US 12,408,459 B2
Image sensor having liquid-lens units and method for detecting images
Wei-Lung Tsai, Hsin-Chu (TW); Huang-Jen Chen, Hsin-Chu (TW); Ching-Chiang Wu, Hsin-Chu (TW); and Yu-Chi Chang, Hsin-Chu (TW)
Assigned to VISERA TECHNOLOGIES COMPANY LIMITED, Hsin-Chu (TW)
Filed by VisEra Technologies Company Limited, Hsin-Chu (TW)
Filed on Nov. 30, 2021, as Appl. No. 17/538,354.
Prior Publication US 2023/0170368 A1, Jun. 1, 2023
Int. Cl. H10F 39/00 (2025.01); G02B 3/12 (2006.01); G02B 3/14 (2006.01); G02F 1/1343 (2006.01); G06T 5/50 (2006.01); H10F 39/18 (2025.01)
CPC H10F 39/8063 (2025.01) [G02B 3/12 (2013.01); G02B 3/14 (2013.01); G02F 1/1343 (2013.01); G06T 5/50 (2013.01); H10F 39/182 (2025.01); H10F 39/8053 (2025.01); H10F 39/806 (2025.01); H10F 39/807 (2025.01)] 18 Claims
OG exemplary drawing
 
1. A method for detecting images from an image sensor, comprising:
providing the image sensor having a plurality of liquid-lens units, comprising:
a lower electrode and an upper electrode;
a dielectric layer disposed between the lower electrode and the upper electrode;
a containment space disposed between the dielectric layer and the upper electrode; and
a non-polar liquid and a polar liquid filled into the containment space, wherein the non-polar liquid and the polar liquid are immiscible with each other, wherein the non- polar liquid is configured to occupy a first contact area on the dielectric layer under a first voltage, and a second contact area on the dielectric layer under a second voltage, wherein the first contact area is larger than the second contact area, and the second voltage is higher than the first voltage;
connecting the lower electrode and the upper electrode to a power source;
supplying the first voltage from the power source to the image sensor through the lower electrode and the upper electrode to generate a first image;
supplying the second voltage from the power source to the image sensor through the lower electrode and the upper electrode to generate a second image; and
combining the first image and the second image into a final image using an algorithm,
wherein the first image is colored and the second image is black and white, wherein the algorithm multiplies a sum of a light intensity of the first image and a light intensity of the second image by a normalized spectrum to generate the final image.