VR device literacy and paper shell VR software recommended

2016 was the first year of VR, and an endless stream of VR devices stood out. Both large and small companies want to share this cup. In today's prosperous market, many people still don't know much about VR, and they don't even know what vr is. This article will literacy vr technology and equipment!

Remarks: I am not a professional in the VR industry. The opinions in the following are personal opinions. Do not like not to spray!


table of Contents

> vr Introduction

> vr classification

> Purchase suggestions

> Current vr resource classification

> Tray vr software recommendation

> Conclusion

----------

Vr Introduction

Vr is a shorthand for Virtual Reality, and Chinese means virtual reality. Speaking vernacular is to use a device to let your vision, hearing and even touch in a scene, to experience an immersive feeling.

Vr technology can be applied to all walks of life, such as:

- VR game allows me to be in the real battlefield and experience the feeling of hail.

- When you buy clothes, you can use vr to watch the effect of clothes on your body, without the need to try to change clothes

- Travel, stay at home, experience 360° scenery

- wait wait wait


Vr classification

2016 was the first year of VR. Major and small manufacturers started to enter the vr market. From the vr resource recording, vr resource playback (software/hardware) pits both sides, excavating its value.

At present, most manufacturers are trying to get involved in the playback of vr resources. There are HTC vive, Sony PS vr, and Google VR in the world; there are domestic millet vr, storm mirrors and so on.

↑ Google box

↑htc vive

↑Sony ps vr

According to the playback principle can be roughly divided into the following two categories:

1. Without a screen, only with a lens, the need for a mobile phone as a screen and play source (no space concept)

Such as millet vr, Google VR, Storm mirror and so on.

This vr is generally more than 80, it is not recommended to buy, their principle and use of effects and Google's carton vr no difference, the earliest mass production is Google's carton vr

↑ Google vr into mobile phone


2. With a screen, need a PC and other equipment to play (some with space concept)

For example HTC vive, SONY PS vr and so on.

This vr is equipped with a screen that requires external input devices, like screen input resources. For example, HTC needs a PC as an input source. SONY PS vr requires a PS4 game console as an input source.

These vr experience effects are higher than the carton VR mentioned above by N levels.

↑ VR device with screen



Space concept

1. There is space: Through the camera and other auxiliary equipment, you can perceive the user's position in space. For example, if you are in front of a wall, you will see a virtual wall in vr. Or there is a cat in the picture, you can walk around the cat by walking around with real people. In short, it gives you an immersive experience. Like HTC vive, sony psvr,

2. No space: When using vr, vr will only change the picture after your head changes. Like millet vr, storm mirror. The movement of the user back and forth and left and right does not interact with the vr.

空间 HTC vive space concept, can interact with players in the designated area


Purchase suggestion

Or that sentence, do not say what price, a penny goods.

- Well-funded, want to experience a complete immersive vr, buy htv vive, sony psvr

- Limited funds, just want to experience vr concept, choose millet vr, storm mirror, or their own google open source design diagram to make a paper shell vr device is also ok

My own choice:

1. Equipment:

I am looking forward to sony's ps vr (price of 2999 yuan), because as long as there is a ps4 (about 1999 yuan) can experience vr. Has already grabbed the first batch of prequalification qualifications. Like the HTC vive (sale price 6888 yuan), of course there are hidden costs, you need at least a host of 8,000 yuan to perfect experience. Therefore, the total cost of experiencing HTC vive is around 10,000 oceans. However, HTV vive is currently recognized as the best VR device for experience.

2. Resources

Thanks to the SONY playstation platform, I believe ps vr will be more popular than htv vive in the future.

--------------

Ppi and screen fineness

Whether the VR display device is clear or not, one of the more critical parameters is ppi.

In simple terms, the same resolution of the screen, the smaller the size, the higher the ppp, the finer the picture quality you see.

For example: 3 1080p resolution mobile phones, the screen size distribution of 5.5 inches, 5.0 inches, 4.7 inches.

These three devices act as display devices. Using millet vr, the best effect is surely 4.7 inches. When using a 5.5-inch device, it can clearly feel the presence of pixels.

↑ different ppi contrast

Therefore, when selecting a tray vr device, try to select a device with a high resolution and a small screen size to have a better experience!


Current vr resource classification

Mainly divided into 2 types

1.360° full immersive video, true vr

The picture can be rotated following the rotation of the head, and a 360-degree panoramic picture can be seen.

2.180 ° / up and down video, fake vr

Can only see up to 180 degrees in front, such as a lot of domestic vr software in the vr theater mode, after opening, is in front of you have a small-size screen, so you have a kind of feeling in the cinema watching movies. This is just to deceive consumers, is not vr at all, to use this effect, I do not think good at home projection.

3. Interactive games, true vr

Immerse yourself in a virtual scene and interact with the game based on the phone's operation


Carton vr software recommended

Since the PS vr is not available for sale, the htv vive I experience is a company asset and there is no more information available on the resources.

The carton vr device used Google vr and millet vr, so only the tray vr software is recommended.

Homemade vr software

> Millet vr

> Storm Mirror

> Orange vr

> 3D broadcast

> vr hits

These domestic apps have a lot of resources, but their quality is terrible.

- 360° full immersive video, true vr resources

This makes video resources not only less, but also very low in definition. These video resources actually support online playback, and you can think of how bad the video quality is. A VR video that passes 10 minutes or so requires at least 1G to be able to see the relative cleaning. These online video vr videos are estimated to have no 100m. . .

- About 180°/up/down video, false vr resources

These video resources occupy 80% of the domestic app video source. Basically, the online movie is divided into two screens, and a simple distortion processing is put on it. In the video of some apps, the watermark of the XX subtitle group can also be seen. . . Again, to use this effect, I'm not optimistic about home projections.

-------------------------------

Foreign vr software

Comparing the high yield and low quality of domestic apps, foreign apps are more conscientious. Let's focus on the following.

Cardboard - Google's official vr application

In google play can search, users can not over the wall, you can search in cool network. (domestic android market, only recommend Coolan, one of the best is not)

↑Cardboard display main page, you can choose to enter into different functions

↑VR Earth Google Earth

Using Google Earth data, users can fly freely in different cities and experience 360° panoramic views of the city. Users can operate the entire process, like Superman into the ground.

↑ 360° panoramic photo appreciation

Try this 360° panoramic photo, any one photo resolution spikes any domestic app!

↑ Crafts appreciation

Depending on the viewing angle of the user, the arts and crafts will rotate 360°, really like holding this artwork in the museum.

↑VR Technology Overview

Using a complete VR interactive experience program to interpret the application of VR technology in different aspects is very good and an eye-opener.

↑ Other high quality applications

Google also recommends some high-quality official apps for everyone to download.


Within

Within is a vr aggregation platform. The content of the vr is not much, but the quality is very high. In addition to being able to connect the vr box, it can also be connected to steam.

↑within main page

The page is very simple, displaying the aggregated vr video resources directly, and looking at these posters is very tall.

↑Video details page

Due to the high video quality, videos are almost all 1G in size. All of them can only be downloaded for viewing, and online playback is not supported.

↑ Playback screen, all operations before and after playback are the same as Google Cardboard, used


NYTvr


The app is an app that specifically makes news content vr video.

↑nyt page

Pages and interactions are the same as those in the above within, once again not described in detail.


Conclusion

Faced with a dazzling array of vr markets, I hope this article will give everyone a simple literacy.

Finally, look forward to the upcoming SONY ps vr, which will be the first time for everyone to evaluate!

Fiber Optic Attenuator

Fiber optic adapters are typically used to connect two fiber optic cables together. They come in versions to connect single fibers together (simplex), two fibers together (duplex), or sometimes four fibers together (quad). Adapters are designed for multimode or single-mode cables. The single-mode adapters provide more precise alignment of the tips of the connectors and can be used to connect multimode cables. The reverse is not suggested as this might cause misalignment of the small single-mode fibers and loss of signal strength (attenuation).

Optical attenuators are commonly used in fiber-optic communications, either to test power level margins by temporarily adding a calibrated amount of signal loss, or installed permanently to properly match transmitter and receiver levels. Sharp bends stress optic fibers and can cause losses. If a received signal is too strong a temporary fix is to wrap the cable around a pencil until the desired level of attenuation is achieved. However, such arrangements are unreliable, since the stressed fiber tends to break over time.

Types:

Optical attenuators can take a number of different forms and are typically classified as fixed or variable attenuators. What's more, they can be classified as LC, SC, ST, FC, MU, etc. according to the different types of connectors.


Sijee provides different types of Optical Fiber Attenuator, Fiber Optic Attenuator, Fiber Optic Fixed Attenuator, FC Fiber Attenuator.

Optical Fiber Attenuator,Fiber Optic Attenuator,Fiber Optic Fixed Attenuator,FC Fiber Attenuator

Sijee Optical Communication Technology Co.,Ltd , https://www.sijee-optical.com

Posted on