baber/WOPTO huggingface dataset:
Patent WO-2020155572-A1 (WO)
Title: Rotation tool for transformer oil tank
Inventor: DENG QINWEN
IPC: B23K37/047
Filed: 2019-07-15
Abstract: A rotation tool for a transformer oil tank comprises a spindle box (1), a push-pull hydraulic cylinder (2) connected to a rear end of the spindle box (1), and a rotation mechanism connected to a front end of the spindle box (1). The rotation mechanism comprises a transmission assembly connected to the spindle box (1), a rotatable supporting assembly connected to the transmission assembly, and an extendable assembly and two rotatable supporting frames connected to the rotatable supporting assembly. The two rotatable supporting frames are respectively provided at two sides of the extendable assembly and opposite to each other in a left-right direction. Each rotatable supporting frame is provided with an angle adjustment assembly.
Patent WO-2020029768-A1 (WO)
Inventor: WANG TINGTING
IPC: H04L1/06
Filed: 2019-07-19
Abstract: 一种用户终端上传数据的方法及装置、存储设备、用户终端，所述方法包括：通过测试确定已配置PDCP复制功能的每个RB的每条无线数据链路的传输质量参数的测量值；根据每条无线数据链路的传输质量参数的测量值与预设参数阈值的比较结果，确定所述无线数据链路是否为待用的无线数据链路；根据所述待用的无线数据链路的数目，PDCP实体对PDCP数据包进行复制，并通过所述待用的无线数据链路发送所述PDCP数据包。本发明方案有助于节省信令开销，且提高传输质量，以及提高传输资源的利用效率。
Patent WO-2021031202-A1 (WO)
Title: Data transmission method and device
Inventor: ZHANG YUNHAO
IPC: H04W72/04
Filed: 2019-08-22
Abstract: Provided are a data transmission method and device capable of reducing a count of repeat transmissions of data, reducing power consumption of a terminal apparatus, saving transmission resources, and maintaining high time diversity gain. The method comprises: a network apparatus sending first information, and a terminal apparatus receiving the first information, the first information being used to configure K repeat transmission occasions; and the network apparatus and the terminal apparatus repeatedly transmitting first data at N of the K repeat transmission occasions, wherein the N repeat transmission occasions are discontinuous in a time domain, K is an integer greater than 1, N is an integer greater than or equal to 1 and less than K.
Patent WO-2020140452-A1 (WO)
Inventor: LI CHAOWU
IPC: H04R1/10
Filed: 2019-08-24
Abstract: 本申请实施例公开了一种扬声器装置，该装置包括耳挂，所述耳挂包括第一接插端和第二接插端，所述耳挂外围包裹保护套管，所述保护套管由弹性防水材料制成；用于容纳耳机芯的机芯壳体，所述机芯壳体与所述第一接插端接插固定，并与所述保护套管弹性抵接；以及用于容纳控制电路或电池的电路壳体，所述电路壳体与所述第二接插端接插固定，所述控制电路或电池驱动所述耳机芯振动以产生声音，且所述声音至少包括两个谐振峰。本申请中机芯壳体与耳挂外围的保护套管弹性抵接，提高了扬声器装置整体的防水效果、简化了扬声器装置的制作和装配工序。
Patent WO-2020043103-A1 (WO)
Title: 一种信号发送、接收方法及装置
Inventor: QU BINGYU
IPC: H04L5/00
Filed: 2019-08-27
Abstract: 提供了一种信号发送、接收方法及装置。终端设备根据序列{x(n)}生成第一信号，所述序列{x(n)}包括N个元素，N为大于1的整数，所述序列{x(n)}满足x(n)＝A·b(n)·j n，n的取值为[0，N-1]，元素b(n)满足b(n)＝u·(1-2s(n))，A和u均为非零复数，由元素s(n)组成的序列{s(n)}是第一序列集合中的序列之一。终端设备发送第一信号。通过使用本申请实施例提供的新的序列，可以在使用PUSCH或PUCCH发送信号时保持较好的频域平坦度，同时保持较低的PAPR值和较低的信号间互相关性，从而满足利用PUSCH或PUCCH发送信号的通信应用环境。
Patent WO-2020134250-A1 (WO)
Title: 用于清洗过滤器的自动清洗设备、控制系统及控制方法
Inventor: PU JIAN
IPC: B01D29/66
Filed: 2019-09-26
Abstract: 一种用于清洗过滤器（10）的自动清洗设备、控制系统及控制方法，该过滤器（10）用于金属有机化合物化学气相沉淀（MOCVD），自动清洗设备包括：容纳碱液的碱液槽（12）；容纳清水的清水槽（14）；循环泵（16），该自动清洗设备具有两个工作状态，第一工作状态时，循环泵（16）将碱液槽（12）内的碱液灌入过滤器（10）内，并将经过过滤器（10）后的碱液循环到碱液槽（12）内；第二工作状态时，循环泵（10）将清水槽（14）内的水灌入到过滤器（10）内，并将经过过滤器（10）后的水循环到碱液槽（12）内。控制系统包括控制单元、与控制单元相连接的复数个控制阀，复数个控制阀分别被控制于不同的模式，以使自动清洗设备处于第一工作状态或第二工作状态。控制方法依次包括如下步骤：a、定时器定义第一预设时间范围，在该时间范围内，使自动清洗设备处于第一工作状态；b、定时器定义第二预设时间范围，在该时间范围内，使自动清洗设备处于第二工作状态。
Patent WO-2021056524-A1 (WO)
Inventor: ZACHARIAS LEENA
IPC: H04W52/02
Filed: 2019-09-29
Abstract: Certain aspects of the present disclosure provide techniques for releasing an RRC connection by a user equipment (UE). A method that may be performed by the UE includes establishing an RRC connection, determining a time duration for a release timer, resetting the release timer, monitoring the RRC connection, and releasing the RRC connection.
Patent WO-2020103654-A1 (WO)
Title: Route selection policy acquisition method and apparatus, route selection policy rule execution method and apparatus, and device and computer-readable storage medium
Inventor: WANG TAO
IPC: H04W40/02
Filed: 2019-10-30
Abstract: Disclosed are a route selection policy acquisition method and apparatus, a route selection policy rule execution method and apparatus, and a device and a computer-readable storage medium, belonging to the field of communications. The acquisition method comprises: receiving an application function request from an application function network element; generating a route selection policy rule for a terminal, wherein the route selection policy rule comprises a service specificator, and the service specificator is used for identifying a service type of traffic in an application program; sending an application function response to the application function network element; and providing the route selection policy rule to the terminal, wherein the route selection policy rule is executed when the terminal has traffic matching the service specificator.
Patent WO-2020192134-A1 (WO)
Title: Exception handling method and apparatus based on spring mvc, and computer device and storage medium
Inventor: XU YONGFU
IPC: G06F9/448
Filed: 2019-11-12
Abstract: An exception handling method based on Spring MVC, the method comprising: acquiring, by means of a front-end controller, a resource request sent by a client; determining a corresponding target handler object according to a resource identifier in the resource request, and handling the resource request by means of the target handler object to obtain a model view object; calling a callback function of an interceptor interface class to verify the model view object; when the callback function returns an exception type code, calling an exception handling object to handle the exception type code to obtain a new model view object; and generating an exception page view object according to the new model view object by means of the front-end controller, wherein the exception page view object is used for enabling the client to display a page comprising exception information corresponding to the exception type code.
Patent WO-2021056757-A1 (WO)
Title: Double-inlet double-outlet cold and hot water mixing valve core
Inventor: WU DUANLONG
IPC: F16K11/074
Filed: 2019-11-15
Abstract: A double-inlet double-outlet cold and hot water mixing valve core, comprising an upper valve plate (5) and a lower valve plate (6) which are attached to each other; the lower valve plate (6) is fixedly disposed, and a cold water inlet (63), a hot water inlet (64), a first mixing water outlet (62) and a second mixing water outlet (63) are disposed on the lower valve plate (6); the upper valve plate (5) is driven by means of a rocker (2) to slide relative to the lower valve plate (6), and a water guide groove (51) is provided in the upper valve plate (5). When the upper valve plate (5) slides, the valve core has the following water outlet modes: the first mixed water outlet (62) is communicated with the cold water inlet (63) and/or the hot water inlet (64) by means of the water guide groove (51), and the second mixed water outlet (63) is not communicated with any water inlet; and/or the second mixed water outlet (63) is communicated with the cold water inlet (63) and/or the hot water inlet (64) by means of the water guide groove (51), and the first mixed water outlet (62) is not communicated with any water inlet; and/or the second water outlet mode is that the first mixed water outlet (62) and the second mixed water outlet (63) are simultaneously communicated with the cold water inlet (63) and/or the hot water inlet (64) by means of the water guide groove (51) The device achieves continuous water supply of the first mixed water outlet (62) and on-demand water supply of the second mixed water outlet (63), and is structurally simple and functionally diverse.
Patent WO-2020173147-A1 (WO)
Inventor: CHENG CHAO
IPC: G09G3/34
Filed: 2019-11-15
Abstract: 一种墨水屏阅读设备及其屏幕驱动方法、存储介质。该方法包括：获取墨水屏的当前温度（101）；判断当前温度是否小于预设的第一温度值（102）；若是，则确定第二温度值，在LUT表中根据第二温度值及待显示内容的灰度值，查表确定墨水屏的驱动波形（103），其中，第二温度值大于或等于第一温度值；否则，在LUT表中根据当前温度及待显示内容的灰度值，查表确定墨水屏的驱动波形（104）；使用查表确定的驱动波形驱动墨水屏显示待显示内容（105）。
Patent WO-2021092949-A1 (WO)
Title: Wireless communication method and terminal device
Inventor: LIN YANAN
IPC: H04L1/16
Filed: 2019-11-15
Abstract: A wireless communication method and a terminal device, capable of implementing a consistent balance of feedback overhead and the understanding between a network device and a terminal device. The method comprises: a terminal device receives a first signaling which is used for instructing the terminal device to transmit feedback information of all hybrid automatic repeat request (HARQ) processes supported by the terminal device; the terminal device determining whether to generate a first feedback information codebook or a second feedback information codebook according to whether the first signaling comprises new feedback indication information (NFI) of each channel group in M channel groups, the first feedback information codebook only comprising the feedback information corresponding to each HARQ process in all of the HARQ processes, the second feedback information codebook comprising the feedback information corresponding to each HARQ process in all of the HARQ processes and the new data indication information (NDI) corresponding to each HARQ process, each channel group comprising at least one channel, and M being greater than 1.
Patent WO-2020119528-A1 (WO)
Title: 复合负极片及其制备方法和应用
Inventor: TANG YONGBING
IPC: H01M4/139
Filed: 2019-12-03
Abstract: 本申请提供了一种复合负极片，所述复合负极片包括同时作为负极集流体和负极活性材料的金属箔，设置在所述金属箔一表面的固态电解质薄膜层，以及在所述固态电解质薄膜层背离所述金属箔的表面设置的类金刚石薄膜层。所述固态电解质层具有较好的导锂性能，提高复合金属负极/电解液界面离子扩散速率，提高电池倍率性能；且所述固态电解质层在可以有效隔离复合金属表面与电解液的接触，减少副反应过程，提高电池库伦效率；且所述固态电解质层还可以对复合金属负极提供有效的机械保护作用，改善复合金属负极在电化学反应过程中因体积变化造成的粉化问题，从而有效提高电池循环性能。
Patent WO-2020228313-A1 (WO)
Inventor: YUAN ZHANGPING
IPC: H02K5/12
Filed: 2019-12-12
Abstract: 一种用于全地形车的电机组件(100)包括：电机(1)，电机(1)具有电机内腔，电机内腔具有开口；可变形的气囊(2)，气囊(2)的敞开端与开口密封连接，气囊(2)内部与电机内腔共同限定出密闭的腔室。进一步提供了一种具有该电机组件(100)的全地形车。
Patent WO-2021114192-A1 (WO)
Inventor: ZHU CHONGMING
IPC: H04W24/02
Filed: 2019-12-12
Abstract: The embodiments of the present application disclose a network parameter adjustment method and a network management device, relating to the field of communications. The method optimizes cluster performance by means of adjusting a network parameter for each cell within a cluster. Said method comprises: determining state information for a first cell group, wherein said state information is used for indicating a traffic counter indicator for the first cell group, the first cell group comprising at least two cells, and the performance of the at least two cells mutually influencing each other; determining a target value of a first network parameter for each cell within the first cell group according to the state information for the first cell group and a network parameter recommendation algorithm; the network parameter recommendation algorithm is used to describe a correlation between state information, a network parameter, and a performance indicator for the first cell group, wherein a first performance indicator for the first cell group is best when the value of the first network parameter for every cell is the corresponding target value.
Patent WO-2020119789-A1 (WO)
Title: Anticorps entièrement humains dirigés contre ox40, procédé de préparation correspondant, et utilisation associée
Inventor: ZHENG YONG
IPC: A61P35/00
Filed: 2019-12-13
Abstract: La présente invention concerne des anticorps monoclonaux entièrement humains dirigés contre l'élément 4 de la superfamille des récepteurs du facteur de nécrose tumorale (TNFRSF4), également appelé OX40 et CD134. L'invention concerne également des procédés de génération d'anticorps au moyen d'une technologie de présentation de phage, les molécules d'acide nucléique codant pour les anticorps anti-OX40, des vecteurs d'expression et des cellules hôtes utilisés pour exprimer les anticorps anti-OX40. L'invention concerne en outre des procédés pour valider la fonction d'anticorps in vitro et l'efficacité d'anticorps in vivo. Les anticorps de l'invention produisent un agent très puissant pour le traitement de multiples cancers par l'intermédiaire de la modulation de la fonction humaine.
Patent WO-2020151394-A1 (WO)
Inventor: LIU ZHAOQI
IPC: A01K79/00
Filed: 2019-12-14
Abstract: The present invention relates to the technical field of fish culture, and relates in particular to a live food feeder. The live food feeder comprises a live food container, a food-catching drive mechanism, a rotary shaft, a catching plate, a food-catching holder and a discharge channel, wherein the live food container is arranged at a fish culture container, the rotary shaft, the catching plate and the food-catching holder are arranged in the live food container, the rotary shaft drives the catching plate to rotate, and the catching plate and the fish-catching holder rotate clockwise as one to catch live food in the live food container; in the above process, the live food slides down the upper surface of the catching plate to enter the fish-catching holder, a door of the fish-catching holder is located on a side surface of the fish-catching holder, the door does not open when abutting against a side wall of the live food container, and when the whole fish-catching holder is exposed from the liquid surface and reaches a door opening position, the door opens and the caught live food flows out along with water in the holder, and enters the fish culture container through the discharge channel. The present invention feeds fish with live food, and the arrangement of the fish-catching holder allows for timed and quantitative live fish feeding.
Patent WO-2020140750-A1 (WO)
Inventor: LIU WENHUI
IPC: H01L29/786
Filed: 2019-12-17
Abstract: Provided are a thin film transistor, a manufacturing method thereof and a display device, which is used to improve the electrical performance of the thin film transistor. The thin film transistor includes: an active layer (230) including a source-drain contact region (231, 233) and a channel region (232); a metal barrier layer (240) covering the source-drain contact region (231,233); a first gate insulating layer (250) covering at least the channel region (232) and exposing the metal barrier layer (240); a gate (260) located on the first gate insulating layer (250) and covering the channel region (232); an intermediate insulating layer (270) located above the gate (260) and having a through hole exposing the metal barrier layer (240); and a source-drain electrode (280) located on the intermediate insulating layer (270) and being in contact with the metal barrier layer (240) through the through hole.
Patent WO-2021022771-A1 (WO)
Inventor: GUO ZHIQIU
IPC: H01L31/18
Filed: 2019-12-26
Abstract: A fabrication method for a photovoltaic assembly, comprising: providing a battery piece having a predetermined thickness, and cutting the battery piece along a direction parallel to the main grid of the battery piece so as to form a cutting line on the surface of the battery piece; breaking the battery piece along the cutting line so as to obtain a plurality of small battery pieces; coating the main grid at the position of the edge of each small battery piece with a conductive adhesive material; overlapping the plurality of small battery pieces in a preset overlapping mode, and curing the conductive adhesive material between the small battery pieces to form a battery string; and packaging the battery string to obtain the photovoltaic assembly. In the foregoing technical solution provided by the present application, the battery piece is not coated with the conductive adhesive material before breaking into pieces, and therefore, if a problem occurs in a device in the process of breaking into pieces or after breaking into pieces, the recycling of the small battery pieces can be realized, so that the waste of the small battery piece is reduced, and the waste of the conductive adhesive material can be reduced, and thus, the fabrication costs of the photovoltaic assembly can be reduced.
Patent WO-2020220706-A1 (WO)
Inventor: MA HEDI
IPC: G07F17/00
Filed: 2019-12-26
Abstract: A method for renting a shared device, the method comprising: a shared control device (12a, 12b) in a disconnected state establishing a short-distance communication connection with a mobile terminal (14a, 14b), in the disconnected state, of a user; and the shared control device (12a, 12b) writing, into the mobile terminal (14a, 14b) by means of the short-distance communication connection, a timestamp for recording the moment the user starts to rent the shared device, or the shared control device (12a, 12b) writing, into the mobile terminal (14a, 14b) by means of the short-distance communication connection, a timestamp for recording the moment the user returns the shared device.
Patent WO-2020147617-A1 (WO)
Inventor: SUN JUNSHUAI
IPC: H04W76/12
Filed: 2020-01-07
Abstract: 本公开实施例公开了一种数据前转的方法和设备。本公开实施例在进行数据前转时，首先SDAP层接收上层重建立请求；最后所述SDAP层确定需要进行前转的数据后，将所述需要进行前转的数据直接向目标SDAP层发送。
Patent WO-2020147690-A1 (WO)
Inventor: YANG XIAODONG
IPC: H04W88/06
Filed: 2020-01-13
Abstract: 本申请实施例公开了一种信息共享方法及用户设备，涉及通信技术领域，可以解决多卡UE驻留在多个不同的小区时，多卡UE的通信性能不稳定的问题。具体方案为：通过第一SIM卡获取第一信息，该第一信息为第二SIM卡接收的第二SIM卡的网络设备发送的信息；根据第一信息，控制第一SIM卡。其中，第一SIM卡和第二SIM卡为UE的至少两个SIM卡中的不同SIM卡。本申请实施例应用于多卡UE的至少两个SIM卡共享信息的过程中。
Patent WO-2021142774-A1 (WO)
Inventor: SHI ZHIHUA
IPC: H04B7/0456
Filed: 2020-01-17
Abstract: 本申请涉及一种通信方法、装置、终端和存储介质，终端设备向网络设备发送第一指示信息；第一指示信息用于指示第一预编码矩阵指示符TPMI组，第一TPMI组为TPMI组集合中的一个TPMI组；然后，接收网络设备指示的第一TPMI。采用上述方法可以提升终端设备的上行覆盖能力，以及终端设备的上行传输性能。
Patent WO-2021036197-A1 (WO)
Inventor: YANG GUIHUA
IPC: C08B31/18
Filed: 2020-01-17
Abstract: The present disclosure relates to the technical field of starch-based adhesives, and in particular, to a preparation method for a starch-based adhesive. Conventional starch-based adhesives have poor flowability, poor film-forming property, low bonding strength, and great limitations in use. Aiming at the above-mentioned shortcomings of the starch-based adhesives, the present disclosure provides a starch-based adhesive and a preparation method therefor. Oxidized corn starch is used as a matrix, and polyvinyl alcohol (PAV)/glycerol is used as a compound plasticizer. The starch-based adhesive is obtained by adding borax and alkali liquor to oxidized corn starch milk and then heating those. Rheological property tests show that the rheological property of the oxidized corn starch is remarkably improved, and a polyhydroxy structure formed by compounding of PVA and glycerol provides richer hydrogen bonding, so that the adhesive is more stable, has remarkably improved water resistance, and is thus a starch adhesive having excellent performance.
Patent WO-2021146943-A1 (WO)
Title: Positive electrode material, electrochemical device comprising same, and electronic device
Inventor: LIU WENYUAN
IPC: H01M4/131
Filed: 2020-01-21
Abstract: A positive electrode material, an electrochemical device comprising the positive electrode material, and an electronic device. The positive electrode material comprises secondary particles formed by primary particles, and the secondary particles comprise: a first group of secondary particles, a second group of secondary particles, and a third group of secondary particles. The particle size of the first group of secondary particles is greater than 1.25 times the average particle size of the secondary particles, the particle size of the second group of secondary particles is less than 0.75 times the average particle size of the secondary particles, and the particle size of the third group of secondary particles is 0.75-1.25 times the average particle size of the secondary particles. By means of the positive electrode material satisfying the particle size conditions above, the electrochemical device has excellent cycle performance and storage performance.
Patent WO-2020156505-A1 (WO)
Inventor: LU BIAO
IPC: A61K31/4192
Filed: 2020-01-31
Abstract: 本公开涉及2-氨基嘧啶类衍生物、其制备方法及其在医药上的应用。具体而言，本公开涉及一种通式(I)所示的氨基嘧啶类衍生物、其制备方法及含有该衍生物的药物组合物以及其作为治疗剂，特别是作为A2a受体和/或A2b受体拮抗剂的用途和在制备用于治疗通过对A2a受体和/或A2b受体的抑制而改善的病况或病症的药物中的用途，其中通式(I)的各取代基与说明书中的定义相同。
Patent WO-2021056961-A1 (WO)
Inventor: FAN CHEN-CHIH
IPC: H04N5/225
Filed: 2020-02-26
Abstract: Provided is an image sensing module, comprising an image sensor chip, a microlens array, and an optical filter. The microlens array is configured on the image sensor chip. The optical filter is configured above the microlens array, and comprises a plastic substrate and an optical filter layer, wherein the optical filter layer is configured on the plastic substrate.
Patent WO-2021174487-A1 (WO)
Inventor: WANG QUNPENG
IPC: C07C67/08
Filed: 2020-03-05
Abstract: Disclosed is a method for preparing a terephthalate. In particular, provided is a method for purifying a crude dibasic ester prepared by reacting terephthalic acid with an alcohol in the presence of an esterification catalyst. The method comprises the following steps: providing the crude ester; treating the crude ester with an alkali aqueous solution at a temperature of 145-165°C, preferably at a temperature of 145-160°C, more preferably at a temperature of 150-155°C, so as to obtain an alkali-treated crude ester, wherein the amount of the alkali aqueous solution used is 0.5-2 wt%, preferably 0.6-1.5 wt%, more preferably 0.8-1.2 wt%, and most preferably 1 wt%, relative to the weight of the crude ester; dehydrating the alkali-treated crude ester to obtain a dehydrated crude ester; and filtering the dehydrated crude ester to obtain a filtered crude ester.
Patent WO-2021184309-A1 (WO)
Title: Touch sensor and display device
Inventor: NIU WENXIAO
IPC: G06F3/041
Filed: 2020-03-19
Abstract: A touch sensor (01) and a display device (03). The touch sensor (01) comprises an open area (421), multiple first touch electrodes (11), multiple second touch electrodes (12), and an electrically-conductive structure (23). The first touch electrodes (11) comprise multiple first touch sub-electrodes (111). The second touch electrodes (12) comprise multiple second touch sub-electrodes (121). Each of a first group of second touch electrodes (12) among the multiple second touch electrodes (12) also comprises an adapter touch electrode (14). A virtual line (1451) running through the center of the open area (421) and extending in a first direction (D1) intersects two opposite edges of the adapter touch electrode (14) in the first direction (D1) respectively at a first position (1452) and a second position (1453); moreover, the distance between the first position (1452) and the second position (1453) is less than the maximum width of at least one among the multiple second touch sub-electrodes (121) in the first direction (D1). The electrically-conductive structure (23) is arranged on the surface of the adapter touch electrode (14), extends in a second direction (D2), and is parallel and electrically connected to the adapter touch electrode (14). The touch controller (01) reduces the channel impedance of the area in which the adapter touch electrode (14) is located.
Patent WO-2021195884-A1 (WO)
Title: 光学系统、拍摄装置及可移动平台
Inventor: GAN RUTING
IPC: G02B13/18
Filed: 2020-03-30
Abstract: 一种光学系统、拍摄装置和可移动平台，所述光学系统包括从物侧至像侧依次设置的第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，所述第一透镜、第二透镜、第五透镜、第七透镜具有负光焦度，所述第三透镜、第四透镜、第六透镜具有正光焦度；所述光学系统满足以下表达式：1.5<|f 1/f|<2.5，4<|(f 2+f 1)/f|<6，1<|f 3/f|<2，1<|f 4/f|<2，0.9<|f 5/f|<1.5，0.9<|f 5/f 6|<1.5，4.5<|f 7/f 6|<6，4.5<|f 7/f|<6，4<|TL/f|<5，0.2<|BFL/TL|<0.5；其中，f是所述光学系统的焦距，f 1至f 7分别为第一透镜至第七透镜的焦距，TL是所述第一透镜靠近物侧的透镜面中心到成像面为止的光轴上的距离；BFL是所述第七透镜靠近像侧的透镜面中心到成像面为止的光轴上的距离。