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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8147076 | Beam-down type solar ray lighting device An object is to provide a solar ray lighting device which is capable of reducing the blocking and the shadowing of beams of light reflected by heliostats and which is capable of fixing firmly and stably a heavy and large-sized center reflector. In a beam-down type s... | 04/03/2012 |
| 7967457 | Control grid for solar energy concentrators and similar equipment This invention provides a manner to achieve affordable solar energy, as well as other technologies. It does so by improving control grids (for addressing and alignment) in solar concentrators and optical equipment in general. Thus troublesome and expensive grid mate... | 06/28/2011 |
| 7866836 | Fresnel solar concentrator array with centered universal pivots This invention deals with novel method and apparatus for positioning and motion control of the optical elements (mirrors and lenses) of a Fresnel solar concentrator tracking array which approximately eliminates gravitational torque by use of a central universal pivo... | 01/11/2011 |
| 7771067 | Conic of rotation (CoR) optical surfaces and systems of matched CoRs An ultracompact, lightweight, reflective telescope is described which has no loss due to central obscuration for a beam being projected from its focus. The optical surfaces are composed of matched conics of rotation. ... | 08/10/2010 |
| 7648248 | Optical energy director using conic of rotation (CoR) optical surfaces and systems of matched CoRs in the claims An ultracompact, lightweight, reflective telescope is described which has no loss due to central obscuration for a beam being projected from its focus. The optical surfaces are composed of matched conics of rotation. ... | 01/19/2010 |
| 7553035 | Method and apparatus for constructing a perfect trough parabolic reflector A coordinate system defines the length of the curve of a parabola used in constructing a parabolic trough reflector. The origin (0,0) of the coordinate system is at the bottom center of the coordinate system. The two upper points of the coordinate system defi... | 06/30/2009 |
| 7410266 | Three-dimensional imaging system for robot vision The present invention provides a three-dimensional imaging system for robot vision, which is capable of three-dimensional positioning of objects, object identification, searching and tracking of an object of interest, and compensating the aberration of the system. T... | 08/12/2008 |
| 7372570 | Incident light redistribution to compensate for radial gradient in detector Nonuniformities in the efficiency of detection of individual fluorescing reaction mixtures in a well plate with a two-dimensional array well array are corrected. The nonuniformities arise both from the stimulation pattern and the detection pattern, and are corrected... | 05/13/2008 |
| 7354167 | Beam focusing and scanning system using micromirror array lens A beam focusing and scanning system using a micromirror array lens (optical system) includes a light source configured to emit light and a micromirror array lens, including at least one micromirror, optically coupled to the light source, configured to reflect the li... | 04/08/2008 |
| 7354168 | Facet mirror having a number of mirror facets A facet mirror (10) is provided with a number of mirror facets (11), in which the mirror facets (11) respectively have a spherical or conical facet body (17) with a reflecting surface (12). The side of the facet body (17) av... | 04/08/2008 |
| 7350922 | Three-dimensional display using variable focal length micromirror array lens A three-dimensional display device includes a two-dimensional display displaying a depthwise image, and a variable focal length micromirror array lens receiving light from the two-dimensional display and forming a corresponding image in the required location in spac... | 04/01/2008 |
| 7324276 | Front projection screens including reflecting and refractive layers of differing spatial frequencies Projection screens include a substrate, a reflective layer on the substrate and a refractive layer on the substrate. The reflective layer includes reflective microstructures of about 5 μm to about 500 μm in size, and arranged in a first pattern to reflect light at... | 01/29/2008 |
| 7281833 | LED vehicle lamp including reflector with paraboloidal sections A vehicle lamp includes a set of alternatively provided first and second reflection surfaces that reflect the light emitted by a first and second respective diodes toward a lamp lens. Each of the first and second reflection surface is a part of a rotational parabolo... | 10/16/2007 |
| 7270431 | Illumination device and its use To provide an illumination beam (5) which is essentially homogeneous in cross-section, in particular for a laser scanning microscope (15), an illumination device is used which provides an original beam which is essentially rotationally symmetric in cro... | 09/18/2007 |
| 7267447 | Variable focal length lens comprising micromirrors A variable focal length lens consists of many micromirrors with degrees of freedom rotation and/or degrees of freedom translation and actuating components. As operating methods for the lens, the actuating components control the positions of micromirrors electrostati... | 09/11/2007 |
| 7252397 | Angle selective reflection sheet An angle selective reflection sheet which is comprised of an angle selective transparent sheet having a characteristic of selectively reflecting light according to an incident angle of incident light to the angle selective transparent sheet, and a reflection layer l... | 08/07/2007 |
| RE39751 | Confocal microscope apparatus and photographing apparatus for confocal microscope A confocal microscope apparatus includes a disk scanner for scanning a specimen with a laser beam, and camera main body for photographing a still image. An exposure time calculation circuit is arranged to generates an exposure time signal for the camera main body. A... | 07/31/2007 |
| 7247790 | Spinning concentrator enhanced solar energy alternating current production Due to an ever growing shortage of conventional energy sources, there is an increasingly intense interest in harnessing solar energy. This invention deals with method and apparatus for the direct conversion of solar energy to alternating current power by an active s... | 07/24/2007 |
| 7239438 | Variable focal length lens and lens array comprising discretely controlled micromirrors A discretely controlled micromirror array lens (DCMAL) consists of many discretely controlled micromirrors (DCMs) and actuating components. The actuating components control the positions of DCMs electrostatically. The optical efficiency of the DCMAL is increased by ... | 07/03/2007 |
| 7234255 | Flame imitation device for wall mounted heater The invention relates to a flame imitation device for a wall-mounted heater. The flame imitation device comprises a light source, a combustion bed including imitated firewood and embers, and a vertical translucent screen located closely adjacent to the back edge of ... | 06/26/2007 |
| 7232232 | Reflector device In a reflecting mirror, a plurality of segmented mirrors are grouped into a plurality of groups of a cluster, and are supported by a plurality of sub mirror cells. The plurality of sub mirror cells are supported by a mirror cell, and all the segmented mirrors are su... | 06/19/2007 |
| 7227685 | Optical film and liquid-crystal display device An optical film has a transparent film and an adhesive layer provided on one surface of the transparent film. The adhesive layer has a refractive index different by 0.12 or less from that of a layer of the one surface of the transparent film. The transparent film ha... | 06/05/2007 |
| 7215882 | High-speed automatic focusing system An automatic focusing system comprises at least one micromirror array lens, an image sensor, and a signal processor. The micromirror array lens images an object and focuses the image on the image sensor. The image sensor receives the light and converts the photo ene... | 05/08/2007 |
| 7188975 | Light fixture for illuminating building surfaces or parts thereof A light fixture is shown and described is for illuminating building surfaces or portions thereof, comprising a generally cup-shaped arcuate reflector (10) having an interior (21) provided with a lamp emitting light at least partially reflected or dispe... | 03/13/2007 |
| 7187490 | Induced dipole alignment of solar concentrator balls The instant invention is concerned with method and apparatus for induced dipole alignment of solar concentrator micro-mirrors. Novel method and apparatus are taught for coupling to, addressing, and alignment of a micro-optics solar concentrator system for single-axi... | 03/06/2007 |
| 7161729 | Array of micromirror array lenses An array of micromirror array lenses is invented. The micromirror array lens consists of many micromirrors and actuating components. Each micromirror array lens is variable focal length lens with high speed focal length change. The lens can have arbitrary type and/o... | 01/09/2007 |
| 7130102 | Dynamic reflection, illumination, and projection This invention deals with the broad general concept for dynamic reflection, illumination and direct image projection. A mini-optics reflection and focussing system is presented that ranges from interior illumination, to exterior illumination, to large scale space ba... | 10/31/2006 |
| 7124705 | Visual parking guide A visual parking guide, more particularly, a thin flat surface, divided into three zones, with a multitude of markings in each zone, to assist drivers of varying heights to park their car in a safe parking position. The visual parking guide is mountable on a support... | 10/24/2006 |
| 7112253 | Manufacturing transparent mirrored mini-balls for solar energy concentration and analogous applications Method and apparatus are presented for manufacturing transparent mirrored spheroidal mini-balls for solar energy and related applications such as optical switches. For these applications it is imperative to provide accurate specular reflection from the mirror. Vario... | 09/26/2006 |
| 7090362 | Facet mirror having a number of mirror facets In a facet mirror with a number of mirror facets, wherein the mirror facets are provided with reflecting surfaces, the mirror facets are mounted jointly in a basic body via bearing devices. The mirror facets comprise mirror bodies contacting at the periphery with th... | 08/15/2006 |
| 7077523 | Three-dimensional display using variable focusing lens A three-dimensional display device includes a two-dimensional display displaying a first image, and a variable focusing lens receiving light from the two-dimensional display and forming a second image. The variable focusing lens reflects light from the two-dimension... | 07/18/2006 |
| 7077361 | Micro-optics concentrator for solar power satellites There is an increasingly intense need to harness solar energy due to an ever growing shortage of conventional energy sources, The instant invention is concerned with method and apparatus for solar concentrator micro-mirrors on solar power satellites and the moon to ... | 07/18/2006 |
| 7073914 | Vehicle exterior rearview mirror assembly A mirror system for a vehicle comprising an exterior rearview mirror assembly, which includes a fixed portion which is configured to mount to a side of the vehicle. The movable portion includes a reflective element and a reflective element actuator. The reflective e... | 07/11/2006 |
| 7057812 | Reflection-type projection screen A projection screen includes a substrate having at least a first surface, a reflective layer having a first surface and an opposing second surface, and diffusion layer having a first surface defined by a matte finish and an opposing second surface. The second surfac... | 06/06/2006 |
| 7050161 | Global radius of curvature estimation and control system for segmented mirrors An apparatus controls positions of plural mirror segments in a segmented mirror with an edge sensor system and a controller. Current mirror segment edge sensor measurements and edge sensor reference measurements are compared with calculated edge sensor bias measurem... | 05/23/2006 |
| 7045278 | Corner cube array and method of making the corner cube array A method of making an array of corner cubes includes the steps of: preparing a substrate, at least a surface portion of which is made of a cubic crystalline material and which has a surface that is substantially parallel to {111} planes of the crystalline material; ... | 05/16/2006 |
| 7034998 | Method of connecting a multiplicity of optical elements to a basic body In a method of connecting a multiplicity of optical elements (9) to a basic body (8), in particular for producing a faceted mirror (1), for example for beam mixing and field imaging for an EUV lighting system, the individual optical elements ( | 04/25/2006 |
| 7023604 | Three dimensional optical switches and beam steering modules A beam steering module comprised of a mirror stack array in close proximity to a collimator array controllably steers photons along two axis and in a direction substantially less than 90 degrees to the collimator orientation. Several configurations of the module are... | 04/04/2006 |
| 7014329 | Parabolic reflector For camping trips and other activities it is useful to have a solar reflector for cooking or electricity generation. It can be made form a flat piece of material and folded into a three dimensional parabolic dish for concentrating solar radiation. The flat disk has ... | 03/21/2006 |
| 7016116 | Three-dimensional display system An image display system provides a viewer with an experience of three dimensional images by presenting a composite image source. The system includes first and second image sources, a beamcombiner, a lens and a reflective element. The reflective elements reflects the... | 03/21/2006 |
