WO2013073099A1 - Equipement électronique - Google Patents

Equipement électronique Download PDF

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Publication number
WO2013073099A1
WO2013073099A1 PCT/JP2012/006312 JP2012006312W WO2013073099A1 WO 2013073099 A1 WO2013073099 A1 WO 2013073099A1 JP 2012006312 W JP2012006312 W JP 2012006312W WO 2013073099 A1 WO2013073099 A1 WO 2013073099A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating element
housing
outside air
wind direction
image
Prior art date
Application number
PCT/JP2012/006312
Other languages
English (en)
Japanese (ja)
Inventor
和彦 栗山
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2013073099A1 publication Critical patent/WO2013073099A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B35/00—Stereoscopic photography
    • G03B35/08—Stereoscopic photography by simultaneous recording
    • G03B35/10—Stereoscopic photography by simultaneous recording having single camera with stereoscopic-base-defining system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/001—Constructional or mechanical details

Definitions

  • This disclosure relates to an electronic device having a plurality of heating elements.
  • Patent Document 1 discloses a digital camera that causes convection in a housing by a blower fan and diffuses heat generated by an image sensor.
  • the temperature rise in the housing is more likely to occur than when a single heating element is present.
  • This disclosure provides an electronic device that can efficiently cool a heating element even when a plurality of heating elements exist in the casing.
  • an electronic device includes a housing, a plurality of heating elements provided in the housing, an air introduction port that allows outside air outside the housing to be introduced into the housing, and air A blower that introduces and blows outside air into the housing through the introduction port; and a guide that guides the outside air blown by the blower to a plurality of heating elements. They are arranged at symmetrical positions as a reference.
  • the heating element can be efficiently cooled even when there are a plurality of heating elements in the casing.
  • a perspective view of the movie camera as seen from above Perspective view of the movie camera viewed from below A perspective view of the movie camera viewed from below with the lens unit exposed.
  • the figure which shows the ventilation route to the image sensor The figure which shows the ventilation route to the image sensor
  • FIG. 1 is a perspective view of the movie camera as seen from above.
  • the movie camera 100 can acquire a left-eye image and a right-eye image that form a stereoscopic video.
  • the movie camera 100 includes a lens unit 110, a camera body unit 120, a handle unit 130, and a manual ring unit 140.
  • the lens unit 110 includes a lens unit 190 including a plurality of lenses (see FIG. 3).
  • the manual ring unit 140 includes a manual zoom ring, a manual focus ring, and a manual iris ring.
  • the camera body unit 120 includes an image sensor, an image processing engine, a controller, a card slot, an operation unit, a battery, and the like.
  • the image sensor captures a subject image obtained via the optical system of the lens unit 110.
  • the image processing engine processes the output of the image sensor.
  • the controller controls each part of the camera body.
  • the card slot can be loaded with a memory card capable of recording an image file output from the image processing engine.
  • the operation unit operates various functions of the movie camera 100.
  • the battery supplies power to each part of the movie camera 100.
  • the handle portion 130 is a portion that is gripped by the user when photographing, and is disposed on the upper portion of the camera body portion 120.
  • FIG. 2 is a perspective view of the movie camera as viewed from below.
  • FIG. 3 is a perspective view of the movie camera viewed from below with the lens unit exposed.
  • a fan cover 370 and an air inlet 380 are provided on the lower surface of the lens unit 110.
  • a fan 390 is provided inside the manual ring unit 140.
  • the fan cover 370 functions as a support part for supporting the heavy lens part 110. Thereby, when the movie camera 100 is installed on a horizontal table or the like, the movie camera 100 is prevented from tilting forward due to the weight of the lens unit 110.
  • the intake port 380 is a port for introducing outside air (air) outside the housing 1000 into the housing 1000.
  • air air
  • the air inlet 380 is disposed on the lower surface that is difficult to see from the outside. Therefore, the appearance of the exterior is not impaired.
  • rainwater can be prevented from entering the housing 1000 of the movie camera 100 even when used in rainy weather.
  • the fan 390 is a small blower having a plurality of wings. When power is supplied, the fan 390 rotates a plurality of wings and introduces outside air into the casing 1000 of the movie camera 100 through the air inlet 380 to blow air. The fan 390 introduces outside air into the casing 1000 of the movie camera 100 and blows air, whereby the image sensor, the image processing engine, and the like that are heat generators can be cooled.
  • the lens unit 190 includes a lens R220 and a lens L230.
  • the lens R220 includes an optical system for forming a subject image for the right eye. This optical system includes a focus lens, a zoom lens, and the like.
  • the lens L230 includes an optical system for forming a subject image for the left eye. This optical system includes a focus lens, a zoom lens, and the like.
  • the lens unit 190 is disposed as close as possible to the camera body 120 side. As a result, the entire movie camera 100 can be reduced in size.
  • FIG. 4 is a diagram showing a ventilation path to the image sensor.
  • FIG. 4A is a vertical cross-sectional view along the front-rear direction of the movie camera.
  • FIG. 4B is a cross-sectional view taken along line R in FIG.
  • FIG. 5 is a diagram illustrating a ventilation path to the image sensor.
  • FIG. 5 is a cross-sectional view taken along line R in FIG.
  • FIG. 6 is a diagram for explaining the flow of outside air (air blowing path) in the movie camera housing.
  • FIG. 6 is a horizontal sectional view of the movie camera 100 along the front-rear walk.
  • each image sensor is responsible for one of the three primary colors RGB.
  • Three image sensors of an image sensor 1L420, an image sensor 2L430, and an image sensor 3L440 are disposed behind the lens L230 and inside the manual ring 140.
  • Each image sensor is responsible for either RGB. That is, the movie camera 100 captures images with a total of six left and right image sensors 1L to 3L 420 to 440 and image sensors 1R to 3R 450 to 470.
  • the six image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470 are operated, so that a considerable amount of heat is generated. Therefore, it is necessary to protect the electronic component from the temperature rise in the housing 1000 due to the heat generation. Therefore, it is necessary to introduce the outside air into the housing 1000 by the fan 390 and cool the electronic component.
  • the fan 390 is disposed inside the manual ring unit 140. This position is a position where the six image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470 arranged inside the manual ring can be blown at the shortest distance.
  • the fan 390 rotates in accordance with an instruction from a controller (not shown) arranged on the printed circuit board in the camera body 120.
  • the controller may always instruct the fan 390 to rotate when the movie camera 100 is turned on, or to the fan 390 when the temperature of a predetermined part in the housing 100 exceeds a predetermined temperature.
  • the rotation operation may be instructed.
  • the fan 390 receives a rotation operation instruction from the controller, the fan 390 starts the rotation operation. Thereby, outside air is introduced into the housing 1000 via the air inlet 380.
  • the outside air introduced into the housing 1000 of the movie camera 100 enters the duct hole 410.
  • the duct hole 410 extends in the vertical direction within the housing 1000 of the movie camera 100 and guides the introduced outside air.
  • the left-eye image sensors 1L to 3L420 to 440 and the right-eye image sensors 1R to 3R450 to 470 are positioned symmetrically with respect to the duct hole 410, specifically, at positions facing each other across the duct hole 410. Is arranged.
  • the duct hole 410 has a wind direction plate T480, a wind direction plate L490, and a wind direction plate R500.
  • the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are the outside air blown by the fan 390 (the outside air introduced through the intake port 380), and the amount of heat generated by the image sensors 1L420, 2L430, and 3L440 for the left eye image and the right eye.
  • the image sensors 1R450, 2R460, and 3R470 for image are formed so as to be distributed to these image sensors according to the amount of heat generated.
  • the heat generation amount of the image sensors 1L420, 2L430, and 3L440 for the left eye image and the heat generation amount of the image sensors 1R450, 2R460, and 3R470 for the right eye image are substantially the same. Therefore, the wind direction plate T480, the wind direction plate L490, and the wind direction plate are distributed so that substantially the same amount of outside air is distributed to the image sensors 1L420, 2L430, and 3L440 for the left eye image and the image sensors 1R450, 2R460, and 3R470 for the right eye image.
  • R500 is formed.
  • the wind direction plate T480 is located in the upper part of the duct hole 410 and has a substantially T shape.
  • the wind direction plate L490 is disposed on the image sensor 1L420, 2L430, 3L440 side in the vicinity of the center of the duct hole 410 in the vertical direction (vertical direction), and has an inverted L shape.
  • the wind direction plate R500 is disposed on the image sensor 1R450, 2R460, 3R470 side in the vicinity of the center in the vertical direction (vertical direction) of the duct hole 410, and is reverse L-shaped that is horizontally reversed from the wind direction plate L490. have.
  • the outside air introduced through the air inlet 390 and blown by the fan 390 rises in the duct hole 410, and a part of the air collides with the wind direction plate L 490 and the wind direction plate R 500. To do. Part of the outside air that has collided with the wind direction plate L490 is guided in the direction of the image sensors 1L420, 2L430, and 3L440 along the reverse L-shaped wind direction plate L490. Thereby, the image sensors 1L420, 2L430, and 3L440 are cooled.
  • outside air that has not collided with the wind direction plate L490 and the wind direction plate R500 further rises and collides with the wind direction plate T480.
  • the outside air that has collided with the wind direction plate T480 is distributed and guided to the left and right along the substantially T-shaped wind direction plate T480. That is, outside air that has not collided with the wind direction plate L490 and the wind direction plate R500 is guided in the direction of the image sensors 1L420, 2L430, and 3L440 and the direction of the image sensors 1R450, 2R460, and 3R470. Thereby, the image sensors 1L420, 2L430, 3L440 and the image sensors 1R450, 2R460, 3R470 are cooled.
  • the movie camera 100 has a total of six left and right image sensors 1L to 3L 420 to 440 and image sensors 1R to 3R 450 to 470. As shown in FIG. 4B and FIG. 5, the image sensor 1L420 and the image sensor 1R450 are located at the uppermost position in the vertical direction. Image sensor 2L430 and image sensor 2R460 are located approximately in the center in the up-down direction. The image sensor 3L440 and the image sensor 3R470 are located at the lowest position in the vertical direction.
  • a wind direction plate T480, a wind direction plate L490, and a wind direction plate R500 are provided in the duct hole 410 so that substantially the same amount of outside air can be supplied to each of the six image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470.
  • the wind direction plate T480 is formed so as to mainly blow air to the image sensor 1L420 and the image sensor 1R450, and the image sensor 2L430 and the image sensor 2R460.
  • the wind direction plate L490 is formed so as to mainly blow air to the image sensor 2L430 and the image sensor 3L440.
  • the wind direction plate R500 is formed so as to mainly blow air to the image sensor 2R460 and the image sensor 3R450.
  • a large volume is occupied by the lens unit 190 inside the lens unit 110.
  • the manual ring part 140 and the camera body part 120 are partially occupied by an electronic board or the like, there are also hollow parts. Therefore, after the six image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470 are cooled by the fan 390, the outside air flows through the manual ring unit 140 and the camera body unit 120 as indicated by arrows in FIG. Pass through the cavity. Then, the air is exhausted out of the housing 1000 through a gap 540 between the jack cover 520 and the housing 1000 arranged at the rear of the movie camera 100, the button hole 530 of the operation button, and the like. Thereby, the hot air in the housing 1000 of the movie camera 100 can be released to the outside. Therefore, it is possible to avoid the temperature in the housing 1000 of the movie camera 100 from excessively rising.
  • the movie camera 100 is A housing 1000; Image sensors 1L to 3L420 to 440 (one of the first heating element and the second heating element) provided in the housing 1000; Image sensors 1R to 3R450 to 470 (the other of the first heating element and the second heating element) provided in the housing 1000; An inlet 380 (air inlet) that allows outside air outside the casing 1000 to be introduced into the casing 1000; A fan 390 (air blowing unit) for introducing outside air into the housing 1000 through the air inlet 380 and blowing air; A duct hole 410 (guidance part) for guiding the outside air blown by the fan 390 to the image sensors 1L to 3L420 to 440 and the image sensors 1R to 3R450 to 470, The image sensors 1L to 3L420 to 440 and the image sensors 1R to 3R450 to 470 are arranged at positions facing each other across the duct hole 410 (at positions symmetrical with respect to the reference).
  • the duct hole 410 includes wind direction plates T, L, R480, 490, and 500 that distribute outside air blown by the fan 390 to the image sensors 1L to 3L420 to 440 and the image sensors 1R to 3R450 to 470.
  • the outside air blown by the fan 390 can be efficiently distributed to the image sensors 1L to 3L420 to 440 and the image sensors 1R to 3R450 to 470.
  • the wind direction plates T, L, R480, 490, and 500 are used to change the outside air blown by the fan 390 according to the heat generation amount of the image sensors 1L to 3L420 to 440 and the heat generation amount of the image sensors 1R to 3R450 to 470. To 3L420 to 440 and the image sensors 1R to 3R450 to 470.
  • the image sensors 1L to 3L420 to 440 and the image sensors 1R to 3R450 to 470 can be cooled in a balanced manner.
  • the outside air introduced into the housing 1000 through the air inlet 380 cools the image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470, and then forms a button hole 530 and a gap 540 formed in the housing 1000. It is discharged out of the housing 1000 via the (air discharge port).
  • the outside air whose temperature has risen by cooling the image sensors 1L to 3L420 to 440 and the image sensors 1R to 3R450 to 470 passes through the button holes 530 and the gaps 540 (air discharge ports) formed in the housing 1000. Can be effectively discharged out of the housing 1000.
  • An image processing engine 510 (third heating element) is provided on a path from the air inlet 380 to the button hole 530 and the gap 540 in the housing 1000.
  • the image processing engine 510 can also be cooled.
  • the first heating elements 420 to 440 are first image sensors 1L to 3L 420 to 440 that capture images of a first viewpoint constituting a 3D video
  • the second heating elements 450 to 470 are the second image sensors 1L to 3R 450 to 470 that capture images of the second viewpoint constituting the 3D video.
  • the third heating element 510 performs image processing on the first viewpoint image acquired by the first image sensors 1L to 3L420 to 440 and the second viewpoint image acquired by the second image sensors 1R to 3R450 to 470.
  • the image processing engine 510 generates a relatively large amount of heat, which can be effectively cooled.
  • FIG. 7 is a diagram illustrating a ventilation path to the image sensor in the second embodiment.
  • FIG. 7A is a diagram illustrating a ventilation path to the image sensor in the first embodiment.
  • FIG. 7B is a diagram illustrating a ventilation path to the image sensor according to the second embodiment.
  • the wind direction plate is used so that the amount of outside air distributed to the left and right image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470 is substantially the same.
  • T480, wind direction plate L490, and wind direction plate R500 were formed. Specifically, the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are formed symmetrically.
  • the wind direction plate T480 so that the amount of outside air distributed to the left and right image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470 is different.
  • the wind direction plate L490 and the wind direction plate R500 are formed. Specifically, the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are formed asymmetrically left and right. The reason for this configuration will be described below.
  • the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are formed so as to be asymmetric in the left-right direction, the amount of air blown to the left and right can be varied.
  • the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are formed asymmetrically so as to increase the air volume in the direction where the image processing engine 510 exists.
  • the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are configured to calculate the amount of heat generated by adding the heat generation amount of the image sensors 1R to 3R450 to 470 and the heat generation amount of the image processing engine 510 to the outside air blown by the fan 390.
  • It is configured to be distributed to the image sensors 1R to 3R 450 to 470, the image processing engine 510, and the image sensors 1L to 3L 420 to 440 according to the heat generation amount of the sensors 1L to 3L 420 to 440.
  • the image processing engine 510 can be cooled well.
  • the movie camera 100 of the present embodiment is On the path from the image sensors 1R to 3R 450 to 470 to the gap 540 (air outlet) in the housing 1000, the image sensors 1L to 3L 420 to 440 and the image sensors 1R to 3R 450 to 470 are separate heating elements.
  • the duct hole 410 includes a wind direction plate T480, a wind direction plate L490, and a wind direction plate R500 that distribute outside air blown by the fan 390 to the image sensors 1R to 3R450 to 470 and the image processing engine 510 and the image sensors 1L to 3L420 to 440.
  • the wind direction plate T480, the wind direction plate L490, and the wind direction plate R500 are the image sensor 1L and the heat generation amount obtained by adding the heat generation amount of the image sensors 1R to 3R450 to 470 and the heat generation amount of the image processing engine 510 to the outside air blown by the fan 390.
  • the image sensors 1R to 3R 450 to 470 and the image processing engine 510 and the image sensors 1L to 3L 420 to 440 are distributed according to the heat generation amount of 3L 420 to 440.
  • the amount of outside air to be guided to the image sensors 1R to 3R 450 to 470 and the image processing engine 510 and the image sensors 1L to 3L 420 to 440 is the amount of heat generated by the image sensors 1R to 3R 450 to 470 and the heat generation of the image processing engine 510.
  • the amount of heat generated is the amount corresponding to the amount of heat generated and the amount of heat generated by the image sensors 1L to 3L 420 to 440.
  • FIG. 8 is a diagram illustrating a ventilation path to an image sensor or the like according to the third embodiment.
  • the present disclosure can also be applied to the case where only the left side of the left and right sides is the image sensors 1L to 3L 420 to 440 and the right side is the CPU 600.
  • the present disclosure can be applied to a 2D movie camera.
  • Embodiments 1 to 3 have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to an embodiment in which changes, replacements, additions, omissions, and the like are appropriately performed.
  • the present disclosure includes a casing, a first heating element provided in the casing, a second heating element provided in the casing, and an air inlet that allows outside air outside the casing to be introduced into the casing.
  • the present invention can be widely applied to electronic devices having an air blowing section that introduces outside air into the housing through the air inlet and blows air.
  • the present invention can be applied to various electronic devices such as a digital still camera, a mobile phone, a smartphone, an electronic notebook, and a computer.
  • the heating element is an image sensor, an image processing engine, or a CPU has been described.
  • the present invention is not limited to this.
  • the heating element may be various heating elements such as a memory provided in the electronic device, various controllers, an electronic device such as an SSD, a hard disk, and the like.
  • the present disclosure is widely applicable to electronic devices having a first heating element and a second heating element.
  • the present invention can be applied to various electronic devices such as a digital still camera, a mobile phone, a smartphone, an electronic notebook, and a computer.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Studio Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

L'invention concerne une caméra de cinéma (100) qui comprend : un corps (1000) ; des capteurs d'image (1L-3L ; 420-440) placés à l'intérieur du corps (1000) ; des capteurs d'image (1R-3R ; 450-470) placés à l'intérieur du corps (1000) ; un orifice d'admission d'air (380) permettant d'introduire de l'air extérieur provenant de l'extérieur du corps (1000) à l'intérieur du corps (1000) ; un ventilateur (390) pour assurer une ventilation par introduction d'air extérieur à l'intérieur du corps (1000) par l'orifice d'admission d'air (380) ; et un trou de canalisation (410) pour guider l'air extérieur soufflé par le ventilateur (390) vers les capteurs d'image (1L-3L ; 420-440) et les capteurs d'images (1R-3R ; 450-470). Les capteurs d'images (1L-3L ; 420-440) et les capteurs d'images (1R-3R ; 450-470) sont positionnés selon un agencement symétrique avec le trou de canalisation (410) à titre de référence entre eux.
PCT/JP2012/006312 2011-11-18 2012-10-02 Equipement électronique WO2013073099A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-252556 2011-11-18
JP2011252556A JP2015026876A (ja) 2011-11-18 2011-11-18 電子機器

Publications (1)

Publication Number Publication Date
WO2013073099A1 true WO2013073099A1 (fr) 2013-05-23

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WO (1) WO2013073099A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7091061B2 (ja) * 2017-12-05 2022-06-27 キヤノン株式会社 撮像装置
US11314154B2 (en) * 2020-04-10 2022-04-26 Grass Valley Canada Ducted cooling system of a camera

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10200281A (ja) * 1997-01-14 1998-07-31 Kenwood Corp 強制空冷放熱器
WO2006098020A1 (fr) * 2005-03-16 2006-09-21 Fujitsu Limited Appareil de refroidissement et appareil electronique
JP2006270264A (ja) * 2005-03-22 2006-10-05 Fuji Photo Film Co Ltd 複眼撮影装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10200281A (ja) * 1997-01-14 1998-07-31 Kenwood Corp 強制空冷放熱器
WO2006098020A1 (fr) * 2005-03-16 2006-09-21 Fujitsu Limited Appareil de refroidissement et appareil electronique
JP2006270264A (ja) * 2005-03-22 2006-10-05 Fuji Photo Film Co Ltd 複眼撮影装置

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