Title:
LENS DEVICE, AND IMAGING DEVICE HAVING THE SAME
Document Type and Number:
Japanese Patent JP2018155822
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problem in which, when a boosted voltage serves as a power source voltage of an activation circuit upon desiring to achieve a speedup in zooming, a high voltage is applied even under an activation condition conventionally not requiring the high voltage at a low speed and the like, unwanted power is consumed.SOLUTION: A lens device according to the present invention has: an optical member; an activation source that activates the optical member; command value acquisition means that acquires a command value for activating the optical member; activation signal generation means that generates an activation signal for activating the activation source on the basis of the command value; control means that sets an activation power source voltage on the basis of the command value; and power source voltage control means that converts a power source voltage to be supplied from an outside into the activation power source voltage to supply the converted activation power source voltage to the activation signal generation means.SELECTED DRAWING: Figure 1
Inventors:
YOKOZEKI CHINAMI
Application Number:
JP2017050777A
Publication Date:
October 04, 2018
Filing Date:
March 16, 2017
Export Citation:
Assignee:
CANON KK
International Classes:
G02B7/08; G03B17/02; H04N5/232
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Masami Saito
Takao Ochi
Koji Yoshizawa
Masami Saito