Class 359/657 - Having seven components

Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein the lens comprises seven sections
No. of patents: 39
Last issue date: 07/19/2011

Number	Title	Issue Date
7982961	Dry-type microscope objective lens The present invention offers a dry-type microscope objective lens which has a high NA in the range from low magnification to middle magnification and is lightweight and by which a high-resolution image can be obtained without taking a user time and trouble in observ...	07/19/2011
7706076	Optical system An optical system for arranging between a light source and a field diaphragm in an illumination beam path of a microscope comprises n imaging optical elements with focal lengths fi and Abbe numbers νi (i=1, . . . , n). The following relationsh...	04/27/2010
7333416	Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: \|δSA1/δU\|·\|δU\|+\|δSA2/δT\|·\|δT\|≦0.07...	02/19/2008
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
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
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
7164645	Optical system for optical pickup apparatus An optical system has an expander lens and an objective lens. The following formula is satisfied: W1CM>W2CM, where W1CM is a coma aberration (λrms) of a converged light spot when an off-axial light flux of a wavelength λ (nm) emitt...	01/16/2007
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
7050223	DUV-capable microscope objective with parfocal IR focus A DUV-capable dry objective for microscopes comprises lens groups made of quartz glass, fluorite, and in some cases also lithium fluoride. It possesses a DUV focus for a DUV wavelength region λDUV±Δλ, where Δλ=8 nm, and additionally a parfocal IR fo...	05/23/2006
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
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
7019910	Inspection microscope and objective for an inspection microscope An inspection microscope (1) having a light source (3) that emits light of a first wavelength below 400 nm for illumination of a specimen (13) to be inspected, and having an objective (11) that is composed of multiple optical components a...	03/28/2006
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
6882481	Optical arrangement for high power microobjective An arrangement of lenses for a 100×, oil immersion microscope objective is presented. The new configuration gives a flat field of view with diffraction limited performance over all the field. The new optical arrangement broadly includes eight lens elements includin...	04/19/2005
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
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
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
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
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
5898524	Microscope objective with ball lens and protection plate An objective lens system with protection glass for a microscope and having a numerical aperture of 1.25 and using an immersion oil, having a first, second, third and fourth lens groups, the first lens group being a plano-parallel plate cemented to a hemis...	04/27/1999
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
5886827	Microscope objective lens with separated lens groups An objective lens system having a first and a second lens group that are separated by a gap where a ray bundle between the first and second lens is substantially telecentric and the second lens group has two lens elements that are also separated by a gap....	03/23/1999
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
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
5636058	Microscope objective lens and microscope using the same This invention has as its object to eliminate flare light as a cause of low contrast. A microscope objective lens has, in the following order from the object side, a front group having positive refracting power to convert a beam from an object into a conv...	06/03/1997
5532878	Objective lens system for microscope An objective lens system for a microscope comprises, sequentially from an object side, a first lens group having positive refracting power, a second lens group shiftable in an optical-axis direction and a third lens group. The first lens group has a cemen...	07/02/1996
5530590	Liquid-immersion type objective lens system for microscopes A liquid-immersion type objective lens system for microscopes comprising a first lens unit which comprises a plano-convex lens component or a plano-convex lens component having a cemented surface strongly convex on the image side and a positive lens compo...	06/25/1996
5502596	Immersion microscope objective An apochromat-class immersion microscope objective having a magnification of about 40, a NA of about 1.0, and a satisfactorily flattened image field. The microscope objective includes a first lens unit G1 of positive refractive power which has a cemented ...	03/26/1996
5440422	Method for manufacturing ultraviolet microscope dry objectives and microscope objectives manufactured in accordance with this method A method for the manufacture of quasi-monochromatic microscope dry objectives for a wavelength range from 190 to 360 nanometers proceeds from a basic objective with a specified number of lenses. The basic objective is corrected for a specified wavelength ...	08/08/1995
5274503	High aperture finite conjugate lens system suitable for use as a micro relay lens A high aperture finite conjugate lens suitable for use in applications requiring high numerical aperture on both object and image sides of the lens such as laser thermal printer system....	12/28/1993
5235465	Objective lens system for use within microscope An objective lens system for use within a microscope includes a first to an eleventh lens which are disposed in that order from an object side to an image side with predetermined air spacings therebetween. The first lens in the form of a meniscus is made ...	08/10/1993
5103341	UV-capable dry lens for microscopes An UV-capable dry objective for microscopes in which aperture aberration is corrected, at the same time, both for the visible spectrum and for a selected UV-wavelength. The objective comprises two lens groups separated by an air gap which is varied in siz...	04/07/1992
4588264	Microscope objective lens A microscope objective lens of medium or high magnification having a great working distance and yet having an excellent imaging performance comprises, in succession from the object side, a first lens group of positive refractive power for converting a lig...	05/13/1986
4231637	Seven-component microscope objective A seven-member microscope objective having a numerical aperture of 0.55 providing a magnification of substantially 40X in combination with a telescope objective as described in U.S. Pat. No. 3,355,234 is disclosed....	11/04/1980
4009945	Microscope objective A microscope objective of the strong, dry type wherein the lenses at the object end of the system are particularly small and wherein the curvature of the field is corrected and the image field is flattened by a front lens consisting of a thick meniscus le...	03/01/1977

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Class 359/657 - Having seven components