Title:
OPTICAL SENSOR, OPTICAL SENSING SYSTEM AND MANUFACTURING METHOD OF OPTICAL SENSOR
Document Type and Number:
WIPO Patent Application WO/2020/038408
Kind Code:
A1
Abstract:
An optical sensor (1-200, 2-200, 2-200'), an optical sensing system (1-600, 2-100) and a manufacturing method of the optical sensor. The optical sensor (1-200, 2-200, 2-200') comprises: a substrate (1-201) having multiple sensing pixels (1-203, 1-203', 1-203M, 2-203, 2-203A, 2-203B, 2-203C) arranged in an array; a first transparent dielectric layer (1-207, 2-206) positioned above the substrate (1-201); and multiple micro-lenses (1-210, 2-210, 2-210A, 2-210B, 2-210C) arranged in an array and positioned at or above the first transparent dielectric layer (1-207, 2-206). The micro-lenses (1-210, 2-210, 2-210A, 2-210B, 2-210C) respectively cause multiple parallel normal incident light rays, which enter the micro-lenses (1-210, 2-210, 2-210A, 2-210B, 2-210C) from an external environment, to pass through the first transparent dielectric layer (1-207, 2-206) and enter the interior of all or part of the sensing pixels (1-203, 1-203', 1-203M, 2-203, 2-203A, 2-203B, 2-203C), and further cause multiple parallel obliquely incident light rays, which enter the micro-lenses (1-210, 2-210, 2-210A, 2-210B, 2-210C) from the external environment, to be incident at the exterior of all or part of the sensing pixels (1-203, 1-203', 1-203M, 2-203, 2-203A, 2-203B, 2-203C), so as to obtain an image of a target object (1-F, 2-F). The target object (1-F, 2-F) generates parallel normal incident light rays and parallel obliquely incident light rays. The normal incident light rays are parallel to multiple optical axes of the micro-lenses. The respective obliquely incident light rays and the respective optical axes form angles therebetween. Also provided are an optical sensing system (1-600, 2-100) using the optical sensor (1-200, 2-200, 2-200') and a manufacturing method of the optical sensor (1-200, 2-200, 2-200').
Inventors:
FAN CHEN-CHIH (CN)
HUANG CHEN-CHANG (CN)
FU TONG-LONG (CN)
HUANG YU-HSIANG (CN)
HUANG CHEN-CHANG (CN)
FU TONG-LONG (CN)
HUANG YU-HSIANG (CN)
Application Number:
PCT/CN2019/101805
Publication Date:
February 27, 2020
Filing Date:
August 21, 2019
Export Citation:
Assignee:
EGIS TECH INC (CN)
International Classes:
G06K9/00
Foreign References:
| CN107437047A | 2017-12-05 | |||
| CN207489034U | 2018-06-12 | |||
| CN104714614A | 2015-06-17 | |||
| CN102130138A | 2011-07-20 | |||
| CN205910951U | 2017-01-25 | |||
| US6643386B1 | 2003-11-04 |
Attorney, Agent or Firm:
LUNG TIN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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