Glasses of virtual reality: the device, the operating principle, the purpose and function

Points of virtual reality - a popular device that turns ordinary video, image, game in spectacular 3D world. Modern helmets cover many functions, supports work with any gadgets.

The device and principle of operation

Externally products presented a box, where the basic elements - lenses or plastic housing, which is divided by a partition screen controller.

Here comes an image for each eye separately, which creates a virtual reality. The inner side is equipped with pads breakage test. Devices equipped with USB output, DVI, HDMI.

Under the monitor board sensor is low latency. The housing is equipped with special holes to the lenses did not sweat.

Points virtual reality displays images with a 3D effect. The principle of operation is based on aspherical lenses. The device fits securely on your head, is adjusted as necessary.

Each eye sees the image in the same way as for normal vision, but different angles are used to create a virtual effect.

To be able to look around on the sides of glasses equipped with a gyroscope sensor ─ that tracks head turns.

Purpose and functions

appointment

• Watching movies in a format 180, 360 degrees.
• Video marked as virtual reality.
• The use of 3D-games on your smartphone or computer.
• Browsing the video in 2D.
• Scans of real people, 3D-images.
• Games and applications marked as VR.

functions

• Accelerometer. A sensor fixing acceleration. It determines the position of the body in space is tracking shakes, jerks. Points for the phone sometimes, too, are equipped with a sensor that plugs into a special slot.
• Gyroscope. Built-in element controls direction, speed, angle of view. The sensor ensures total immersion in virtual reality at the turn of the head. In stand-alone models gyroscope built into the glasses.

How to choose a virtual reality glasses

important parameters

Resolution

The value depends detalizirovanie and flatness of the image. Resolution is indicated for one or both eyes at once. Therefore it is necessary to clarify what exactly is meant by this parameter.

viewing angle

Usually indicated by the horizontal visibility. The magnitude of the angle depends on the image viewing comfort. But do extensive angle pointless, since the structure of the eye does not allow to cover it. Therefore, an angle of 90 - 110 degrees is considered sufficient.

Frame frequency

Continuity and smoothness of the image is caused by the fast frame rates. The high frequency characteristic of more expensive devices. Frequency parameter should match the incoming video signal, or interference occurs and deterioration.

Headphones

Options include own headphones. Sound immersion complements the image on the screen. The mobile versions are most commonly used headphones a smartphone.

Devices with displays are often equipped with built-in speakers in the housing, which is convenient and does not require extra costs.

Headfit

The design is attached by elastic straps are adjustable for head size. Without mounting options are available plain cardboard.

housing material

• Plastic. The composition is characterized by ease, simplicity. Material distributed to the models in different price ranges.
• Cardboard. The basis of the housing consists of a dense thick paper, which ensures a low cost of the device. Sold glasses folded, they need to put yourself as a designer.

Material eco-friendly, easy, but fragile. Easily deformed during transportation or mechanical impact.

• The cloth. The housing is made of thick durable fabric. The device is more expensive than cardboard, but cheaper than other types of materials. When operating points reliably pleasant due to the soft inserts at the point of contact with the head.

Remote control

Equipping remote control makes the work with the glasses easier and more comfortable. Some functions of the instrument is inconvenient to adjust during use, when the article is fastened to the head.

Instruction set is different, is considered the most popular gamepad. Some models are equipped with a video player control.

secondary options

control type

• Push-button. At the heart of regulatory functions are common buttons that are easy and simple to work in the device menu. But they are inferior to the touchpad on the accuracy.
• Touch. Is controlled by a touch panel on the side of the product, which works on the principle of the touchpad notebook.

Added some special gestures, moves the cursor with your finger. Touch control increases the cost of the device.

Features better subject

To choose the best item, you must determine which device points are intended. The standard design includes a built-in monitor.

Specifications subject better

• The viewing angle of 360 degrees.
• Compatible with smartphones, PCs, set-top boxes, TVs.
• Adjust the distance between the centers and the focus lens.
• Built-in camera, headphones.
• Remote or the joystick.
• Components sensors.

Plus the best of the subject

• Range of applications, games.
• Reliable fastening of the smartphone.
• Stylish design.
• Storage case.
• Additional lens vision correction.
• No flicker and twitching.

Cons better subject

• High price.
• Heavy weight 400 grams.