125results about How to "Compact and light in weight" patented technology

A compact mid-IR laser device utilizes an external cavity to tune the laser. The external cavity may employ a Littrow or Littman cavity arrangement. In the Littrow cavity arrangement, a filter, such as a grating, is rotated to provide wavelength gain medium selectivity. In the Littman cavity arrangement, a reflector is rotated to provide tuning. A quantum cascade laser gain medium provides mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens for both the output lens and the external cavity lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. The compact housing size may be approximately 20 cm×20 cm×20 cm or less. Efficient heat transfer is achieved using a thermoelectric cooler TEC combined with a high thermal conductivity heat spreader onto which the quantum cascade laser gain medium is thermally coupled. The heat spreader not only serves to dissipate heat and conduct same to the TEC, but also serves as an optical platform to secure the optical elements within the housing in a fixed relationship relative on one another. The small diameter aspheric output and external cavity lens each may have a diameter of 10 mm or less and each lens is positioned to provided a collimated beam output from the quantum cascade laser gain medium. The housing is hermetically sealed to provide a rugged, light weight portable MIR laser source.

An apparatus and method for aiding a visually impaired or blind person to detect, identify and avoid objects in the field of vision of the surroundings. The apparatus includes electro-optical devices to detect and identify objects, a control unit, which receives and processes information from the devices and a vocal representation unit to receive instructions from the control unit for purpose of audibly describing the objects to the person in the field of vision, thereby enabling the person to cope and proceed safely in the surroundings. The method for aiding a visually impaired person to detect, identify and objects in the field of vision surroundings includes the steps of receiving visual images of the objects, receiving range information concerning the objects, processing the image information, and audibly describing to the person the objects in the field of vision, thereby enabling the person to cope with, and proceed in his surroundings.

A compact mid-IR laser device utilizes a quantum cascade laser to provide mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. The compact housing size may be approximately 20 cm×20 cm×20 cm or less. Efficient heat transfer is achieved using a thermoelectric cooler TEC combined with a high thermal conductivity heat spreader onto which the quantum cascade laser is thermally coupled.

A medical surgery safety device used in connection with surgical insulting instruments and other operation room medical equipment. The safety device includes one or more remote unit attached to the surgical insulting instruments and the medical equipment and having an accelerometer for detecting a sudden motion of the medical equipment, and a radio frequency signal transmitter for transmitting a radio frequency signal upon detection of such sudden motion. The safety device also includes a base unit attached to a main surgical insulting instrument and having an accelerometer for detecting a sudden motion of the main surgical insulting instrument, and a radio frequency signal receiver for receiving the radio frequency signal from the remote units. The base unit also include a power inlet connected to an external electrical power source and a power outlet for providing electrical power to the surgical insulting instruments. The power to all surgical insulting instruments is interrupted, however, upon either the detection of the sudden motion by the accelerometer of the base unit or the reception of the radio frequency signal from the remote units.

The present invention provides a portable, compact, and light-weight juicer and blender capable of being operated by batteries. For portability, juice is collected in a container placed inside the juicer and blender. For convenience and ease of use, food residue or pulp is expelled through a spout into a bag attached to the spout. The food processor described herein is versatile, portable and easy to use making it an appliance that can be used anywhere.

A cylindrical punch member equipped at the leading end thereof with a hole-punching blade is movably supported on a base frame in a hole-punching direction. A drive means is equipped that applies thrusting force to the punch member; a cam follower member disposed between the base frame and punch member engages a cam means disposed at either the base frame or punch member. An oblique cam surface inclined at a predetermined angle with regard to a hole-punching direction is equipped in cam means to give rotational drive force around an axis of rotation to the punch member that is moved in the hole-punching direction by the drive means. This configuration causes each of a plurality of cylindrical punch members to rotate around their axes of rotation when moved in a hole-punching direction by drive means thereby punching a hole in a sheet with a reduced shear force; the centrifugal force of that punch member rotation causing paper cutting debris to be scattered evenly under the punch member.

A camera system has a rotary mirror type camera assembly including a camera, a mirror for camera arranged in front of the camera, and a mirror rotating mechanism driving the mirror for the camera, a rotary mirror type display apparatus including a monitor displaying an image picked up by the camera, a mirror for monitor arranged in front of the monitor, a finder permitting viewing of the image displayed on the monitor via the mirror for monitor, and a casing rotatable together with the mirror for monitor. The mirror for camera is rotated according to rotation of the casing and the mirror for monitor being fixed to the casing. When the casing is rotated, the mirror for monitor is rotated in display direction of the monitor in front of the monitor.

A portable reading light has a telescoping arm that is slidable within a housing, the arm having a light source at the end thereof which has one or more light emitting diodes which provide bright light, low power consumption and durability. The light emitting diodes preferably are located in an articulatable light support and disposed adjacent to a focusing lens to better direct and shape the light onto a surface. The arm is mounted to a base assembly slidable within the housing and being telescopically expandable for stabilizing the arm when set for use.

A compact mid-IR laser device utilizes a quantum cascade laser to provide mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. The compact housing size may be approximately 20 cm×20 cm×20 cm or less. Efficient heat transfer is achieved using a thermoelectric cooler TEC combined with a high thermal conductivity heat spreader onto which the quantum cascade laser is thermally coupled. The heat spreader not only serves to dissipate heat and conduct same to the TEC, but also serves as an optical platform to secure the optical elements within the housing in a fixed relationship relative on one another. A small diameter aspheric lens may have a diameter of 10 mm or less and is positioned to provided a collimated beam output from the quantum cascade laser. The housing is hermetically sealed to provide a rugged, light weight portable MIR laser source.

A door support and drive mechanism for a door can be mounted either over or in a door opening in a transit vehicle or other structure. The mechanism includes a tube which has a longitudinal slot. The mechanism also has mounts attached to the tube for mounting the mechanism to the structure over the door opening, so that the tube is substantially horizontal and the slot is along a lower portion of the tube. The mechanism includes at least one door hanger which has an upper portion movably disposed within the tube and a depending portion passing through the slot, the depending portion being for attachment to the door. The mechanism has a drive nut attached to the door hanger. A drive screw is positioned in the tube, engaging a threaded inner portion of the drive nut. The drive screw is connectable to a rotary power device to be rotated thereby. Rotation of the drive screw causes longitudinal movement of the drive nut and the hanger to which the drive nut is attached, so that the door is moved longitudinally.

An elongated bumper core of a polyolefin-based resin-containing foam having a density of 0.045-0.2 g/cm³ and showing a compressive load of F₂₀ at 20% strain, a compressive load of F₄₀ at 40% strain and a compressive load of F₆₀ at 60% strain when compressed by a rigid pipe having an outer diameter of 70 mm at a compression speed of 500 mm/minute, wherein the ratio F₂₀/F₄₀ is in the range of 0.6-1.3 and the ratio F₆₀/F₄₀ is in the range of 0.75-1.3.

An apparatus for destroying mosquitoes by luring them into the apparatus where they are killed and their remains are incinerated. In order to lure the mosquitoes to the apparatus a mixture is emitted that attracts mosquitoes. The mixture contains a chemical attractant for mosquitoes that is stored in a container and metered out automatically. The mixture also contains carbon dioxide that is produced by the incineration of the mosquitoes and the chemical attractant. The apparatus includes an electric heater that heats the apparatus so that its skin temperature approximates the temperature of human skin. Once the mosquitoes are within the apparatus, a high velocity stream of recirculated air captures and carries them to a fan where they are killed and shredded. The shredded remains are incinerated to produce the carbon dioxide and to avoid the disposal of captured mosquitoes. Only a small portion of the recirculated air is emitted to the atmosphere thereby minimizing the consumption of electrical energy.

A side thruster valve of an aerospace craft is improved to reduce torque of a servo-motor, etc. needed for nozzle opening and closing to thereby realize a compact and light weight device. The side thruster valve comprises a valve plug having its back directed to an axis of the aerospace craft and independently movable between a fully opened position and a fully closed position of the valve plug in a plane orthogonal to the axis of the aerospace craft, an actuating means for moving the valve plug in an axial direction of the valve plug and an elastic member for activating the valve plug in the axial direction of the valve plug. In a side thruster device comprising a plurality of the side thruster valves, the side thruster valves are arranged independently of each other to thereby broaden freedom of combustion control and improve fuel consumption.

Power swivel for transmitting electrical power from a first terminal to a second terminal, includes a central part with a hub and an outer ring of a magnetic material, coaxial with and surrounding the hub, the outer ring and central part being rotatable relative to one another around a vertical axis, at least two radial arms of a magnetic material projecting from the hub or from the outer ring, adjacent arms being spaced-apart, each arm carrying a conductor wound around the arm to form a coil for generating a magnetic flux along a radial flux path through the arm, the conductors being connected to the first terminal, wherein the outer ring or the hub has a cylindrical surface at close proximity to free ends of the arms, a plurality of axially extending conductors being distributed along the circumference of the outer ring or hub at or near the cylindrical surface.

A battery changing system having a battery chamber housing a first battery connected to a circuit, and receives a second, replacement battery which becomes connected to the circuit and displaces the first battery from the battery chamber as the second battery is being inserted, maintaining continuity of power to the circuit. Embodiments include a system which displaces the battery from the same side or opening in which the replacement battery is inserted, and a system which displaces the battery from another opening in the battery chamber.

According to the present invention, there is provided a hearing aid insert module comprising a socket module, and a substantially closed-loop frame comprising electrically conductive portions, the closed-loop frame further comprising engaging means adapted to releasably coupling the hearing aid insert module to a faceplate of a hearing aid. The invention is of advantage in that releasable coupling of the faceplate to the socket module via the frame is capable of rendering the insert module easier to manufacture, to user-customize and to repair. The frame is arranged to impart a majority of structural rigidity to the faceplate when inserted therein. Such rigidity is of benefit in that the faceplate is capable in use of applying a flexural component to the frame which could damage the frame if not of sufficiently substantial rigidity.

A portable, closed-loop system of capture, analysis, and feedback uses a headset containing a small unobtrusive camera and a control computer that communicates wirelessly with a wireless network and/or remote platform. The headset may also contain user controls, an audio feedback component, a battery, interconnection circuitry, cables, and connections for an intraoral device. The camera component of the headset captures images during an activity to be analyzed, such as walking or viewing a room, and sends data (e.g., visual data) to the controller. The controller transmits the data to a database on the remote platform that includes software that instantly analyzes the image information represented in the data, then provides immediate feedback to the headset. The controller may independently process the data.