Application of Optical Fiber Panel in Fingerprint Device


Release Time:

Are you ready for the explosion of fingerprint sensors?

  • introduction
  • In October 2014, the market research company HIS predicted that by 2020, the global fingerprint sensor market would grow nearly four times to nearly $1.7 billion. Most of the growth will come from Asia, especially China. In 2013, the global market for fingerprint sensors for mobile phones and tablets was only US$500 million, and it is reasonable to believe that many competitors are gearing up to enter this growing market. In fingerprint sensor, how to choose between optical sensor and capacitive sensor? How to achieve miniaturization, low cost, and high resolution? The use of fiber optic panels will solve this problem for you!

 

Application and Technical Advantages of Optical Fiber Panel in Fingerprint Identification Technology

 

  • Principle structure of fingerprint acquisition module using fiber optic panel

As a collection window component, the fiber optic panel has the function of 1:1 high-definition and high-fidelity transmission of fingerprint images, and its image transmission effect is as realistic as a finger directly pressing on the image sensor.

everything

 

  • Compared with common fingerprint collection technologies on the market

The Performance Comparison of Fingerprint Acquisition Technology Using Optical Fiber Panel and Other Acquisition Technologies

compare items

Traditional Optical Technology

silicon chip technology

(Capacitive)

ultrasonic technology

(RF type)

with fiber optic panels

Fingerprint Collection Technology

volume

middle

small

Big

small

structure

Simple

complex

complex

Simple

resolution

>500dpi

>500dpi

>700dpi

>500dpi

durability

durable

easily damaged

generally

durable

power consumption

less

generally

more

less

cost

Low

middle

high

Low

imaging capability

generally

(dry fingers are poor, sweaty and slightly dirty fingers are blurred)

stronger

(Sweaty and slightly dirty fingers cannot be imaged, and dermis imaging is required)

powerful

powerful

(Need to keep fingers clean)

Safety factor

Low

middle

high

higher

  • Structural principle of optical fiber panel

 

  • Fiber Optic Faceplate ( FIBER OPTIC FACEPLATE )

Optical fiber panel (referred to as optical fiber panel) is a functional glass product made of a large number of optical fibers that are arranged in parallel, melted and pressed, and optically cold-processed. It has the function of high-resolution image transmission.

It can transmit the optical image on one side to the other end with zero optical path (zero thickness), as shown in the figure;

Application of Optical Fiber Panel in Fingerprint Device Application of Optical Fiber Panel in Fingerprint Device

      The resolution of conventional optical fiber panels reaches 4200ppi , and products with resolution ≤ 6000ppi can be customized according to customer needs, and the external dimensions can be customized according to customer requirements.

  • Optical fiber panel structure schematic diagram:


 

Application of Optical Fiber Panel in Fingerprint Device Application of Optical Fiber Panel in Fingerprint Device
Application of Optical Fiber Panel in Fingerprint Device Application of Optical Fiber Panel in Fingerprint Device