IPhone X let the technology of fire

Apple every time a shot, often driven by the development of a industry. In 2013, Apple released the first mobile phone equipped with apple iPhone 5S fingerprint recognition, and fingerprint recognition technology in the mobile phone brand ushered in the outbreak, from the flagship machine quickly spread to thousands of machines.

However, over the past 4 years, apple began leather fingerprint recognition in life, iPhone X Face ID (ID face) instead. The so-called Face ID, is a set of 3D face recognition scheme is the core technique of 3D sensing technology. 3D face recognition has a higher security and application potential compared with 2D.

In simple terms, the working principle of this scheme is: dot projector (structured light emitter) more than 30000 projected infrared light spots are not visible to the naked eye, covering the entire face, the collection of these spots is drawn into the infrared lens face image with depth information. The front camera is responsible for obtaining 2D images, common stereo image synthesis 3D. When will unlock each image and store the collected images in the mobile phone processor for comparison, decide whether to verify through.

We have just said infrared light, which is the key to discuss today. This apple is using infrared light source VCSEL (Vertical Cavity Surface Emitting Laser), the vertical cavity surface emitting laser.

Early 3D sensing system generally uses LED as infrared light source, but with the maturity of VCSEL technology, the price has been close to infrared LED. And in the aspect of technology, because the LED does not have a resonant cavity, resulting in more divergent beam, the coupling is weak, while the VCSEL in precision, miniaturization, low power consumption and reliability of all aspects of dominant situation, now the common 3D camera system generally adopts VCSEL as infrared light source.

In view of Apple's appeal, it is reasonable to guess on the screen instead of the hidden fingerprint recognition technology matures, based on face recognition 3D sensing technology is likely to be a fire, VCSEL will also benefit.

Of course, in addition to VCSEL and broad use, including AR smart glasses, smart driving laser radar and so on. In 2018 LED market prospective analysis of the upcoming meeting, senior industry expert Ye Guoguang on VCSEL related issues for detailed discussion, welcome to attend! In addition, analysis and discussion of the conference will include many LED hot topic, the details please refer to the bottom of the agenda. The meeting will be held in Shenzhen in December 21st, the deadline is 18 days.

Analysis of basic information

Date: December 21, 2017 (Thursday)

Time: 13:00-17:20

Location: Shenzhen City, Guangdong Province, Futian District Shennan Road No. 6005 JW Marriott Shenzhen 3 floor Jinmao Ballroom

The number: 600

The organizer:

Note: This is a free event, and take for the examination system. Would you please fill out the online basic data, complete the registration, you will see the message successfully registered on the website, said we have your registration data, through the review of the party in the VIP receive system sent confirmation within 3 working days.

Analysis of agenda

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