Class / Patent application number | Description | Number of patent applications / Date published |
359221300 | Bearing or shaft for rotary driver | 12 |
20090231659 | OPTICAL DEFLECTOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An optical deflector includes a rotary body including a polygon mirror; a rotation shaft fixed to the rotary body; a bearing unit rotatably supporting the rotation shaft; and a board to which the bearing unit is fixed. Where P [rpm] is the number of revolutions of the rotary body, l [m] is a distance between a center of gravity of the rotary body and the board, m [kg] is mass of the rotary body, r [m] is a radius of the rotation shaft, E [Pa] is Young's modulus of the rotation shaft, and t [mm] is a thickness of the board, the following inequalities are satisfied: | 09-17-2009 |
20110075235 | Optical Path Control Device - An optical path control device is provided, including a fixed reflective mirror fixed on a first position at a fixed angle for an incident light to be reflected thereon, and a rotatable reflective mirror driven by a driving device and rotated on a fixed axle. A surface of the rotatable reflective mirror is perpendicular to the fixed axle. The axle is disposed at a second position so that a rotating path of the rotatable reflective mirror passes through the incident light reflected on the fixed reflective mirror. A normal line of an incident point of the rotatable reflective mirror where the incident light enters, and a normal line of an incident point of the fixed reflective mirror where the incident light enters generates a predetermined included angle. | 03-31-2011 |
20120206785 | MEMS Device and Methods for Manufacturing and Using Same - A Micro Electro Mechanical Systems (MEMS) device comprising: a rotor, comprising a first plurality of rotor teeth and a second plurality of rotor teeth, formed in at least two layers of silicon-on-insulator (SOI) substrate, wherein each rotor tooth belonging to the first plurality of rotor teeth is formed in a first layer and each rotor tooth of the second plurality of rotor teeth is formed in a second layer; and a stator comprising a first plurality of stator teeth and a second plurality of stator teeth, formed in at least two layers of SOI substrate, wherein each stator tooth belonging to the first plurality of stator teeth is formed in a first layer, and each stator tooth of the second plurality of stator teeth is formed in a second layer. | 08-16-2012 |
20130128329 | DEVICE FOR CONCENTRATING SOLAR RADIATION WITH LONGITUDINAL MIRRORS AND A LONGITUDINAL RECEIVER - A device for concentrating solar radiation ( | 05-23-2013 |
20130201540 | HEAD-UP DISPLAY DEVICE FOR VEHICLE - A HUD device includes a stepper motor, which rotates a reflection mirror for adjusting a display position of a virtual image. The stepper motor has an electric stabilization point and a mechanical stabilization point. A control system controls a drive signal for the stepper motor in response to an adjustment instruction. Pole teeth of a specified phase, which provides a greater magnetic attraction force with the rotor when not powered than by pole teeth of other phase, is set as stabilization pole teeth. The control system continues to apply the drive signal until the target stabilization point is attained even after the adjustment instruction is stopped. The target stabilization point is set to the electric stabilization point, at which the holding torque is provided by the stabilization pole teeth of the specified phase. | 08-08-2013 |
20130201541 | HEAD-UP DISPLAY DEVICE FOR VEHICLE - A HUD device includes a stepper motor, which rotates a reflection mirror for adjusting a display position of a virtual image. The stepper motor has an electric stabilization point and a mechanical stabilization point. A control system controls a drive signal for the stepper motor to change by a step angle at every predetermined period Ts in response to an adjustment instruction inputted from an adjustment switch. The control system continues to apply the drive signal until the electric stabilization point is attained even after the adjustment instruction is stopped to operate the stepper motor in a powered rotation mode. The stepper motor then operates in an inertia rotation mode toward the mechanical stabilization point is attained. | 08-08-2013 |
20130321892 | POSITIONING DEVICE FOR SCANNING A SURFACE - A positioning device for scanning a surface includes a movable element; at least one spring-like element having a resilience element for providing a tunable resilience in at least one direction; wherein the spring-like element is configured to tune the resilience by applying a force onto the resilience element of the at least one spring-like element. | 12-05-2013 |
20140160548 | MULTIDIMENSIONAL ROTARY MOTION APPARATUS MOVING A REFLECTIVE SURFACE AND METHOD OF OPERATING SAME - A rotary motion controller controlling the motion of a mirror in a projection system is described having a mounting element coupled to a support member. A two-axis coupling is provided with at least two input shafts coupled to two drive mechanisms. A channeled portion is provided in a second of the two input shafts through which the support member extends there through and is guided thereby and where the at least one support member is coupled to the first input shafts via an input coupling coupled to and driving the support member and a control input controlling the position of the at least two input shafts. A method of controlling a mirror in an underwater projection system is also provided along with a method of operating a controller for an underwater projection system and a further embodiment for providing movement of a mirror in an underwater projector. | 06-12-2014 |
20140268270 | OPTICAL SCANNER, ACTUATOR, IMAGE DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY - An optical scanner includes: a movable member having a light reflection portion and being configured to swing around a first axis; a frame body configured to swing around a second axis intersecting the first axis; a first shaft connecting the movable member and the frame body; a fixing member; a second shaft connecting the frame body and the fixing member; a first strain detection element disposed at the second shaft and detecting deformation of the second shaft; and a first signal processing unit to which a detection signal of the first strain detection element is input and which outputs a signal based on bending deformation of the second shaft. | 09-18-2014 |
20150022871 | MIRROR DRIVE DEVICE AND DRIVING METHOD THEREOF - In a mirror drive device, a first actuator section and a second actuator section are arranged on both sides of a mirror supporting section that supports a mirror section so as to sandwich the mirror supporting section. The upper electrode of a first actuator section includes a first electrode section and a second electrode section, and an upper electrode of a second actuator section includes a third electrode section and a fourth electrode section. The arrangements of the electrode sections correspond to stress distribution of principal stresses in the piezoelectric body in resonant mode vibration, and in a piezoelectric body portion that corresponds to positions of the first electrode section and the third electrode section and a piezoelectric body portion that corresponds to positions of the second electrode section and the fourth electrode section, stresses in opposite directions to each other are generated. | 01-22-2015 |
20150049375 | COMPACT BEAM DIRECTOR - A beam director includes first and second refractive elements, a reflective surface, and a platform. The reflective surface and the second refractive element are mechanically and optically coupled, and the first refractive element is optically coupled to the second refractive element through the reflective surface. The platform is configured to rotate the reflective surface and the second refractive surface about the optical axis of the first refractive element while maintaining the optical couplings. | 02-19-2015 |
359221400 | Specific shaft material or structure (e.g., ceramic ring) | 1 |
20150316761 | BALL JOINT GIMBAL IMAGING SYSTEM WITH AN OFF-GIMBAL DIRECTIONAL ELECTRO-OPTIC COMPONENT - A ball joint gimbal imaging system includes on-gimbal optics that reimage a front optical aperture to a smaller back optical aperture that moves with the rotation of the inner ball. Reimaging to the smaller back optical aperture may reduce the packaging volume required for the relay optics. Relay optics are configured to relay the back optical aperture to an electro-optic component mounted on the platform, off-gimbal. A relay optics system includes a first two-axis steering element that is positioned and sized to cover the range of motion of the beam from the back optical aperture across the range of gimbal motion. The first two-axis steering element is controlled to steer the optical beam passing through the back optical aperture into a second two-axis steering element that is controlled to tilt the optical beam to align light along the central axis of the electro-optic element substantially with the central axis of the front optical aperture on the inner ball, which is coincident with the gimbal pointing axis. The first steering element may be mounted either on or off-gimbal. The second steering element is mounted off-gimbal on the platform. | 11-05-2015 |