Camera module
AssigneeLG Innotek Co., Ltd.
InventorEun Sung Seo
Life of this patent
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Abstract
A camera module comprises a first optical path control member disposed on a moving path of light reflected from a subject and reflects the light incident in a first direction in a second direction perpendicular to the first direction, a first driving member connected to the first optical path control member and controlling a movement of the first optical path control member, a lens portion disposed on the moving path of the light and including at least one lens, an image sensor that detects light passing through the lens, a sensing portion that detects angular velocity and acceleration changing by shaking, and a control portion for controlling the tilt of the first optical path control member in a first or second axis based on the angular velocity and acceleration changing by the shaking.
Claims20
A camera module comprising:
- a first optical path control member disposed on a moving path of light reflected from a subject and configured to reflect light, which is incident in a first direction, in a second direction perpendicular to the first direction;
- a first driving member connected to the first light path control member and configured to control movement of the first light path control member;
- a lens portion disposed on the moving path of the light and including at least one lens;
- an image sensor configured to detect light passing through the lens portion;
- a sensing portion configured to detect angular velocity and acceleration that change due to shaking;
- and
- a control portion configured to control the tilt of the first optical path control member in a first axis or a second axis based on the angular velocity and acceleration changed by the shaking,
- wherein the first optical path control member is provided to be tiltable with a rotation axis in the second direction and in a third direction perpendicular to the first and second directions,
- wherein a tilt angle of the first optical path control member satisfies the following Equation 1:
- ϕ
-
- x
- 2
- -
- tan
- -
- 1
- (
- Ty
- L
- )
- 2
- -
- 1
- <
- θ
-
- x
- <
- ϕ
-
- x
- 2
- -
- tan
- -
- 1
- (
- Ty
- L
- )
- 2
- +
- 1
- [
- Equation
-
- 1
- ]
- ϕ
-
- y
- 2
- -
- tan
- -
- 1
- (
- Tx
- L
- )
- 2
- -
- 1
- <
- θ
-
- y
- <
- ϕ
-
- y
- 2
- -
- tan
- -
- 1
- (
- Tx
- L
- )
- 2
- +
- 1
- where L is a distance to the subject, θx is an angle at which the first optical path control member tilts in the second direction as an axis, θy is an angle at which the first optical path control member tilts in the third direction as an axis, Φx is an amount of angle change of the camera module with respect to the second direction obtained by the control portion, Φy is an amount of angle change of the camera module with respect to the third direction obtained by the control portion, Tx is an amount of change in a position of the camera module in the second direction obtained by the control portion, and Ty is an amount of change in the position of the camera module in the third direction obtained by the control portion.
A camera module comprising:
- a first optical path control member disposed on a moving path of light reflected from a subject and configured to reflect light, which is incident in a first direction, in a second direction perpendicular to the first direction;
- a first driving member connected to the first light path control member and configured to control movement of the first light path control member;
- a lens portion disposed on the moving path of the light and including at least one lens;
- an image sensor configured to detect light passing through the lens portion;
- a sensing portion configured to detect angular velocity and acceleration that change due to shaking;
- a second driving member connected to the image sensor and configured to control a position of the image sensor;
- and
- a control portion -configured to control a tilt angle of the first optical path control member and a position of the image sensor based on the angular velocity and acceleration changed by the shaking,
- wherein the first optical path control member is provided to be tiltable with a rotation axis in each of the second direction and in a third direction perpendicular to the first and second directions,
- wherein a tilt angle of the first optical path control member satisfies the following Equation 2:
- ϕ
-
- x
- 2
- -
- 1
- <
- θ
-
- x
- <
- ϕ
-
- x
- 2
- +
- 1
- [
- Equation
-
- 2
- ]
- ϕ
-
- y
- 2
- -
- 1
- <
- θ
-
- y
- <
- ϕ
-
- y
- 2
- +
- 1
- where θx is an angle at which the first optical path control member tilts in the second direction, θy is an angle at which the first optical path control member tilts in the third direction, Φx is an amount of angle change of the camera module with respect to the second direction obtained by the control portion, and Φy is an amount of angle change of the camera module with respect to the third direction obtained by the control portion.
Dependencies are inferred from the claim text.