36 results about "Reflectron" patented technology

The disclosed method that may be used for eye tracking includes measuring, by a controller, a distance to an object (316) based on a combination of polarization information of detected light and time-of-flight information of the detected light, wherein the detected light results from at least one of scattering or reflection of a light beam from the object (316). The disclosed method additionally includes performing, by an artificial reality system that includes the controller, one or more user interaction procedures based on information that includes the measured distance to the object (316). A system includes a laser scanning polarization imager including and a detector system (302) including a plurality of photodetectors 304. Each photodetector (306) includes a polarizer (308) having a particular polarization direction oriented at zero, 45, 90 and 135 degrees. A light source (310) may include a vertical cavity surface emitting laser (VCSEL) to emit a light beam (312). A reflector (314), such as a MEMS scanner, directs the light beam (312) onto the object (316), such as an eye. Light (318), e.g., specular and / or diffusive, is reflected and / or scattered from the object (316) and detected by the detector system (302). A controller measures a distance to the object (316) based on this detected light (318). Additionally, the controller measures position and / or size of one or more regions (320) of the object, such as a pupil and / or cornea.

The invention discloses a flight time mass spectrum electric field structure design parameter optimization method. According to the method, the rapid convergence capability of a particle swarm optimization algorithm and the global jump capability of a simulated annealing algorithm are fused, and the global search capability and stability of optimization in a high-dimensional parameter space are remarkably improved by introducing a dynamic disturbance mechanism and a temperature control function. The method is particularly suitable for parameter optimization of electric field structures such as a reflector region and a multi-section acceleration region in a reflective TOF mass spectrometer, and aims at maximizing mass spectrum resolution or minimizing flight time broadening.

The mass spectrometer includes a storage device and an analyzer. The analyzer includes a mirror, an accelerator that receives ions from the storage device and pulses them onto one of the mirrors, causing the ions to reflect back and forth in a first dimension between the mirrors as the ions drift in the drift dimension, a reflector that reflects the ions in the drift dimension, a detector, and control circuitry that activates the reflector to make multiple passes along the drift dimension and deactivates one of the reflectors so that the ions pass to the detector and can be detected, the timing of the reflector activation and deactivation being such that only ions within a first range of mass-to-charge ratios undergo the same number of passes in the drift dimension at any one time that they are detected by the detector. The control circuitry synchronizes the time of pulses from the storage device with the time of pulses from the ion accelerator so that only ions having a mass-to-charge ratio within the first range are pulsed onto one of the mirrors by the accelerator.

The application relates to a high-performance small ion liquid antenna, which comprises a floor, a resonator arranged on the floor and a radiator arranged on the top of the resonator; the resonator and the radiator are both in a cylindrical structure and are internally communicated to form a containing cavity; ion liquid is arranged in the containing cavity to serve as a radiation source of the liquid antenna; the resonator is in a cylindrical structure or a hollow and inverted circular truncated cone structure; the radiator is multiple, and the multiple radiators are vertically stacked and distributed; the radiator is in an inverted circular truncated cone structure; further comprising a reflector; the reflector is in a cylindrical structure arranged on the floor, and the reflector is arranged outside the resonator and the radiator; further comprising a reflecting film; the reflecting film is arranged on the inner wall of the reflector to reflect electromagnetic waves radiated by the radiator. The application can expand the bandwidth of the antenna in a high frequency band, enhance the radiation performance, and is stable in dielectric performance, large in liquid working range, easy to install and integrate.

A beam splitter (3) splits a laser beam (2) to generate first light (5). An etalon (6) allows part of the first light (5) to pass therethrough and reflects remaining part of the first light (5) by an end surface to generate reflected light (7). A reflector (8) reflects the reflected light (7) to a generate second light (9) and causes the second light to enter the etalon (6). Photodetectors (10,11) respectively receive the first light (5) and the second light (9) having passed through the etalon (6). The first light (5) and the second light (9) are different in incident angle to the etalon (6) and are different in optical path length inside the etalon (6).

Reflector device comprising a detector, and associated method. The invention relates to a reflector device (1) comprising a partially transparent mirror (10) configured to form a reflected beam (21) by reflection of a portion of at least one incident beam (20), and to transmit a portion of the at least one incident beam (20) to form a transmitted beam (22). The reflector device (1) further comprises at least one diffraction grating (14) attached to the mirror (10) and configured to diffract the transmitted beam (22) into at least one diffracted beam (23) of order m, m being non-zero. A detector module (11) is configured to measure a position of the at least one diffracted beam (23) of order m, and from the measurement of said position, to determine an angle (θi) between the mirror (10) and the incident beam (20), so as to determine an orientation state of the mirror (10). Figure for the abstract: Fig. 3A

The application discloses a high-orbit LS dual-frequency full-polarization SAR system based on a ring-shaped reflector antenna, which comprises a dual-frequency radar central control processor, an LS dual-frequency common-aperture full-polarization feed array, a ring-shaped antenna reflector, an L-band full-polarization receiver and an S-band full-polarization receiver. The application has L and S dual-frequency bands and full-polarization ground imaging capability, and dual-frequency band data can be used for ionosphere measurement and ground surface deformation monitoring, thereby improving the application efficiency and competitiveness of the high-orbit SAR system.

The invention relates to a small-signal free radical infrared spectrum detection method. The method comprises the following steps: 1, acting photolysis laser on a precursor molecular beam source to obtain a free radical and precursor mixed beam source; 2, infrared laser and free electron laser act on the free radical and precursor mixed beam source to obtain a semi-excitation mixed ion beam source; 3, after the semi-excitation mixed ion beam source passes through an accelerator, a flight time difference T is formed between precursor ions and free ions in the semi-excitation mixed ion beam source; 4, the ion beam source enters a deflection electric field, a first electrode of the deflection electric field applies a voltage pulse signal set according to the flight time difference T, precursor ions deflect, move and are discharged when the voltage pulse signal exists, and the ion beam source enters a detector after passing through a reflector when the voltage pulse signal does not exist. Deflection, movement and discharge of precursor ions are realized in the deflection electric field, free radical ion signals can be increased, and measurement of small-signal free radical infrared spectrum is realized.

The patent proposes a method for improving the interval resolution of a reflective time-of-flight mass spectrometer. The principle of the invention is to apply a square wave pulse voltage on the reflector bottom plate during the spectrum acquisition process of the reflective time-of-flight mass spectrometer, and change the electric field intensity of the reflection area in the reflector, which can be used to improve the local resolution of the target ion mass range in the reflective time-of-flight mass spectrometer.

Provided is a three-dimensional shaped carbon structure having a nanocarbon structure, the nanocarbon structure including at least one of a petal-shaped structure with flaky carbons fixed into a petal shape, each of the flaky carbons having a graphene skeleton and a thickness of less than 20 nm; and a projected-and-recessed structure formed by an assembly of seed-shaped structures, each of the seed-shaped structures having a size of 1 to 100 nm. The carbon structure has a good formability and an excellent durability in high radiation fields, and is further useful as a reflector of a cold neutron or an extremely cold neutron that can achieve high strengths of the cold neutron and the extremely cold neutron through coherent scattering.

The invention relates to different variants of reflectors (220), which alone or together with a light unit (210) also described form a space-saving high-luminosity system.

A mass spectrometer, the mass spectrometer comprising: an ion accumulation device (14) for accumulating and pulsed output ions (8); the invention relates to a time-of-flight mass analyzer, comprising: an ion mirror (2a, 2b) for reflecting ions; ion accelerators (4) arranged and configured to receive ions from the ion accumulation means and pulse the ions into one of the ion mirrors such that when the ions drift in a drift dimension, the ions reflect back and forth between the ion mirrors in a first dimension; a reflector (12a, 12b) for reflecting the ions in the drift dimension; an ion detector (6) for detecting ions; and a control circuit configured to activate the reflectors to pass the ions multiple times along the drift dimension, and then deactivate one of the reflectors to allow ions to pass to the ion detector and be detected, wherein timing of activation and deactivation of the reflector enables only ions within a first range of mass-to-charge ratios to experience the same number of passes in the drift dimension when the ion detector detects the ions; and wherein a control circuit of the mass spectrometer synchronizes the time when the ion pulses exit the ion accumulation device with the time when the ions are pulsed by the ion accelerator such that only ions having a mass-to-charge ratio within the first range are pulsed by the ion accelerator into the one of the ion mirrors.

A mobile device for heating a rail (12) of a railroad (2) is made up of a heating module (34) comprising at least one heating zone (28) and at least one radiating heat source (46) directed towards the heating zone (28), and of a transport vehicle (16) for transporting the heating module (34). A heating unit (36) of the heating module (34) comprises infrared-radiation electric lamps (42) able to emit radiation that is concentrated in the near-infrared, and which are equipped with a primary reflector (48) oriented in such a way as to reflect the infrared radiation emitted by the radiation source (46) towards the heating zone (28). The heating unit (36) also comprises a secondary reflector (50) having a concave reflective surface surrounding the heating zone (28) and able to return towards the heating zone (28) rays reflected by the rail and that pass between the infrared-radiation electric lamps (42).

Aspects of the present disclosure describe techniques for using a parabolic Cassegrain-type reflector for ablation. For example, a system for ablation loading of a trap is described that includes a reflector having a hole aligned with a loading aperture of the trap, and an atomic source positioned at a focal point of the reflector, where one or more laser beams are reflected from a reflective front side of the reflector and focused on a surface of the atomic source to produce an atomic plume, and the atomic plume once produced passing through the hole in the reflector and through a loading aperture of the trap for loading the trap. A method for ablation loading of a trap within a chamber in a trapped ion system is also described.

The invention is notably directed to an optical sensing device (1) having a layer structure comprising a cavity (40) and a membrane (11) spanning the cavity (40). The membrane (11) includes an aperture (30) to the cavity (40). The device further comprises a plasmonic antenna comprising a pair of opposite antenna elements (17, 17a) patterned on the membrane (11) on opposite lateral sides of the aperture (30). A gap (g) is accordingly defined between the opposite antenna elements, on top of the aperture. This defines a molecular passage extending from the cavity (40), through the aperture (30) and the gap. Interestingly, the device also includes a reflector (35), which is arranged below the aperture. The reflector (35) is configured to reflect electromagnetic radiation onto the gap upon irradiating the plasmonic antenna from a side of the membrane opposite the reflector (35) and focus the reflected electromagnetic radiation onto the gap. The invention is further directed to related devices, apparatuses, and methods for optically sensing analytes, e.g., based on surface-enhanced Raman spectroscopy techniques. The proposed design makes it possible to improve the illumination and photon collection efficiency. The reflection of incident light by the reflector increases the electromagnetic field enhancement in the hot spot region between the antenna elements. Moreover, the reflector collects the photons (e.g., Raman photons) radiated from the molecule and reradiates those photons, ideally into a collimated, parallel beam, which improves the measurement efficiency.

The application discloses a miniaturized compact vertical polarization end-fire microstrip antenna, which comprises an upper layer radiation patch structure, a middle layer dielectric substrate and a lower layer metal ground plate; the upper layer radiation patch structure is composed of a first patch serving as a driver and a second patch serving as a director; the first patch and the second patch are linearly arranged on the upper surface of the dielectric substrate along the end-fire direction and work at the fundamental TM 10 mode or TM 01 mode; the relative dielectric constant of the middle layer dielectric substrate is greater than or equal to 8, so as to shorten the distance between the first patch and the second patch working at the fundamental TM 10 mode or TM 01 mode; the equivalent magnetic current interval distance between the two radiation edges of the respective patches of the first patch and the second patch; the end-fire direction radiation is realized by adjusting the length of the circumscribed rectangle of the first and second patches in the end-fire direction and the coupling gap between the two patches; the application can be directly attached to a metal platform for use without an additional reflector and multiple directors, and has the advantages of compact structure, low profile, easy processing and adaptation to high-speed mobile carrier communication.

Systems and methods are provided for identifying and locating a plurality of reflector markers implanted within a target tissue region within a patient's body. A probe is provided that is activated to transmit electromagnetic signals into the patient's body, receive reflected signals from the patient's body, and in synchronization with transmitting the electromagnetic signals, deliver light pulses into the patient's body. The markers reflector tags modulate reflected signals from the respective markers based on orthogonal code sequences opening and closing respective switches of the markers to modulate the reflective properties of the markers. The probe processes the return signals to separate the reflected signals based at least in part on the code sequences to identify and locate each of the plurality of reflector tags substantially simultaneously.

A PET apparatus includes a detector block including a miniblock including detector crystals, a first detector crystal and a second detector crystal being separated by an inner reflector, the inner reflector having a depth-dependent transparency, a first photosensor configured to detect light from a gamma ray detection event, and a second photosensor configured to detect the light from the gamma ray detection event, a first intensity and a second intensity of the light detected by the first and second photosensor being dependent on the depth-dependent transparency of the inner reflector; and processing circuitry configured to determine, based on the detected first intensity, a first energy, determine, based on the detected second intensity, a second energy, and determine, based on the first energy and the second energy, a depth of interaction (DOI) of the gamma ray detection event.

A hybrid nuclear reactor that is operable to produce a medical isotope includes an ion source operable to produce an ion beam from a gas, a target chamber including a target that interacts with the ion beam to produce neutrons, and an activation cell positioned proximate the target chamber and including a parent material that interacts with the neutrons to produce the medical isotope via a fission reaction. An attenuator is positioned proximate the activation cell and selected to maintain the fission reaction at a subcritical level, a reflector is positioned proximate the target chamber and selected to reflect neutrons toward the activation cell, and a moderator substantially surrounds the activation cell, the attenuator, and the reflector.

To efficiently operate a reflection plate capable of changing a reflection pattern.SOLUTION: A base station device receives, from a control device that controls a reflection plate that reflects a radio wave transmitted from one of a base station device and a terminal device, information indicating a time length from when setting a reflection pattern of the reflection plate is started to when the setting is completed, determines a specific reflection pattern to be set at the reflection plate and a first timing at which setting of the specific reflection pattern should be completed, specifies a second timing that is before the first timing by the time length or second timing that is timing before the timing, and transmits an instruction signal for instructing the control device to set the specific reflection pattern at the second timing.SELECTED DRAWING: Figure 5

To provide infrared reflectors with reduced off-axis color, which may be useful in laminated glass construction, particularly for applications where the glass may be exposed to water.SOLUTION: An infrared reflector 330 including a visible absorbing layer 370 is laminated between a first glass layer 310 and a second glass layer 312 via a first optically clear adhesive layer 320 and a second optically clear adhesive layer 322.SELECTED DRAWING: Figure 3

The invention relates to different variants of reflectors (220), which alone or together with a light unit (210) also described form a space-saving high-luminosity system.

A substrate treating apparatus includes a support configured to support a substrate, a plasma source configured to excite a process gas and generate plasma, a grid assembly disposed to be spaced apart from the support in a first direction perpendicular to a surface of the support, the grid assembly being configured to extract and accelerate ions included in the plasma and generate ion beams, and a reflector disposed to be spaced apart from the grid assembly in the first direction, the reflector having a plurality of reflector holes configured to reflect and convert the ion beams into neutral beams, and a diameter of each of the plurality of reflector holes varies along the first direction.