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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8085466 | Optical system of light gathering using orthogonal compressions to form large diameter, shallow depth telescopes Optical system for a telescope having independent optical arms adapted to collect light rays over a first cross sectional area and compress it into a second cross sectional area less than the first cross sectional area. Orthogonal mirror pairs of parabolic trough mi... | 12/27/2011 |
| 8023183 | All-reflective wide-field-of-view telescope with beneficial distortion correction A wide-field-of-view (WFOV) optical system includes a negative optical-power primary mirror configured to receive and reflect light from an image scene; a low optical-power secondary mirror configured to receive and reflect light from the primary mirror; a negative ... | 09/20/2011 |
| 8018650 | Imaging optical system The disclosure generally relates to imaging optical systems that include a plurality of mirrors, which image an object field lying in an object plane in an image field lying in an image plane, where at least one of the mirrors has a through-hole for imaging light to... | 09/13/2011 |
| 8004756 | Chromatically corrected catadioptric objective and projection exposure apparatus including the same A catadioptric objective includes a plurality of optical elements arranged along an optical axis to image a pattern from an object field in an object surface of the objective to an image field in an image surface region of the objective at an image-side numerical ap... | 08/23/2011 |
| 7884998 | Catadioptric microscope objective employing immersion liquid for use in broad band microscopy An objective for imaging specimens is disclosed. The objective receives light energy from a light energy source configured to provide light energy in a wavelength range of approximately 480 to 660 nanometers, employs a Mangin mirror arrangement in conjunction with a... | 02/08/2011 |
| 7760425 | Chromatically corrected catadioptric objective and projection exposure apparatus including the same A catadioptric objective includes a plurality of optical elements arranged along an optical axis to image a pattern from an object field in an object surface of the objective to an image field in an image surface region of the objective at an image-side numerical ap... | 07/20/2010 |
| 7719759 | Imaging optical system Provided is a compact and bright imaging optical system having a high resolution. The imaging optical system includes three reflectors composed of a first reflector (1), a second reflector (2), and a third reflector (3) that are arranged in this... | 05/18/2010 |
| 7602548 | Schiefspiegler telescope with three reflecting surfaces A Schiefspiegler telescope with three reflecting surfaces, preferably for observing the earth from space, particularly for imaging radiometers. A novel possibility for realizing a reflector telescope without vignetting which permits a simple construction and a simpl... | 10/13/2009 |
| 7508581 | Catadioptric projection system for 157 nm lithography A photolithography reduction projection catadioptric objective includes a first optical group including an even number of at least four mirrors, and a second at least substantially dioptric optical group more imageward than the first optical group including a number... | 03/24/2009 |
| 7486439 | Projection optical system, exposure apparatus and device fabricating method There is provided a projection optical system for projecting a pattern on an object surface onto an image surface in a reduced size. The projection optical system comprising six reflective surfaces that include, in order of reflecting light from the object surface, ... | 02/03/2009 |
| 7486438 | High-resolution optical imaging systems High-resolution imaging systems are provided. In one embodiment, an imaging system based on a Cassegrain or Schmidt-Cassegrain objective, with coaxial primary and secondary mirrors, is provided with a microdisplacement mechanism acting on the secondary mirror to dis... | 02/03/2009 |
| 7450300 | High resolution objective lens assembly A high resolution objective lens assembly (20, 120, 220, 320) is implemented with refractive lens elements made of modified fused silica for operation at deep ultraviolet (DUV) wavelengths to reduce birefringence-caused image aberrations. The high resolution ... | 11/11/2008 |
| 7450301 | Reflective projection lens for EUV-photolithography A projection lens for imaging a pattern arranged in an object plane onto an image plane using electromagnetic radiation from the extreme-ultraviolet (EUV) spectral region has several imaging mirrors between its object plane and image plane that define an optical axi... | 11/11/2008 |
| 7426076 | Projection system for a lithographic apparatus A projection system for a lithographic apparatus having a plurality of mirror imaging systems. In an embodiment, the mirror imaging systems are arranged in two rows with each row being perpendicular to a scanning direction of the projection system. Each mirror imagi... | 09/16/2008 |
| 7417793 | Structure for supporting an optical telescope An apparatus for the focusing of incident light includes a base assembly that is adapted to support a primary mirror. The primary mirror includes an outside circumference and an inside aperture. An upright member is attached to the base assembly at a first end there... | 08/26/2008 |
| 7414781 | Catoptric objectives and systems using catoptric objectives In general, in a first aspect, the invention features a system that includes a microlithography projection optical system. The microlithography projection optical system includes a plurality of elements arranged so that during operation the plurality of elements ima... | 08/19/2008 |
| 7408703 | Wide-angle imaging optical system and wide-angle imaging apparatus surveillance imaging apparatus vehicle-mounted imaging apparatus and projection apparatus using the wide-angle imaging optical system A wide-angle imaging optical system includes a refractive optical system (3), a reflective optical system, and an image-forming optical system (5). The reflective optical system includes a first reflection surface (1) that directly reflects rays... | 08/05/2008 |
| 7385755 | Adjustable mirror An adjustable mirror includes first and second fluids in contact over a meniscus extending transverse an optical axis. The fluids are substantially immiscible and have different indices of refraction. A reflective surface extends transverse the optical axis. A menis... | 06/10/2008 |
| 7370977 | Optical projection system and image display device having the same An optical projection system which creates pincushion distortion of an image and then creates a barrel distortion of the pincushion-distorted image to compensate for the pincushion distortion and then projects an enlarged image without substantial distortion onto an... | 05/13/2008 |
| 7355678 | Projection system for EUV lithography An EUV optical projection system includes at least six reflecting surfaces for imaging an object (OB) on an image (IM). The system is preferably configured to form an intermediate image (IMI) along an optical path from the object (OB) to the image (IM) between a sec... | 04/08/2008 |
| 7344282 | Optical sheet and backlight assembly of liquid crystal display with the same An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof. ... | 03/18/2008 |
| 7329886 | EUV illumination system having a plurality of light sources for illuminating an optical element There is provided an illumination system. The illumination system includes a first light source and a second light source, each of which are for providing light having a wavelength ≦193 nm, and an optical element. The first light source illuminates a first area of... | 02/12/2008 |
| 7324269 | Projection optical system, exposure apparatus and device fabricating method A projection optical system is provided for projecting a pattern on an object plane onto an image plane in a reduced size. The projection optical system has six reflective surfaces that include, in order of reflecting light from the object plane, a first reflective ... | 01/29/2008 |
| 7319509 | Attenuator for attenuating wavelengths unequal to a used wavelength There is provided an attenuator for attenuating electromagnetic radiation of wavelengths Unequal to a used wavelength, including a grating element having i) grating grooves that produce a grating period (p), and ii) a grating plane. The grating period (p) is least a... | 01/15/2008 |
| 7319556 | Wide field of view telescope A wide field of view telescope having two concave and two convex reflective surfaces, each with an aspheric surface contour, has a flat focal plane array. Each of the primary, secondary, tertiary, and quaternary reflective surfaces are rotationally symmetric about t... | 01/15/2008 |
| 7317530 | Combined spatial filter and relay systems Low aberration relay systems modified to perform as spatial filters in reflectometer, spectrophotometer, ellipsometer, polarimeter and the like systems. ... | 01/08/2008 |
| 7315352 | Offner imaging system with reduced-diameter reflectors A projection optical system for digital lithography. The system includes an Offner imaging system defining an optical axis and having a well-corrected region. The system also includes spatial light modulators circumferentially arranged about the optical axis, such t... | 01/01/2008 |
| 7310184 | Cylindrical body of a Newton reflective telescope A cylindrical body of a Newton reflective telescope includes a first cylindrical body and a second cylindrical body combined together. The first cylindrical body has an eyepiece fixed on an outer surface, and a reflective mirror fixed in its interior. A joint member... | 12/18/2007 |
| 7304737 | Rotating or rotatable compensator system providing aberation corrected electromagnetic raadiation to a spot on a sample at multiple angles of a incidence Spectroscopic ellipsometer systems which include polarizer and analyzer elements which remain fixed in position during data acquisition while at least one continuously rotating or step-wise rotatable compensator imposes a continuously variable or plurality of sequen... | 12/04/2007 |
| 7304792 | System for sequentially providing aberation corrected electromagnetic radiation to a spot on a sample at multiple angles of incidence A system for sequentially providing electromagnetic radiation to a spot on a sample at different angles of incidence, and after reflection therefrom into a detector. The system includes a plurality of spherical mirrors, and a refractive element for correcting aberra... | 12/04/2007 |
| 7298548 | Multi-directional viewing and imaging A solution for directing electromagnetic radiation, such as visible light, from multiple fields of view in differing directions to a single view point is provided. The radiation received from one or more fields of view is directed onto a first reflective surface, th... | 11/20/2007 |
| 7293882 | Optical relay An optical relay includes a first lens, a lens module, and a second lens. The first lens is configured to receive modulated light from a first spatial light modulator. The first lens is configured to refract the modulated light into the lens module. The lens module ... | 11/13/2007 |
| 7283203 | Roll printer with decomposed raster scan and X-Y distortion correction A reflecting Offner-like optical system is described which is suitable for use in a photolithographic system in which the magnification is approximately 1 to 1, and where the format is flexible. The primary mirror is split into two halves, which are movable with res... | 10/16/2007 |
| 7274830 | System for multi-sensor image fusion A method and system for fusing image data includes an electronic circuit (L) for synchronizing image frames. An adaptive lookup table unit (302a, 302b) receives the image frame data sets and applies correction factors to individual pixels... | 09/25/2007 |
| 7274507 | Two-mirror telescope with central spider support for the secondary mirror A telescope has a primary light mirror structure including a central base, and a concave primary mirror having a central opening in which the central base is received and extending radially outwardly from the central opening. The concave primary mirror has an inner ... | 09/25/2007 |
| 7271876 | Projection objective for microlithography A projection objective for microlithography for imaging a pattern arranged in the object plane of the projection objective into the image plane of the projection objective has at least one polarization splitter device that is operated only once in transmission or re... | 09/18/2007 |
| 7268956 | Solid catadioptric lens with two viewpoints A dual viewpoint solid catadioptric lens has a first spherical refractive surface S1 having a center C1 located on an optical axis of the lens and having a radius r1, and a second spherical refractive surface S2 having a center C2 ... | 09/11/2007 |
| 7268855 | Projection optical system Disclosed is a projection optical system for projecting a pattern of a mask placed on an object plane, onto a substrate placed on an image plane. The projection optical system is arranged so that an intermediate image of the pattern formed on the mask, is formed bet... | 09/11/2007 |
| 7265829 | Reflective optic system for imaging microplate readers A reflective light imaging system for use in high-throughput screening of samples disposed in multiple-well plates. The system can include a set of mirrors and lenses. The first mirror has a central aperture through which light from the object passes. The first mirr... | 09/04/2007 |
| 7245376 | Combined spatial filter and relay systems in rotating compensator ellipsometer/polarimeter Low aberration relay systems modified to perform as spatial filters in rotating compensator ellipsometer, polarimeter and the like systems. ... | 07/17/2007 |
