BELEUCHTUNGSVORRICHTUNG FÜR EINEN KRAFTFAHRZEUGSCHEINWERFER

    公开(公告)号:WO2023280578A1

    公开(公告)日:2023-01-12

    申请号:PCT/EP2022/067098

    申请日:2022-06-23

    Applicant: ZKW GROUP GMBH

    Abstract: Beleuchtungsvorrichtung für einen Kraftfahrzeugscheinwerfer, wobei die Beleuchtungsvorrichtung zumindest eine Lichtquelle und ein Projektionslinsensystem umfasst, welches Projektionslinsensystem eingerichtet ist, das Licht in Form einer Lichtverteilung vor die Beleuchtungsvorrichtung in eine Hauptabstrahlrichtung (X) zu projizieren, und wobei das Projektionslinsensystem aus Folgendem besteht: - eine erste Linse (100) mit einem ersten Brennpunkt, welche erste Linse (100) asphärisch und aus Präzisionsglas mittels Präzisionsglasformen hergestellt ist, wobei die erste Linse eine konvexe Auskoppelfläche und eine konkave Einkoppelfläche zur Erhöhung der Lichteinkopplung aufweist, wobei die erste Linse einen Brechungsindex von n ≥ 1,8 aufweist, - eine zweite Linse (200) mit einem zweiten Brennpunkt, welche aus Glas mittels Glasschleifen hergestellt ist, - eine dritte Linse (300) mit einem dritten Brennpunkt, welche als asphärische, bikonkave Linse aus Kunststoff ausgebildet ist, - eine vierte Linse (400) mit einem vierten Brennpunkt, welche als asphärische, bikonvexe Sammellinse aus Kunststoff ausgebildet ist, und - eine Blende (500), welche zwischen der dritten und vierten Linse (300, 400) angeordnet ist, wobei die zweite und dritte Linse (200, 300) derart eingerichtet sind, um als achromatisches Linsenpaar zur Vermeidung von chromatischer Aberration zusammenzuwirken, wobei die dritte und die vierte Linse (300, 400) im Wesentlichen einen gleichen Wärmeausdehnungskoeffizienten aufweisen, wobei die dritte und vierte Linse (300, 400) eingerichtet sind, um als athermisches Linsenpaar zur Vermeidung einer Verschiebung des gemeinsamen Brennpunktes bei unterschiedlichen Temperaturen zusammenzuwirken.

    렌즈 어셈블리 및 그를 포함하는 전자 장치

    公开(公告)号:WO2022270734A1

    公开(公告)日:2022-12-29

    申请号:PCT/KR2022/005664

    申请日:2022-04-20

    Abstract: 본 문서에 개시된 다양한 실시예에 따르면, 렌즈 어셈블리는, 이미지 센서, 피사체 측으로부터 상기 이미지 센서 측으로 광축을 따라 순차적으로 배열된 적어도 4매의 렌즈들, 및 800~1000nm 파장 영역의 빛 중 적어도 일부에 대하여 90% 이상 98% 이하의 투과율을 가진 적어도 하나의 대역 통과 필터(band pass filter)를 포함하고, 상기 렌즈들 중 적어도 하나가 상기 대역 통과 필터와 상기 이미지 센서 사이에 배치되고, 400~700nm 파장 영역의 빛에 대하여, 상기 렌즈들 중 적어도 하나는 0% 이상 10% 이하의 투과율을 가지면서, 상기 렌즈들 전체는 0% 이상 5% 이하의 평균 투과율을 가지며, 상기 대역 통과 필터 중 상기 이미지 센서로부터 가장 멀리 위치된 필터의 피사체 측 면(object side surface)으로부터 상기 이미지 센서의 결상면(image surface)까지의 거리 'POS'와, 상기 렌즈들 중 피사체 측에 가장 가까운 제1 렌즈의 피사체 측 면으로부터 결상면까지의 거리 'TTL'은, 조건식1 "0.35

    차량용 광학계 및 카메라 모듈
    4.
    发明申请

    公开(公告)号:WO2022035213A1

    公开(公告)日:2022-02-17

    申请号:PCT/KR2021/010643

    申请日:2021-08-11

    Inventor: 정재욱

    Abstract: 발명의 실시예에 개시된 차량용 광학계는 물체측에서 상측 방향으로 광축을 따라 제1렌즈 내지 제4렌즈의 순으로 적층되며, 조리개는 제2렌즈와 제3렌즈 사이의 외측 둘레에 배치되며, 상기 제1렌즈는 물체측 제1면과 상측 제2면을 포함하며, 상기 제2렌즈는 물체측 제3면과 상측 제4면을 포함하며, 상기 제3렌즈는 물체측 제5면과 상측 제6면을 포함하며, 상기 조리개를 기준으로 상측에 배치되는 제3렌즈는 광축 상에서 물체측 제5면과 상측 제6면이 볼록하며, 광축 상에서 상기 제1렌즈의 제1면은 물체측으로 볼록하며, 상기 제3렌즈는 정의 굴절력을 가지며, 상기 제1렌즈에서 제4렌즈 중 어느 하나는 유리 재질이며, 다른 적어도 하나는 플라스틱 재질일 수 있다.

    红外成像镜头
    5.
    发明申请
    红外成像镜头 审中-公开

    公开(公告)号:WO2022000824A1

    公开(公告)日:2022-01-06

    申请号:PCT/CN2020/117245

    申请日:2020-09-23

    Abstract: 一种红外成像镜头(110),包括从物方到像方依次设置的光阑(115)、第一、第二、第三和第四透镜(111,112,113,114)。第一、第二和第三透镜(111,112,113)为正光焦度的透镜,第四透镜(114)为负光焦度的透镜。第一透镜(111)在靠近物面一侧的近轴区域为凸面,且在靠近像面一侧的近轴区域为凹面;第二透镜(112)在靠近物面一侧的近轴区域为凸面;第三透镜(113)在靠近物面一侧的近轴区域为凸面;第四透镜(114)在靠近物面一侧的近轴区域为凸面,且在靠近像面一侧的近轴区域为凹面。每个透镜(111,112,113,114)的两个面中至少有一个为非球面。这种镜头(110)满足:0

    LENS ASSEMBLY AND ELECTRONIC DEVICE INCLUDING THE SAME

    公开(公告)号:WO2020116922A1

    公开(公告)日:2020-06-11

    申请号:PCT/KR2019/016979

    申请日:2019-12-05

    Abstract: According to an embodiments, a lens assembly or an electronic device including the same may include: a first lens having positive refractive power; a second lens having positive refractive power; a third lens having positive or negative refractive power; and a fourth lens having positive or negative refractive power. The first lens, the second lens, the third lens, and the fourth lens may be sequentially arranged from a subject to an image sensor along an optical axis, and the sum of Abbe numbers of the first lens, the second lens, the third lens, and the fourth lens may satisfy Conditional Expression 1 as follows: 20

    摄像镜头
    7.
    发明申请
    摄像镜头 审中-公开

    公开(公告)号:WO2019052145A1

    公开(公告)日:2019-03-21

    申请号:PCT/CN2018/080108

    申请日:2018-03-23

    Inventor: 黄林

    CPC classification number: G02B9/58 G02B13/004 G02B13/06

    Abstract: 一种摄像镜头,沿光轴由物侧至像侧依序包括:第一透镜(L1)、第二透镜(L2)、第三透镜(L3)和第四透镜(L4)。第一透镜(L1)具有负光焦度;第三透镜(L3)具有正光焦度;第二透镜(L2)和第四透镜(L4)均具有光焦度;第三透镜(L3)的物侧面(S5)为凸面,第四透镜(L4)的像侧面(S8)为凹面,第三透镜(L3)物侧面(S5)的曲率半径R5与第四透镜(L4)像侧面(S8)的曲率半径R8满足0.7<R5/R8<1.2。

    CUSTOMIZED DEPTH OF FIELD OPTICAL SYSTEM AND COMPACT FAST LENS ARCHITECTURE
    8.
    发明申请
    CUSTOMIZED DEPTH OF FIELD OPTICAL SYSTEM AND COMPACT FAST LENS ARCHITECTURE 审中-公开
    定制深度的现场光学系统和紧凑的快速镜头架构

    公开(公告)号:WO2009061519A1

    公开(公告)日:2009-05-14

    申请号:PCT/US2008/012670

    申请日:2008-11-07

    CPC classification number: G02B13/18 G02B9/12 G02B9/34 G02B13/0035 G02B13/004

    Abstract: A fixed optical unit (200) includes one or more fixed optical elements (202). The optical unit has a modulation transfer function (MTF), for a given object distance and a given spatial frequency associated with an imaging surface of an image sensor disposed at a selected distance from the fixed optical unit, which varies with object distance such that the MTF is at a maximum at a selected image distance, decreases from about the maximum MTF to below a predefined threshold value within a first range of positive focus shifts corresponding to image distances less than the selected object distance, and decreases from about the maximum MTF but remains above the predefined threshold value over a second range of negative focus shifts corresponding to image distances greater than the selected object distance. The second range of negative focus shifts is larger than the first range of positive focus shifts.

    Abstract translation: 固定光学单元(200)包括一个或多个固定光学元件(202)。 光学单元具有对于给定物体距离的调制传递函数(MTF)和与设置在距固定光学单元选定距离的图像传感器的成像表面相关联的给定空间频率,该距离随物体距离而变化, MTF在所选择的图像距离处处于最大值,在对应于小于所选对象距离的图像距离的正焦点偏移的第一范围内,从约最大MTF减小到低于预定阈值,并且从约最大MTF减小, 在对应于大于所选对象距离的图像距离的负焦点偏移的第二范围内,保持在预定阈值之上。 负焦点偏移的第二范围大于正焦点偏移的第一范围。

    LENS SYSTEM WITH CORRECTED SECONDARY SPECTRUM
    9.
    发明申请
    LENS SYSTEM WITH CORRECTED SECONDARY SPECTRUM 审中-公开
    具有校正二次光谱的镜头系统

    公开(公告)号:WO2006091181A1

    公开(公告)日:2006-08-31

    申请号:PCT/UA2005/000028

    申请日:2005-07-01

    Applicant: DUPLOV, Roman

    Inventor: DUPLOV, Roman

    CPC classification number: G02B27/0025 G02B13/02

    Abstract: The invention discloses the lens system with corrected secondary spectrum without the use of anomalous dispersion optical glasses. The lens system comprises three widely separated lens components. The front lens component of positive refractive power com­prises at least two lenses. The middle lens component comprises at least two lenses. The rear lens component of positive refractive power comprises at least one lens. In the present invention the correction of secondary spectrum is obtained with the use of the most inexpensive optical glasses. The illustrative designs with the use of ordinary crown (BK7) and flint (F2) glasses are presented. Additionally, the illustrative designs with the use of slightly abnormal dense flint glasses are also presented.

    Abstract translation: 本发明公开了具有校正二次光谱的透镜系统,而不使用异常分散光学眼镜。 透镜系统包括三个广泛分离的透镜部件。 正屈光力的前透镜组件包括至少两个透镜。 中间透镜部件包括至少两个透镜。 正屈光力的后透镜组件包括至少一个透镜。 在本发明中,通过使用最便宜的光学眼镜获得二次光谱的校正。 提出了使用普通冠(BK7)和火石(F2)眼镜的说明性设计。 此外,还提出了使用略微异常致密的火石眼镜的说明性设计。

    INVERSE TRIPLET LENS ASSEMBLIES
    10.
    发明申请
    INVERSE TRIPLET LENS ASSEMBLIES 审中-公开
    反向TRIPLET镜头组件

    公开(公告)号:WO99063379A1

    公开(公告)日:1999-12-09

    申请号:PCT/US1999/012658

    申请日:1999-06-04

    CPC classification number: G02B13/0035 G02B9/12 G02B9/34 G02B13/004 G02B13/04

    Abstract: Objective lenses employing three lens units (U1, U2, U3) having a negative (or weak positive), positive, negative configuration are disclosed. The lenses have a total field coverage of at least 50 degrees with a relative aperture of less than f/5. They employ small lens elements having aspherical surfaces and are designed for mass production, particularly using plastic optical materials. The designs do not exist in an all spherical form because the aberrations, particularly distortion, cannot be sufficiently corrected, but by using a sufficient number of aspherical surfaces, not only can the aberrations be corrected to a higher degree than a conventional aspherized triplet design, but the sensitivity to manufacturing deviations can be minimized. Optionally, the lenses can include a fourth lens unit (U4) which provides an extended exit pupil which is desirable when the lens is used with a digital light sensor.

    Abstract translation: 公开了具有负(或弱正),正负配置的三个透镜单元(U1,U2,U3)的物镜。 透镜具有至少50度的总场覆盖,相对孔径小于f / 5。 它们采用具有非球面的小透镜元件,并且被设计用于批量生产,特别是使用塑料光学材料。 这些设计不是以全球形式存在,因为像差,特别是畸变不能被充分地校正,但是通过使用足够数量的非球面,不仅可以将像差校正到比常规的非球化三重态设计更高的程度, 但是对制造偏差的敏感度可以最小化。 可选地,透镜可以包括提供延伸出射光瞳的第四透镜单元(U4),当透镜与数字光传感器一起使用时,这是理想的。

Patent Agency Ranking