Abstract: A lens driving actuator includes an upper cover having an opening for passing light, a lens barrel arranged in the upper cover and including a light-transmitting lens, a driving pin formed on an outer circumferential surface of the lens barrel, a driving cam member formed to cover the outer circumference of the lens barrel, and having a cam groove that engages with the driving pin, and a driving source configured to supply a driving force to a gear formed in the driving cam member. When the driving cam member rotates along the outer circumferential surface of the lens barrel, the driving pin is guided by the cam groove, and the lens barrel moves in an optical-axis direction with respect to the upper cover.

Abstract: A blade driving device including, a base plate including an opening through which light passes, a blade configured to runs on a surface of the base plate to open and close the opening, a drive mechanism including a drive spring and actuates the blade; and a charge mechanism configured to perform a charge operation on the drive mechanism against the drive spring. The charge mechanism includes a slide member configured to linearly reciprocate in a direction parallel to the base plate along a motor between the motor and the drive mechanism, the motor generating a driving force for the charge mechanism.

Abstract: A blade driving device including, a base plate including an opening through which light passes, a blade configured to runs on a surface of the base plate to open and close the opening, a drive mechanism including a drive spring and actuates the blade; and a charge mechanism configured to perform a charge operation on the drive mechanism against the drive spring. The charge mechanism includes a slide member configured to linearly reciprocate in a direction parallel to the base plate along a motor between the motor and the drive mechanism, the motor generating a driving force for the charge mechanism.

Abstract: There is provided a combustion plate in which the combustion resonant sounds and instability at the time of high-load combustion can be resolved and in which a large opening ratio of the flame holes can be secured. Flame holes of an equal diameter are formed evenly over an entire surface of a combustion region of a plate main body in such a positional relationship that adjoining three flame holes form an equilateral triangle. Provided that a flame hole group which is made up of six flame holes disposed in a positional relationship to form an equilateral hexagon and one flame hole in the center of the equilateral hexagon is defined as a unit flame hole group when disposed adjacent to another flame hole group across a large equilateral hexagon enclosing the equilateral hexagon, there is formed in the surface of the plate main body a bottomed hole.

Abstract: There is provided a combustion plate in which the combustion resonant sounds and instability at the time of high-load combustion can be resolved and in which a large opening ratio of the flame holes can be secured. Flame holes of an equal diameter are formed evenly over an entire surface of a combustion region of a plate main body in such a positional relationship that adjoining three flame holes form an equilateral triangle. Provided that a flame hole group which is made up of six flame holes disposed in a positional relationship to form an equilateral hexagon and one flame hole in the center of the equilateral hexagon is defined as a unit flame hole group when disposed adjacent to another flame hole group across a large equilateral hexagon enclosing the equilateral hexagon, there is formed in the surface of the plate main body a bottomed hole.