公开(公告)号：EP2016455A2

公开(公告)日：2009-01-21

申请号：EP07756019.1

申请日：2007-04-26

申请人： Corning Incorporated

发明人： WEBB, James E

IPC分类号： G02B13/22 ,  G02B27/00

CPC分类号： G02B13/22 ,  G02B7/008 ,  G02B27/0025 ,  G03F7/706

摘要： The application relates to the correction of distortion in a telecentric imaging system by shifting the object plane along the optical axis. The goal is to correct distortion errors caused by environmental influences like changes in temperature or pressure. The design of the imaging system remains sufficiently telecentric so that changes in working distance do not significantly alter magnification. Distortions accompanying magnification corrections can also be corrected.

公开(公告)号：EP1729097A4

公开(公告)日：2008-02-27

申请号：EP05721111

申请日：2005-03-18

申请人： MITUTOYO CORP

发明人： SHIMOMURA TOSHITAKA ,  NIHOMMORI SHINGO ,  MIZUTANI MIYAKO ,  ALTENDORF ERIC HERBERT ,  TOBIASON JOSEPH DANIEL

IPC分类号： G01D5/36 ,  G01D5/347 ,  G02B13/22

CPC分类号： G01D5/38 ,  G01D5/00 ,  G01D5/34715 ,  G01D5/36

摘要： A photoelectric encoder has a telecentric optical system in which a first lens and an aperture located at a focal position of the first lens are interposed between a main scale and a photoreceptor. At least a second lens is interposed between the aperture and the photoreceptor with a focus of the second lens on the aperture, thereby constituting a bilateral telecentric optical system. This makes it possible to improve the signal detection efficiency and increase the assembly tolerance.

公开(公告)号：EP1794569A1

公开(公告)日：2007-06-13

申请号：EP05799673.8

申请日：2005-09-28

申请人： Honeywell International Inc.

发明人： FRITZ, Bernard, S.

IPC分类号： G01N15/14 ,  G02B13/22

CPC分类号： G01N15/1459 ,  G01N2015/1452

摘要： A mechanism for moving and positioning a light source of a flow cytometer so that its light impinges a flow cell as it moves on or off axis of an optical system. A detector receives scattered light at a same position whether the light impinging the target is on or off axis due to a telecentric optical system. Further, the light is positioned so that the detector is maximally impinged with scattered light. A detector output signal goes to a processor that sends a signal to the light source to move the emitted light so as to continually impinge the target as it moves on or off axis. An array of light sources may be used in lieu of the moving light source. To move the light beam, another light at another position in the array may be selected to replace a previously selected light source.

公开(公告)号：EP1418453B1

公开(公告)日：2006-12-20

申请号：EP03024194.7

申请日：2003-10-21

申请人： Carl Zeiss Optronics GmbH

发明人： Achtner, Bertram

IPC分类号： G02B15/15 ,  G02B15/173 ,  G02B15/20 ,  G02B15/26 ,  G02B13/22

CPC分类号： G02B13/22 ,  G02B15/173

公开(公告)号：EP1729097A1

公开(公告)日：2006-12-06

申请号：EP05721111.2

申请日：2005-03-18

申请人： MITUTOYO CORPORATION

发明人： SHIMOMURA, Toshitaka ,  NIHOMMORI, Shingo ,  MIZUTANI, Miyako ,  ALTENDORF, Eric Herbert ,  TOBIASON, Joseph Daniel

IPC分类号： G01D5/36 ,  G02B13/22

CPC分类号： G01D5/38 ,  G01D5/34715 ,  G01D5/36

摘要： A photoelectric encoder has a telecentric optical system in which a first lens and an aperture located at a focal position of the first lens are interposed between a main scale and a photoreceptor. At least a second lens is interposed between the aperture and the photoreceptor with a focus of the second lens on the aperture, thereby constituting a bilateral telecentric optical system. This makes it possible to improve the signal detection efficiency and increase the assembly tolerance.

摘要翻译： 光电编码器具有远心光学系统，其中第一透镜和位于第一透镜的焦点位置处的孔介于主刻度尺和感光体之间。 至少第二透镜被插入孔和感光体之间，第二透镜的焦点在孔上，从而构成双向远心光学系统。 这使得可以提高信号检测效率并增加组装公差。

公开(公告)号：EP0770895B2

公开(公告)日：2006-08-23

申请号：EP95118152.8

申请日：1995-11-17

申请人： NIKON CORPORATION

发明人： Matsuzawa, Hitoshi ,  Suenaga, Yutaka

IPC分类号： G02B13/14 ,  G02B13/26 ,  G03F7/20 ,  G02B13/22 ,  G02B13/24

CPC分类号： G03F7/70241 ,  G02B13/14 ,  G02B13/22

公开(公告)号：EP1352281A4

公开(公告)日：2006-06-14

申请号：EP02717495

申请日：2002-01-16

申请人： 3M INNOVATIVE PROPERTIES CO

发明人： MOSKOVICH JACOB

IPC分类号： G02B13/04 ,  G02B13/16 ,  G02B13/18 ,  G02B13/22

CPC分类号： G02B13/22 ,  G02B13/04 ,  G02B13/16

摘要： Telecentric projecctin lenses for use with pixelized panels (PP) are provided. The projection lenses have a negative first unit (U1) which has at least one negative meniscus element (N1) having at least one aspheric surface and a positive second unit (U2) which has at least one positive element (P1) having at least one aspheric surface. The lens' aperture stop (AS) is located between the two units, and a third lens unit (U3) may be used in the vicinity of the aperture stop to improve the correction of axial color. The lenses have small forward vertex distances, small clear apertures, and long back focal lengths which make them particularly well-suite for use in the manufacture of compact projection systems.

公开(公告)号：EP1055953B1

公开(公告)日：2005-10-05

申请号：EP00110672.3

申请日：2000-05-19

申请人： Jahns, Jürgen, Prof. Dr.

发明人： Jahns, Jürgen, Prof. Dr.

IPC分类号： G02B27/10 ,  G02B27/12 ,  G02B13/22

CPC分类号： G02B27/108 ,  G02B13/22 ,  G02B27/123 ,  H01S3/005

公开(公告)号：EP1273949A3

公开(公告)日：2003-08-13

申请号：EP02013168.6

申请日：2002-06-14

申请人： Mitutoyo Corporation

发明人： Nagahama, Tatsuya, c/o Mitutoyo Corporation ,  Arisawa, Katsuyoshi, c/o Mitutoyo Corporation

IPC分类号： G02B13/22 ,  G02B11/34 ,  G02B9/62 ,  G02B13/00

CPC分类号： G02B13/22

摘要： A double telecentric objective lens having a double telecentric optical system,    wherein said double telecentric optical system comprises: a front group (GF) having a positive refractive power as a whole; and a rear group (GR) having a positive refractive power as a whole,    wherein the rear focus of said front group (G F ) and the front focus of said rear group (G R ) coincide with each other, and a diaphragm is placed at the position where the focuses coincide, wherein said front group (G F ) includes a first unit (G 1 ) formed of a cemented lens composed of a convex lens (L 1 ) and a concave lens (L 2 ), and having a positive refractive power as a whole; and a second unit (G 2 ) including a cemented lens composed of a convex lens (L 3 ) and a concave lens (L 4 ), and a further concave lens (L 5 ), arranged in that order from an object side, and having a positive refractive power as a whole,    wherein said rear group (G R ) includes a third unit (G 3 ) including a concave lens (L 6 ) and a cemented lens composed of a concave lens (L 7 ) and a convex lens (L 8 ), and having a positive refractive power as a whole; and a fourth unit (G 4 ) formed of a cemented lens composed of a concave lens (L 9 ) and a convex lens (L 10 ), and having a positive refractive power as a whole, and    wherein the following conditions are satisfied:n1n-n1p> 0.1ν1p-ν1n > 250.3fF 1p and ν 1p respectively represent the refractive index and the Abbe's number of said convex lens (L 1 ) of said first unit (G 1 ), n 1n and ν 1n respectively represent the refractive index and the Abbe's number of said concave lens (L 2 ) of said first unit (G 1 ), r 2p represents the radius of curvature of that surface of said cemented lens composed of said convex lens (L 3 ) and said concave lens (L 4 ) in said second unit (G 2 ) that is furthermost from the object, r 2n represents the radius of curvature of the object-side surface of said further concave lens (L 5 ) in said second unit (G 2 ), f F represents the focal length of said entire front group (G F ), n 3n represents the average refractive index of said concave lenses (L 6 , L 7 ) in said third unit (G 3 ), and n 3p represents the refractive index of said convex lens (L 8 ) in said third unit (G 3 ), the refractive indices and the focal length being values for the d-line having a wavelength of 587.56 nm.

摘要翻译： 一种具有双重远心光学系统的双重远心物镜，其中所述双重远心光学系统包括：具有整个正屈光力的前组（GF）; 以及作为整体具有正折射力的后组（GR），其中所述前组（GF）的后焦点和所述后组（GR）的前焦点彼此重合，并且将膜片放置在 其中所述前组（GF）包括由由凸透镜（L1）和凹透镜（L2）组成的胶合透镜形成的第一单元（G1），并且具有正的折射力作为整体 ; 以及包括由凸透镜（L3）和凹透镜（L4）组成的胶合透镜的第二单元（G2）和从物体侧依次排列并具有正折射率的另一凹透镜（L5） 其特征在于，所述后组（GR）具有包括凹透镜（L6）和由凹透镜（L7）和凸透镜（L8）构成的胶合透镜的第三单元（G3），并且具有正 屈光力作为一个整体; 以及由凹透镜（L9）和凸透镜（L10）构成的并具有正折射力的整体透镜形成的第四单元（G4），其中满足以下条件： n1n-n1p> 0.1 nu 1p-nu 1n> 25 0.3fF < <0.5fF 1.4 <（r2p / r2n）<2.7 DF NUM =“（5）”> n3n 其中n1p和 nu 1p分别表示所述第一单元（G1）的所述凸透镜（L1）的折射率和阿贝数，n1n和nu1n分别表示所述第一单元（G1）的所述凹透镜（L2）的折射率和阿贝数， （G1）中，r2p表示所述第二单元（G2）中由所述凸透镜（L3）和所述凹透镜构成的所述胶合透镜的所述表面的曲率半径，所述第二单元（G2）最远离所述物体，r2n表示所述半透镜 fF表示所述第二单元（G2）中的所述另一凹透镜（L5）的物体侧表面的曲率 所述整个前组（GF）的焦距，n3n表示所述第三单元（G3）中的所述凹透镜（L6，L7）的平均折射率，n3p表示所述凸透镜（L8）的所述折射率 第三单元（G3），折射率和焦距是波长为587.56nm的d线的值。

公开(公告)号：EP0747743A1

公开(公告)日：1996-12-11

申请号：EP95108559.6

申请日：1995-06-03

申请人： Jos. Schneider Optische Werke Kreuznach GmbH & Co. KG

发明人： Wartmann, Rolf Dr. Diplom-Mathematiker

IPC分类号： G02B13/22

CPC分类号： G02B13/22

摘要： Die Erfindung betrifft ein beidseitig telezentrisches Meßobjektiv für die berührungslose Längenmessung im zwei- und dreidimensionalen Raum.
Das Meßobjektiv besteht aus zwei, im Aufbau gleichen, optischen Teilsystemen, zwischen denen eine Irisblende angeordnet ist. Die beiden Teilsysteme sind zueinander so angeordnet, daß der hintere Brennpunkt des ersten Teilsystems mit dem vorderen Brennpunkt des zweiten Teilsystems zusammenfällt. Der Abbildungsmaßstab des Gesamtsystems ist gleich dem Verhältnis der Brennweiten der Teilsysteme.
Die optischen Teilsysteme bestehen aus jeweils drei Gliedern. Das erste Glied ist ein Kittglied mit positiver Brechkraft und einer streuenden Kittfläche. Das zweite Glied ist eine Sammellinse aus einem hochbrechenden Kronglas und das dritte Glied ist ein streuender Meniskus, wobei der Luftabstand zwischen dem zweiten und dritten Glied des optischen Teilsystems wesentlich größer ist, als der Abstand zwischen dem ersten und zweiten Glied.
Durch den Einsatz derartiger Objektive in automatischen Fertigungslinien wird eine effektive Qualitätskontrolle wesentlich vereinfacht.

摘要翻译： 虹膜过滤器（3）布置在两个光学部件系统（1,2）之间。 相应地，两个系统相对于彼此布置，使得第一部分系统的后焦点与第二部分系统的前焦点重合，使得整个系统的再现度量等于 零件系统。 两个光学部件系统包括三个部件。 第一组件是面向具有正折射力和扩散结合表面的测量透镜的粘结部件（4）。 第二部件是高折射冠状玻璃的收集透镜（5），第三部件是扩散弯液面（6）。