Imaging device, startup method of imaging device, and computer readable recording medium

1. An imaging device that starts power supply to an imaging unit and a display unit in response to input of a power source, and performs startup process for transitioning to a capturable state, the imaging device comprising:

an imaging control unit configured to enable the imaging unit to operate after a first predetermined time from the starting of the power supply to the imaging unit;

a display control unit configured to control the display unit to display image data generated by the imaging unit after a second predetermined time from the starting of the power supply to the display unit, the second predetermined time being longer than the first predetermined time; and

a display image data generating unit configured to generate display image data from when the display unit is ready to display the image data to when the transition to the capturable state completes,

wherein the imaging unit captures a light flux and converts the light flux to the image data, the light flux passing through an optical system in a state in which a lens in the optical system has not reached a predetermined target state before completion of an initializing operation from when the display unit is ready to display the image data to when the transition to the capturable state completes during the startup process, and

the display image data generating unit generates the display image data by sequentially reducing or magnifying, based on a current focal point distance in the optical system before the completion of the initializing operation, an image relating to the converted image data.

2. The imaging device according to claim 1 ,

wherein the capturable state is:

an imaging standby state in which an optical system or a diaphragm is set in a predetermined position and capturing is capable of being performed in response to a release signal; or

a storage position state in which the optical system or the diaphragm is set in a position when the power source of the imaging device is turned off and capturing is capable of being performed in response to a release signal.

3. The imaging device according to claim 1 , further comprising:

a voice coil motor (VCM) moving mechanism including a magnet and a coil and configured to move a movable portion, in which an imaging element is disposed, with respect to a fixed portion by a magnetic force; and

a VCM moving control unit configured to control the movable portion to operate after a third predetermined time from starting of power supply to the coil of the VCM moving mechanism in response to the input of the power source,

wherein the capturable state is a state in which the movable portion is moved with respect to an image formation region when the imaging element disposed in the movable portion is positioned in a basic position such that a region of a part of an imaging region including an optical axis center of the imaging element is in a state of being included in the image formation region, and

the display image data generating unit generates the region of the part of the imaging region including the optical axis center of the imaging element as the image data.

4. The imaging device according to claim 1 , further comprising:

a voice coil motor (VCM) moving mechanism including a magnet and a coil and configured to move a movable portion, in which a lens is disposed, with respect to a fixed portion by a magnetic force; and

a VCM moving control unit configured to control the movable portion to operate after a third predetermined time from stating of power supply to the coil of the VCM moving mechanism in response to the input of the power source,

wherein the capturable state is a state in which the movable portion is moved with respect to an image formation region on an imaging element when the lens disposed in the movable portion is positioned in a basic position such that the lens is positioned in a position different from the basic position and a region of a part of an imaging region including an optical axis center of the imaging element at this time is in a state of being included in the image formation region, and

the display image data generating unit generates the region of the part of the imaging region including the optical axis center of the imaging element as the image data.

5. The imaging device according to claim 1 ,

wherein the display image data generating unit includes a processed image data generating unit configured to generate processed image data based on a focal point distance value and a diaphragm value of a display state in which display is capable of being performed by the display control unit, when the image is displayed on the display unit with being sequentially magnified or reduced.

6. The imaging device according to claim 5 ,

wherein the display image data generating unit includes a performance image data generating unit configured to generate performance image data representing that the startup process is in progress, and

the display control unit controls the display unit to display the generated performance image data on an image region other than a region corresponding to the image data.

7. The imaging device according to claim 1 , further comprising:

a storage unit configured to store start modes which are set after the startup process when the power source is turned on; and

an input unit configured to receive input of a selection of a start mode selected from the start modes stored in the storage unit,

wherein the display control unit controls the display unit to display the start modes stored in the storage unit on the display unit, and controls the display unit to display a pseudo image corresponding to the selected start mode when the input unit receives the selection of the start mode.

8. A startup method of an imaging device which starts power supply to an imaging unit and a display unit in response to input of a power source, and performs startup process for transition to a capturable state, the method comprising:

enabling the imaging unit to operate after first predetermined time from the starting of the power supply to the imaging unit;

converting a light flux to the image data by the imaging unit, the light flux passing through an optical system in a state in which a lens in the optical system has not reached a predetermined target state before completion of an initializing operation from when the display unit is ready to display the image data to when the transition to the capturable state completes during the startup process;

controlling the display unit to display the image data generated by the imaging unit after second predetermined time from the starting of the power supply to the display unit, the second predetermined time being longer than the first predetermined time;

generating display image data by sequentially reducing or magnifying, based on a current focal point distance in the optical system before the completion of the initializing operation, an image relating to the converted image data until the transition to a capturable state completes; and

controlling the display unit to display the generated display image from when the display unit is ready to display the image data to when the transition to the capturable state completes during the startup process.

9. A non-transitory computer-readable recording medium with an executable program stored thereon, the program causing a processor to execute:

enabling an imaging unit to operate after first predetermined time from starting of power supply to the imaging unit;

converting a light flux to the image data by the imaging unit, the light flux passing through an optical system in a state in which a lens in the optical system has not reached a predetermined target state before completion of an initializing operation from when the display unit is ready to display the image data to when the transition to the capturable state completes during the startup process;

controlling the display unit to display the image data generated by the imaging unit after second predetermined time from the starting of the power supply to the display unit, the second predetermined time being longer than the first predetermined time;

generating display image data by sequentially reducing or magnifying, based on a current focal point distance in the optical system before the completion of the initializing operation, an image relating to the converted image data until the transition to a capturable state completes; and

controlling the display unit to display the generated display image from when the display unit is ready to display the image data to when the transition to the capturable state completes during the startup process.