Abstract:
Wedge-shaped optical reflectors (200 and 202) are used to reflect optical energy. Certain optical energy is incoming toward an area of the chip that is housing the non-photosensitive electronics (212). Wedges are used to reflect that radiation toward the photosensitive electronics (210).
Abstract:
Single component metallocene catalysts for alpha -olefin polymerization are disclosed. Prior art cation metallocene catalysts have required a separate anion co-catalyst like methyl aluminoxane (MAO). However, because the inventive zwitterion ansa metallocene (ZAM) catalysts have a "built-in" anion co-catalyst functionality, the need for a separate anion co-catalyst is eliminated.
Abstract:
An identification system using biometric information of human body parts and a secret sequence code. In particular, a user to be identified enters one fingerprint (100). If there is at least one match, the system asks the user to be identified to complete a sequence code (106) and compares each and every authorized users sequence entry to determine if there is a match (108).
Abstract:
A microgyroscope (10) comprising a silicon, four-leaf clover structure (12) which is suspended by four silicon cantilevers or springs (14) extending between clover (12) and rim (16). The device is electrostatically actuated and capacitively detects Coriolis induced motions of the leaves of the clover leaf structure. In a preferred embodiment, a post (18) is attached through a center (20) of the clover structure (12) in a direction symmetrically perpendicular to both sides of a plane formed by the clover leaves (22a-b). In the case where the post is not symmetric with the plane of the clover structure, the device is usable as an accelerometer. If the post is provided in the shape of a dumb bell or an asymmetric post, the center of gravity is moved out of the plane of the clover leaf structure and a hybrid device is provided. When the clover leaf structure is used without a center mass, it performs as a high Q resonator usable as a sensor of any physical phenomena.
Abstract:
The invention is a corneal topographer (240) based on cornea-scope holography with partially coherent illumination. Corneal topographic measurements can be accomplished at a processing rate higher than the standard video rate of 30 Hz. The corneo-scope measurements can be used in an optic electronic servo (220) to control photo-refractive keratectomy system (200) in real time for an improved accuracy in laser ablation of a corneal surface of the eye (230).
Abstract:
A method and system using shock waves from a shock wave generator (902) to remove small particles from a surface (904). A shock wave produces an abrupt increase in the velocity, the pressure, and the density of the fluid behind the shock wave as it travels. The combination of the high density and the high shear caused by the shock wave on a surface (904) creates a strong drag on particles adhered to the surface (904), thus promoting removal of the particles. This allows non-invasive and efficient cleaning of sufaces (904) and detection/identification of explosives and drugs on surfaces (904) with an associated analyzer system (906, 916, 920, 922).
Abstract:
An infrared, heat sensing catheter (10) particularly useful for identifying potentially fatal arterial plaques in patients with disease of the coronary or other arteries and its use, are detailed. In one embodiment, an infrared fiberoptic system (70) is employed at the tip of the catheter (10) to locate inflamed, heat producing, artherosclerotic plaque, which is at greater risk for rupture, fissure, or ulceration and consequent thrombosis and occlusion of the artery. In another embodiment, a catheter (10) with an infrared detector employed at its tip will likewise locate inflamed heat producing atherosclerotic plaque. The invention may be used to detect abscesses, infection, and cancerous regions by the heat such regions differentially display over the ambient temperature of immediately adjacent tissues. The invention may also be used to detect regions of cooler than ambient tissue in a vessel or organ which indicate cell death, thrombosis, hemorrhage, calcium or cholesterol accumulations or foreign materials.
Abstract:
Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene compounds are of formula (a) where M is Os or Ru; R is hydrogen; R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, and substituted or unsubstituted aryl; X and X are independently selected from any anionic ligand; and L and L are independently selected from any neutral electron donor. The ruthenium and osmium carbene compounds of the present invention may be synthesized using diazo compounds, by neutral electron donor ligand exchange, by cross metathesis, using acetylene, using cumulated olefins, and in a one-pot method using diazo compounds and neutral electron donors. The ruthenium and osmium carbene compounds of the present invention may be used to catalyze olefin metathesis reactions including, but not limited to, ROMP, RCM, depolymerization of unsaturated polymers, synthesis of telechelic polymers, and olefin synthesis.