When we mention VR glasses and VR devices, we think of Oculus Rift, HTC Vive and Sony PSVR for the first time. In fact, domestic VR equipment is gradually gaining popularity, such as IDEALENS K2 mentioned today. As a company under IDEALSEE Group, IDEALENS focuses on VR devices, systems, content and other products. Song Haitao believes that VR devices have four core technologies: wearable technology, dynamic response technology (low latency), position tracking technology (human-computer interaction technology) and large field of view optical technology. IDEALENS VR equipment focuses on these four technologies.
High dynamic response technology: IDEALENS K2 refresh rate has reached 90Hz, dual OLED screens are used, and low afterglow. At the same time, IDEALENS emphasizes that the VR device should control the delay sufficiently low, and the minimum delay of IDEALENS K2 is 17ms. At present, the industry standard is basically passed within 20ms. For users, the brain and vision will not feel obvious delay until it is below 20ms.
Motion tracking and location tracking: As the author reported in the previous newsletter, except that HTC Vive uses real location tracking technology, other VR devices rarely add location tracking. IDEALENS uses the location tracking technology developed by itself. The specific location products have not been officially launched. After the launch, Leifeng will further evaluate the experience.
Large field of view optical technology: this is also the core technology of IDEALENS, and has applied for a number of patent protection. According to the data released by IDEALENS, the highest visual angle of VR is 120 °, that is, IDEALENS K2. The upcoming IDEALENS K3 can expand this angle to 180 °, and announced a performance monster product with 180 ° visual angle at the Chinese press conference. For comparison, HTC Vive and Oculus CV1 are 110 °, and Samsung's latest generation Gear VR is 101 °.
Wearing design: Unlike Magic Leap, which mainly runs on PCs, IDEALENS K2 can run independently of PCs and mobile phones. It does not need to assemble a high-end PC like HTC Vive to use it. The rear design of the battery compartment and the golden spiral design make the center of gravity move backward, and greatly improve the wearing comfort and portability.
We compare the parameters of the three versions of IDEALENS VR devices horizontally. The IDEALENS K2 hardware configuration is much more upgraded than before. The screen has also changed from LCD screen to OLED screen with higher refresh rate.
Exynos 8890M (standard version) and Exynos 8890 VR version specification comparison
It is worth mentioning that the processor of IDEALENS K2 Pro is not the Exynos 8890M of smart phone, but the Exynos 8890 VR version. The difference between the two is shown in the figure above.
appearance
As shown in the figure above, the mass production version of IDEALENS K2 is quite complete with accessories, but the only accessories we received are headgear and portable bag, so we use a similar 5V/2A mobile phone quick charger to complete the charging experiment.
The earphone we use is one plus tremella 2, which works well with VR glasses. However, the 3.5mm connector is slightly loose when inserted into the earphone hole, which always feels insecure, but does not affect the actual hearing. According to the manufacturer, the production version has improved the problem of loose earphone holes.
The touch of all physical keys is fairly good. As for the sensitivity of the touch pad, I use the function of resetting the perspective of the touch pad most, which is easy to use.
The above is the internal workmanship of the official promotion, which is solid on the whole. Next, let's take a look at the actual product shooting appearance.
IDEALENS K2 host part (not including the wearing scheme) is 295g. Move the battery design near the rear headrest, balance the weight of the front and rear parts, keep the overall center of gravity in the center of the head, improve the overall wearing comfort, and avoid shaking caused by the absence of headband. Compared with HTC Vive, the obvious change of IDEALENS K2 is that the weight is reduced, the comfort on the head is better, and the pressure on the neck is very small.
The experience effect of wearing glasses is OK. Because the material contacting the face is soft and silky, the position of touching the eyeglass frame and face is comfortable, and the squeezing on the opposite side of the eyeglass frame is not serious. On the other hand, there is a certain distance between the eyeglasses and VR eyeglasses, which will not rub against each other. As for the visual experience, it is OK. Although there are glasses blocking it, the VR content is still highly restored, without reducing the display effect.
IDEALENS K2 adopts the 3D immersive interactive system IDEAL VR OS, which is based on the native Android 6.0 system, and has a built-in VR App Store application store and global payment system. After entering the system, options to enter the setting interface appear in the lower right corner. Click it, and the corresponding setting options are shown in the following figure.
Practical experience - online video and local video
Select the "..." pattern in the upper right corner of the movie to enter the theater mode setting interface. There are roughly three modes: 2D, 3D and 360 °. 360 ° playback mode must be selected for 360 ° panoramic video. The details are 360 ° (up and down), 360 ° (left and right), and 360 ° (normal) depending on the video. Generally, I choose 360 ° (normal). 3D video is divided into 3D (up and down); The specific 3D (left and right) mode is selected according to the video type. Only 2D and 3D modes will appear: submarine cinema, space cinema, giant screen cinema play theme, 360 ° play mode will run under the giant screen cinema theme by default. IDEALENS K2 will automatically classify the source types (2D; 3D; 360 °) according to the algorithm, with an automatic recognition accuracy of more than 95%. If there is still an error, manual correction can be used.
After reading the theoretical part, we talked about the actual user experience. In 360 ° panoramic mode, the text of most VR videos can be seen clearly, but the graininess of the images has also increased. Due to the limitation of current screen resolution, it is difficult to reach the retinal screen level of mobile phones. Although the overall screen resolution has reached more than 2K, the resolution of monocular imaging is still not high enough, so there will be a slight graininess, and the overall definition is acceptable. Of course, the visual effect is also related to the quality of the film source. Some videos look very clear, while others are slightly blurred.
There are three themes for 2D video playback: submarine cinema, space cinema, and giant screen cinema. In addition to panoramic videos, a large number of 2D videos can also be viewed in VR devices through online or local downloading. The visual effect is different from the sense of computer or TV. It feels closer to the eyes and has a larger field of view.
There are 12 local videos in K2, which can be downloaded locally via data cable or SD card. On the other hand, online video resources are provided by 15 companies, including Migu Cinema, Youku, Sohu Video, Huashu, VR Hot Broadcast, and UtoVR. The latest system has been launched on 8 platforms, including 8 types of movies, including action, plot, comedy, science fiction, horror, animation, crime, and others. The number is quite sufficient. In terms of 2D film sources, for example, action films include returning to the Jurassic and the Lion King, feature films include Doraemon and Destiny, comedies include the Guinea Pig Secret Service and Kung Fu Panda, and science fiction films include the Return of the Great Sage of Journey to the West and Star Trek.
Practical Experience - Games
According to the information provided on the official website of IDEALENS, the app store will continuously update more than 100+VR games, 1000+VR videos and 35000+videos.
The engineering version of IDEALENS K2 has 20 games and 3 applications in the app store. The mass production version has the first batch of more than 20 games online. Later, the resources of the app store have been gradually increased in the app store. The degree of localization of VR games is not too high, most of which are English interfaces and prompts, but it is not difficult to get started because the operation is not complicated. The three application resources are home design demonstration, driving school tutorial and physical chemistry experiment demonstration. The driving school course is relatively simple, with only three Demos.
Space trusters: This is a shooting game. Although it only needs to click the touch pad, and the rotation range is not large, the overall vision is wide, and the stereoscopic sense is strong. However, the perspective is not horizontal. It takes a long time to keep your head down during the game, and you cannot adjust the perspective by pressing the touch pad for a long time.
Lamper VR testing: Similar to the problem of the perspective of Space trusters, when the little bee was in the normal orbit and perspective during the flight, it automatically deviated from the main orbit after playing for a while, forcing the user to turn around with the screen. However, because it is only a beta version, it is not ruled out that the bug will be fixed later.
Mega Space Hole: It's a simple shooting game, but it needs to coordinate with the head to rotate from top to bottom, left to right, and to a large extent. Some areas are blind areas, so it's difficult to shoot.
VR BOWL: just remote control the head game, use the partition to block the default sphere so as to bounce and hit the smiley face position or intercept the ball with a special color to obtain points. If the ball escapes once, the corresponding points will be deducted. If the ball is not allowed to enter the tunnel, the corresponding points will also be deducted. Press and hold the touch pad to adjust the viewing angle.
Dragon and Desert Island: Control the head rotation to aim and shoot. Just long press the touch pad to shoot. The story is short and only three rounds will complete the game.
Endurance performance
IDEALENS K2 only comes with a 5V/2A certified charger, but it supports up to 3A fast charging technology. The power consumption of the Exynos 7420 platform is a bit fierce. Just look at the local video and online video. The remaining 25% of the power was less than 10% of the power after watching the video for less than an hour. Then the system will alarm that the power is insufficient and prompt that it needs to be plugged in for charging. In terms of game power consumption, about 20% of the power is lost in an hour, and occasionally stops to flip the page, switch to other games, and also stops to download games. Therefore, if the game is played all the time, the power consumption will be relatively high. However, in view of the large power consumption of most VR devices, the endurance performance of IDEALENS K2 is fairly good.
The charging speed is acceptable. Even if the 5V/2A charger is used for testing, less than 10% of the battery will be fully charged within two hours. Although the endurance performance continues the traditional style of the Exynos 7420, the heating is not serious. This VR device has a cooling air duct design, so its cooling effect is better than that of the Samsung S6.
summary
The overall performance of IDEALENS K2 is commendable. The delayed response, refresh rate and wide viewing angle (120 °) performance are OK. In terms of endurance, the power consumption speed of IDEALENS K2 is moderate, but the charging speed is OK. The most important thing is that the heating is not obvious, which is mainly concentrated in the upper left corner of the front (taking the position after I wear glasses as a reference). As for the appearance and wearing comfort, IDEALENS K2 performs quite well. The design of the rear battery compartment and the golden spiral makes the body light and easy to wear. It also supports myopic people to use glasses after wearing glasses. This design scheme is also the first example of performance and has certain guiding significance for the VR helmet industry.
Warm tip, remember to clean the lenses with the accompanying lens cloth, otherwise the use experience will be affected.
