GETTER VACUUM PUMP TO MAINTAIN VACUUM PRESSURE WITHIN A HOUSING OF A FABRY-PEROT CAVITY

    公开(公告)号:US20240142764A1

    公开(公告)日:2024-05-02

    申请号:US18493550

    申请日:2023-10-24

    CPC classification number: G02B26/001

    Abstract: Methods and systems for controlling and maintaining the pressure in an ultra-stable optical resonance cavity are disclosed herein. A method for controlling and maintaining the pressure in an ultra-stable optical resonance cavity, for example, comprises providing an ultra-stable optical system housed in a vacuum housing enclosure and a pumping system in communication with the vacuum housing for maintaining a pressure in the vacuum housing less than 1×10−6 Torr. The pumping system may comprise combination pumping achieved with the simultaneous use of a getter pump and an ion pump that provide passive and active pumping, respectively. The pumping system may also comprise passive pumping only with a getter vacuum pump only. The present invention, disclosed herein, achieves passive, power-free pumping in ultra-stable laser systems thereby enhancing the portability of such systems.

    Resonance apparatus, power transmission apparatus, and power transmission method to improve noncontact power transmission

    公开(公告)号:US11095339B2

    公开(公告)日:2021-08-17

    申请号:US16988952

    申请日:2020-08-10

    Inventor: Yasuo Ohno

    Abstract: Other resonators similar in shape to itself, with a partially open structure of a closed curve line, arranged opposite itself. A closed-curve line is formed between the resonator, which uses electromagnetic coupling to transfer high-frequency power in a non-contact manner, and the drive unit causes the resonator to rotate in the circumferential direction of the resonator in the plane of the Transfer of high-frequency power between a resonator and another resonator at multiple locations where the angles in the circumferential direction are different from each other and transmitted from one resonator to the other that is detected at each position of the resonator. Control to set the angle at which this transfer of high-frequency power is carried out based on the power value of the high-frequency power that was set. A resonance device comprising a part.

    Semi-automated ophthalmic photocoagulation method and apparatus

    公开(公告)号:US10925768B2

    公开(公告)日:2021-02-23

    申请号:US16529221

    申请日:2019-08-01

    Abstract: An ophthalmic treatment system and method for performing therapy on target tissue in a patient's eye. A delivery system delivers treatment light to the patient's eye and a camera captures a live image of the patient's eye. Control electronics control the delivery system, register a pre-treatment image of the patient's eye to the camera's live image (where the pre-treatment image includes a treatment template that identifies target tissue within the patient's eye), and verify whether or not the delivery system is aligned to the target tissue defined by the treatment template. The control electronics control the delivery system to project the treatment light onto the patient's eye in response to both an activation of a trigger device and the verification that the delivery system is aligned to the target tissue, as well as adjust delivery system alignment to track eye movement.

    Electromechanical limited rotation rotary actuator and method employing segmented coils

    公开(公告)号:US10734857B2

    公开(公告)日:2020-08-04

    申请号:US16357691

    申请日:2019-03-19

    Abstract: An electromechanical rotary actuator includes a stator having teeth extending inwardly from an inner wall surface, wherein free ends of each tooth form an aperture dimensioned for receiving a rotor, the free ends forming a gap therebetween. A segmented set of electrical coils extends around each tooth, wherein each coil of the segmented set has a thickness sufficient for passing through the gap between the first and second teeth. Electrically insulating tabs extend into an opening around each tooth carrying the segmented set of coils. The tabs maintain each of the coils within the segmented set in a spaced relation to the stator. When fabricating the actuator, each of the coils are fabricated and individually placed around a tooth with each coil having a thickness and breadth for optimally packing the stator.

    SEMICONDUCTOR DEVICE
    8.
    发明申请

    公开(公告)号:US20200177095A1

    公开(公告)日:2020-06-04

    申请号:US16634195

    申请日:2018-07-27

    Abstract: This semiconductor device is provided with: a substrate which has, on a principal surface thereof, an input unit for inputting an alternating current power from the exterior, a ground connection unit for connecting to ground formed on the exterior, an output unit for outputting a post-adjustment direct current power to the exterior, and a semiconductor layer; a first Schottky barrier diode formed in a first region of the semiconductor layer so that a cathode electrode is connected to the input unit and so that an anode electrode is connected to the ground connection unit; a second Schottky barrier diode formed in a second region of the semiconductor layer so that a cathode electrode is connected to the output unit and so that an anode electrode is connected to the input unit; and a third Schottky barrier diode formed in a third region of the semiconductor layer so that a cathode electrode is connected to the output unit and so that an anode electrode is connected to the ground connection unit.

    Optical switch and method for treatment of tissue

    公开(公告)号:US20200096714A1

    公开(公告)日:2020-03-26

    申请号:US16655050

    申请日:2019-10-16

    Abstract: An optical switch incorporated in a photomedical system, and a method of treating tissue using the optical switch for creating pulsed light. A light source generates an optical beam. An aperture element includes a light-transmitting portion and a light-blocking portion. An optical element such as a mirror, prism or lens directs the optical beam to the aperture element, wherein the optical element is movable for translating the optical beam across the light-transmitting and light-blocking portions of the aperture element, or changing its angle of incidence through the aperture to produce one or more pulses of light from the optical beam. A lens focuses the one or more pulses of the optical beam onto target tissue. A controller controls the movement of the optical element to produce the one or more pulses of light.

    SEMI-AUTOMATED OPHTHALMIC PHOTOCOAGULATION METHOD AND APPARATUS

    公开(公告)号:US20190350759A1

    公开(公告)日:2019-11-21

    申请号:US16529221

    申请日:2019-08-01

    Abstract: An ophthalmic treatment system and method for performing therapy on target tissue in a patient's eye. A delivery system delivers treatment light to the patient's eye and a camera captures a live image of the patient's eye. Control electronics control the delivery system, register a pre-treatment image of the patient's eye to the camera's live image (where the pre-treatment image includes a treatment template that identifies target tissue within the patient's eye), and verify whether or not the delivery system is aligned to the target tissue defined by the treatment template. The control electronics control the delivery system to project the treatment light onto the patient's eye in response to both an activation of a trigger device and the verification that the delivery system is aligned to the target tissue, as well as adjust delivery system alignment to track eye movement.

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