Canon Kabushiki Kaisha

Junji Shigeta

Yasuhiro Takahashi

Kazuo Moritomo

Toshihiko Myojo

An intermediate accessory apparatus configured to be detachably mounted between an interchangeable lens apparatus and an image pickup apparatus includes a storage configured to store characteristic information about a combined optical characteristic of the interchangeable lens apparatus and the intermediate accessory apparatus, the characteristic information being associated with state information indicating a state of the interchangeable lens apparatus, the state information being communicated via a first communication between the interchangeable lens apparatus and the image pickup apparatus, and a processor configured to receive identification information about the interchangeable lens apparatus from the image pickup apparatus, and transmit the characteristic information corresponding to the identification information to the image pickup apparatus, via a second communication between the intermediate accessory apparatus and the image pickup apparatus.

Intermediate accessory apparatus, image pickup apparatus, image pickup system, processing method, and storage medium

A camera includes a lens-camera communication controller and an adapter-camera communication controller. The camera-lens communication channel includes a first data communication channel used during a data communication and a first notification channel used for a notification of a timing of a communication via the first data communication channel. The camera-adapter communication channel includes a second data communication channel used during the data communication and a second notification channel used for a notification of a timing of a communication via the second data communication channel.

Camera, interchangeable lens apparatus, adapter apparatus, control method, and storage medium

A lens apparatus is provided that includes: an optical member; a driving device configured to drive the optical member; and a controller configured to control the driving device based on a first learned model, wherein the first learned model is a learned model obtained by learning with respect to the lens apparatus using a second learned model as an initial learned model, the second learned model being obtained by learning with respect to an apparatus different from the lens apparatus.

Lens apparatus, image pickup apparatus, camera apparatus, controlling method, and computer-readable storage medium

A lens apparatus includes an optical member, a driving device configured to perform driving of the optical member, a detector configured to detect a state related to the driving, and a processor configured to generate a control signal for the driving device based on first information about the detected state, wherein the processor includes a machine learning model configured to generate an output related to the control signal based on the first information and second information about the lens apparatus, and is configured to output the first information and the second information to a generator configured to perform generation of the machine learning model.

Lens apparatus, image pickup apparatus, processing apparatus, processing method, and computer-readable storage medium

Provided is output apparatus configured to output correction information on combinations each of which is a combination of a value of a parameter of an optical system and correction data corresponding to the value, the system forming an image to be picked up by a camera, the information being used for determining correction amount regarding optical characteristic of the optical system the output apparatus including: memory; and processor determining the correction information based on information regarding the camera, in which the processor determines, letting positive integers M and N satisfying M&#x3c;N, the correction information when a number of combinations is M so as to include information on a combination of the value and the correction data that is not included in combinations of the correction information when a number of the combinations is N, and in which the memory stores the correction information obtained when the number is N.

Output apparatus, lens apparatus, adaptor apparatus, camera apparatus, and image pickup apparatus

A control apparatus which performs control of a movable optical member of an optical apparatus based on a first operation amount of a first operation device and a second operation amount of a second operation device, comprises: a storage that stores information of a first operation sensitivity of the first operation device and a second operation sensitivity of the second operation device; and a processor configured to generate a target value for the control based on the first operation amount, the second operation amount, and the first operation sensitivity and the second operation sensitivity of which information is stored in the storage.

Control apparatus, lens apparatus, and imaging apparatus

A position output unit according to the invention includes a pulse generator that generates a second pulse train signal on a basis of a first pulse train signal output from a position detector that generates the first pulse train signal including a number of pulses representing the displacement amount of a movable member. The pulse generator generates the second pulse train signal in such a way that a second total pulse number defined as a total number of pulses in the second pulse train signal corresponding to a displacement amount of the movable member over an entirety of the movable range is smaller than or equal to a first total pulse number defined as a total number of pulses in the first pulse train signal corresponding to the entirety of the movable range of the movable member.

Position output unit, and lens apparatus and lens system having the same

A drive controller for controlling driving of a movable optical member of a lens apparatus, including: a position acquirer acquiring a position of the movable optical member; an instruction inputter receiving a first driving command for driving the movable optical member from an external apparatus; and a controller determining a driving amount so that the movable optical member is driven to a position different from a position corresponding to the first driving command based on the first driving command and the position of the movable optical member every unit time, and outputs a second driving command to the lens apparatus so that the movable optical member is driven by the driving amount within the unit time, wherein the controller sets the driving amount within the unit time larger as a difference between the position corresponding to the first driving command and the position of the movable optical member becomes larger.

Drive control apparatus for a lens apparatus, lens apparatus including the same, and image pickup apparatus including the same

Image pickup information output apparatus which outputs information about image pickup condition derived from combination of positions/states of condition decision members serving as optical members that affect fulfillment of the condition, comprising: setting unit for setting a condition setting value as the condition to be fulfilled; controller for driving one of the condition decision members to control its position/state based on the condition setting value, condition calculator for calculating information about the condition as calculated condition based on the combination of positions/states of the condition decision members; determination unit for determining whether or not the condition setting value changed; decision unit for determining the information about condition to be output, based on the calculated condition and the determination made by the determination unit as to whether or not the condition setting value changed; and output unit for outputting information about the condition to be output determined by the decision unit.

Image pickup information output apparatus and lens apparatus equipped with same

A position detector, includes: a scale having pattern arrays formed in different cycles in a movement direction an obtaining unit which obtains signals in accordance with the pattern arrays; a first deriving unit which derives a temporal position of the scale relative to the obtaining unit based on the signals; a second deriving unit which derives a displacement amount of the scale relative to the obtaining unit based on one or more signals of the signals; and a determinates which determines a determined position of the scale relative to the obtaining unit based on the temporal position and the displacement amount, wherein the determinator determines the determined position based on a result of comparison between a difference between first and second temporal positions respectively calculated by the first and second deriving units at first and second positions and a displacement amount from the first position to the second position.

Position detecting apparatus, and lens apparatus and image pickup apparatus including the position detecting apparatus

Provided is a lens system, including: a lens apparatus including a movable optical member; a command apparatus for generating a command signal to be transmitted to the movable optical member; and a signal converter connected to the command apparatus by wire and communicable to and from the lens apparatus by wireless, in which: the lens apparatus includes: a drive controller for controlling drive of the movable optical member based on the command signal; and a wireless communicator for performing wireless communication to and from the signal converter; and after the wireless communication between the wireless communicator and the signal converter is stopped, the drive controller drives and controls the movable optical member in accordance with a situation in which the wireless communication is stopped.

Lens system having a movable optical member that is controllable according to a predetermined command value, image pickup system, and drive control method for the lens system

A position detector which detects the position of a movable member relative to a fixed member includes a signal detector configured to detect periodic signals which respectively indicate predetermined values concerning the position of the movable member relative to the fixed member and change at different periods in accordance with a position change, a signal processor configured to generate displacement signals based on the periodic signals detected by the signal detector and sequentially output the generated displacement signals while switching the signals at a predetermined period, a position calculator configured to calculate a position of the movable member relative to the fixed member based on the displacement signals, and a reliability determining unit configured to determine that the reliability of the position calculated by the position calculator is low, if the displacement amount of the movable member in the predetermined period is larger than a predetermined threshold.

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Utsunomiya, Japan

Junji Shigeta