Optical identification module

A technology of optical recognition and light-transmitting substrates, which is applied in biometric recognition, character and pattern recognition, and multiple biometric recognition applications. It can solve problems such as light beams easily scattered and transmitted to sensors, affecting recognition results, and poor image quality. Achieve the effect of easy production, reduce production cost, and improve image resolution

Pending Publication Date: 2021-05-07
GUANGZHOU TYRAFOS SEMICON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the light beam reflected by the object to be measured is easily transmitted to the sensor scatteredly, resulting in poor image quality and affecting the recognition result

Method used

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  • Optical identification module
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Embodiment Construction

[0040] In the drawings, each figure illustrates the general characteristics of methods, structure and / or materials used in certain exemplary embodiments. However, the drawings are not limited to the structures or characteristics of the following embodiments, and these drawings should not be interpreted as defining or limiting the scope or nature encompassed by these exemplary embodiments. For example, the relative thicknesses and positions of layers, regions and / or structures may be reduced or exaggerated for clarity.

[0041] The use of similar or identical reference numbers in the various figures is intended to indicate the presence of similar or identical elements or features. Similar reference numerals in the drawings designate similar elements and redundant descriptions thereof will be omitted.

[0042] The optical recognition module listed in the following embodiments is suitable for acquiring the biological characteristics of the object to be measured. The object to b...

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Abstract

The invention provides an optical identification module which comprises a sensor and a collimator. The sensor has a plurality of sensing regions. The collimator is arranged on the plurality of sensing areas, and the collimator comprises a light-transmitting substrate, a first light shielding layer and a plurality of micro lenses. The first light shielding layer includes a plurality of first openings. The plurality of micro lenses are arranged on a first surface of the light-transmitting substrate, and the plurality of micro lenses respectively correspond to the plurality of first openings.

Description

technical field [0001] The invention relates to an optical module, in particular to an optical identification module capable of identifying biometric features. Background technique [0002] With the vigorous development of Internet of Things technology, the application and demand of biometric technology is expanding rapidly. At present, the common biometric technologies on the market mainly use optical, capacitive or ultrasonic methods to identify biometric features such as fingerprints, palm prints, vein distribution, iris, retina or facial features, so as to achieve the purpose of identity recognition or authentication. Compared with the recognition module that recognizes biometric features by capacitance or ultrasonic waves, the optical recognition module that recognizes biometric features optically receives the light beam reflected by the object to be detected through the sensor to identify biometric features, so it has high durability and The advantage of low cost. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1318G06V40/70G06V40/14
Inventor 李俊佑傅旭文
Owner GUANGZHOU TYRAFOS SEMICON TECH CO LTD
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