baber/WOPTO huggingface dataset:
Patent JP-2023120722-A (JP)
Title: Backflow prevention fitting
Inventor: MIZUNO HIROTOSHI
IPC: E03F3/04
Filed: 2022-02-18
Abstract: To provide a backflow prevention fitting capable of being installed in the middle or end of drainage pipes in a home, and the like, and capable of efficiently preventing backflow in multiple drainage pipes in the home and the like by installing the minimum number of units required, and furthermore, capable of easily performing maintenance inside the joint even in narrow spaces.MEANS FOR SOLVING THE PROBLEM: The backflow prevention fitting includes: a cylindrical fitting body that has an inlet, an outlet, a channel portion connecting the inlet and the outlet, and an inspection port located between the inlet and the outlet and facing the flow path; a lid that can be removably attached to the inspection port; and a valve seat formed on the inner peripheral surface of the fitting body. In the backflow prevention fitting, the valve body is rotatably placed in contact with the upper part of the valve seat, and the central axis of the outlet is arranged at an angle to the central axis of the inlet.SELECTED DRAWING: Figure 1
Patent JP-2023122494-A (JP)
Title: game machine
Inventor: TANAKA MASAYA
IPC: A63F7/02
Filed: 2022-02-22
Abstract: To increase the interest of a game.SOLUTION: A game machine includes movable means that can be operated according to a performance. The display mode of a specific image includes a first display mode and a second display mode. Game control means includes program storage means for storing a program, arithmetic processing means for performing a predetermined arithmetic process by the program, multiple registers in which values are stored when the arithmetic processing means performs the arithmetic process, and update information storage means capable of storing information updated by the arithmetic processing means. Performance control means can execute a predetermined performance related to display of a specific image in a game that can generate a game state advantageous to a player, hide other specific images, and operate the movable means when the second display mode of one specific image is displayed, according to the predetermined performance.SELECTED DRAWING: Figure 145
Patent JP-2023125237-A (JP)
Title: Partial discharge detection device and partial discharge detection method
Inventor: NUKAGA ATSUSHI
IPC: G01R31/12
Filed: 2022-02-28
Abstract: To provide a partial discharge detection device and a partial discharge detection method which can separate internal partial discharge from external noise under such a situation that the external noise and the internal partial discharge exist in a mixed manner and surely detect the internal partial discharge.SOLUTION: A partial discharge detection device comprises: a transient ground voltage sensor 12 which is provided in a high voltage device and measures the transient ground voltage; partial discharge detection signal selection means 13, 15 which selects a partial discharge detection signal about internal partial discharge in the detection signal output from the transient ground voltage sensor; partial discharge generation detection means 18 which detects a partial discharge generation signal indicating the generation of the internal partial discharge from the selected partial discharge detection signal; partial discharge generation signal holding means 19, 20 which holds the detected partial discharge generation signal; and sampling means 23 which samples the partial discharge generation signal held by the partial discharge generation signal holding means every time a prescribed sampling period comes.SELECTED DRAWING: Figure 1
Patent JP-2023131279-A (JP)
Title: Petroleum burner
Inventor: MORITA MAKOTO
IPC: F23N1/00
Filed: 2022-03-09
Abstract: To provide a petroleum burner that corrects a fuel flow rate to a suitable one at a low cost.SOLUTION: The petroleum burner comprises a burner unit 17, an electromagnetic pump 12 supplying fuel oil, room-temperature detection means 23, and a controller 19. The controller 19 determines a correction value according to a detection value detected by the room-temperature detection means 23 when a combustion operation is started and corrects a flow rate of oil supplied by the electromagnetic pump 12 according to the correction value. The controller 19 revises the correction value according to the progress of the combustion operation subsequent to the start of the combustion operation, and hence determines a correction value for correcting the flow rate of oil supplied by the electromagnetic pump 12 according to the detection value detected by the room-temperature detection means 23 since the ambient temperature of the electromagnetic pump 12 at a time when the combustion operation is started is equal to the room temperature, so as to adjust the flow rate of the electromagnetic pump 12 to a preset one at a low cost without increasing the number of components.SELECTED DRAWING: Figure 3
Patent JP-2023131883-A (JP)
Title: Method for position marking and position marking system
Inventor: KANESAKA TAKAMASA
IPC: G01C15/02
Filed: 2022-03-10
Abstract: To provide a method for position marking and a position marking system which specify a position easily and with an inexpensive structure and perform marking.SOLUTION: The present invention includes: a camera arrangement step of arranging a camera to determine what degree angle the position of a position marking body described later is located from the direction of the optical axis of the camera specified in a drawing in a plurality of positions of a flat surface forming a structure specified by a scalable drawing; and a marking step of moving a position marking body which can be marked on the flat surface, specifying a place to be a marking position in the map by the arranged camera, and marking the place. Marking is performed on a predetermined position of the structure.SELECTED DRAWING: Figure 1
Patent JP-2023135117-A (JP)
Title: Tape transfer device for wafer
Inventor: ISHIKAWA KAZUMASA
IPC: H01L21/683
Filed: 2022-03-15
Abstract: To provide a tape transfer device for a wafer that transfers a tape without leaving a scratch streak on a die attach film and a dicing film and deforming the films.SOLUTION: A tape transfer device for a wafer, comprising a dicing film 13 and a cover film 15 for securing a wafer on a mount frame 12, comprises a roller for supplying or guiding a wafer tape T formed by pasting the dicing film 13 on a sticking surface 15A from a tape supply part 25 toward a wafer pasting position 26, the sticking surface being one surface of the cover film 15. The roller is configured to avoid contact with the wafer tape T in a passage region through which the dicing film 13 passes.SELECTED DRAWING: Figure 3
Patent JP-2023136994-A (JP)
Title: Topical preparation for promoting growth of nail stem cell and hair
Inventor: HATTORI FUMIYUKI
IPC: A61K45/00
Filed: 2022-03-17
Abstract: To provide a novel topical skin preparation that can promote the growth of nails and hair and offers cost advantages over the current products.SOLUTION: A topical skin preparation includes a Wnt signaling pathway agonist.SELECTED DRAWING: None
Patent JP-2023142043-A (JP)
Title: Electrode material and electrode material manufacturing method
Inventor: KONDO TATSUYA
IPC: H01M4/58
Filed: 2022-03-24
Abstract: To provide an electrode material with excellent output characteristics while suppressing changes in crystal structure due to moisture, and a simple method for manufacturing the electrode material.SOLUTION: An electrode material includes lithium vanadium phosphate bonded to a conductive carbon material, the lithium vanadium phosphate is a mixture with titanium or a titanium compound such as titanium (IV) oxide. The lithium vanadium phosphate forms a mixture in which particles of a titanium compound such as titanium or titanium (IV) oxide are mixed inside and on the surface of a crystal whose base material is lithium vanadium phosphate. This electrode material is manufactured through a crystallization step that combines a conductive carbon material and the lithium vanadium phosphate. The crystallization step includes an addition step of adding titanium (IV) oxide, a mixing step of mixing water as a solvent, and a drying step of spray drying.SELECTED DRAWING: Figure 1
Patent JP-2022159063-A (JP)
Title: Method for inspecting surface deformation of structure, system for inspecting surface deformation of structure, and structure protection sheet
Inventor: TANI SATORU
IPC: C04B41/71
Filed: 2022-03-24
Abstract: To provide a method for inspecting surface deformation of a structure which makes it possible to easily measure the quantity of surface deformation of a structure protection sheet that is bonded to the surface of a structure built with concrete or the like.SOLUTION: The method for inspecting surface deformation of a structure comprises: a process for identifying, by individual identification means, a structure protection sheet bonded to the surface of the structure; a process for digitally capturing, by digital image capturing means, an image of the surface of a resin layer disposed in the outermost layer of the structure protection sheet; a process for measuring, by dimensional measurement means, surface dimensions of the resin layer from image data obtained through the digital image capturing; and a process for calculating, by calculation means, the quantity of surface deformation of the resin layer from data of the measured dimensions.SELECTED DRAWING: Figure 1
Patent JP-2023143186-A (JP)
Title: Polymer, adhesive composition containing polymer, and laminate
Inventor: IGAWA MASASHI
IPC: C08F20/26
Filed: 2022-03-25
Abstract: To provide a degradable polymer that can enhance bonding strength by simple treatment after the bonding, and an adhesive composition including the polymer.SOLUTION: A polymer includes a monomer unit derived from a monomer represented by a specific formula, and has a mass average molecular weight of 250,000 or more and 2,000,000 or less in terms of polymethyl methacrylate, measured by gel permeation chromatography.SELECTED DRAWING: None
Patent JP-2023144863-A (JP)
Title: Fine particle, prophylactic drug or therapeutic drug for parkinson's disease, and method for improving parkinson's disease
Inventor: KOGA SHOJI
IPC: A61K31/7105
Filed: 2022-03-28
Abstract: To provide a fine particle containing a specific miRNA of interest as therapeutic means for Parkinson's disease.SOLUTION: Provided are: a fine particle, comprising miRNA downregulated in Parkinson's disease or miRNA used for the treatment of Parkinson's disease; a prophylactic drug or therapeutic drug for Parkinson's disease; and a method for improving Parkinson's disease.SELECTED DRAWING: Figure 1
Patent JP-2023147564-A (JP)
Title: infrared heater
Inventor: NUMATA YUDAI
IPC: H05B3/10
Filed: 2022-03-30
Abstract: To provide an infrared heater that can heat an object that is located far away, can effectively reduce the possibility that an infrared light emitter is visible from the outside, and can improve the degree of freedom in design.SOLUTION: An infrared heater includes an infrared emitter that emits infrared rays, and an optical filter that is arranged to cross infrared rays, and has a visible light scattering layer. The optical filter has in-line transmittance or total light transmittance of 60% or more in at least a portion within the wavelength range of 760 nm or more and 4000 nm or less. The value of L* on the surface of the visible light scattering layer measured by the SCE (specular reflection elimination) method using a spectrophotometer is 20 or more.SELECTED DRAWING: Figure 1
Patent JP-2023148555-A (JP)
Title: robot
Inventor: SHIMIZU IPPEI
IPC: B25J19/00
Filed: 2022-03-30
Abstract: To provide a robot configured so that even when the robot is conveyed while being mounted on the other device, a horizontal multi-joint robot arm part thereof can be suppressed from interfering with the other member.SOLUTION: A substrate conveying robot 100 is provided with: a base part 20; a horizontal multi-joint robot arm part 30 connected to the base part 20; and an arm movement restricting jig 50, mounted on the base part 20, which restricts movement of the horizontal multi-joint robot arm part 30 when the horizontal multi-joint robot arm part 30 is not used.SELECTED DRAWING: Figure 3
Patent JP-2023152368-A (JP)
Title: Attaching structure of functional component
Inventor: SATO YUKICHI
IPC: B60R13/02
Filed: 2022-04-04
Abstract: To provide an attaching structure of a functional component that can easily attach and detach a functional component to and from an attachment hole for a vehicular interior material and can block the hole having the functional component attached thereto to suppress design thereof from deteriorating.SOLUTION: In an attaching structure of a functional component, a part 74 to be locked is inserted into a through-hole 30 and then is rotated around a shaft line from the insertion position, and an extending part 82 is positioned at a lock position at which the part is locked and stopped at an outside surface of a vehicle interior of an interior material main body part 22A, so that a functional component 20 is attached to a vehicular interior material 12, where a locking part 24 has a standing wall 48 in an annular shape formed to surround the through-hole 30 on the outside surface of the vehicle interior of the interior material main body part 22A and a stopper mechanism 90 that restricts displacement in a rotating direction of the extending part 82 at the lock position is arranged between the standing wall 48 in the annular shape and a tip of the extending part 82.SELECTED DRAWING: Figure 15
Patent JP-2023154535-A (JP)
Title: Clamp device and manufacturing method of stator
Inventor: MASUGI YUTAKA
IPC: H02K15/04
Filed: 2022-04-07
Abstract: To reduce possibility that heat generated due to welding damages a coating of a segment coil.SOLUTION: A clamp device performs clamp operation to connect a first peeling part in which a coating at a first end part is peeled and a second peeling part in which a coating at a second end part 34b is peeled through laser welding. A second pawl 60b extends in a radial direction of a second shaft 58b. The clamp device performs clamp operation for rotating the second shaft 58B with a center axis of the second shaft 58B as a center until the second pawl 60b abuts on the second end part 34b in a state in which a first shaft 58A and the second shaft 58B move toward a stator core so that the first end part and the second end part 34b are sandwiched between the first shaft 58A and the second shaft 58B, the first shaft 58A is pressed against a second curvature part 34a and the second shaft 58B is pressed against a first curvature part 32a.SELECTED DRAWING: Figure 12
Patent JP-2022165925-A (JP)
Title: Data labeling method, device, electronic apparatus, and readable storage medium
Inventor: ZHANG YE
IPC: G06N20/00
Filed: 2022-04-13
Abstract: To provide a data labeling method, a device, an electronic apparatus, and a readable storage medium that save labor costs and time costs and improve labeling efficiency.SOLUTION: A data labeling method includes a step 101 of acquiring a detection model. A detection model is acquired through training using sensor data being artificially labeled start data. The method also includes a step 102 of performing obstacle detection on the sensor data to be labeled by using the detection model. The start data and the sensor data to be labeled are sensor data of a same type. The method further includes a step 103 of performing obstacle tracking matching on the basis of a detection result to acquire pieces of obstacle locus information, and a step 104 of correcting the detection result on the basis of, the pieces of obstacle locus information and taking the detection result after the correction as a desired labeling result.SELECTED DRAWING: Figure 1
Patent JP-2023157134-A (JP)
Title: Inner gearing planetary gear device and joint device for robot
Inventor: LIN WENJIE
IPC: F16H1/32
Filed: 2022-04-14
Abstract: To provide an inner gearing planetary gear device and a joint device for a robot, capable of easily stabilizing engagement of internal teeth and external teeth.SOLUTION: An inner gearing planetary gear device 1A includes an internal gear 2, a planetary gear 3 and a holding member 80. The internal gear 2 has an annular gear main body 22, and a plurality of outer pins 23 auto-rotationally held in a plurality of inner peripheral grooves 223 formed on an inner peripheral surface 221 of the gear main body 22 and configuring internal teeth 21. The planetary gear 3 has external teeth partially engaged with the internal teeth 21. The holding member 80 is disposed inside of the gear main body 22 and holds the plurality of outer pins 23 with the gear main body 22 in a radial direction. The inner gearing planetary gear device 1A rotates the planetary gear 3 relatively to the internal gear 2 by oscillating the planetary gear 3 on a rotating shaft as a center. The holding member 80 has a plurality of outer peripheral grooves 801 for holding the plurality of outer pins 23 on an outer peripheral surface 800.SELECTED DRAWING: Figure 12
Patent JP-2023159960-A (JP)
Title: 筒形マウント
IPC: F16F15/08
Filed: 2022-04-21
Abstract: 【課題】インナ部材とアウタ筒部材の軸方向離隔側への大きな荷重入力に対する耐久性の向上が図られると共に、軸方向接近側への荷重入力に対する特性のチューニング自由度の更なる向上が図られる、新規な構造の筒形マウントを提供する。【解決手段】インナ部材１２とアウタ筒部材１４が筒状の本体ゴム弾性体１６によって連結された筒形マウント１０において、インナ部材１２は、本体ゴム弾性体１６に向けて開口するカップ部材４４を備えており、本体ゴム弾性体１６の軸方向一方の端部がカップ部材４４に挿し入れられて取り付けられて、カップ部材４４の底壁４６が本体ゴム弾性体１６の軸方向一方の端面に非接着で重ね合わされており、カップ部材４４の周壁４８が開口側へ向けて拡開しており、周壁４８が少なくとも開口部分において本体ゴム弾性体１６に対して外周へ離れた状態で隙間５８を持って外挿された変形規制部５６とされている。【選択図】図１
Patent JP-2022167840-A (JP)
Title: Air cooling device
Inventor: MATSUBARA SHINYA
IPC: A41D13/002
Filed: 2022-04-21
Abstract: To provide an air cooling device using a cold insulation material, which is light-weighted and can reduce exchange frequency of the cold insulation material by prolonging cold insulation effect (25°C or below, for example) for more than one hour while sufficiently maintaining an air flow rate.SOLUTION: An air cooling device 1 using a cold insulation material for sending cold air for keeping a cold object cold from a blower fan 19 includes a cooling mechanism which makes outside air sucked from an intake port pass through a passage (main cooling chamber 9) provided inside to cool it to cold air and sends the cold air from blower means connected to the passage. The cooling mechanism includes: a main cooling cold insulation material 11 which is arranged inside the passage; and a backup cold insulation material 15 which is a cold insulation material different from the main cooling cold insulation material 11 and is arranged outside the passage. A thermally conductive material (copper plate partition plate 17) is used for a wall of the passage of a portion (cooling chamber 13) in which the backup cold insulation material 15 is arranged, and is covered with a heat insulation material such as urethane for cold insulation so as to accommodate and enclose the main cooling cold insulation material 11 and the backup cold insulation material 15 inside the cooling chamber .SELECTED DRAWING: Figure 1
Patent JP-2023160409-A (JP)
Title: タービンハウジングおよび可変容量型のターボチャージャ
IPC: F02B39/00
Filed: 2022-04-22
Abstract: 【課題】ノズルベーンの信頼性を向上できるタービンハウジングおよび該タービンハウジングを備える可変容量型のターボチャージャを提供する。【解決手段】タービンハウジングは、スクロール流路の外周端とハブ側流路壁面の外周端とを繋ぐスクロール流路壁面を有する。スクロール流路壁面は、舌部を通過するタービンロータの軸線に沿った断面において、スクロール流路の外周端に接続された外周端からタービンロータの径方向の内側に向かって延びる第１円弧部と、第１円弧部の内周端とハブ側流路壁面の外周端とを繋ぐクリフ部であって、第１円弧部の内周端に接続されるとともに第１円弧部との間の変曲点を形成する第２円弧部を含むクリフ部と、を含む。変曲点は、ハブ側流路壁面の外周端よりタービンロータの軸方向における先端側、且つ、ハブ側流路壁面の外周端より上記径方向の外側にオフセットされて位置する。【選択図】図６
Patent JP-2022171618-A (JP)
Title: Drive device with a large number of interlocked pendulums
Inventor: HSU PO-CHI
IPC: F16H33/02
Filed: 2022-04-27
Abstract: To provide a drive device in which a large number of pendulums are interlocked.SOLUTION: A drive device includes a passive unit 2 applied to connection to a driven facility, a drive unit 3 interlocked with the passive unit 2, and a starter unit 4 connected to the drive unit 3. The passive unit 2 comprises a flywheel 2. The drive unit 3 comprises three motion modules 30 connected to the flywheel 21 at an interval therebetween. Each of the motion modules 30 comprises a gear plate 301 which engages with the flywheel 21, and a pendulum 302 on the gear plate 301. A clearance between mutually corresponding positions of adjacent pendulums 302 has an angular difference of 120 degrees. The starter unit 4 comprises an active member 42 interlocked with a starter motor 41 and connected to one of the motion modules 30, and a transmission member 44 which is interlocked with the passive unit 2 and rotates the individual motion modules 30 simultaneously in coordination.SELECTED DRAWING: Figure 2
Patent JP-2023163957-A (JP)
Title: キーシステム、車両制御方法、及び鍵生成装置
IPC: E05B49/00
Filed: 2022-04-28
Abstract: 【課題】車両の室内を荷物の配達先とする場合の利便性を向上できるキーシステム、車両制御方法、及び鍵生成装置を提供する。【解決手段】ユーザの荷物の配達先として車両２の室内が指定された場合に、業者の端末３である業者端末２１に第１鍵情報Ｄa1が付与される。これにより、業者端末２１での車両ドア１３の施解錠が許可される。ユーザ端末２３には、第１鍵情報Ｄa1とは別の第２鍵情報Ｄa2が登録されている。制御部３３は、認証成立した端末３が業者端末２１の場合には、業者端末２１による車両ドア１３の施解錠を許可しつつも、室内に設けられた収納部１８に関して施解錠を許可しないようにする。制御部３３は、認証成立した端末３がユーザ端末２３の場合には、少なくとも収納部１８の施解錠を許可する。【選択図】図１
Patent JP-2023165261-A (JP)
Title: シート型荷重センサ
IPC: G01L5/1623
Filed: 2022-05-02
Abstract: 【課題】簡単な構成でせん断荷重が検出可能なシート型荷重センサを提供する。【解決手段】第１基材と、第２基材と、第１基材および第２基材の間に設けられた複数の感圧層と、第１基材上に設けられ、感圧層に接続される第１配線と、第２基材上に設けられ、感圧層のそれぞれに接続される複数の第２配線と、第１基材上に設けられる複数の第３配線と、第２配線の各々と第３配線の各々とを電気的に接続すると共に、第１基材および第２基材を接着する複数の導電接合部とを備える、シート型荷重センサ。【選択図】図１
Patent JP-2023166208-A (JP)
Title: 色素増感太陽電池
IPC: H01G9/20
Filed: 2022-05-09
Abstract: 【課題】ユニット間の電極を導電性を持たせた封止材によって導電接続させつつ、製造の容易な色素増感太陽電池を提供すること。 
【解決手段】色素増感太陽電池は、第１のユニットと第２のユニットを備える。第１のユニットは、第１の基板に形成された第１の電極と、第１の基板と対向して配置される第２の基板に形成された第１の対向電極と、第１の電極と第１の対向電極との間に形成された、電子捕集剤と色素とを含む第１の光吸収層と、第１の電解液と、第１の触媒層とを有する。第２のユニットは、第１の基板に形成された第２の電極と、第２の基板に形成された第２の対向電極と、第２の電極と第２の対向電極との間に形成された、電子捕集剤と色素とを含む第２の光吸収層と、第２の電解液と、第２の触媒層とを有する。第１の電極と第２の対向電極とは、紫外線硬化樹脂を含む封止材に形成された導通部によって導電接続されている。 
【選択図】図２
Patent JP-2023167718-A (JP)
Title: ポイント事業者支援システム
IPC: G06Q30/0226
Filed: 2022-05-12
Abstract: 【課題】 受益者によるポイントの使用を促進し、またポイントを発行したポイント事業者の意向に沿って対象品を制限することができるようにする。【解決手段】 受益者端末５は、ポイント事業者によって提供されたアクセス情報によりインターネット９を介して支援サーバ１にアクセスし、ポイント事業者が発行したポイントを使用して購入することができる複数の対象品を紹介した対象品紹介ページ８２を支援サーバ１に送信させて表示させる。受益者が対象品を選択して送信すると、支援サーバ１上のポイント使用申請受付プログラム１６が、使用ポイント値を保有ポイント情報ファイル２３において減額してポイント残高を更新する。各対象品紹介ページ８２は、対象品情報マスタファイル２４から抽出された各対象品の情報が掲載されるページであるとともに、ポイント事業者ごとに異なる対象品を抽出して対象品情報を掲載することが可能なページである。【選択図】 図１
Patent JP-2022119828-A (JP)
Title: On-demand request for system information
IPC: H04W48/14
Filed: 2022-05-17
Abstract: PROBLEM TO BE SOLVED: To provide method and apparatus for requesting system information. 
     SOLUTION: A method includes transmitting, from a user terminal to a network node, a request for at least one system information block group each comprising one or more system information blocks. One or a plurality of system information blocks may be grouped according to characteristics of the one or plurality of system information blocks. The method further includes receiving one or a plurality of system information block groups from the network node. The one or plurality of system information block groups comprises at least one system information block group. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023170657-A (JP)
Title: 空気調和機
IPC: F24F1/0068
Filed: 2022-05-19
Abstract: 【課題】冷媒漏洩時の安全性を向上した空気調和機を提供する。【解決手段】本開示における空気調和機は、圧縮機、室外熱交換器、室外ファン、および、膨張機構を有する室外機と、室内熱交換器、および、室内ファンを有する室内機と、を備え、前記室内機と前記室外機とが内外接続配管により接続されることで冷凍サイクル回路を形成し、前記冷凍サイクル回路は、可燃性冷媒を用い、前記内外接続配管は、前記室内機から延びる室内側接続配管を有し、前記室内側接続配管は、前記室内機の外側まで延出する。【選択図】図２
Patent JP-2023177063-A (JP)
Title: 撮像装置、表示システム及び車両
IPC: G03B17/55
Filed: 2022-06-01
Abstract: 【課題】発熱体の熱を伝達しながら、レンズユニットへの熱伝達を低減させる撮像装置を提供する。【解決手段】撮像体１００は、発熱体２０と、レンズユニット１０と、熱伝達体３０と、第１伝熱板４０と、を有する。熱伝達体３０は、発熱体２０及びレンズユニット１０の間に介在する。発熱体２０から熱伝達体３０に熱が伝達される。第１伝熱板４０は、レンズユニット１０及び熱伝達体３０の間に介在する。第１伝熱板４０は、一方の主面４０ａ側で熱伝達体３０と接触し、他方の主面４０ｂ側でレンズユニット１０と接触する。第１伝熱板４０と熱伝達体３０との間の第１接触面積が、第１伝熱板４０とレンズユニット１０との間の第２接触面積よりも大きい。【選択図】図１