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| Number | Title | Issue Date |
| 7382542 | High-aperture optical imaging system, particularly for microscopes The invention is directed to a high-aperture optical imaging system, particularly for microscopes, which comprises an objective and a tube lens unit and in which the objective has a magnification of less than or equal to 40× and a numerical aperture of greater than... | 06/03/2008 |
| 7349162 | Immersion microscope objective The invention is directed to an immersion microscope objective. An objective of this kind has an adjusting element, for example, a correction ring, by which it can be adjusted to different immersion media. In an advantageous manner, the objective can also be adjuste... | 03/25/2008 |
| 7310187 | Projection objective, especially for microlithography, and method for adjusting a projection objective A method of adjusting a projection objective permits the projection objective to be adjusted between an immersion configuration and a dry configuration with few interventions in the system, and therefore to be used optionally as an immersion objective or as a dry ob... | 12/18/2007 |
| 7268953 | Apochromatically corrected microscope objective A microscope objective with high aperture, large object field and apochromatic correction in the wavelength range from ultraviolet to infrared. The microscope objective includes, starting from the object level: a first group of lenses with overall positive refractio... | 09/11/2007 |
| 7265920 | Microscope objective and method for manufacturing a microscope objective A microscope objective includes an objective sleeve including a first and a second sub-sleeve. A first lens is received in a first mounting ring, a second lens is received in a second mounting ring, a third lens is received in a third mounting ring, and a fourth len... | 09/04/2007 |
| 7262922 | Immersion microscope objective lens An immersion microscope objective lens includes, in the following order from an object side to an image side, a first lens group having positive refractive power as a whole, including a first lens component composed of a first meniscus lens and a second meniscus len... | 08/28/2007 |
| 7215478 | Immersion objective optical system An objective optical system whose outer diameter is reduced, whose overall length is increased, in which chromatic aberrations are well corrected, and which is suitable for in-vivo examination with a high numerical aperture is realized. There is provided an immersio... | 05/08/2007 |
| 7199938 | Immersion objective lens system for microscope An apochromat immersion objective lens system for microscope which consists, in order from the object side, of a first lens unit composed of a cemented lens component consisting of a plano-convex lens element having a planar surface on the object side and a meniscus... | 04/03/2007 |
| 7184610 | Miniaturized microscope array digital slide scanner An array of microscopes and a method of imaging an object with the array of microscopes. The array includes a plurality of optical elements being individually disposed with respect to a corresponding image plane and configured to image respective sections of an obje... | 02/27/2007 |
| 7133212 | Liquid immersion microscope objective The invention is directed to an immersion microscope objective. This microscope objective contains four lens groups. The first lens group has a focal length of 2.6f–3.1f, where f is the total focal length of the microscope objective. The first lens group contains ... | 11/07/2006 |
| 7106415 | Illumination compensator for curved surface lithography A zero power identical pair of oppositely-oriented meniscus lens elements mounted in the projection light path, serves as curved mask support while compensating for optical anomalies such as beam shift and beam deviations produced by other transparent supports for t... | 09/12/2006 |
| 7046450 | Liquid-immersion objective optical system The invention provides a liquid-immersion objective optical system including a first lens group and a second lens group. The first lens group includes a first lens component having positive refractive power, an object side thereof being a flat surface and a convex s... | 05/16/2006 |
| 7046451 | Immersion microscope objective lens To provide an immersion microscope objective lens capable of making a numerical aperture NA larger than 1.45 even if an ordinary oil is used, the objective lens includes, in order from an object, a first lens group, a second lens group, and a third lens group. The f... | 05/16/2006 |
| 7023622 | Miniature microscope objective lens A miniature microscope objective for a miniature microscope array (MMA) includes preferably at least three or four lenses including from object to image a first positive lens, a second positive lens and a third negative lens. The objective has a numerical aperture (... | 04/04/2006 |
| 6950241 | Miniature microscope objective for an array microscope A miniature microscope objective includes at least three or four miniature lenses including from object to image at least a first positive lens, a second positive lens, and a third lens. The numerical aperture (NA) is greater than 0.4 and no more than approximately ... | 09/27/2005 |
| 6914728 | Optical arrangement for microscope objective This invention relates to a microscope having an infinity-corrected objective and providing a flat field of view. The present invention is an optical arrangement that broadly comprises a first lens element having positive power and comprising at least one lens, a se... | 07/05/2005 |
| RE38465 | Exposure apparatus A projection optical system of the present invention has a first lens group G1 being positive, a second lens group G2 being negative, a third lens group G3 being positive, a fourth lens group G4 being negative, a fifth len... | 03/16/2004 |
| 6639737 | Zoom lens system and projection apparatus using the same A zoom lens system which allows a reduction in size. This zoom lens makes two points at different distances have an optically conjugate relationship, and sequentially includes, from a first conjugate point side at a longer distance to a second conjugate p... | 10/28/2003 |
| 6560036 | Real image type view finder A real image type view finder comprising an objective optical system which has positive refractive power and forms an intermediate image, an image erecting optical system which erects the intermediate image and an eyepiece optical system which leads the i... | 05/06/2003 |
| 6560032 | Liquid immersion lens system and optical apparatus using the same A low magnification liquid immersion objective lens system uses an immersion liquid having a refractive index for the d-line within a range defined by a condition (1) shown below, and has a magnification ଲ and a working distance WDL which satisfy th... | 05/06/2003 |
| 6560033 | Objective lens for microscope An objective lens for a microscope of the invention comprises, in order from an object side: a first lens group comprising a meniscus positive lens with a concave surface facing the object; a second lens group including a cemented lens and having a positi... | 05/06/2003 |
| 6507442 | Objective lens An objective lens includes a first lens unit constructed with a plurality of single lenses, having a negative power as a whole, and a second lens unit constructed with a plurality of single lenses, arranged on the object side of the first lens unit. Each ... | 01/14/2003 |
| 6441966 | Microscope objective lens and microscope using the same A microscope objective lens is constructed with fixed lens units having a numerical aperture NA which is 0.6ࣘNAࣘ0.8 and a magnification ଲ which is 40ࣘଲࣘ63, to observe a sample placed on a sample holding member and covered with a protec... | 08/27/2002 |
| 6339507 | Galileo type stereomicroscope and objective lens thereof A Galileo type stereomicroscope permits an observer to change its eye-level by varying a space between an objective lens and a pair of a focal variable magnification lenses. The Galileo type stereomicroscope satisfies following condition: Z>f0 ... | 01/15/2002 |
| 6327101 | Objective lens for variable viewing depth endoscope A variable viewing depth endoscope comprises, successively from the object side, a first lens group G1 having positive refractive power and a second lens group G2 which has positive refractive power and is movable along the optical a... | 12/04/2001 |
| 6219189 | Objective lens unit for reflective fluorescence and reflective fluorescence microscope having an objective lens unit for reflective fluorescence A particularly constructed objective lens unit is provided for reflective fluorescence that transmits excitation light well, generates little self-fluorescence, and can correct for various aberrations. The objective lens unit has a front lens group closer... | 04/17/2001 |
| 6181480 | Microscope objective A microscope objective that is achromatic, so that deviations in focus do not arise with visible light and ultraviolet light (particularly light in the vicinity of wavelength=266 nm), and which can satisfactorily observe a specimen. The microscope objecti... | 01/30/2001 |
| 6104544 | Exposure apparatus A projection optical system of the present invention has a first lens group G1 being positive, a second lens group G2 being negative, a third lens group G3 being positive, a fourth lens group G4 being negative, ... | 08/15/2000 |
| 6038079 | Sapphire objective system Objective lenses for endoscopes are made substantially of sapphire. The high refractive index of sapphire results in optical components with shallower curvatures, leading to smaller geometric aberrations, and consequently, fewer components are required to... | 03/14/2000 |
| 6008884 | Projection lens system and apparatus A high-performance dioptric reduction projection lens and projection exposure apparatus and projection exposure method using same. The projection lens includes six lens groups and has a positive negative positive negative positive refractive power arrange... | 12/28/1999 |
| 5889617 | Objective lens systems This invention relates to a microscope objective lens system a part of which is immersed in a liquid to observe a sample present in the liquid. Particularly, this invention provides an apochromat-grade microscope objective lens system which can be machine... | 03/30/1999 |
| 5886826 | Microscope objective Provided is a microscope objective including a plurality of meniscus lenses disposed along a predetermined optical axis; a plurality of first doublets aligned along the optical axis and disposed behind the plurality of meniscus lenses; and a plurality of ... | 03/23/1999 |
| 5831770 | Projection optical system and exposure apparatus provided therewith This invention is directed to a bitelecentric projection optical system very well corrected for various distortions, particularly for distortion (including higher-order distortions) as securing a relatively wide exposure area and a large numerical apertur... | 11/03/1998 |
| 5798869 | Immersion-type microscope objective lens An apochromatic, immersion-type microscope objective lens is disclosed, comprising (in order from the object side) a first lens group having positive refractive power, a second lens group having a positive refractive power, and a third lens group having a... | 08/25/1998 |
| 5757552 | Microscope objective lens and a microscope incorporating same A microscope objective, and microscope incorporating same, are disclosed. A representative embodiment of the objective comprises, arranged on an optical axis, a front lens group having positive refractive power disposed on the object side, a rear lens gro... | 05/26/1998 |
| 5739957 | Objective lens system for fluorescence microscopes A semi-apochromatic or apochromatic objective lens system for fluorescence microscopes comprising: a first lens unit which comprises a cemented lens component consisting of a meniscus lens element having a concave surface on the object side and a positive... | 04/14/1998 |
| 5739958 | Microscope objective lens system with correction ring A microscope objective lens system comprising a first lens unit which comprises a positive meniscus lens component having a concave surface on the object side and has a positive refractive power, a second lens unit which comprises a diverging cemented sur... | 04/14/1998 |
| 5708532 | Double-sided telecentric measurement objective A double sided telecentic measurement objective for contactless length measurement in two-dimensional and three-dimensional space. The objective has an image-side optical system consisting of three elements equivalent to those of an object-side optical sy... | 01/13/1998 |
| 5708531 | Objective lens system This invention relates to a microscope objective lens system a part of which is immersed in a liquid to observe a sample present in the liquid. Particularly, this invention provides an apochromat-grade microscope objective lens system which can be machine... | 01/13/1998 |
| 5701196 | Stereomicroscope A stereomicroscope comprising an objective lens system and eyepiece lens systems, the objective lens system comprising at least two lens units, permitting a working distance thereof by varying at least one airspace and having a concave surface at a locati... | 12/23/1997 |
