied to a self-luminous cube 301 that generates electric power by a plurality of spherical photoelectric conversion elements 302 and emits a white light-emitting diode at the center of a transparent cube.
- the spherical photoelectric conversion element 302 (conversion element) and its series connection circuit are almost the same as those in the first embodiment, so that the description will be omitted, and different configurations will be described.
- the self-luminous cube 310 has eight conversion elements 302 on the upper surface side, eight conversion elements 302 on the lower surface side, and a white light emitting diode 303. And a cubic sealing material 304.
- the encapsulant 304 is made of a transparent epoxy resin formed into a cube with the upper and lower conversion elements 302 and the white light emitting diode 303 embedded and mixed.
- a white light emitting diode 303 is disposed at the center of the sealing material 304, and the whole of the sealing material 304 functions as a light transmitting member that transmits light.
- the upper and lower eight spherical photoelectric conversion elements 302 are arranged at an interval of about 45 ° in the circumferential direction inside the outer periphery of the surface of the circular translucent glass epoxy substrate 310, and the eight conversion elements 300 are provided. 2 are connected in series by a copper wire (not shown), eight conversion elements 302 are arranged on the upper surface of the upper substrate 303, and eight conversion elements are arranged on the lower surface of the lower substrate 303.
- a child 302 is provided, and the upper conversion element serial connection and the lower conversion element serial connection are connected in parallel.
- the white light diode 303 is caused to emit light directly by the power generated by the conversion element 302. Therefore, the cube shape
- the white diode 3003 emits light due to the photovoltaic force.
- the light emission is clearly visible.
- Other configurations, operations, and effects are the same as those in the embodiment.
- the present invention is applied to a self-luminous nameplate (corresponding to a self-luminous device) that emits a white light-emitting diode provided on a nameplate by photovoltaic power generated by a plurality of spherical photoelectric conversion elements.
- a self-luminous nameplate corresponding to a self-luminous device
- a white light-emitting diode provided on a nameplate by photovoltaic power generated by a plurality of spherical photoelectric conversion elements.
- the spherical photoelectric conversion element 402 is the same as the spherical photoelectric conversion element 2 of the first embodiment, detailed description will be omitted, and only different configurations will be described.
- the self-luminous name plate 401 is composed of 21 spherical photoelectric conversion elements 402 (conversion elements), a printed circuit board 406, and a white light-emitting diode 40 3, an encapsulant 404, and a light emission control circuit 405.
- Each conversion element 402 has a positive electrode 413 and a negative electrode 414. 2
- One conversion element 402 is arranged at regular intervals along the inner periphery of the upper surface of the rectangular printed circuit board 406, and the conversion elements 402 are divided into three groups of seven.
- the conversion elements 402 of each group are connected in series by a copper wire 418, and the three serially connected bodies are connected in parallel by a copper wire 419.
- a light emitting control circuit 405 is provided on the back side of the substrate 406, and these printed circuit boards 406 2 One conversion element 402, a light emitting diode 400, and a light emitting control circuit 405 are sealed.
- the self-luminous nameplate 401 is formed in a thin rectangular plate shape as a whole, being buried and integrally fixed with a stopper 404.
- the electric double-layer capacitor 4 2 1 (capacitance) as a capacitor fed from the power generation device 400 A composed of 21 conversion elements 402 through the backflow prevention diode D 3 1 F) is provided.
- the light emission control circuit 405 consists of a resistor R22, a Schmitt trigger inverter IVI connected to the white light emitting diode 4003, and a resistor R23, inverter IVI and resistor R23 connected in parallel to this. It has a connected capacitor C 8 and so on.
- the inverter IVI has a higher threshold value when shifting from the “L” level to the “H” level than the threshold value when shifting from the “H” level to the “L” level, and is less likely to malfunction due to noise and is stable Work.
- the input terminal of the inverter IVI is at "L” level, and the output terminal of the inverter IV1 outputs "H” level.
- the potential of the input / output terminal of the white light emitting diode 403 becomes the same, so that the white light emitting diode 403 does not emit light.
- the “H” level voltage output from the output terminal of the inverter I V1 is charged to the capacitor C8 via the resistor R23.
- the diode 403 repeatedly turns on and off, and blinks.
- the cycle of this repetition is determined by the resistor R 23 and the capacitor C 8, and the current flowing through the white light emitting diode 400 3 and the light emission intensity are determined by the resistor R 22.
- the present invention is applied to a four-color self-luminous device that charges a secondary battery with electricity generated by 12 spherical photoelectric conversion elements 502 and causes the four-color light-emitting diode to blink by the power.
- the spherical photoelectric conversion element 502 (conversion element) This is the same as that of the first embodiment, and the light emission control circuit 505 is provided with four sets of the same ones as the light emission control circuit 405 of the fifth embodiment.
- the four-color self-luminous device 501 has 12 conversion elements 502, four light-emitting diodes 503 having different emission colors, and a printed circuit board 506. , A sealing material 504, a light emission control circuit 505, a switch 541, and the like.
- the sealing material 504 is made of, for example, a transparent epoxy resin, and includes 12 conversion elements 502, a light emitting diode 503, a printed circuit board 506, a light emission control circuit 505, and a switch.
- the entirety of 5 4 1 etc. is fixed and integrated.
- the surface side of the sealing material 504 is formed in a convex lens shape and has a lens function.
- the four light emitting diodes 503 are a red light emitting diode (R), a blue light emitting diode (B), a yellow light emitting diode (Y), and a green light emitting diode (G). These are arranged in a matrix of 2 rows and 2 columns at the center of the upper surface of the substrate 506 on which the light emission control circuit 505 is mounted.
- the two conversion elements 502 are arranged at an interval of about 30 ° near the outer periphery of the circular substrate 506, and these conversion elements 502 are connected in series by copper wires 518. This constitutes the power generation device 502A.
- the switch 541 is installed near the lower end of the light emission control circuit 505.
- a diode D4 for preventing backflow a manganese dioxide lithium secondary battery 521 as a capacitor, a switch 541, and a light emission control circuit 505 are mounted. ing.
- the light emission control circuit 505 has four light emission control circuits for emitting red light emitting diode LED 4, blue light emitting diode LED 5, yellow light emitting diode LED 6, and green light emitting diode LED 7. Part is provided.
- Each light emission control unit is the same as the light emission control circuit 405 of the fifth embodiment, and the light emission control unit for the red light emitting diode LED 4 includes a resistor R 24, a Schmitt trigger inverter IV 2, It has a resistor R 28 connected in parallel to the impeller IV 2 and a capacitor C 9 connected to the inverter IV 2 and the resistor R 28, and operates in the same manner as the light emission control circuit 405 of the fifth embodiment. .
- the other three light emission control units have the same configuration and operate similarly.
- the power generated by the power generation device 502A is charged in the secondary battery 521, and when the switch 541 is turned on, the power is supplied from the secondary battery 521 to the power input units of the inverters IV2 to IV5 and the four light emission control units.
- the four-color light-emitting diodes LED4 to LED7 blink and emit light.
- the self-luminous device of the present invention is applied to a self-luminous pendant.
- the self-luminous pendant 601 includes six spherical photoelectric conversion elements 602, a light-emitting diode 603, a circular printed circuit board 606, a sealing material 604, and a light-emitting control circuit 605. , A light detection sensor 623, twelve beads 651, and a hook 652.
- the spherical photoelectric conversion element 602 (conversion element) is the same as that of the first embodiment, is arranged on a print substrate 606, and is connected in series by a conductor 607.
- a light emitting diode 603 and twelve beads 651 are also arranged on a printed circuit board 606, and a light emitting control circuit 605 is mounted on the back surface of the printed circuit board 606.
- the sealing material 604 is made of a transparent epoxy resin, and the six conversion elements 602, the light emitting diode 603, the lower part of the 12 beads 651, the light emission control circuit 605, and the light detection sensor 623 are used as the sealing material 604. And the whole is integrated and fixed by a sealing material 604.
- the surface of the sealing material 604 is formed in a convex partial spherical shape and functions as a lens portion. The portion other than the lower part of the 12 beads 651 is exposed outside the surface of the sealing material 604.
- Beads 651 are made of lightly colored transparent synthetic resin and can reflect light It functions as a reflection member.
- the hook 652 is formed integrally with the sealing material 604, and protrudes from the lower part of the side of the light emitting pendant 601.
- the light emitting diode 603 is arranged at the center of the self-luminous pendant 601, and the six conversion elements 602 are arranged in a circular shape around the light emitting diode 603.
- the 12 beads 651 are arranged on the entire surface side of the self-luminous pendant 601, and are arranged close to the conversion element 62 and the light emitting diode 603.
- the light emission control circuit 605 is, for example, the same circuit as the circuit of FIG. 5 of the first embodiment, and the light detection sensor 623 has a cadmium sulfide (CdS) element.
- CdS cadmium sulfide
- the conversion element 602 is small in size, but has a shape very similar to that of the beads 651, so that the conversion element 602 also exhibits a decoration function together with the beads 651.
- Fine beads may be dispersed in the sealing member 604 on the surface side of the printed circuit board 606, and in that case, a large amount of light is scattered on the surface of the beads, so that a large amount of light is converted into six conversion elements. Reach 602 and power generation efficiency increases.
- the light emitting diode 603 emits light, the light emitted therefrom is scattered on the surface of the beads and shines beautifully.
- a chain or string can be attached to the hook 652 and used as a pendant.
- a stand for a broach or a safety pin can be attached to the back surface instead of the hook 652, and used as a broach.
- the self-luminous pendant 61 1 fully charged the electric double layer capacitor (2F) in one hour under outdoor clear weather, and flashed for three hours at night.
- the light detection sensor 62 3 is provided, so light emission starts automatically at night.However, a switch is provided instead of the light detection sensor 6 23, and light is emitted only when the switch is turned on. Can be done. It is also possible to provide a plurality of light emitting diodes 60.3 having different light emitting colors so that light is emitted only when the switch is turned on. Further, a plurality of light-emitting diodes 603 having different light-emitting colors can be provided, and the light-emitting control circuit 505 as in the sixth embodiment can make the light-emitting diodes blink. Not only broaches and pendants but also smaller ones can be constructed into cell phone straps, rings, buttons, etc., and can be expected to have a variety of uses in the field of light-emitting accessories.
- the light emitting diode is configured to blink, but the light emitting diode may be configured to be constantly lit.
- the light emission control circuit includes current control ICs, integrated circuits such as operational amplifiers, and various active elements such as bipolar transistors, FETs, and diodes, as well as antibodies, capacitors, and coils.
- Various constant current circuits and constant voltage circuits using the passive elements described above can be applied.
- These electronic components can be ordinary electronic components for board mounting, such as dip-type ICs.However, from the standpoint of size and weight reduction, surface mount ICs, chip resistors, chip capacitors and other surface It is desirable to use electronic components for mounting.
- the light emission control circuit, the charge control circuit, and the capacitor may be provided on different substrates.
- the light emission control circuit and the charge control circuit may be provided on a single substrate, provided separately for the capacitor, and connected from the substrate by a copper wire or the like.
- the secondary battery when a secondary battery is used as a storage battery, when the secondary battery is deteriorated, only the secondary battery needs to be replaced, and the life of the self-luminous device can be extended by simple maintenance.
- the spherical photoelectric conversion element 2 is formed of the p-type silicon semiconductor in the spherical crystal 10.
- the spherical photoelectric conversion element 1 OA of the n-type silicon semiconductor forms a spherical photoelectric conversion element.
- the conversion element 2 B may be configured.
- the spherical photoelectric conversion element 2 A is electrically connected to the p-type diffusion layer 12 A formed near the surface of the spherical crystal 1 OA to form the pn junction 11 A and the ⁇ -type silicon of the spherical crystal.
- the negative electrode 13 ⁇ and the negative electrode 13 A formed the positive electrode 14 A and the electrodes 13 A and 14 A formed at the position facing the center of the spherical crystal 1 OA It has an insulating film 15 A formed on the uncoated surface. Furthermore, the surface of the negative electrode 13 A and the positive electrode 14 A The metal paste film 16A, 17A is coated.
- the spherical photoelectric conversion element is made of silicon.
- the present invention is not limited to silicon.
- a group IV semiconductor such as germanium, a group III-V semiconductor, a group II-VI semiconductor it may also constitute a spherical photoelectric conversion element such as by Les, 0
- the light emitting diode is constituted by the A1GaAs system, but in consideration of visibility and the like, the light emitting diode is constituted by the AIGalnP system, the AIGalnN system, and the like.
- a light emitting diode that has been used may be applied, or a resin-molded light emitting diode or a surface mounted light emitting diode may be used.
- the light emitting diode may be provided in an exposed state without forming a light projecting lens.
- the light emitting diode can be detached, so that the user can wear the light emitting diode of a desired color, and the decorativeness can be improved.
- a light source other than the light emitting diode may be applied.
- a reflective film or the like may be formed around the light emitting diode.
- the sealing material including the lens member is made of epoxy resin.
- silicone resin, acrylic resin, polycarbonate resin, fluorine resin, polyimide resin, polyvinyl butyral resin, ethylene vinyl acetate It may be made of resin, naphtran resin, cellulose acetate, or any other material that can transmit light of a predetermined wavelength that allows the spherical photoelectric conversion element to generate power.
- a flexible synthetic resin or the like the self-luminous device can be deformed, and a structure that is extremely resistant to external rags can be obtained.
- a diffusing agent with the synthetic resin, the uniformity of light emission can be improved.
- the lens member and the sealing material are integrally formed of the same epoxy resin.
- the lens member and the sealing material are separately manufactured, and each is formed of an adhesive. May be. In the case of such a configuration, the strength of the bonding by the adhesive can be increased by configuring the lens member and the sealing material with the same material.
- the lens member and the sealing material may be made of different materials.
- the condensing lens member only needs to be able to transmit light of a specific wavelength that can be generated by the spherical photoelectric conversion element.
- the material of the light projecting lens member may be colored, and a phosphor or a phosphor can be contained to provide a self-luminous device with excellent decorativeness.
- the sealing material may be made of a plastic resin such as polyolefin resin, polyamide resin, polypropylene resin, polyester resin, polystyrene resin, vinyl chloride resin, urethane resin and the like.
- the shape of the condenser lens member can be changed as appropriate, such as a hemispherical shape or a planar shape.
- a part of the spherical photoelectric conversion element is located below the light collecting lens.
- a configuration may be adopted in which a reflection film of the condenser lens member is provided so that light is guided to the spherical photoelectric conversion element.
- the light detection sensor various sensors such as a photoelectric conversion element such as a photodiode whose output voltage or current changes depending on the amount of received light can be used. Further, a spherical photoelectric conversion element can be provided as a light detection sensor. With this configuration, it is possible to further improve the miniaturization and light weight, and to reduce the manufacturing cost. 11) The number of spherical photoelectric conversion elements and light emitting diodes included in the self-luminous device can be changed as appropriate. It is desirable that the number of spherical photoelectric conversion elements is determined in consideration of a desired power generation amount, a light-collecting rate of a light-collecting lens member, and the like.
- the arrangement of the spherical photoelectric conversion elements and the light emitting diodes is not particularly limited to the above-described embodiment, and the spherical photoelectric conversion elements may be arranged linearly, or may be arranged in many rows and many columns.
- a reflective film may be provided below the spherical photoelectric conversion element.
- the shape of the self-luminous device may be various shapes such as a circle, a rectangle, and a star in plan view.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Secondary Cells (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/552,255 US7387400B2 (en) | 2003-04-21 | 2004-04-02 | Light-emitting device with spherical photoelectric converting element |
CNB2004800102423A CN100550433C (zh) | 2003-04-21 | 2004-04-20 | 自发光装置 |
CA2520824A CA2520824C (en) | 2003-04-21 | 2004-04-20 | Self light - emitting device |
AU2004231849A AU2004231849B2 (en) | 2003-04-21 | 2004-04-20 | Selfluminous device |
EP04728460A EP1617486A4 (en) | 2003-04-21 | 2004-04-20 | AUTOLUMINOUS DEVICE |
JP2005505752A JP4046241B2 (ja) | 2003-04-21 | 2004-04-20 | 自発光装置 |
KR1020057013465A KR100661067B1 (ko) | 2003-04-21 | 2004-04-20 | 자기 발광 장치 |
TW093111191A TWI265255B (en) | 2003-04-21 | 2004-04-21 | Voluntary light emitting device |
HK06108658.0A HK1088438A1 (en) | 2003-04-21 | 2006-08-04 | Selfluminous device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003115512 | 2003-04-21 | ||
JP2003-115512 | 2003-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004095590A1 true WO2004095590A1 (ja) | 2004-11-04 |
Family
ID=33307956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005674 WO2004095590A1 (ja) | 2003-04-21 | 2004-04-20 | 自発光装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7387400B2 (ja) |
EP (2) | EP1617486A4 (ja) |
JP (1) | JP4046241B2 (ja) |
KR (1) | KR100661067B1 (ja) |
CN (2) | CN100550433C (ja) |
AU (1) | AU2004231849B2 (ja) |
CA (1) | CA2520824C (ja) |
HK (2) | HK1088438A1 (ja) |
TW (1) | TWI265255B (ja) |
WO (1) | WO2004095590A1 (ja) |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006190961A (ja) * | 2004-12-31 | 2006-07-20 | Ind Technol Res Inst | 発光ダイオードパッケージ及びその製造プロセス |
US7589354B2 (en) | 2004-12-31 | 2009-09-15 | Industrial Technology Research Institute | Light emitting diode package and process of making the same |
WO2007055253A1 (ja) * | 2005-11-10 | 2007-05-18 | Kyocera Corporation | 光電変換装置 |
JP2008141149A (ja) * | 2006-11-29 | 2008-06-19 | Kaitokui Denshi Kogyo Kofun Yugenkoshi | 太陽エネルギー発光装置 |
JP2009206160A (ja) * | 2008-02-26 | 2009-09-10 | Asahi Rubber Inc | 太陽電池アセンブリ |
JP2011096987A (ja) * | 2009-11-02 | 2011-05-12 | Taisei Komu Kk | 太陽光発電パネルの診断装置、遮音壁、建造物用の窓ガラス及び乗物用の窓ガラス |
JP2013179339A (ja) * | 2013-05-13 | 2013-09-09 | Asahi Rubber Inc | 太陽電池アセンブリ |
Also Published As
Publication number | Publication date |
---|---|
AU2004231849B2 (en) | 2007-05-24 |
HK1088438A1 (en) | 2006-11-03 |
CA2520824C (en) | 2010-11-30 |
EP2259333A3 (en) | 2016-08-03 |
EP1617486A4 (en) | 2007-10-17 |
CN101387549B (zh) | 2012-10-24 |
TWI265255B (en) | 2006-11-01 |
CN1774818A (zh) | 2006-05-17 |
EP1617486A1 (en) | 2006-01-18 |
AU2004231849A1 (en) | 2004-11-04 |
KR100661067B1 (ko) | 2006-12-22 |
US20060133073A1 (en) | 2006-06-22 |
CN100550433C (zh) | 2009-10-14 |
KR20050097948A (ko) | 2005-10-10 |
JPWO2004095590A1 (ja) | 2006-07-13 |
CN101387549A (zh) | 2009-03-18 |
JP4046241B2 (ja) | 2008-02-13 |
US7387400B2 (en) | 2008-06-17 |
CA2520824A1 (en) | 2004-11-04 |
TW200426322A (en) | 2004-12-01 |
EP2259333A2 (en) | 2010-12-08 |
HK1127399A1 (en) | 2009-09-25 |
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