公开(公告)号：EP0809407A1

公开(公告)日：1997-11-26

申请号：EP97108367.0

申请日：1997-05-23

申请人： CORNING INCORPORATED

发明人： Kreitzer, Melvyn H. ,  Moskovich, Jacob

IPC分类号： H04N9/31 ,  G02B13/18 ,  G02B9/12

CPC分类号： G02B13/04 ,  G02B9/12 ,  G02B13/18

摘要： A projection lens for use with LCD or DMD panels is provided. The lens has three lens units, the first unit having a negative power and at least one plastic lens element having two aspheric surfaces, a second lens unit having a negative power or a weak positive power and at least one color correcting doublet, and a third lens unit having a positive power and an aspheric surface either on a glass element or on a weak plastic element. The projection lens has a back focal length to focal length ratio of at least 3.0, the ratio being achieved by arranging the first, second, and third lens units so that: D 12 /f 0 > 1.0, D 23 /f 0 > 0.7, and 1.5 12 + D 23 + BFL)/BFL where: f 0 is the effective focal length of the combination of the first, second, and third lens units; BFL is the back focal length of the combination of the first, second, and third lens units; D 12 is the distance between the first and second lens units; and D 23 is the distance between the second and third lens units.

摘要翻译： 被提供用于与LCD或DMD面板中使用的投影透镜。 该透镜具有三个透镜单元，具有负的放大率与所述第一单元的至少一个具有两个非球面表面，具有负的放大率或弱的正光焦和至少一个颜色校正双合的第二透镜单元和第三塑料透镜元件 具有要么在玻璃元件或弱塑料元件上的正光焦度，在非球面透镜单元。 投影透镜具有后焦距至少3.0，正在实现的比率焦距比通过设置第一，第二和第三透镜单元，使得：$$ $ $ 其中：f0的\; 是第一，第二的组合的有效焦距，和第三透镜单元;\; BFL是第一，第二，和第三透镜单元的组合的后焦距;\; D12是第一和第二透镜单元之间的距离;\; 和D23是第二和第三透镜单元之间的距离。\mathop{\mathrm{image}}$$$$

公开(公告)号：EP0215118A4

公开(公告)日：1988-11-09

申请号：EP86902593

申请日：1986-02-27

申请人： FJW IND INC

发明人： FILIPOVICH DANNY ,  KREITZER MELVYN H ,  BETENSKY ELLIS I

IPC分类号： G02B9/12 ,  G02B23/12 ,  G02B23/16 ,  G02B25/00

CPC分类号： G02B23/125 ,  G02B23/16

摘要： The goggles (20, 120) include a pair of optical assemblies (40, 140) each having two intersecting optical paths, including a see-through path with a large field of view of a straight line of sight to the viewed object, and a folded path which includes an objective lens set (50, 150) an intensifier (60) which converts visible and infrared light to a visible intensified light, and an eyepiece lens set (70, 170) arranged in a loop in a plane perpendicular to the see-through path. Infrared and visible light from the viewed objected enters both paths. A dichroic prism combiner (46, 141) at the intersection of the paths reflects intensified light from the folded path into the see-through path and transmits all other light. In one embodiment a dichroic prism separator (42) is disposed at the intersection of the paths forward of the combiner for transmitting a portion of the incoming visible light along the see-through path and reflecting the remainder of the incoming light to the folded path. In another embodiment, the entrance to the folded path is spaced from the see-through path.

公开(公告)号：EP4451033A1

公开(公告)日：2024-10-23

申请号：EP22907913.2

申请日：2022-12-13

申请人： LG INNOTEK CO., LTD.

发明人： SON, Chang Gyun ,  LIM, Jun Young

IPC分类号： G02B13/00 ,  G02B13/18 ,  G02B9/12 ,  H04N23/00 ,  G03B17/12

摘要： The optical system disclosed in the embodiment includes first to third lenses disposed along an optical axis from an object side toward a sensor side, the optical system satisfies 40° ≤ FOV ≤ 50°, an object-side surface and a sensor-side surface of the first lens are spherical, the first lens has a meniscus shape convex toward the object side, the first lens satisfies: 1.7 ≤ nt_1 ≤ 2.3 and 0.15 ≤ D_1 / TTL ≤ 0.3, TTL satisfies: ≤ 9mm (nt_1 is the refractive index of the first lens, TTL is a distance in the optical axis from an object-side surface of the first lens to an image surface of the image sensor, D_1 is the thickness of the first lens at the optical axis, and FOV is the field of view of the optical system.).

公开(公告)号：EP4152071A1

公开(公告)日：2023-03-22

申请号：EP21207115.3

申请日：2021-11-09

申请人： Altek Biotechnology Corporation

发明人： Lai, Cheng-Yi ,  Chien, Yang-Chang

IPC分类号： G02B9/12 ,  G02B13/00 ,  G02B13/04 ,  G02B13/24 ,  G02B23/24

摘要： An optical imaging lens assembly (20), which is applied for an endoscopic optical device (12), from an object side (Al) to an image side (A2) aligned in order along an optical axis (I) includes a first lens element (26), a second lens element (28) and a third lens element (32). The first lens element (26) has negative refracting power, and further has a first convex object-side surface (261) and a first image-side surface (262). The second lens element (28) has positive refracting power, and further has a second convex object-side surface (281) and a second concave image-side surface (282). The third lens element (32) has positive refracting power, and further has a third convex image-side surface (322) and a third object-side surface (321).

公开(公告)号：EP3543786B1

公开(公告)日：2022-05-18

申请号：EP19168868.8

申请日：2013-04-04

发明人： NISHIO, Tetsuya ,  KONNO, Yoshihiko ,  TOKUNAGA, Tatsuyuki ,  HASEGAWA, Takashi ,  KIKUCHI, Hiroshi ,  SUGAWARA, Azusa

IPC分类号： G03B17/02 ,  G02B9/00 ,  G02B9/04 ,  G02B9/12 ,  G02B9/34 ,  G02B9/60 ,  G02B9/62 ,  G02B9/64 ,  G03B17/14

公开(公告)号：EP2963472B1

公开(公告)日：2021-12-15

申请号：EP15171859.0

申请日：2013-04-04

发明人： HASEGAWA, Takashi ,  TOKUNAGA, Tatsuyuki ,  NISHIO, Tetsuya ,  SUGAWARA, Azusa ,  KIKUCHI, Hiroshi ,  KONNO, Yoshihiko

IPC分类号： G02B9/00 ,  G02B9/04 ,  G02B9/12 ,  G02B9/34 ,  G02B9/60 ,  G02B9/62 ,  G02B9/64 ,  G02B13/00 ,  G03B13/34 ,  H04N5/225 ,  H04N5/232 ,  G03B17/14

公开(公告)号：EP3742214A1

公开(公告)日：2020-11-25

申请号：EP19741742.1

申请日：2019-01-18

申请人： LG Innotek Co., Ltd.

发明人： KIM, Ji Sung ,  JANG, Dae Sik ,  JEONG, Soo Min

IPC分类号： G02B13/00 ,  G02B9/12 ,  H04N5/225 ,  G03B17/12

摘要： An embodiment provides an imaging lens comprising first to third lens groups arranged sequentially from an object side to an image side and having refractive power, wherein the distances of the second lens group and the third lens group from the first lens group are variable such that a tele mode having a narrow angle of view and a wide mode having a wide angle of view can be implemented, the EFL in the tele mode is no more than 2.5 times the EFL in the wide mode, 2 Number

公开(公告)号：EP3650901A1

公开(公告)日：2020-05-13

申请号：EP19216229.5

申请日：2012-09-25

申请人： LG INNOTEK CO. LTD

发明人： KWON, Duk Keun

IPC分类号： G02B11/08 ,  G02B13/18 ,  G02B9/12 ,  G02B13/00

摘要： The present invention relates to an imaging lens comprising a first lens having positive (+) refractive power; a second lens having positive (+) refractive power; and
a third lens having negative (-) refractive power, wherein the first to third lenses are disposed in an ordered way from an object side to an image side, wherein the imaging lens meets a conditional expression of 1.6 ≤ND3

公开(公告)号：EP3581979A1

公开(公告)日：2019-12-18

申请号：EP19179661.4

申请日：2019-06-12

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： ZHANG, Gong

IPC分类号： G02B13/00 ,  G02B26/08 ,  G02B27/64 ,  G02B9/12 ,  H04N5/00

摘要： A camera module, a camera assembly and an electronic device are provided. The camera module includes a casing, a mounting base, a light deflection element, an image sensor and a driving device. The casing has a light inlet. The mounting base is disposed in the casing. The light deflection element is fixed to the mounting base, and configured to deflect an incident light entering through the light inlet. The image sensor is arranged in the casing and configured to sense the defected incident light. The driving device has an arc rail, and is configured to drive the mounting base to rotate around a central axis of the arc rail along the arc rail.

公开(公告)号：EP3058416B1

公开(公告)日：2019-11-20

申请号：EP14854126.1

申请日：2014-10-17

申请人： Light Labs Inc.

发明人： LAROIA, Rajiv

IPC分类号： G02B26/08 ,  G02B9/12 ,  G02B13/18 ,  G03B17/02 ,  H04N5/225 ,  H04N5/232