Kenny L Chu

US Patent:

20230030160, Feb 2, 2023

Filed:

Aug 1, 2022

Appl. No.:

17/816725

Inventors:

- Chino CA, US
Yingchun Han - Chino CA, US
Kenny Chu - Chino CA, US

International Classification:

H04N 5/238
G02B 27/28

Abstract:

An image sensor having a brightness self-adjust capability is provided. The image sensor can include a light adjustment layer made of adaptive optical materials and a set of pixels. The image sensor can also include a control circuit configured to generate control signals to control adjustment of one or more light transparency levels at the set of pixels on the light adjustment layer based on the light intensity distribution. The image sensor can further include a sensor array configured to receive lights and facilitate output of image and/or video signals based on the received lights. For facilitating light adjustment, the control circuit can be configured to obtain light intensity distribution from a pre-sensor or the sensor array.

US Patent:

20210067716, Mar 4, 2021

Filed:

Aug 26, 2019

Appl. No.:

16/550296

Inventors:

- Chino CA, US
Yingchun Han - Chino CA, US
Kenny Chu - Chino CA, US

International Classification:

H04N 5/355
H01L 27/146
H04N 5/238

Abstract:

An image sensor system having a brightness self-adjust capability is provided. The image sensor system can include a light adjustment layer made of adaptive optical materials and a set of pixels. The image sensor system can also include a control circuit configured to generate control signals to control adjustment of one or more light transparency levels at the set of pixels on the light adjustment layer based on the light intensity distribution. The image sensor system can further include a sensor array configured to receive lights and facilitate output of image and/or video signals based on the received lights. For facilitating light adjustment, the control circuit can be configured to obtain light intensity distribution from a pre-sensor or the sensor array.

US Patent:

20200310178, Oct 1, 2020

Filed:

Mar 28, 2019

Appl. No.:

16/367262

Inventors:

- Chino CA, US
Yingchun Han - Chino CA, US
Kenny Chu - Chino CA, US

International Classification:

G02F 1/133
G02F 1/1335
G02F 1/137

Abstract:

Embodiments provide a smart optical filter capable of dynamically adjusting brightness variations in incident lights in a FOV or an optical field before an image sensor receives the incident lights. The smart optical filter in accordance with the disclosure can be portable and mounted on various imaging devices such as a smart phone or a camera. The smart optical filter may comprises an light adjustment layer made of an adaptive optical materials such liquid crystals. Light intensity distribution can be obtained for an FOV of a device coupled to the smart optical filter. The light intensity distribution can be compared to one or more thresholds to obtain difference values pixels on the light adjustment layer. The difference value can be used to generate control signals to adjust light passing through the pixels. In some embodiments, the control signals may include information indicating an amount of voltage to be applied to the pixels to alter polarization at those pixels.