Government of the United States of America, As Represented by the Secretary of Commerce

Other

Scientech Corporation

Paul A Williams

John Henry Lehman

Nathan A Tomlin

Robert A Lee

Alexandra Brae Artusio-Glimpse

Frank Maring

Joshua A Hadler

Daniel Rahn

Michelle Stephens

Anna Katariina Vaskuri

Matthew T Spidell

Ivan Ryger

A gravity-enforced photon momentum radiometer incudes: a magnetic array; a diamagnetic shuttle that levitates above the magnetic array; a mirror on the diamagnetic shuttle that receives laser light and moves the diamagnetic shuttle due to the optical force; a tiltable platform for the magnetic array; a photogate producing gate light that can be blocked by a photo interrupter and that produces a detector signal that provides a position of the diamagnetic shuttle relative to the tiltable platform for determining a position of the diamagnetic shuttle relative to the photogate.

Gravity-enforced photon momentum radiometer and measuring optical power

A non-attenuating meter determines optical energy of laser light in an absence of optical attenuation of the laser light and includes: a recipient mirror that: receives laser light that propagates in a primary propagation direction; produces profile light; transmits the profile light through the recipient mirror along the primary propagation direction; produces first reflected light from the laser light; and reflects the first reflected light along a secondary propagation direction; a profilometer in optical communication with the recipient mirror and that: receives the profile light from the recipient mirror along the primary propagation direction; and produces a profile signal from the profile light; a sensor mirror in optical communication with the recipient mirror and a passer mirror and that: receives the first reflected light from the recipient mirror along the secondary propagation direction; produces, in a tertiary direction, a sensor force from the first reflected light; communicates the sensor force to a force sensor along the tertiary direction; produces a second reflected light from the first reflected light; and reflects the second reflected light in a tertiary propagation direction; the passer mirror in optical communication with the sensor mirror and that: receives, along the tertiary propagation direction, the second reflected light from the sensor mirror; produces pass light from the second reflected light; and reflects the pass light along the primary propagation direction, such that the non-attenuating meter does not attenuate the optical energy of the laser light and does not change the primary propagation direction of the laser light.

Non-attenuating meter for determining optical energy of laser light

A photon momentum sensor includes: a reflector plate that includes: a central disk including a mirror; an annular member; a plurality of spring legs interposed between the central disk and the annular member, such that: the spring legs are interleaved; neighboring spring legs are spaced apart; and the spring legs individually are arranged in an Archimedean spiral that provides orthogonal motion of the central disk relative to the plane of the annular member; and a bias plate disposed opposing the reflector plate such that: the central disk of the reflector plate moves orthogonally to a plane of the bias plate in response to reflection of laser light, and the central disk and the bias plate are arranged spaced apart as a capacitive structure.

Photon momentum sensor

An optical meter includes a force member to receive a force and a reflector disposed on the force member to receive radiation and to communicate a pressure of the radiation to the force member. The reflector includes a reflective surface, and the force member is configured to be displaced in response to receiving the force comprising the pressure. The optical meter is configured to measure a power of the radiation, an energy of the radiation, or a combination thereof based on the pressure. A process for measuring a property of radiation includes receiving radiation by the reflector, reflecting radiation from the reflective surface, communicating a pressure from the reflector to the force member, and displacing the force member.

Optical meter and use of same

A cover for a rain gutter having a front side and cross-pieces. The cover is made from a plurality of single rectangular sheets of material and has a front area integrally connected to a back planar area. The front area has an elongated leg portion integral with and perpendicular to a lower horizontal strip of a curved front portion and extending vertically below the sheet at about a right angle to the lower horizontal portion. The elongated leg portion and the curved front portion extend the length of the sheet, except that the leg portion is partially cut to form feet for resting on the gutter cross-pieces. The feet are bent upward and forward from the leg portion so that when the cover is placed on the rain gutter, the feet hold the leg portion of the gutter cover back from the front side of the gutter so that a covered opening is formed over the gutter. This allows leaves and branches to be kept out of the gutter, but allows capillary flow of water over the curved front portion, through the covered opening, and into the gutter.

Gutter cover

A device for measuring body fluid pressure, such as blood pressure, muscle compartment pressure, and spinal column pressure, is herein described. An invasive implement is inserted into a body area, and a fluid path extends from the body area into a fluid channel in the device. A valve is used to control the flow of fluid through the device and a pressure sensor is placed adjacent to the fluid channel, with the pressure sensor and/or a sealant gel forming a portion of the fluid channel. With the valve closed, pressure builds in the fluid channel and the pressure sensor detects the resulting pressure, and a pressure transducer and supporting electronics converts and communicates the pressure measurement. With this device the pressure sensor can detect pressure without contacting the fluid, so therefore a pressure can be taken with a minimum of fluid extraction. If fluid extraction is desired, the valve is opened and fluid flows from the body area to a fluid port where the fluid may be collected.

Growing community of inventors

Erie, CO, United States of America

Paul A Williams