Back to results
US 2019/0377236 A1Published application
Liquid lens, liquid lens module including the lens, camera module including the same, and method for controlling the lens
AssigneeLG Innotek Co., Ltd.
InventorsHyun Woong Jang, Young Seop Moon
Life of this patent
Estimating the term…
Abstract
The present invention provides a camera module including a liquid lens, the camera module comprising: a first plate including a cavity in which conductive liquid and non-conductive liquid are arranged; a common electrode disposed on the first plate; an individual electrode disposed below the first plate; a second plate disposed on a first electrode; and a third plate disposed below a second electrode.
Claims21
1-10. (canceled)
A camera module, comprising:
- a liquid lens, the liquid lens comprising:
- a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed;
- a first electrode disposed on the first plate;
- a second electrode disposed under the first plate;
- a second plate disposed on the first electrode;
- and
- a third plate disposed under the second electrode;
- a lens holder accommodating the liquid lens and a solid lens therein;
- a sensor substrate on which an image sensor is disposed, the sensor substrate being disposed under the lens holder;
- a control unit disposed on the sensor substrate, the control unit controlling a voltage to be applied to the first electrode and the second electrode;
- a connection unit configured to electrically connect the first electrode or the second electrode to the sensor substrate;
- and
- a temperature sensor disposed on the connection unit,
- wherein the lens holder comprises a recess in which the temperature sensor is disposed.
11 more elements
A method of controlling a liquid lens included in a camera module, the liquid lens comprising a common electrode and four individual electrodes to adjust an interface formed by two liquids, the method comprising:
- sensing a change in temperature of the liquid lens;
- determining variation in diopter corresponding to the change in temperature;
- and
- adjusting voltages to be supplied to the four individual electrodes in response to the variation in diopter.
1 more element
A camera module, comprising:
- a liquid lens, the liquid lens comprising:
- a first plate including a cavity in which a conductive liquid and a non-conductive liquid are disposed;
- a common electrode disposed on the first plate;
- a plurality of individual electrodes disposed under the first plate;
- a second plate disposed on the common electrode;
- and
- a third plate disposed under the individual electrodes;
- a lens holder accommodating the liquid lens and a solid lens therein;
- a sensor substrate on which an image sensor is disposed, the sensor substrate being disposed under the lens holder;
- a control unit disposed on the sensor substrate and controlling voltages to be applied to the common electrode and the individual electrodes;
- and
- a connection unit configured to electrically connect the individual electrodes or the common electrode to the sensor substrate,
- wherein the control unit senses a change in resistance of the common electrode of the liquid lens to control driving voltages to be supplied between the common electrode and the individual electrodes.
10 more elements
A liquid lens module, comprising:
- a liquid lens including a common electrode and a plurality of individual electrodes;
- a first terminal forming a plurality of contact regions with the common electrode;
- and
- a second terminal forming a single contact region with the common electrode,
- wherein the common electrode includes a slit pattern, which is disposed adjacent to the single contact region, which contacts the second terminal.
2 more elements
A camera module, comprising:
- a liquid lens, the liquid lens comprising:
- a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed;
- a first electrode disposed on the first plate;
- a second electrode disposed under the first plate;
- a second plate disposed on the first electrode;
- and
- a third plate disposed under the second electrode;
- a lens holder accommodating the liquid lens and a solid lens therein;
- a sensor substrate on which an image sensor is disposed, the sensor substrate being disposed under the lens holder;
- a control unit disposed on the sensor substrate, the control unit controlling a voltage to be applied to the first electrode and the second electrode;
- a connection unit configured to electrically connect the first electrode or the second electrode to the sensor substrate;
- and
- a temperature sensor disposed on the liquid lens,
- wherein the liquid lens comprises a lens region, in which the conductive liquid and the non-conductive liquid are disposed, and a rib region surrounding the lens region, and
- wherein the temperature sensor is disposed on the rib region.
12 more elements
Dependencies are inferred from the claim text.