19 results about "Optical pickup" patented technology

The magnetic sensor and optical sensor can be easily positioned so that their respective design positions are correct for the magnet and optical disc, respectively. [Solution] The rotation detection device 1 comprises a substrate 2 having an insertion hole 10 for a rotating shaft 100, a magnetic field forming member 3 that rotates with the rotating shaft 100, a plurality of magnetic sensors 20 arranged around the magnetic field forming member 3, a casing 22 provided on the substrate 2 that houses the plurality of magnetic sensors 20, an optical sensor 6 provided on the substrate 2 on the opposite side from the plurality of magnetic sensors 20, and an optical disk 5 positioned opposite the substrate 2 with the optical sensor 6 in between, which rotates with the rotating shaft 100. The device has an adjustment mechanism that allows the position of the plurality of magnetic sensors 20 relative to the magnetic field forming member 3 to be adjusted by adjusting the position of the casing 22 relative to the substrate 2 while the substrate 2 is positioned by adjusting the position of the optical sensor 6 relative to the optical disk 5.

The automatic stopping device comprises a plurality of pore plate cabins and two rotating wheel discs, a main shaft is fixedly arranged between the two rotating wheel discs, a central transmission shaft is arranged in the main shaft in a penetrating mode and is in transmission connection with the main shaft, and a chain wheel and a belt transmission wheel are installed at the two ends of the central transmission shaft respectively. The roller counting device comprises a first code disc, a first counting rotating wheel is arranged above the first code disc, a first counting sensor is arranged on the side face of the first counting rotating wheel and connected with the first counting rotating wheel, and a first optical sensor is arranged on the side face of the first code disc. The outer side of the first counting rotating wheel is sleeved with a rubber ring, and the rubber ring is in friction transmission with the peripheral surface of the first code disc. The utility model has the advantages of simple structure, strong stability, high precision, and real-time operation state monitoring.

The application discloses a drive mechanism of an optical disc machine and an optical pickup assembly thereof, which is connected between a screw rod of a stepping motor and the optical pickup assembly, and enables the optical pickup assembly to move back and forth along the axial direction of main guide rods and vice guide rods. The drive mechanism comprises a special-shaped bearing connecting piece and a spring. The bearing connecting piece is provided with oblique teeth which are engaged with the screw rod. The spring is arranged at the back of the oblique teeth, so that the oblique teeth are always engaged with the screw rod. The bearing connecting piece is more stable and reliable when being driven by the oblique teeth and the screw rod. In combination with the pre-pressing force of the elastic element, the reliable and stable tracking movement of the optical pickup assembly is effectively ensured. The structure is reasonable and simple, the installation and operation are convenient, and the maintenance cost after sale is remarkably reduced. The scheme is practical and effective, and especially applied to the core of the optical disc machine (commonly known as the optical drive) configured by the traditional desktop computer, so that good profit value can be realized.

Exemplary embodiments of the present disclosure can include, for example, an atomic force microscopy (AFM) system, including a cantilever(s), an optical pickup unit(s) (OPU(s)) including a laser positioned over the cantilever(s), and a power source providing noise with a noise level that is below 300 Picometers. The noise level of the power source can be below 200 Picometers. A digitizing arrangement can be included which can be associated with the OPU. The digitizing arrangement(s) can have a bandwidth of about 2 MHZ. The OPU(s) can have a detection bandwidth of at least 80 MHZ. The exemplary apparatus can be combined with a chemical protocol and statistical signal processing and image analysis procedures to map DNA at high speed and accuracy.

A measurement and control system (100, 400, 500) for a laser beam in an EUV radiation source is disclosed. The system includes an optical pickup (405, 540, 550) configured to measure a forward beam (410, 510, 520, 530) directed toward a target site (420, 535) and a return beam (415) reflected from the target site. The system also includes an actuatable optical device (425, 430, 435, 465, 475, 555, 560, 565) that can be configured to direct and focus the forward beam onto the target site and align a measurement plane of the optical pickup with the target site. The actuatable optical device is disposed in the path of the forward beam before and after the optical pickup, and the actuatable optical device is controlled in response to measurements of the forward beam and the return beam by the optical pickup.

A photonic image rejection radio frequency (RF) mixer and a receiver implementing the same may suppress undesired mirror image signals having frequencies at a spectral location that is mirror-symmetric, with respect to a local oscillator (LO), to that of a signal of interest. An upconverted optical beam corresponding to a captured RF beam is extracted by an optical processor. The upconverted optical beam is mixed with the LO to obtain a desired composite optical signal and an undesired composite optical signal, each providing a corresponding beat frequency optical signal at the same frequency. The desired and undesired composite optical signals are captured by multiple optical pickups with relative phase shifts in their beat frequency optical signals which are converted into corresponding electrical signals and combined to suppress the undesired signal.

A metrology and control system (100, 400, 500) for a laser beam in an EUV radiation source is disclosed. The system includes an optical pickup (405, 540, 550) configured to measure a forward beam (410, 510, 520, 530) directed towards a target location (420, 535) and a return beam (415) reflected from the target location. The system also includes operable optical devices (425, 430, 435, 465, 475, 555, 560, 565) configurable to direct and focus the forward beam to the target location and to align the measurement plane of the optical pickup with the target location. The operable optical devices are disposed before and after the optical pickup in the path of the forward beam, and the operable optical devices are controlled in response to measurements of the forward beam and the return beam by the optical pickup.

1. Name of the designed product: photoelectric pick-up. 2. Use of the designed product: equipment for collecting sound and converting it into an electric signal. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The present application is applied to the field of optical storage. Provided is an optical pickup. The optical pickup comprises a first laser, a first collimating lens, an intermediate lens group, a first detector, and a focusing lens, wherein the first laser is used for generating a first light beam and transmitting the first light beam to the first collimating lens; the first collimating lens is used for transmitting the first light beam to the focusing lens through the intermediate lens group; the focusing lens is a binary optical element; the focusing lens is used for transmitting the first light beam to an optical recording medium and receiving a reflected light beam of the first light beam from the optical recording medium; the focusing lens is further used for transmitting the reflected light beam of the first light beam to the first detector through the intermediate lens group; and the first detector is used for converting the reflected light beam of the first light beam into a first electrical signal. In the technical solution provided by the present application, by means of using a binary optical element as the focusing lens, the sag of the focusing lens can be reduced, and thus the size of the optical pickup can also be reduced.

1. The name of the design product: optical head machine (01). 2. The use of the design product: for hair. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. Name of the product in this design: Photoelectric microphone. 2. Purpose of this design: To create an analog record photoelectric pickup that achieves high signal-to-noise ratio and high sound fidelity through photoelectric sensing technology. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The embodiment of the invention discloses an optical disc driver, an optical disc driving method, optical disc jukebox equipment and an optical disc jukebox system, relates to the technical field of storage, and solves the problems of poor expansion capability and high implementation cost when a server needs to communicate with more optical disc drivers. According to the specific scheme, the optical disc driver is provided, and the optical disc driver comprises an Ethernet connector, a first processing circuit and a first optical pickup unit which are sequentially coupled. Wherein the first optical pickup unit is used for writing data into an optical disc or reading data from the optical disc. The first processing circuit is used for processing the data. The Ethernet connector is used for transmitting the data based on an Ethernet protocol.

Embodiments of the present application relate to the technical field of storage. Disclosed are an optical disc drive, an optical disc driving method, an optical disc library device, and an optical disc library system, solving the problems that when a server needs to communicate with more optical disc drives, the expansion capability is poor, and the implementation cost is high. The specific solution comprises: providing an optical disc drive. The optical disc drive comprises an Ethernet connector, a first processing circuit, and a first optical pickup unit which are coupled in sequence. The first optical pickup unit is used for writing data into an optical disc, or reading data from the optical disc. The first processing circuit is used for processing the data. The Ethernet connector is used for transmitting the data on the basis of an Ethernet protocol.

Embodiments of the present application relate to the technical field of optical disc reading / writing, and provide an optical pickup device and an optical disc reading / writing device, for use in solving the problem that the service life of an optical pickup device and the service life of an optical disc driver are restricted by the service life of a laser. The optical pickup device comprises a light source part and an acting part; the light source part is used for generating light source beams to be projected to the acting part; and the acting part is used for receiving the light source beams and using the light source beams to carry out data reading / writing on an optical disc. The wavelength of at least some of the light source beams is a first wavelength. The light source part comprises N first wavelength lasers; the first wavelength lasers are used for generating first wavelength laser beams having the first wavelength; and the first wavelength laser beams are used for forming the light source beams. N is a positive integer greater than or equal to 2; and the N first wavelength lasers can work alternately under the control of a control circuit. The optical pickup device can be applied to the optical disc reading / writing device.

The invention provides an optical pickup which is applied to the field of optical storage. The optical pickup includes a first laser, a first collimating lens, an intermediate lens group, a first detector, and a focusing lens. The first laser is used for generating a first light beam and transmitting the first light beam to the first collimating lens. The first collimating lens is used for transmitting a first light beam to the focusing lens through the middle lens group. The focusing lens is a binary optical device. The focus lens transmits a first light beam to an optical recording medium, and receives a reflected light beam of the first light beam from the optical recording medium. The focusing lens is further configured to transmit a reflected beam of the first beam to the first detector through the intermediate lens group. The first detector is used for converting a reflected light beam of the first light beam into a first electric signal. In the technical scheme provided by the invention, the binary optical device is used as the focusing lens, so that the rise of the focusing lens can be reduced, and the size of the optical pickup is reduced.

The utility model relates to a compact optical pickup device, include: light receiving part, between optical equipment fixed as optical pickup quick detachable interface, light beam collector is used for collecting light beam, light beam adapter is connected with light beam collector at one end, adjusting frame is equipped with mirror in it, and mirror is obliquely arranged, connecting piece is for light inlet end, and the light to be collected passes through mirror reflection and is collected to light beam collector in connecting piece place. The compact optical pickup device, the light to be collected enters from the light inlet end of connecting piece, and the angle of mirror is adjusted through the threaded pair on adjusting frame to realize that the light beam comes in is reflected to the center of light beam collector, can reduce the space of optical pickup since the change of the direction of light path propagation, in addition, the mode that top screw and swallow-tailed groove are used between light beam collector, light beam adapter, adjusting frame, mirror and connecting piece, and the dismounting is convenient and fast, can greatly save time.

A metrology and control system (100, 400, 500) for a laser beam in an EUV radiation source is disclosed. The system comprises an optical pickup (405, 540, 550) configured to measure a forward beam (410, 510, 520, 530) directed towards a target location (420, 535) and a return beam (415) reflected from the target location. The system also comprises actuatable optical devices (425, 430, 435, 465, 475, 555, 560, 565) configurable to direct and focus the forward beam onto the target location and align a measurement plane of the optical pickup with the target location. The actuatable optical devices are disposed before and after the optical pickup in a path of the forward beam, and the actuatable optical devices are controlled in response to a measurement of the forward beam and the return beam by the optical pickup.

1. Name of the Design Product: Photoelectric Pickup (Integrating Sphere). 2. Use of the Design Product: A photoelectric pickup for analog records that achieves high signal-to-noise ratio and high-fidelity sound during analog record playback through photoelectric sensing technology. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.