baber/WOPTO huggingface dataset:
Patent WO-2021031355-A1 (WO)
Title: Method and apparatus for measuring pressure and ratio in wave-free period, and system and storage medium
Inventor: LIU GUANGZHI
IPC: A61B5/021
Filed: 2019-11-01
Abstract: A method and apparatus for measuring pressure and ratio in a wave-free period, and a system and a storage medium. The method for measuring instantaneous coronary average pressure in a wave-free period comprises: collecting a real-time blood pressure value of a patient (S01); determining a wave-free period of the coronary artery of the patient (S02); and extracting the blood pressure value of the wave-free period according to the determined wave-free period of the coronary artery of the patient, and calculating the instantaneous coronary average pressure at the same moment as the blood pressure value according to the blood pressure value (S03). According to the method for measuring the instantaneous coronary average pressure in the wave-free period, the wave-free period can be determined and the real-time blood pressure value in the wave-free period of the patent can be collected clinically or in other ways without depending on an electrocardiogram only by means of the invasive pressure waveform, that is, the instantaneous coronary average pressure at the same moment as the blood pressure value can be obtained, the problem that the instantaneous coronary average pressure in the wave-free period can be measured only with the electrocardiogram in the prior art is solved, the measurement is simpler, and the accuracy is high.
Patent WO-2021087832-A1 (WO)
Inventor: YOU XIN
IPC: H04W36/00
Filed: 2019-11-06
Abstract: Provided are a wireless communication method and a terminal device. The method is applied to the terminal device, and comprises: in the process of handover, from a source network device to a target network device on the basis of a dual active protocol stack (DAPS), of data transmission, if a handover command is received, performing handover, from a source cell to a target cell, of Uplink Packet Data Convergence Protocol (UL PDCP) Protocol Data Unit (PDU) transmission. By means of the handover command, the terminal device is triggered to perform handover of the UL PDCP PDU transmission from the source cell to the target cell. For a scenario in which a random access is not required, it can be ensured that the terminal device only transfers data to the target cell after correctly accessing to the target cell, so as to reduce the probability of handover failure or ping-pong handover back to the source cell due to incorrect access to target cell communication, thereby improving the user experience.
Patent WO-2021092719-A1 (WO)
Inventor: WANG SHENGDIAN
IPC: C07K19/00
Filed: 2019-11-11
Abstract: 一种抗PD-1抗体与IL-21融合蛋白，所述融合蛋白既能阻断PD-L1与T细胞表面PD-1的结合，发挥抗PD-1抗体的肿瘤治疗作用，又能将IL-21靶向肿瘤特异性T细胞，诱导T细胞的分化，调控T细胞功能，所述融合蛋白具有显著增加抗PD-1抗体的肿瘤治疗效应的功能，具有广阔的医用治疗前景。
Patent WO-2021102715-A1 (WO)
Title: A conditioning composition
Inventor: FENG JI
IPC: A61K8/34
Filed: 2019-11-27
Abstract: A cosmetic composition comprises at least one emollient chosen from ester oils and/or dialkylethers and/or dialkylcarbonates, at least one emulsifier and a combination of fatty alcohols. It can be a conditioning composition with a caring effect and at the same time being easily rinsed off.
Patent WO-2020228300-A1 (WO)
Title: Preparation method for yellow fluorescent glass ceramic and application thereof
Inventor: XIAO WENGE
IPC: C03C10/14
Filed: 2019-11-29
Abstract: A preparation method for a yellow fluorescent glass ceramic and an application thereof. The method comprises: uniformly mixing a monomer, a crosslinking agent and a filling solvent, adding fumed silica and stirring until even, and then adding an ultraviolet initiating agent and an ultraviolet absorber and thoroughly stirring; adding a yellow phosphor (Y,Gd)AG:Ce, and stirring thoroughly and defoaming; introducing the slurry into a mold, and curing by means of ultraviolet irradiation, or performing 3D printing, so as to obtain a green body; placing the green body into a high-temperature furnace for heating, so as to obtain phosphor-coated porous silica glass, and then placing same into a high-temperature vacuum furnace for densification sintering, so as to obtain a densified fluorescent glass ceramic; and finally performing cutting and surface polishing treatment.
Patent WO-2020134912-A1 (WO)
Inventor: SHEN JINSONG
IPC: E21B10/25
Filed: 2019-12-03
Abstract: 一种能实现密封非密封转换的牙轮钻头及转换方法，包括牙掌（1）和牙轮（2），牙掌（1）通过轴颈（3）与牙轮（2）相连，牙轮（2）内孔端口设置有轴承密封圈（4），轴承密封圈（4）与轴颈（3）相配合形成轴承腔；牙掌（1）上设置有阀腔，阀腔通过油孔（5）与轴承腔导通；阀腔内置有转换阀，转换阀包括阀体（6），阀体（6）上端口设有挡板（7），挡板（7）及阀体（6）下端均开设有通孔；阀体（6）上端部和下端部均交错分布若干通气孔（10）；阀体（6）内腔设有可在气体压力下向阀体（6）下端移动的滑阀（8）；滑阀（8）呈工字型，由上端滑板（8a）和下端滑板（8b）通过连接杆（8c）连接构成；当滑阀（8）位于阀体（6）的内腔最上端时，阀体（6）上端部的若干通气孔（10）均位于滑阀（8）的下端滑板（8b）上方。该牙轮钻头在工作过程中可实现轴承腔的全密封，从而避免水分和杂质进入轴承腔。
Patent WO-2020192171-A1 (WO)
Title: Indoor positioning control method, system and electronic device
Inventor: ZHAO YUBIN
IPC: H04W4/33
Filed: 2019-12-04
Abstract: The present application relates to an indoor positioning control method, a system and an electronic device. The method comprises: step a: obtaining positioning data of a user by means of a transmission node; step b: a cloud server calculating the positioning sub-area in which the user is currently located on the basis of the positioning data by means of a box algorithm, calculating a positioning sub-area matrix and a trigger area matrix according to boundary point coordinates of the positioning sub-area, and obtaining an energy-saving control matrix according to the positioning sub-area matrix and the trigger area matrix; and step c: generating a control command according to the energy-saving control matrix, and broadcasting the control command to the transmission node to control the working state of the transmission node. In the present application, positioning data is obtained by means of the transmission node, and the cloud server performs positioning calculation according to the positioning data, and controls the working states of transmission nodes in different positioning sub-areas according to positioning calculation results such that the positioning system saves energy and reduces consumption.
Patent WO-2021120156-A1 (WO)
Title: Dispositif de chauffage
Inventor: LIU CONAN (YAN)
IPC: B60N2/56
Filed: 2019-12-20
Abstract: La présente invention concerne un dispositif de chauffage (10), en particulier pour un siège de véhicule, ledit dispositif de chauffage comprenant un élément de support (12) et un agencement de fil électroconducteur (14) qui est fixé sur l'élément de support (12), l'agencement de fil (14) comprenant une pluralité de sections de fil (16a à 16p), chaque section de fil (16a à 16p) présentant une pluralité de boucles de fil (18a à 18e, 20a-20e) et une pluralité de sections de fil (16a à 16p) de l'agencement de fil (14) étant disposées côte à côte de manière à se chevaucher de telle sorte que les sections de filetage (16a à 16p) de l'agencement de fil (14) se croisent plusieurs fois.
Patent WO-2021120196-A1 (WO)
Inventor: CHEN YONGLI
IPC: H05K3/40
Filed: 2019-12-20
Abstract: Provided are a transmission line, an electronic device, and a method for manufacturing the transmission line. The transmission line comprises a first substrate layer, a first signal line arranged on one side of the first substrate layer, and a second signal line buried in the first substrate layer. The transmission line further comprises a first through hole that penetrates through the first substrate layer so as to electrically connect the first signal line to the second signal line. The position on the other side of the first substrate layer corresponding to the first through hole is recessed in a direction approaching the first signal line in order to form an isolation groove, so as to remove part of the first through hole. The transmission line further comprises a reinforcement plate that covers the isolation groove. The reinforcement plate comprises a second substrate layer stacked with the first substrate layer and a first grounding layer arranged on the side of the second substrate layer close to the first substrate layer. According to the transmission line provided in the present invention, a through hole is provided in a substrate layer, such that a smaller diameter can be achieved, and more space can be provided for impedance adjustment of the transmission line. In addition, the processing process is simpler and the yield is high, thereby greatly improving the excellence rate of the transmission line.
Patent WO-2021008081-A1 (WO)
Inventor: LONG GAOFENG
IPC: B65G67/04
Filed: 2019-12-23
Abstract: Vehicle-loading palletizing equipment, comprising a palletizing apparatus (1) and a palletizing tooling (2). The palletizing apparatus comprises a base (11), a robotic arm mechanism (12), and a support mechanism (13). One end of the robotic arm mechanism is pivotally connected to the base. The support mechanism is provided at the middle part of the robotic arm mechanism. The palletizing tooling (2) comprises a mounting frame (21), a luffing mechanism (26), a feeding mechanism (22), a sorting mechanism (23), a pushing mechanism (24), and a tray mechanism (25). The mounting frame is connected to one end of the robotic arm mechanism away from the base via the luffing mechanism. The feeding mechanism is mounted on the mounting frame. The feeding mechanism forms a delivery channel. The sorting mechanism is provided with a sorting station provided at an outlet of the delivery channel. The sorting station is provided on either side with the tray mechanism. The pushing mechanism is provided on one side of the tray mechanism and used for moving cargo on the tray mechanism out of the tray mechanism for palletization.
Patent WO-2021127863-A1 (WO)
Inventor: LI WANXIA
IPC: G02B13/00
Filed: 2019-12-23
Abstract: Disclosed is an optical camera lens (10), sequentially comprising, from an object side to an image side, a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6), a seventh lens (L7), and an eighth lens (L8), which satisfy the following relational expressions: 0.78 ≤ f1/f ≤ 1.35; f2 ≤ 0 mm; 0.20 ≤ (R7+R8)/(R7-R8) ≤ 0.90; and 3.80 ≤ d5/d6 ≤ 15.00. The optical camera lens (10) has good optical properties of a large aperture, a wide angle and ultra-thinness.
Patent WO-2021103258-A1 (WO)
Title: 一种腕带设备及其升级方法、系统
Inventor: LIANG HONGYAO
IPC: G06F8/654
Filed: 2019-12-28
Abstract: 一种腕带设备的升级方法、系统，所述方法包括：在升级事件被触发时，第一腕带设备发送包括自身系统的第一版本号的第一BLE广播消息，在接收到第二腕带设备发送的包括其版本号的第二BLE广播消息后，将自身的系统版本与第二腕带设备的系统版本进行比较，如果自身的系统版本高，则将自身的第一升级包发送至第二腕带设备以实现对第二腕带设备的系统升级；如果自身的系统版本低，则接收第二腕带设备发送的第二升级包以实现对自身的系统升级。采用该升级方式，升级事件一旦被触发，后续无需用户操作便可实现系统的自动升级，尤其适用于老人和小孩，提高了用户体验。
Patent WO-2020135795-A1 (WO)
Inventor: FENG YINHUA
IPC: H04N5/235
Filed: 2019-12-28
Abstract: 本发明实施例涉及一种图像显示方法、装置和电子设备，所述图像显示方法包括：获取当前图像的亮度信息；根据所述当前图像的亮度信息调整图像或者说明信息的色彩，以使所述图像的色彩和所述说明信息的色彩具有预设程度的反差。本发明实施例根据当前图像的亮度信息调整图像或者对图像的说明信息的色彩，以使所述图像的色彩和所述说明信息的色彩相适合。从而能使用户获得较好的观看体验。
Patent WO-2021072983-A1 (WO)
Inventor: LIN LIMING
IPC: A62C27/00
Filed: 2019-12-31
Abstract: Disclosed are a pulley assembly, a telescopic boom and a fire fighting truck, the pulley assembly comprising: a pulley block frame body (10), a mounting base assembly (20) connected to the pulley block frame body (10), and a supporting shaft (30), wherein a first end of the supporting shaft (30) is connected to a mounting plate (64); a second end of the supporting shaft is connected to the mounting base assembly (20); the mounting base assembly (20) is hinged to the mounting plate (64) by means of the supporting shaft (30; the mounting base assembly (20) comprises a first limiting member (24); and the first limiting member (24) is used for limiting the mounting base assembly (20) from being separated from the supporting shaft (30). According to the pulley assembly, the risk of a fixing bolt being cut off is prevented, such that the pulley block frame body (10) and the mounting base assembly (20) can rotate around the supporting shaft (30) relative to an outer arm (60), and the pulley assembly is prevented from being damaged by a large impact force generated by sudden cutting off of the fixing bolt.
Patent WO-2020147703-A1 (WO)
Title: 信息指示方法、信息获取方法、终端及网络节点
Inventor: KIMBA DIT ADAMOU BOUBACAR
IPC: H04W76/19
Filed: 2020-01-14
Abstract: 本公开提供一种信息指示方法、信息获取方法、终端及网络节点，其中，所述信息指示方法包括：向网络节点发送指示信息；所述指示信息用于指示终端发生快速恢复失败FRF，所述FRF为第一连接失败后，通过第二连接发起的快速恢复第一连接失败，所述第一连接为所述终端与第一节点的连接，所述第二连接为所述终端与第二节点的连接。
Patent WO-2020151552-A1 (WO)
Inventor: WU JUN
IPC: C08K3/22
Filed: 2020-01-15
Abstract: The present invention provides a makrolon composition, comprising the following components in parts by weight: 100 parts of makrolon; 1-30 parts of boehmite; 0.1-1.5 parts of sulfonate; and 1-12 parts of phosphorous compound. The makrolon composition has the advantages of low fuming density, low heat release rate and good tenacity maintenance. Further disclosed is the use of sulfonate and phosphorous compound in reducing fume density and heat release rate of makrolon. The compound comprises the following components in parts by weight: 100 parts of makrolon; 0.1-1.5 parts of sulfonate; and 1-12 parts of phosphorous compound. The sulfonate and phosphorous compound is used in combination with makrolon, which can effectively reduce fume density and heat release rate.
Patent WO-2020173276-A1 (WO)
Inventor: SUN YUXING
IPC: G06Q20/40
Filed: 2020-01-22
Abstract: 一种风险支付的处理方法、装置及设备，交易平台侧若发现第三方支付账户具有风险，可以向第三方支付服务方发起安全验证请求，以触发所述第三方支付服务方对本次支付执行安全验证。通过引入第三方支付服务侧的核身能力，能够在支付过程中释放盗用风险，一方面可以保证支付的安全性，另一方面可以保证用户的支付体验，提升支付成功率。
Patent WO-2020156461-A1 (WO)
Title: 一种标定系统及其标定支架
Inventor: LAI BIWANG
IPC: G01S17/08
Filed: 2020-01-22
Abstract: 一种标定系统及其标定支架，标定支架包括：底座（10）；立架组件（20），连接于底座；横梁组件（30），安装于立架组件；以及挂载组件（60），包括夹持部（64），挂载部（62）以及安装部（66），夹持部连接于挂载部，用于将挂载组件安装在立架组件上，并使挂载组件可沿立架组件的长度方向移动，挂载部上设置有安装部，安装部连接于横梁组件，以使横梁组件沿立架组件的长度方向移动时带动挂载组件沿立架组件的长度方向移动，挂载部用于挂载标定元件（102）。通过挂载组件分别安装于横梁组件及立架组件，当挂载组件挂载有标定元件时，横梁组件及立架组件共同承载标定元件，可避免横梁支承标定元件导致横梁变形的隐患。
Patent WO-2021159423-A1 (WO)
Inventor: WANG RUNXIN
IPC: H04W72/04
Filed: 2020-02-14
Abstract: Divers aspects de la présente divulgation concernent de manière générale la communication sans fil. Selon certains aspects, un équipement utilisateur peut recevoir, en provenance d'une station de base, un déclencheur de signal de référence de sondage (SRS), le déclencheur comprenant une indication d'un ensemble de ressources de SRS apériodique (A-SRS), l'ensemble de ressources d'A-SRS comprenant une pluralité de ressources d'A-SRS ; et transmettre, en réponse au déclenchement de SRS, un A-SRS à fentes multiples dans une pluralité de fentes à l'aide d'au moins une partie de l'ensemble de ressources d'A-SRS. De nombreux autres aspects sont décrits.
Patent WO-2020192761-A1 (WO)
Inventor: XIANG CHAO
IPC: G06F16/58
Filed: 2020-03-27
Abstract: 记录用户情感的方法及相关装置。在记录用户情感的方法中，电子设备可以在拍摄场景下预览图像时，识别用户的情感状态，并在拍摄图像时关联存储该拍摄图像和识别到的用户的情感状态，或者，在拍摄图像时关联存储该拍摄图像和与识别到的用户的情感状态相对应的情感元素。这样可以记录用户情感，关注用户情感，提升用户的使用体验。
Patent WO-2020258967-A1 (WO)
Inventor: LIU YUZE
IPC: H04W4/08
Filed: 2020-04-01
Abstract: The present invention provides an industrial application service processing method and system. The system comprises: an industrial equipment client, a 5G communication system, and an industrial application server; the industrial equipment client is configured to initiate an industrial application service request to the industrial application server, and receive an industrial application service response or industrial application service control instruction from the industrial application server; the industrial application server is configured to receive the industrial application service request from the industrial equipment client, provide an industrial application service to the industrial equipment client according the industrial application service request, or send a control instruction to the industrial equipment client; the 5G communication system is configured to bear communications between the industrial equipment client and the industrial application server and provide corresponding communication service capabilities. In the present invention, the combination of the industrial Internet and the 5G communication system solves the problem of future factory application service support and bearing.
Patent WO-2021088313-A1 (WO)
Inventor: ZHAO XIN
IPC: G01D5/36
Filed: 2020-04-09
Abstract: 本发明提供一种可用于激光雷达的状态检测装置，包括：故障诊断单元，配置成可对激光雷达的部件进行故障诊断，并且当诊断到故障存在时输出故障诊断信号；诊断管理单元，所述诊断管理单元与所述故障诊断单元通讯以接收所述故障诊断信号，并配置成根据所述故障诊断信号，确定所述激光雷达的状态。本发明还提供一种激光雷达以及激光雷达的状态检测方法。
Patent WO-2020211855-A1 (WO)
Inventor: ZHU HAOREN
IPC: G08G5/00
Filed: 2020-04-18
Abstract: 一种无人机的鉴权方法及装置（700，800）。方法包括：通信设备在确定终端的类型为UAV之后（301），向鉴权服务器发送终端的鉴权信息（302），使得鉴权服务器可以根据终端的鉴权信息对终端进行鉴权（303），向通信设备发送响应信息（304），从而实现由鉴权服务器完成对终端的鉴权，并且只有在对终端鉴权成功后才允许无人机飞行，因而可以提升无人机飞行的安全性。
Patent WO-2021036294-A1 (WO)
Inventor: WEI MIN
IPC: A61K47/32
Filed: 2020-04-21
Abstract: A vaginal acid-base buffer gel and a preparation method, the gel consisting of the following components by mass: 1%-39% of an oil phase base, 60%-99% of a water phase base, 0.001%-2% of a pH regulator and 0.05%-5% of a bacteriostat, wherein the oil phase base is white petrolatum or liquid paraffin or glyceryl behenate or Span or Tween or glycerol or propylene glycol; the water phase base is hydroxypropyl methylcellulose or carbomer or sodium carboxymethylcellulose or polycarbophil or polyethylene glycol or azone or gelatin or purified water; the pH regulator is citric acid or sodium citrate or sodium hydroxide or hydrochloric acid or triethanolamine or boric acid or borax or sodium dihydrogen phosphate or disodium hydrogen phosphate; and the bacteriostat is benzoic acid or sodium benzoate or benzyl alcohol or benzalkonium bromide or benzalkonium chloride or sorbic acid or potassium sorbate or nipalgin. The prepared product may effectively regulate the original vaginal environment of inflammation, remove vaginal odor and relieve symptoms such as increased vaginal secretions or itching.
Patent WO-2021098149-A1 (WO)
Inventor: XIE ZILI
IPC: B82Y30/00
Filed: 2020-04-28
Abstract: Disclosed in the present invention is a surface plasmon enhanced InGaN/GaN multi-quantum well photoelectrode. A substrate is etched to form a nanorod structure penetrating through a p-GaN layer and going deep to a multi-quantum well active layer, and plasmon metal is filled in the position of the multi-quantum well active layer between nanorods. Also disclosed are an application of the electrode as a working electrode of a solar photoelectrochemical cell, the prepared solar photoelectrochemical cell, and a preparation method for the solar photoelectrochemical cell. In the present invention, a top-down etching technology of a self-assembled Ni mask is employed to regulate the distance between the plasma metal and a multi-quantum well in order to generate near field coupling, and the efficiency of generation and transportation of electron hole pairs on a surface of a multi-quantum well active region is effectively improved under the combined action of an electromagnetic field generated by the surface plasmon effect and a built-in electric field formed by a high doping concentration of a p-n region. The method is suitable for InGaN type photoelectrode materials having adjustable band gaps and matched with solar spectra.
Patent WO-2020244420-A1 (WO)
Title: 运动轨迹确定方法及装置、电子设备
Inventor: SONG ZEYU
IPC: G11B7/00
Filed: 2020-05-26
Abstract: 本公开提供了一种运动轨迹确定方法及装置、电子设备。该电子设备包括：本体(1)、发光组件(2)、感光组件(3)和处理器(4)；发光组件(2)、感光组件(3)和处理器(4)均位于本体(1)上，感光组件(3)与处理器(4)连接；发光组件(2)用于发出探测光；感光组件(3)用于在接收到探测光的反射光后，获取反射光的光学信息；处理器(4)用于根据该光学信息确定发光组件(2)的运动轨迹。
Patent WO-2020239013-A1 (WO)
Title: Interaction method and terminal device
Inventor: HU PENG
IPC: H04M1/725
Filed: 2020-05-28
Abstract: Embodiments of the present application relate to the field of terminals, and provided thereby are an interaction method and a terminal device, which may enhance the flexibility of a user remotely operating an intelligent voice interaction device, and fully develop the capabilities of the intelligent voice interaction device. The method is as follows: a first terminal device receiving first input content from a second terminal device, the first input content comprising first voice content and/or first text content; the first terminal device determining a control instruction corresponding to the first input content; and the first terminal device processing the control instruction corresponding to the first input content. Embodiments of the present application are applied in remote interaction scenarios.
Patent WO-2021017607-A1 (WO)
Title: Disaster risk early warning method and apparatus, computer device and storage medium
Inventor: ZHAO SUQUN
IPC: G06Q10/06
Filed: 2020-05-29
Abstract: A disaster risk early warning method and apparatus, a computer device and a storage medium, which may be implemented by means of smart security in a smart city. The method comprises: crawling information that matches a preset risk keyword in a web page corresponding to a preset network address so as to obtain event information that comprises a plurality of risk events (S110); merging and reorganizing the risk events according to a time factor to obtain risk event reorganization information (S120); acquiring a target risk event that matches a risk early warning request in the risk event reorganization information (S130); and performing calculation on the target risk event according to a preset risk coefficient calculation model to obtain a risk coefficient, and acquiring early warning prompt information that corresponds to the risk coefficient and risk early warning request. On the basis of big data processing technology, early warning may be performed for the risk of risk events occurring at any time, and geographical location information, time information and other factors are integrated in the early warning process, which improves the accuracy of early warning for the risk of the risk events occurring.
Patent WO-2021243668-A1 (WO)
Inventor: XU ZHUOQI
IPC: H04W24/08
Filed: 2020-06-05
Abstract: Certain aspects of the present disclosure provide techniques for dynamic slot management for radio frames. A method that may be performed by a base station (BS) includes determining a physical resource block (PRB) utilization of each active slot of a plurality of active slots over a first monitoring period of time. The method also includes calculating, based on the PRB utilization of each of the plurality of active slots, a PRB average utilization value over the first monitoring period of time. The method further includes determining whether the PRB average utilization value satisfies a first PRB threshold value. The method also includes in response to determining that the PRB average utilization value fails to satisfy the first PRB threshold value, deactivating a set of active slots of the plurality of active slots resulting in a modified plurality of active slots over the first monitoring period of time.
Patent WO-2020253556-A1 (WO)
Inventor: NAKATSUJI TATSUYA
IPC: G02B13/00
Filed: 2020-06-05
Abstract: Provided is a miniature lens system (100) with a large image size and a high optical performance. The lens system (100) comprises, from an object side to an image side, a first positive lens set (110), an aperture stop (S), and a second positive lens set (120). When focusing from an infinite focusing state to a close object focusing state, the first lens set (110) and the second lens set (120) move from the image side to the object side at a fixed interval therebetween on an optical axis; the first lens set (110) comprises, sequentially from the object side, three or more lenses, namely one or more glued lenses and a meniscus aspheric lens (L3) that is convex toward the object side; and the second lens set (120) comprises, sequentially from the object side, four or more lenses, namely one or more glued lenses and a meniscus aspheric lens (L7) that is concave toward the object side. Regarding a focal length f of the whole system, and a focal length f1 of the first lens set (110), a distance TL (a back focal length being in air conversion length) on the optical axis from a lens face closest to the object side to an image plane of the first lens set (110) when focusing to infinity, and the maximum image height Y satisfy 0.5 < f/f1 < 1.1 and 1.9 < TL/Y < 2.4.