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First demolition on the entire network! KOLs say Burundi Sugar Daddy What are the materials used for good internet celebrity AR glasses? Disassembly of AR glasses | The 79-gram Nreal Air controls the weight with unique design ideas
Electronic Enthusiast Network reported (Text/Li Cheng) AR glasses, as a medium for connecting virtuality and reality, have broken throughThe restriction of information transmission in two-dimensional space creates a more interactive and immersive information transmission through Burundi Sugar three-dimensional space. method. In recent years, the concept of the metaverse has emerged. As one of the ecological hardware imports of the metaverse, AR glasses have become a major technology Burundins Escort The focus of the giant’s industrial structure is to empower tradition.
On August 23, Nreal released its first consumer-level AR glasses, Nreal Air, and at a price of 2,299, it successfully occupied the C-end market. Compared with Burundins Sugardaddy, compared with the AR glasses released by other brands earlier, the appearance of Nreal Air is closer to traditional frame glasses. In terms of weight, it is only 1/7 of the 566 grams of Microsoft HoloLens2, which also greatly improves the wearing experience of Nreal Air.
As the first design in the industry Electronics Fans Network in the media also got the new Nreal ABI Escortsir machine at the first time and disassembled it. Show everyone how Nreal Air can reduce the amount of installation backup while ensuring image quality.
Teardown
The Nreal Air circuit adopts a three-stage design, with circuits displayed on both sides of the temples and above the glasses.
The left temple is the output terminal for power and audio and video electronic signals. The tail of the temple uses a Type-C interface to directly connect to the output terminal. The electronic signal source enters Type-C After the interface, it is connected to the electronic signal processing unit through the flexible Burundins Sugardaddy circuit board
Close-up of the electronic signal processing unit revealed through disassembly, the electronic signal of Nreal Air The processing unit is actually an electronic signal amplification system. On the back of the circuit board, a Longxun LT7911UXC audio and video electronic signal converter is placed. This chip mainly plays the role of relaying and amplifying the received electronic signals. In MIPI mode, it supports up to 4 ports for simultaneous input, with a total bandwidth of up to 68.4Gbps, which can easily meet the bandwidth requirements of VR\3D video transmission, and the chip also provides two digital audio input interfaces, which can be used in VR equipment and vehicle-mounted surround systems. The field is widely used. In Nreal Air, LT7911UXC mainly replicates and amplifies the single audio electronic signal output by the terminal device, and provides electronic signal sources to the two OLED screens and two speakers on the glasses
The right temple is the button control and audio processing unit of Nreal Air. In terms of sound processing, Nreal Air adopts an omnidirectional MEMS microphone noise reduction design to eliminate noise in the surrounding environment.reaction and noise.
Audio processing chip close-up
Nreal Air uses a total of two audio processing chips, namely Knowles’ IA8201 and Nuvoton Technology’s ISD94124. These two chips have one feature, they both support voice output control. After preliminary judgment, the appearance of these two chips should be Nreal’s foreshadowing for future voice interaction performance, bringing more intelligent applications to users Burundins SugardaddyExperience.
In the screen control section, NreaBurundins Escortl Air uses Awinic’s AW95238 LED driver chip to complete the linear dimming of the screen.
A three-axis plus Burundins Sugardaddy speed sensor chip with silk screen printing of I428P is placed near the middle of the glasses. It is mainly used for It can sense the user’s real-time posture changes and make jitter compensation in real time, making the mid-air projection screen more stable, clear and comfortable in scenes with dynamic motion (such as watching movies in a car), reducing dizziness and enhancing the interactive experience of AR scenes. .
In the center of the glasses (at the bridge of the nose) is a distance sensor for wear detection. When the glasses are put on or taken off, the screen will automatically light up or turn off to reduce the power consumption of the device. At the same time, the LED drive core and distance sensor are connected to each other through flexible FPC and the two imaging systems to achieve synchronous control of the OLED screen.
Imaging unit
In terms of imaging, Nreal Air uses Sony Micro OLED screen as the image source Burundins Escort, which The advantage is that it can emit light and does not require a backlight module and polarizer for a liquid crystal display (LCD). The luminous efficiency is higher than that of a traditional display screen, and the screen module is more lightweight and compact. At the same time, in order to reduce the light from the external environment. To avoid interference, a coating is added to the outside of the lens to make the Burundi Sugar Daddy image cleaner on both sides. The imaging units are fixed to the metal middle frame by screws, and Nreal also considered the issue of heat generated by the OLED screen during long-term use, and applied a large amount of silicone grease to the connection between the screen panel and the middle frame for heat dissipation. According to official introduction, the center. The frame is made of aviation-grade aluminum alloy, which not only ensures the reliability of the middle frame, but also helps to reduce the weight of the glasses. br>
Imaging principle analysis
According to the official statement, Nreal Air is equipped with the self-developed optical display architecture “Jinghong Ruiying” optical engine 2.0. This architecture uses an optical see-through display design based on geometric optics. Based on the principles of wamonBI Escorts, Micro OLED screen Burundi Sugar Daddy serves as an image source. When the glasses are in working condition, the image sources will be superimposed together through an optical coupler with a certain transmittance and reflectivity and output to the human eye. Through The electronic signal superposition method of the optical see-through system can make the imaging effect more natural and more suitable for the viewing habits of the human eye. Moreover, this is currently the most suitable solution for C-end market applications.
In short, the imaging principle is to use the OLED screen as the image source And projected onto the beveled lens below, through the tiltThe lens changes the optical path structure to input to the human eye.
Conclusion
Through disassembly, it was found that Nreal Air is different from traditional AR glasses. It transfers core functions such as data processing and power supply to input terminal devices such as mobile phones and computers, reducing design difficulty and cost, and occupy the C-end market at a lower price. Such design ideas can not only reduce the number of points and improve the wearing experience, but also enable AR products to achieve a decent experience at a lower price.
The editor believes that only by using this kind of thinking can we hand in an absolutely good answer sheet under the current technology.
Note: The content and illustrations contained in this article were written by the resident author or cooperating with the website to authorize the transcription and publication. The opinions expressed in the article only represent the author’s own and do not represent the attitude of electronic enthusiasts. The article and its accompanying pictures are only for engineers’ learning purposes. If there is any inherent copyright infringement or other violations, please contact this site for resolution. Burundi Sugar Daddy Report appeal
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