Camera apparatus and optical device
An embodiment comprises: a fixed part; a movable part located away from the fixed part and comprising an image sensor having an imaging area comprising a unit pixel; and a first control part for moving the movable part in a direction perpendicular to an optical axis with respect to the fixed part, wherein the first control part sequentially moves the movable part to predetermined locations, and the image sensor obtains pixel data of the imaging area from the predetermined locations.
1 . A camera device comprising:
a fixed unit;
a moving unit spaced apart from the fixed unit, the moving unit comprising an image sensor having an imaging area comprising a unit pixel; and
a first controller configured to move the moving unit with respect to the fixed unit in a direction perpendicular to an optical axis,
wherein the first controller is configured to sequentially move the moving unit to predetermined positions, and the image sensor is configured to obtain pixel data of the imaging area at the predetermined positions, and
wherein the first controller is configured to sequentially move the moving unit to the predetermined positions in a clockwise or counterclockwise direction, the movement being performed along directions parallel to an X-axis or a Y-axis, each of the X-axis and the Y-axis being perpendicular to the optical axis.
2 . The camera device according to claim 1 , wherein the predetermined positions are positions spaced apart from an initial position of the moving unit by a predetermined distance in different directions, and the initial position is a position of the moving unit in a state in which the moving unit is not moved by the first controller.
3 . The camera device according to claim 2 , wherein the predetermined positions comprise: a first position shifted from the initial position by the predetermined distance in a positive x-axis direction, a second position shifted from the initial position by the predetermined distance in a negative x-axis direction, a third position shifted from the initial position by the predetermined distance in a positive y-axis direction, and a fourth position shifted from the initial position by the predetermined distance in a negative y-axis direction.
4 . The camera device according to claim 2 , wherein the predetermined distance is greater than or equal to one half a length of the unit pixel.
5 . The camera device according to claim 4 , wherein the predetermined distance is less than or equal to ten times the length of the unit pixel.
6 . The camera device according to claim 1 , wherein, in a mode of taking a snapshot, the moving unit is sequentially moved to the predetermined positions for a predetermined time period.
7 . The camera device according to claim 6 , wherein the predetermined time period is 1 second.
8 . The camera device according to claim 1 , wherein, in a mode of taking a video, sequential movement of the moving unit to the predetermined positions is repeatedly performed.
9 . The camera device according to claim 8 , wherein a pixel area of the imaging area at each of the predetermined positions is defined as a pixel plane, and
wherein, when a speed of the image sensor is a predetermined number of frames per second, the moving unit is repeatedly moved to the predetermined positions in order to obtain a predetermined number of pixel planes per second.
10 . The camera device according to claim 1 , wherein the predetermined positions comprise: a first position spaced apart from an initial position of the moving unit by a predetermined distance in a +x-axis direction, a second position spaced apart from the first position by the predetermined distance in a +y-axis direction, a third position spaced apart from the second position by the predetermined distance in a-x-axis direction, and a fourth position spaced apart from the third position by the predetermined distance in a-y-axis direction, and
wherein the moving unit is sequentially moved to the first position, the second position, the third position, and the fourth position.
11 . The camera device according to claim 1 , comprising:
a magnet disposed in the fixed unit; and
a coil disposed in the moving unit so as to face the magnet,
wherein the first controller is configured to supply a driving signal to the coil and control the driving signal to sequentially move the moving unit to the predetermined positions.
12 . The camera device according to claim 1 , wherein one of the predetermined positions is an initial position of the moving unit, and the initial position is a position of the moving unit in a state in which the moving unit is not moved by the first controller.
13 . A camera device comprising:
a fixed unit;
a moving unit spaced apart from the fixed unit and comprising an image sensor having an imaging area comprising a plurality of unit pixels; and
a first controller configured to move the moving unit with respect to the fixed unit in a direction perpendicular to an optical axis,
wherein the first controller sequentially moves the moving unit to predetermined positions for a predetermined time period, and the image sensor obtains pixel data of the imaging area at each of the predetermined positions, and
wherein the first controller is configured to sequentially move the moving unit to the predetermined positions in a clockwise or counterclockwise direction, the movement being performed along directions parallel to an X-axis or a Y-axis, each of the X-axis and the Y-axis being perpendicular to the optical axis.
14 . The camera device according to claim 13 , wherein the first controller is configured to move the moving unit to the predetermined positions once for the predetermined time period.
15 . The camera device according to claim 13 , wherein the first controller is configured to move the moving unit to the predetermined positions twice or more for the predetermined time period.
16 . The camera device according to claim 13 , wherein the predetermined time period is 1 second.
17 . The camera device according to claim 14 , wherein the moving unit is repeatedly moved to the predetermined positions a predetermined number of times for 1 second.
18 . The camera device according to claim 17 , wherein the speed of the image sensor is a predetermined number of frames per second, and
wherein the predetermined number of times is greater than or equal to a number of predetermined positions, and less than or equal to a value obtained by dividing the predetermined number of frames by the number of predetermined positions.
19 . An optical instrument comprising:
the camera device according to claim 1 ; and
a second controller configured to perform image processing on pixel data of the imaging area at the predetermined positions transmitted from the image sensor.