Patent classifications
G02B26/10
Optical device
Provided is an optical device capable of suppressing variations in the range for scanning light. This optical device comprises: a light source that emits a laser beam; a MEMS mirror that scans the laser beam toward a predetermined range; and a diffraction grating that guides the laser beam to the MEMS mirror by guiding the laser beam in a direction corresponding to the wavelength thereof. The optical device also comprises an MEMS control unit that performs control such that, by employing a change in the optical path of the laser beam caused through the diffraction grating by a change in the wavelength of the laser beam, variations in the scanning range of the laser beam by the MEMS mirror are suppressed.
OPTOELECTRONIC COMPONENT COMPRISING, ON A SINGLE SUBSTRATE, AN OPTICAL TRANSDUCER MADE OF A SEMI-CONDUCTOR MATERIAL III-V AND AN OPTICALLY SCANNING MICROELECTROMECHANICAL SYSTEM
An optoelectronic component includes an optical transducer made of III-V semiconductor material and an optical scanning microelectromechanical system comprising a mirror. The optical transducer and the optical scanning microelectromechanical system are produced on a common wafer comprising at least a first layer made of silicon or silicon nitride with a thickness of less than one micron and wherein at least the mirror and its holding springs are produced. In a first variant, the mobile parts of the optical scanning microelectromechanical system are produced in various layers of silicon. In a second variant, the mobile parts of the optical scanning microelectromechanical system are produced in the layer of III-V semiconductor material.
Dynamic adjustment of micromirror for heads-up display using photochromatic material
Systems, apparatus, computer implemented methods, and computer program products to enhance the operation of a vehicle. A HUD apparatus includes a laser light source to generate laser light to be reflected an optical member, one or more elastically deformable position adjustment members, and one or more UV light sources. The elastically deformable position adjustment members are operable to adjust a spatial orientation of the optical member, and include one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to UV light emitted by the U light source(s). In that way, adjustments in the spatial orientation of the optical member and a change in direction of laser light reflected by the optical member as obtained.
Dynamic adjustment of micromirror for heads-up display using photochromatic material
Systems, apparatus, computer implemented methods, and computer program products to enhance the operation of a vehicle. A HUD apparatus includes a laser light source to generate laser light to be reflected an optical member, one or more elastically deformable position adjustment members, and one or more UV light sources. The elastically deformable position adjustment members are operable to adjust a spatial orientation of the optical member, and include one or more photochromatic regions to facilitate movement of the one or more elastically deformable position adjustment members from a contracted state to an expanded state in response to exposure to UV light emitted by the U light source(s). In that way, adjustments in the spatial orientation of the optical member and a change in direction of laser light reflected by the optical member as obtained.
ACTUATOR AND OPTICAL REFLECTIVE ELEMENT
An actuator that includes: a first driving body that includes a first piezoelectric material that extends in a first axis direction; a second driving body that includes a second piezoelectric material shorter than the first piezoelectric material in the first axis direction; and a base that holds the first driving body and the second driving body at proximal end portions of the first driving body and the second driving body in the first axis direction. The first driving body and the second driving body are aligned and coupled together in a polarization axis direction in a state in which a polarization axis of the first piezoelectric material and a polarization axis of the second piezoelectric material correspond with each other. A length of the second piezoelectric material in a second axis direction is greater than a length of the first piezoelectric material in the second axis direction.
METHOD FOR OPERATING A GEODETIC INSTRUMENT, AND RELATED GEODETIC INSTRUMENT
The present inventive concept relates to a method for operating a geodetic instrument comprising an optical source for assisting a user in aiming at a target in a scene and an imaging device, wherein the imaging device and the optical source share a common optical channel within the geodetic instrument, said method comprising: causing emission, by the optical source, of optical pulses towards the target; causing capture, by the imaging device, of images of the scene using a frame sequence, wherein a frame of said frame sequence includes an exposure time during which the imaging device is exposed to light from the scene; synchronizing emission of the optical pulses to the frame sequence for obtaining data from images in which the optical pulses are absent; and processing the obtained data for surveying said scene.
METHOD FOR OPERATING A GEODETIC INSTRUMENT, AND RELATED GEODETIC INSTRUMENT
The present inventive concept relates to a method for operating a geodetic instrument comprising an optical source for assisting a user in aiming at a target in a scene and an imaging device, wherein the imaging device and the optical source share a common optical channel within the geodetic instrument, said method comprising: causing emission, by the optical source, of optical pulses towards the target; causing capture, by the imaging device, of images of the scene using a frame sequence, wherein a frame of said frame sequence includes an exposure time during which the imaging device is exposed to light from the scene; synchronizing emission of the optical pulses to the frame sequence for obtaining data from images in which the optical pulses are absent; and processing the obtained data for surveying said scene.
Microstructured fiber optic oscillator and waveguide for fiber scanner
Described are optical fibers and scanning fiber displays comprising optical fibers. The disclosed optical fibers include a plurality of mass adjustment regions, such as gas-filled regions, positioned between a central waveguiding element and an outer periphery for reducing a mass of the optical fiber as compared to an optical fiber lacking the plurality of mass adjustment regions.
Drive device and distance measurement apparatus
A drive device (10) includes a support (23), a first movable portion (21), a first magnet (41), a second magnet (42), a first coil (31), and a second coil (32). The first movable portion (21) is swingable in two axial directions with respect to the support (23). The first magnet (41) is positioned inside the first movable portion (21) when viewed from a first direction. The second magnet (42) is positioned outside the first movable portion (21) when viewed from the first direction. Magnetic flux from the first magnet (41) acts on the first coil (31). Magnetic flux from the second magnet (42) acts on the second coil (32).
Drive device and distance measurement apparatus
A drive device (10) includes a support (23), a first movable portion (21), a first magnet (41), a second magnet (42), a first coil (31), and a second coil (32). The first movable portion (21) is swingable in two axial directions with respect to the support (23). The first magnet (41) is positioned inside the first movable portion (21) when viewed from a first direction. The second magnet (42) is positioned outside the first movable portion (21) when viewed from the first direction. Magnetic flux from the first magnet (41) acts on the first coil (31). Magnetic flux from the second magnet (42) acts on the second coil (32).