WO2016132622A1 - 半導体レーザ光源装置、半導体レーザ光源システムおよび映像表示装置 - Google Patents
半導体レーザ光源装置、半導体レーザ光源システムおよび映像表示装置 Download PDFInfo
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- WO2016132622A1 WO2016132622A1 PCT/JP2015/083458 JP2015083458W WO2016132622A1 WO 2016132622 A1 WO2016132622 A1 WO 2016132622A1 JP 2015083458 W JP2015083458 W JP 2015083458W WO 2016132622 A1 WO2016132622 A1 WO 2016132622A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02407—Active cooling, e.g. the laser temperature is controlled by a thermo-electric cooler or water cooling
- H01S5/02423—Liquid cooling, e.g. a liquid cools a mount of the laser
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0239—Combinations of electrical or optical elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02407—Active cooling, e.g. the laser temperature is controlled by a thermo-electric cooler or water cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/026—Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
- H01S5/0261—Non-optical elements, e.g. laser driver components, heaters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
- H01S5/4093—Red, green and blue [RGB] generated directly by laser action or by a combination of laser action with nonlinear frequency conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3144—Cooling systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3161—Modulator illumination systems using laser light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3164—Modulator illumination systems using multiple light sources
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/02208—Mountings; Housings characterised by the shape of the housings
- H01S5/02212—Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02476—Heat spreaders, i.e. improving heat flow between laser chip and heat dissipating elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
Definitions
- the present invention relates to a semiconductor laser light source device and a semiconductor laser light source system including a cooler for cooling the semiconductor laser, and an image display device including the semiconductor laser light source device or the semiconductor laser light source system.
- a solid color light source As a light source used in large halls and large-scale high-intensity projectors for digital cinemas, medium- and small-sized projectors used mainly for small meetings or presentations, and projection monitors that incorporate a projection optical system and a large screen in the housing.
- Those using solid-state light sources such as LEDs or semiconductor lasers have been widely commercialized or proposed.
- a solid color light source can be used for instant lighting and low power consumption. It is characterized by having advantages such as electric power and long life.
- semiconductor lasers also have the advantage that higher brightness and higher output can be achieved by superimposing light. Therefore, development of a high-power semiconductor laser light source device using a larger number of semiconductor lasers has been advanced as a large-sized high-intensity projector used for projection onto a large screen.
- semiconductor lasers are less susceptible to heat than other solid-state light sources such as LEDs, and the electro-optical conversion efficiency is likely to decrease significantly as the temperature of the element increases. Further, if high-power light is continuously emitted at a high temperature, deterioration is promoted and the life of the device is likely to be shortened. Therefore, in order to obtain a desired light amount even when the environmental temperature is high, a heat dissipation structure with higher cooling performance than other solid light sources is required.
- Patent Document 1 in order to dissipate a plurality of semiconductor lasers, a plurality of short-diameter wave-shaped radiation fins are provided on a pedestal to which the semiconductor lasers are attached, and a cooling fan is provided with a plurality of holes for the radiation fins.
- a structure in which a driver substrate is disposed is disclosed.
- Patent Document 2 discloses a structure in which a flexible substrate for electrically connecting a semiconductor laser and a semiconductor laser is embedded in a heat transfer member or a base of a heat sink to dissipate the semiconductor laser.
- the radiating fins formed for cooling a plurality of semiconductor lasers are cooled by a cooling fan via a driver board provided with a plurality of holes. Since the driver board blocks the wind of the cooling fan, the radiating fins cannot be efficiently cooled, the cooling performance is lowered, and the semiconductor laser cannot be efficiently cooled.
- an object of the present invention is to provide a technique capable of efficiently cooling a semiconductor laser.
- a semiconductor laser light source device includes a semiconductor laser, a cooler that cools the semiconductor laser, and a drive substrate that drives the semiconductor laser, and the cooler is opposite to the emission surface of the semiconductor laser.
- the driving substrate is disposed so as to be in contact with a surface opposite to the surface on which the semiconductor laser is disposed in the cooler.
- Another semiconductor laser light source device includes a semiconductor laser, a cooler that cools the semiconductor laser, and a drive substrate that drives the semiconductor laser, and each of the cooler and the drive substrate includes the semiconductor laser. It is arrange
- the semiconductor laser light source system according to the present invention includes a plurality of semiconductor laser light source devices.
- the video display device includes a semiconductor laser light source device or a semiconductor laser light source system.
- the thermal resistance between the semiconductor laser and the cooler can be reduced, and the semiconductor laser can be efficiently cooled.
- FIG. 1 is a configuration diagram of a video display device including a semiconductor laser light source device according to Embodiment 1.
- FIG. 1 is a diagram showing a schematic configuration of a semiconductor laser light source device according to a first embodiment.
- 1 is a diagram showing a configuration of a semiconductor laser in Embodiment 1.
- FIG. 1 is a diagram illustrating a configuration outline of a semiconductor laser light source system according to Embodiment 1.
- FIG. FIG. 6 is a diagram showing a configuration outline of a semiconductor laser light source device according to a second embodiment. 6 is a diagram illustrating a configuration of a semiconductor element in Embodiment 2.
- FIG. It is a figure which shows the other structure outline
- FIG. 1 is a diagram showing a schematic configuration of a semiconductor laser light source device according to a first embodiment.
- 1 is a diagram showing a configuration of a semiconductor laser in Embodiment 1.
- FIG. 1 is a diagram
- FIG. 5 is a diagram showing a configuration outline of a semiconductor laser light source device according to a third embodiment. It is a figure which shows the other structure outline
- FIG. It is a figure which shows the other structure outline
- FIG. It is a figure which shows the other structure outline
- FIG. It is a figure which shows the other structure outline
- FIG. 1 is a configuration diagram of a video display apparatus 300 according to the first embodiment.
- the video display device 300 includes three types of semiconductor laser light source devices 100 of red, blue, and green, an illumination optical system 101, a video display system 102, and a projection optical system 103.
- the semiconductor laser light source device 100 is a high-power semiconductor laser light source device including a plurality of semiconductor lasers.
- Light emitted from the red, blue, and green semiconductor laser light source devices 100 is synthesized by the illumination optical system 101 and converted into white light, and is irradiated to the video display system 102.
- the video display system 102 DMD (Digital Light Processing) or LCOS (Liquid Crystal On Silicon) can be used.
- the video created by the video display system 102 is enlarged by the projection optical system 103 and displayed on the screen 104.
- the video display device 300 shown in FIG. 1 is assumed to be a projector that displays white by combining three types of semiconductor laser light source devices 100 of red, blue, and green, but a combination of a semiconductor laser and a phosphor. It may be a video display device that displays white or displays white by combining a semiconductor laser and an LED.
- FIG. 2 is a diagram showing a configuration outline of the semiconductor laser light source device 100. More specifically, FIG. 2 (a) is a plan view of the semiconductor laser light source device 100, FIG. 2 (b) is a cross-sectional view taken along the line AA in FIG. 2 (a), and FIG. 1 is a side view of a semiconductor laser light source device 100.
- FIG. FIG. 3 is a diagram showing the configuration of the semiconductor laser 1. More specifically, FIG. 3 (a) is a plan view of the semiconductor laser 1, FIG. 3 (b) is a cross-sectional view taken along the line BB of FIG. 3 (a), and FIG. It is CC sectional view taken on the line of 3 (a).
- the semiconductor laser light source device 100 includes a plurality of (for example, eight) semiconductor lasers 1, a cooler 2, and a driving substrate 3. First, the semiconductor laser 1 will be described.
- the semiconductor laser 1 includes a chip 11, a light emitting layer 12, a heat dissipation block 13, a plate 14, a terminal pin 15, a CAN 16, and a glass window 17. .
- the light emitting layer 12 is a layer that emits light, and is formed on the chip 11. Since the chip 11 generates heat, it is disposed on the plate 14 in a state of being disposed on the side surface of the heat dissipation block 13, and the chip 11 radiates heat to the heat dissipation block 13.
- the terminal pin 15 is a member for supplying electric power from the outside to conduct to the chip 11 to emit light, and is connected to the chip 11 via the wire 18.
- the chip 11 Since the performance of the chip 11 deteriorates due to the influence of dust or the like, the chip 11 is sealed by the CAN 16 in a state of being disposed on the plate 14 via the heat dissipation block 13. This eliminates the influence of dust and the like.
- the glass window 17 is disposed on the upper surface of the CAN 16 and transmits light emitted from the light emitting layer 12. The emitted light is indicated by an arrow in the figure, and the same applies to other drawings.
- the cooler 2 is a member that cools the semiconductor laser 1.
- the semiconductor lasers 1 are arranged on the upper surface of the cooler 2 in two rows so that the heat dissipating blocks 13 on which the chips 11 are arranged face each other.
- the cooler 2 is disposed so as to be in contact with the lower surface of the semiconductor laser 1 (surface opposite to the emission surface of the semiconductor laser 1), and is disposed directly below the heat dissipation block 13.
- the drive substrate 3 is a substrate on which a drive circuit that drives the semiconductor laser 1 is mounted.
- the drive substrate 3 is disposed so as to be in contact with the lower surface of the cooler 2 (the surface opposite to the surface on the cooler 2 where the semiconductor laser 1 is disposed).
- the cooler 2 is formed with a cavity 2a in which a plurality of fins 7 are arranged and a plurality of through holes 2b through which the terminal pins 15 are inserted.
- the cavity 2 a is formed along the longitudinal direction at the center in the width direction of the cooler 2, located below the heat dissipation block 13, and a plurality of fins 7 are disposed below the heat dissipation block 13.
- the cooler 2 functions as a liquid cooling device.
- the flow paths are indicated by white arrows in the figure, and the same applies to other drawings.
- the plurality of through holes 2b are respectively formed at positions corresponding to the terminal pins 15 of each semiconductor laser 1.
- the drive substrate 3 is also formed with a plurality of through holes through which the terminal pins 15 are inserted.
- FIG. 4 is a diagram showing a configuration outline of the semiconductor laser light source system 200.
- the semiconductor laser light source system 200 is configured by arranging a plurality (for example, three) of semiconductor laser light source devices 100 in the horizontal direction. 4 shows a configuration in which the semiconductor laser light source device 100 includes the coolers 2 individually, the semiconductor laser 1 of the three semiconductor laser light source devices 100 is disposed in one cooler 2. May be. 1 includes the three semiconductor laser light source devices 100, the image display device 300 may include three semiconductor laser light source systems 200 instead.
- the cooler 2 is disposed so as to be in contact with the surface opposite to the emission surface of the semiconductor laser 1, and the drive substrate 3 is provided with the cooler 2. Are disposed so as to be in contact with the surface opposite to the surface on which the semiconductor laser 1 is disposed.
- the semiconductor laser 1 and the cooler 2 are brought into direct contact, the thermal resistance between the semiconductor laser 1 and the cooler 2 can be reduced, and the semiconductor laser 1 can be efficiently cooled.
- the semiconductor laser 1 and thus the semiconductor laser light source device 100 can be used for a long time.
- the semiconductor laser light source system 200 includes a plurality of semiconductor laser light source devices 100, it is possible to achieve higher output than the semiconductor laser light source device 100 alone.
- the semiconductor laser 1 can be efficiently cooled.
- the video display device 300 includes the semiconductor laser light source system 200, in addition to the above effects, an effect that higher output can be achieved than in the case where the semiconductor laser light source device 100 is provided is obtained.
- FIG. 5 is a diagram showing a schematic configuration of the semiconductor laser light source apparatus 110 according to the second embodiment. More specifically, FIG. 5A is a plan view of the semiconductor laser light source device 110, FIG. 5B is an EE sectional view of FIG. 5A, and FIG. 4 is a cross-sectional view of the semiconductor laser light source device 110 taken along the line FF.
- FIG. 6 is a diagram showing a configuration of the semiconductor element 4. More specifically, FIG. 6A is a plan view of the semiconductor element 4, FIG. 6B is a GG cross-sectional view of FIG. 6A, and FIG. 6C is FIG. It is HH sectional drawing of (a).
- the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- the semiconductor laser light source device 110 includes a semiconductor element 4, a cooler 2, and a drive substrate 3.
- the semiconductor element 4 is a large-sized semiconductor element in which a plurality of (for example, two) chips 11 are arranged on the heat dissipation block 13.
- the semiconductor element 4 includes a plurality of (for example, two) chips 11, a plurality of (for example, 14) light emitting layers 12, a plurality of (for example, two) heat dissipation blocks 13, a plate 14, terminal pins 15, a CAN 16, and a glass window 17. I have.
- the semiconductor element 4 is disposed on the upper surface of the cooler 2, and the two heat dissipation blocks 13 of each semiconductor element 4 are disposed to face each other.
- Seven light emitting layers 12 are arranged for one chip 11, and in each semiconductor element 4, two heat radiating blocks 13 are arranged in seven light emitting layers 12 arranged in one heat radiating block 13 and in the other heat radiating block 13.
- the seven light emitting layers 12 formed are arranged so as to face each other.
- the arrangement direction of the light emitting layer 12 is parallel to the width direction of the cooler 2.
- the arrangement direction of the two semiconductor elements 4 is perpendicular to the arrangement direction of the light emitting layer 12. For this reason, the flow path of the fin 7 is parallel to the longitudinal direction of the cooler 2, that is, the arrangement direction of the two semiconductor elements 4.
- the chip 11 of the semiconductor element 4 has a plurality of light emitting layers 12, it is larger than the semiconductor laser 1 in the first embodiment. Similarly, the heat dissipation block 13 and the plate 14 for cooling the chip 11 are also large.
- the cooler 2 is disposed so as to be in contact with the semiconductor element 4 immediately below the heat dissipation block 13.
- the terminal pin 15 is disposed outside the heat dissipation block 13.
- the two heat dissipation blocks 13 can be arranged close to each other.
- the cooler 2 can be disposed directly below the heat dissipation block 13 in the state of being in contact with the semiconductor element 4 as in the case of the first embodiment. become able to.
- the thermal resistance between the heat dissipation block 13 and the cooler 2 can be reduced, the semiconductor element 4 can be efficiently cooled.
- the semiconductor laser light source device 110 includes the semiconductor element 4 on which the chip 11 having the plurality of light emitting layers 12 is arranged, so that the number of terminal pins 15 is reduced as compared with the semiconductor laser 1 in the first embodiment. Since it can be reduced, a relatively large heat radiation area can be taken. Thereby, the semiconductor element 4 can be efficiently cooled.
- FIG. 7 is a diagram illustrating another configuration outline of the semiconductor laser light source device according to the second embodiment. More specifically, FIG. 7A is a plan view of the semiconductor laser light source device 120, FIG. 7B is a cross-sectional view taken along the line II in FIG. 7A, and FIG. FIG. 8 is a cross-sectional view taken along line JJ of FIG.
- the arrangement direction of the two semiconductor elements 4 is perpendicular to the arrangement direction of the light emitting layer 12.
- FIG. 1A, 7B, and 7C the arrangement direction of the two semiconductor elements 4 is parallel to the arrangement direction of the light emitting layer 12. That is, the semiconductor element 4 is arranged such that the arrangement direction of the seven light emitting layers 12 is parallel to the longitudinal direction of the cooler 2. For this reason, the flow path of the fin 7 is formed in parallel with the width direction of the cooler 2, and since the flow path does not pass through the plurality of semiconductor elements 4, the temperature of the plurality of semiconductor elements 4 can be individually controlled. It is done.
- FIG. 8 is a diagram showing an outline of the configuration of the semiconductor laser light source system 201.
- the semiconductor laser light source system 201 is configured by arranging a plurality (for example, three) of semiconductor laser light source devices 110 in the horizontal direction. 8 shows a configuration in which the semiconductor laser light source device 110 is individually provided with the cooler 2, the semiconductor element 4 of the three semiconductor laser light source devices 110 is arranged in one cooler 2. May be.
- the semiconductor laser light source system 201 may be configured by arranging a plurality of semiconductor laser light source devices 120 in the horizontal direction instead of the plurality of semiconductor laser light source devices 110.
- the video display device 300 shown in FIG. 1 includes the three semiconductor laser light source devices 100, but may include three semiconductor laser light source systems 201 instead.
- the semiconductor laser is the semiconductor element 4 in which the plurality of chips 11 are arranged in the heat dissipation block 13.
- the semiconductor element 4 is disposed immediately below. Therefore, since the number of terminal pins 15 is reduced as compared with the case of the first embodiment, the contact area between the cooler 2 and the semiconductor element 4 is increased, and the semiconductor element 4 can be cooled more efficiently.
- the semiconductor laser light source devices 110 and 120 can be downsized.
- the semiconductor laser light source system 201 includes a plurality of semiconductor laser light source devices 110 or semiconductor laser light source devices 120, it is possible to achieve higher output than the semiconductor laser light source device 110 or the semiconductor laser light source device 120 alone.
- FIG. 9 is a diagram showing a schematic configuration of the semiconductor laser light source apparatus 130 according to the third embodiment. More specifically, FIG. 9A is a plan view of the semiconductor laser light source device 130, FIG. 9B is a cross-sectional view taken along the line KK of FIG. 9A, and FIG. 2 is a side view of the semiconductor laser light source device 130.
- FIG. 9A is a plan view of the semiconductor laser light source device 130
- FIG. 9B is a cross-sectional view taken along the line KK of FIG. 9A
- FIG. 2 is a side view of the semiconductor laser light source device 130.
- FIG. In the third embodiment the same components as those described in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.
- the drive substrate 3 is disposed so as to be in contact with the lower surface of the cooler 2 (the surface opposite to the surface on the cooler 2 where the semiconductor laser 1 is disposed). 3, the cooler 2 and the drive substrate 3 are disposed so as to be in contact with the surface opposite to the emission surface of the semiconductor laser 1.
- the semiconductor lasers 1 are arranged in two rows so that the heat radiation blocks 13 face each other.
- the cooler 2 is formed in a convex shape in which the central portion in the width direction has a height higher than the end portion, and the upper surface of the central portion in the width direction is disposed so as to contact the inner portion of the lower surface of the plate 14 of the semiconductor laser 1.
- the drive substrate 3 is divided into two parts and arranged so as to be in contact with the outer part of the lower surface of the plate 14.
- the drive substrate 3 is disposed above both ends in the width direction of the cooler 2 and is not in contact with the cooler 2.
- the terminal pins 15 are arranged so as to protrude downward from the pair of drive substrates 3. That is, the terminal pins 15 are disposed at both ends in the width direction of the semiconductor laser light source device 130, and the cooler 2 is disposed between the terminal pins 15 disposed at both ends in the width direction of the semiconductor laser light source device 130. .
- the cooler 2 in the third embodiment does not include the cavity 2a and the through hole 2b, and a plurality of fins 7 are arranged on the lower surface of the cooler 2.
- a fan 8 is arranged on the back surface of the fin 7.
- FIG. 10B is an LL sectional view of FIG. 10A
- FIG. 2 is a side view of a semiconductor laser light source device 140.
- FIG. 10A is a plan view of the semiconductor laser light source device 140
- FIG. 10B is an LL sectional view of FIG. 10A
- FIG. 2 is a side view of a semiconductor laser light source device 140.
- the semiconductor lasers 1 are arranged in two rows so that the chips 11 having the light emitting layer 12 face each other.
- the terminal pin 15 is disposed at the center in the width direction of the semiconductor laser light source device 130.
- the drive substrate 3 is disposed in the center portion in the width direction of the semiconductor laser light source device 130, and the upper surface of both end portions in the width direction of the drive substrate 3 is disposed in contact with the inner portion of the lower surface of the plate 14 of the semiconductor laser 1.
- the cooler 2 is formed in a concave shape in which the central portion in the width direction is at a lower height than the end portion, and the upper surface of both end portions in the width direction is disposed so as to contact the outer portion of the lower surface of the plate 14 of the semiconductor laser 1. ing.
- FIG. 11 is a diagram illustrating another configuration outline of the semiconductor laser light source device according to the third embodiment. More specifically, FIG. 11A is a plan view of the semiconductor laser light source device 150, FIG. 11B is an MM cross-sectional view of FIG. 11A, and FIG. It is NN sectional drawing of Fig.11 (a).
- the semiconductor laser light source device 150 includes the semiconductor element 4 in which the terminal pins 15 are arranged outside the heat dissipation block 13, and is cooled between the terminal pins 15.
- the device 2 is arranged. That is, this is an example in which the semiconductor element 4 is arranged in place of the semiconductor laser 1 in the semiconductor laser light source device 130 shown in FIGS. 9A, 9B, and 9C.
- the cooler 2 is formed in a convex shape in which the central portion in the width direction is higher than the end portion, and the upper surface of the central portion in the width direction is the center of the lower surface of the plate 14 of the semiconductor element 4. It is arranged to touch the part.
- the drive substrate 3 is divided into two parts and arranged so as to be in contact with both end portions of the lower surface of the plate 14. The drive substrate 3 is disposed above both ends in the width direction of the cooler 2 and is not in contact with the cooler 2.
- FIG. 12 is a diagram illustrating another configuration outline of the semiconductor laser light source device according to the third embodiment. More specifically, FIG. 12 (a) is a plan view of the semiconductor laser light source device 160, FIG. 12 (b) is an OO sectional view of FIG. 12 (a), and FIG. It is PP sectional drawing of Fig.12 (a).
- the semiconductor laser light source device 160 includes the semiconductor element 4 in which the terminal pins 15 are arranged on one outer side of the heat dissipation block 13, and directly below the heat dissipation block 13. In this configuration, the cooler 2 is disposed, and the drive substrate 3 is disposed outside the terminal pins 15.
- the cooler 2 is formed in a shape in which the central portion in the width direction and one end are at a height position higher than the other end, and the upper surface of the central portion in the width direction and one end is It arrange
- the drive substrate 3 is disposed so as to be in contact with the other end of the lower surface of the plate 14.
- the drive substrate 3 is disposed above the other end in the width direction of the cooler 2 and is not in contact with the cooler 2.
- the cooler 2 and the drive substrate 3 are surfaces opposite to the emission surface of the semiconductor laser 1 or the semiconductor element 4, respectively. It is arranged to touch. Accordingly, since the semiconductor laser 1 or the semiconductor element 4 and the cooler 2 are brought into direct contact with each other, the thermal resistance between the semiconductor laser 1 or the semiconductor element 4 and the cooler 2 can be reduced, and the semiconductor laser 1 or the semiconductor element 4 is made efficient. Can cool well.
- Embodiment 3 since the height position of the fin 7 of the cooler 2 can be increased, the heat radiation area can be increased, and the performance of the cooler 2 can be improved. Further, since the fins 7 are arranged outside the cooler 2, a forced air-cooled cooler in which the fans 8 are arranged on the back surface of the fins 7 can be configured. Although the forced air cooling cooler 2 using the fan 8 is shown in the third embodiment, a liquid cooling device can be arranged instead of the forced air cooling as in the first and second embodiments. It is.
- the semiconductor laser light source device according to the third embodiment can be employed in the semiconductor laser light source system and the video display device.
Abstract
Description
本発明の実施の形態1について、図面を用いて以下に説明する。実施の形態1に係る半導体レーザ光源装置100、半導体レーザ光源システム200および映像表示装置300について詳細に説明するが、最初に映像表示装置300について説明する。図1は、実施の形態1に係る映像表示装置300の構成図である。
次に、実施の形態2に係る半導体レーザ光源装置110について説明する。図5は、実施の形態2に係る半導体レーザ光源装置110の構成概要を示す図である。より具体的には、図5(a)は、半導体レーザ光源装置110の平面図であり、図5(b)は、図5(a)のE-E断面図であり、図5(c)は、半導体レーザ光源装置110のF-F断面図である。図6は、半導体素子4の構成を示す図である。より具体的には、図6(a)は、半導体素子4の平面図であり、図6(b)は、図6(a)のG-G断面図であり、図6(c)は、図6(a)のH-H断面図である。なお、実施の形態2において、実施の形態1で説明したものと同一の構成要素については同一符号を付して説明は省略する。
次に、実施の形態3に係る半導体レーザ光源装置130について説明する。図9は、実施の形態3に係る半導体レーザ光源装置130の構成概要を示す図である。より具体的には、図9(a)は、半導体レーザ光源装置130の平面図であり、図9(b)は、図9(a)のK-K線断面図であり、図9(c)は、半導体レーザ光源装置130の側面図である。なお、実施の形態3において、実施の形態1,2で説明したものと同一の構成要素については同一符号を付して説明は省略する。
Claims (9)
- 半導体レーザ(1)と、
半導体レーザ(1)を冷却する冷却器(2)と、
前記半導体レーザ(1)を駆動する駆動基板(3)と、
を備え、
前記冷却器(2)は、前記半導体レーザ(1)の出射面とは反対側の面と接するように配置され、
前記駆動基板(3)は、前記冷却器(2)における前記半導体レーザ(1)が配置される側の面とは反対側の面と接するように配置される、半導体レーザ光源装置。 - 前記半導体レーザ(1)は、放熱ブロック(13)に複数のチップ(11)を配置した半導体素子(4)であり、
前記冷却器(2)は、前記放熱ブロック(13)の直下に前記半導体素子(4)と接するように配置される、請求項1記載の半導体レーザ光源装置。 - 半導体レーザ(1)と、
半導体レーザ(1)を冷却する冷却器(2)と、
前記半導体レーザ(1)を駆動する駆動基板(3)と、
を備え、
前記冷却器(2)および前記駆動基板(3)はそれぞれ、前記半導体レーザ(1)の出射面とは反対側の面と接するように配置される、半導体レーザ光源装置。 - 請求項1記載の半導体レーザ光源装置(100,110,120)を複数備える、半導体レーザ光源システム。
- 請求項3記載の半導体レーザ光源装置(130,140,150,160)を複数備える、半導体レーザ光源システム。
- 請求項1記載の半導体レーザ光源装置(100,110,120)を備える、映像表示装置。
- 請求項3記載の半導体レーザ光源装置(130,140,150,160)を備える、映像表示装置。
- 請求項4記載の半導体レーザ光源システム(200,201)を備える、映像表示装置。
- 請求項5記載の半導体レーザ光源システムを備える、映像表示装置。
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US15/527,219 US9899795B2 (en) | 2015-02-16 | 2015-11-27 | Semiconductor laser light source device, semiconductor laser light source system, and image display apparatus |
JP2017500289A JP6246414B2 (ja) | 2015-02-16 | 2015-11-27 | 半導体レーザ光源装置、半導体レーザ光源システムおよび映像表示装置 |
CA2979520A CA2979520C (en) | 2015-02-16 | 2015-11-27 | Semiconductor laser light source device, semiconductor laser light source system, and image display aparatus |
CN201580073348.6A CN107210582B (zh) | 2015-02-16 | 2015-11-27 | 半导体激光光源装置、半导体激光光源系统及影像显示装置 |
EP15882723.8A EP3261197B1 (en) | 2015-02-16 | 2015-11-27 | Semiconductor laser light source device, semiconductor laser light source system, and image display device |
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EP (1) | EP3261197B1 (ja) |
JP (1) | JP6246414B2 (ja) |
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JP2019153762A (ja) * | 2018-03-06 | 2019-09-12 | シャープ株式会社 | 半導体発光装置 |
JP2020126987A (ja) * | 2019-02-06 | 2020-08-20 | ウシオ電機株式会社 | 半導体レーザ光源装置 |
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DE112017007585B4 (de) * | 2017-05-24 | 2022-09-08 | Mitsubishi Electric Corporation | Halbleiterbaugruppe |
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JP6246414B2 (ja) | 2017-12-13 |
CA2979520C (en) | 2020-12-01 |
EP3261197A4 (en) | 2018-11-21 |
JPWO2016132622A1 (ja) | 2017-06-08 |
EP3261197B1 (en) | 2021-06-30 |
EP3261197A1 (en) | 2017-12-27 |
CN107210582B (zh) | 2020-04-03 |
US9899795B2 (en) | 2018-02-20 |
CN107210582A (zh) | 2017-09-26 |
CA2979520A1 (en) | 2016-08-25 |
US20170353003A1 (en) | 2017-12-07 |
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