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Smart glasses are the next new innovation in the field of wearable smart technologies. They have the ability to bring the technology in our smartphones directly to our eyes and corners. In 2013, Google introduced the first smart glasses. Google Glass Explorer eventually became a commercial failure but since then. Numerous companies have launched their own version of smart glasses, and this field is always growing and becoming more exciting. Stay up to date with technology.

What are smart glasses? The

The term “smart glasses” refers to devices that bring technology to the screen. Which can be displayed on or reflected on lenses, or it can be a separate component that provides information to the user without distraction when it is not needed.

Smart glasses work just like what you see in some science fiction movies. Hence the purpose of smart cameras is to enable wireless communication with the outside world for the eyes. They have great features like touchless control, volume control, and a variety of lenses. Imagine being able to watch movies, surf the web, or read a book on YouTube, wherever you are, without anyone around you realize what you are doing. This may seem strange at first glance, but in any case, it is a picture of the near future!

What is the difference between virtual reality and augmented reality?

As smart glasses grow rapidly closer to our imaginations of the future, marketing teams use new words like MR, VR, AR, and XR to sell their products.

Augmented Reality (AR): Augmented reality creates an interaction between the real world and the screen of the user’s device, which in smart glasses, this image will be displayed on the user’s eye. In fact, the image of the real world you see in the camera can be adorned with virtual objects on the monitor! Imagine Pokemon Go or Harry Potter Wizards Unite; The only difference is that this game can only be seen by yourself and the Pokémon around you. Another example of augmented reality is Snapchat and their augmented reality project LensStudio.

Virtual Reality (VR): Virtual reality usually removes the outside world and takes you to a virtual world where you can interact with the objects and environments of that world. The various devices that work with VR are devices such as the HTC Vive, Google Cardboard, and the Oculus Rift.

Combined Reality (MR): This is likely to be the future of virtual reality and augmented reality. Both of these technologies combine to allow you to see the real-world components of your surroundings along with augmented reality elements in the other world. Microsoft is working on a combination of reality with a project called HoloLens that allows users to view a virtual hologram in a fixed 3D position in front of them.

What are the components of smart glasses?

For smart glasses to function similarly to smartphones and other devices, they must be easily controlled, have multiple sensors, and produce visual and audio outputs. Here are the practical parts of smart glasses and how they work.

Audio capability

Smart glasses can make calls or watch videos. This function, and many similar functions, require the audio output to be possible. Instead of using speakers, some types of smart glasses transmit sound through bone conduction to the cochlea (ear bone) rather than through the air. This involves sending vibrations from the spectacle frame to the cochlea through the skull and bypassing the eardrum. The

Microphone

Most smart glasses have a small microphone that can record your voice and the sounds around you. This is essential for smart glasses that have the ability to control sound, call function, or record video with sound. The

Processor

Like any other computer, smart glasses require a central processing unit (CPU). This processor is usually held in one of the frame arms, so it should be small. Usually, the CPU is similar to a smartphone processor. The

Human-Computer Interface (HCI)

This is how a person controls their smart glasses. The human-computer interface must be applied to the glasses, meaning that common controls such as a touch screen or a computer mouse are inappropriate for communication. Instead, smart glasses can be controlled with one or more combinations of the following:

• buttons
• Speech recognition
• Gesture recognition
• Eye-tracking
• Remote control (via smartphones)

Lenses

Like regular glasses, many smart glasses can be equipped with different types of lenses. These lenses can be prescription lenses (for poor eyesight), blue light filter lenses for computer use, or smart lenses that darken depending on the ambient light conditions. The

Camera

Many smart glasses require a camera. The first glasses, Google Glass Explorer, were attacked because they constantly recorded the activities of people around them, creating an important legal and ethical problem for any smart glasses. Also, the camera is used for filming and analysis with mirrors so that it can use augmented reality. Hence some newer smart glasses do not have a camera and only have audio capabilities.

Challenges of making smart glasses display

The most challenging part of the development of smart glasses so far has been the display. Let’s take a look at some augmented reality display technologies in smart glasses. There are two main types of displays for smart glasses. The first is the curved mirror screen and the second is the waveguide screen. A curved mirror works by placing an image on it that reflects light directly to the viewer’s eye. The problem with the curved mirror approach is that the device has to be raised, and the image is less sharp or sharp. Waveguides, on the other hand, are a collection of newer technologies. These include:

• Differential waveguide

• Wave on holographic

• Reflective waveguide

• Virtual Retina Display

The waveguide works with the projected bending light in front of your eyes to display a visual field (including three-dimensional augmented reality objects). Light is transmitted through a piece of plastic or translucent glass, which is designed to reflect light along with the material. It is then projected in front of the eye along the waveguide and finally places an image directly on the eye. The

One of the problems with waveguides is the limited field of view they provide. The HoloLens waveguide, for example, provides a field of view of 30 to 50 degrees, while normal human vision is about 220 degrees. There are some claims about waveguides with a field of view above 100 degrees, but none of them have yet passed the theoretical proof stage. The main problem is that increasing the field of view means increasing the size of the waveguide and the protrusion of the glass. The

Another challenge is the sharpness of the images. Smart glasses should have a high-resolution screen to be realistic and specify details (such as text). The challenge is that, unlike a screen that you can see directly, smart glasses have a sophisticated optical system that can reduce the resolution. In addition to other problems such as color accuracy and real-world distortion, creating a high-quality display is challenging. The

What can smart glasses do?

Smart glasses have been in the news for many years. One of the milestones of smart glasses in 2012; There was a time when Google announced the development of Google glasses and the unveiling of the Microsoft HoloLens.

Smart glasses are a product that still needs to evolve and be further developed. Also given the potential of these computing devices, there is no doubt that in the near future they will be used in more applications or even on a daily basis. Also smart glasses, like regular glasses, can do many different things. Therefore there are glasses that change the lens according to the external environment, some allow us to take pictures of what we see and we can publish them on social networks, and others we can define as a small version of our phone screen. The

Also Like other devices, not all models of smart glasses use the same technology. We can find models with a variety of cameras, GPS sensors, wireless modules for data transfer, buttons, microphones, and more. The user can communicate with the system in different ways depending on the model of the device, such as sound, signs or swiping fingers.

What are the uses of smart glasses? The

Smart glasses have a promising future and can have many applications in various fields:

• These glasses are slowly appearing in the industry and helping employees to be more efficient and improve their work every day. The use of smart glasses in complex assemblies in factories allows the operator to see step by step the parts that need to be done to perform the process and how to do them. This leads to significant improvements in quality, efficiency and production cycle time.
• Also In the realm of security, thanks to capturing images through smart glasses, we can compare them to a database at any time to find what we need. Chinese police use this method to find and track down suspects.

• A very special application of smart glasses was an application created by a firefighter named Patrick Jackson. Which allowed the user to see the plans of the buildings at any time or to find a fire hydrant nearby.

• On the streets and with the help of augmented reality , focusing your eyes on an institution. We collect all relevant and relevant information on the web, such as criticisms of its performance or the like.

• Another example of the use of smart glasses is the issue of advertising. For example, just by looking at the advertising poster of a movie, we can see the trailer.

• Voice commands are an essential part of smart glasses devices, as many smart glasses are controlled by our voice. Some of the features that come with it include making calls, taking photos or videos with a simple voice command, or making requests with assistants like Google Home.

• One of the applications that attracts the most attention. It is possible that people with limited or blind eyesight can read texts or recognize obstacles in their path with the help of smart glasses.

• The image quality provided by smart glasses means that it can be used for training. It also provides remote consultation for medical care. Over the past few years, smart glasses have become important in this sector, a remarkable event occurred in 2013. When a group of Ohio Medical School students witnessed a surgery in the operating room from a first-person perspective through a computer.

• Also we can find smart sports glasses, many of which focus on cycling. Which is responsible for monitoring the activities we perform and displays them on the screen. The
• Other notable applications are safe driving, which allows the driver to detect when the driver is asleep. It provides a variety of applications for companies and allows inventory control, accident management or remote support.

The future of smart glasses with augmented reality

Smart glasses have come a long way since Google’s first attempt. There are now dozens of manufacturers of smart glasses, and this technology is advancing very fast. With the new unveiling of the development of these glasses, which offers a better field of view and clarity than the previous glasses, the future of augmented reality looks exciting.