Olympus Corporation

Masanori Shimoyama

Rintaro Nishihara

Takashi Ishikawa

Sho Nakamura

An endoscope system includes an endoscope having a position/angle sensor and an amplifying circuit, a memory configured to store output error sensitivity data and a first wiring resistance value, and a processor including a signal processing circuit configured to process an output signal from the amplifying circuit. The signal processing circuit corrects an error of the output signal based on a value obtained by multiplying a difference between the first wiring resistance value and a processor wiring resistance value by the output error sensitivity data.

Endoscope system, processor, calibration apparatus, and endoscope

An endoscope system includes an endoscope and a processor. The endoscope includes: an actuator including a coil configured to cause a movable lens and a magnet to move by application of a drive signal; a position sensor configured to output a position detection signal showing a position of the movable lens according to a magnetic flux of the magnet; and an endoscope memory storing correction information for correcting crosstalk onto the position detection signal by the magnetic flux of the coil. The processor includes a drive controller configured to correct the position detection signal based on the drive signal and the correction information and output the drive signal based on a target position and the corrected position detection signal, to the actuator.

Endoscope system, processor and endoscope

A camera shake correction apparatus includes a target position setting unit, a current setting unit, a driving unit, a magnetic flux detector, and an arithmetic unit. The target position setting unit sets a target position of a movable member. The current setting unit sets a current value to move the movable member to the target position. The driving unit drives the movable member with respect to a fixed member based on the set current set value. The magnetic flux detector detects a magnetic flux value changed with movement of the movable member. The arithmetic unit calculates a third magnetic flux value by subtracting a second magnetic flux value estimated to be generated from the driving unit based on the current set value from a first magnetic flux value actually detected by the magnetic flux detector.

Camera shake correction apparatus

The invention provides a position detection apparatus comprising:

Position detection apparatus and position control apparatus

The invention disclosed herein provides a small-format image-shake correction apparatus and an imaging apparatus incorporating the same. The moving member control apparatus is comprising a base part, a moving partthat is movable relatively to the base part, a first driving partthat applies an driving force to the moving part, a second driving partthat applies an driving force to the moving part, a third driving partthat applies an driving force to the moving partfrom a position different from the firstand the second driving part, a control partthat gains control of the driving forces of the first, the secondand the third driving part, and a correction partthat makes correction of a first output value Iproduced from the control partto the first driving partand a second output value Iproduced from the control partto the second driving part, depending on a third output value Iproduced from the control partto the third driving part, as shown in FIG.

Moving member control apparatus and imaging apparatus incorporating the same

The present invention relates to a moving member control apparatus that makes sure unerring control of a moving member having an ill-balanced structure and an imaging apparatus that incorporates that control apparatus.

Growing community of inventors

Tokyo, Japan

Masanori Shimoyama