Xuemei Zhang from Roscoe, IL, age 48

Ambient Infrared Detection In Solid State Sensors
view source
US Patent:

7737394, Jun 15, 2010
Filed:

Aug 31, 2006
Appl. No.:

11/513582
Inventors:

Ilia Ovsiannikov - Studio City CA, US
Xuemei Zhang - Mountain View CA, US
Dmitri Jerdev - South Pasadena CA, US
Assignee:

Micron Technology, Inc. - Boise ID
International Classification:

G03B 13/02
US Classification:

250226, 250214 AL, 250214 B, 250332, 257440, 348272, 356402, 356419
Abstract:

A solid state imaging device includes an array of active pixels and an infrared cut filter formed over the sensor. Optionally, a slot in the infrared cut filter allows infrared illumination to reach the sensor to be detected by pixels covered by a visually opaque filter and surrounded by pixels of special types that limit charge leakage and enable high dynamic range sensing of infrared illumination. A ratio of average infrared signal to average brightness indicates an amount of infrared illumination reaching the imaging device.

Ambient Infrared Detection In Solid State Sensors
view source
US Patent:

8569681, Oct 29, 2013
Filed:

Jun 11, 2010
Appl. No.:

12/813705
Inventors:

Ilia Ovsiannikov - Studio City CA, US
Xuemei Zhang - Mountain View CA, US
Dmitri Jerdev - South Pasadena CA, US
Assignee:

Micron Technology, Inc. - Boise ID
International Classification:

G03B 13/02
US Classification:

250226, 250332
Abstract:

A solid state imaging device includes an array of active pixels and an infrared cut filter formed over the sensor. Optionally, a slot in the infrared cut filter allows infrared illumination to reach the sensor to be detected by pixels covered by a visually opaque filter and surrounded by pixels of special types that limit charge leakage and enable high dynamic range sensing of infrared illumination. A ratio of average infrared signal to average brightness indicates an amount of infrared illumination reaching the imaging device.