5 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.

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.

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.

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.