What is an interactive projector?
We are sure that the overwhelming majority of Habr's readers imagine what a projector is and how to use it: turn it on, direct it to a screen or a wall and watch yourself blockbusters, play games or make presentations in the office.
However, modern projectors can do much more than just project a picture. There is a separate niche "Interactive" projectors that allow you to interact with the image, as with a large touch screen!
In this post, we briefly describe the main "chips" of modern interactive projectors, produced by Epson, and in the following - about software that allows you to discover all their capabilities and use in various fields of education and business.
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As mentioned above, an interactive projector allows the user to interact with the projected image. Actually, the word “interactive” is translated from English. When interactive projectors are shown to us, they usually show how the speaker draws something on top of the projected image or moves some objects around the screen.
Thanks to this, an interactive projector allows the user to forget for a while that in fact he interacts not with the screen, but with a computer that is connected to the projector. Thus, such a projector differs from the usual one in that it not only receives the signal from the computer, but also transmits information about the cursor position to the computer, that is, it actually performs the function of a mouse . And sometimes - and the touch screen , which reports the touches of your fingers on the surface of the image!
An interactive projector can be easily distinguished from non-interactive due to the presence of a special sensor, such as an infrared one, which is directed towards the screen.
In the image above, a “short-focus projector” is a projector that is installed as usual and projects the picture onto the wall “in front of itself”. The “ultrashort focus projector” is installed on the same wall on which the image is projected . Such a setting allows minimizing the shadows on the projected image when interacting with it (in the figure below you can see an ultrashort-focus projector at work to the right):
Previously, in order to provide "interactivity" and user interaction with the image, it was required to use a special marker. When the marker is close to the screen, the mouse cursor follows it. Pressing a marker on the surface acts as the left mouse button, and the right one is activated either by a separate button, which the new models have, or by long pressing the screen:
As you might guess, the mouse function allows you to use almost any software, without departing from the screen. Especially - in combination with the on-screen keyboard.
However, with the release of the latest interactive projectors, Epson EB-595Wi and Epson EB-1430Wi , the opportunity to interact with the images with your fingers! To be precise, the projector is able to simultaneously track 2 markers and up to six fingers!
Now imagine projects that can be implemented using similar hardware and an operating system designed for use with multi-finger touch input systems, such as Windows 8!
We will describe the software for interactive projectors in the next post.
In order not to miss the next post, you can subscribe to new posts on our blog.
If you have any questions regarding interactive men, feel free to ask them directly in the comments. We are happy to answer all.
Dear Habravchane,
Due to the fact that Habrahabr.ru was divided into three resources (HabraHabr, GeekTimes and MegaMozg), Epson's blog moved to Geektimes.ru .
Looking forward to seeing you on our GT blog!
Epson team
However, modern projectors can do much more than just project a picture. There is a separate niche "Interactive" projectors that allow you to interact with the image, as with a large touch screen!
In this post, we briefly describe the main "chips" of modern interactive projectors, produced by Epson, and in the following - about software that allows you to discover all their capabilities and use in various fields of education and business.
')
Interactive Projectors Features
As mentioned above, an interactive projector allows the user to interact with the projected image. Actually, the word “interactive” is translated from English. When interactive projectors are shown to us, they usually show how the speaker draws something on top of the projected image or moves some objects around the screen.
Thanks to this, an interactive projector allows the user to forget for a while that in fact he interacts not with the screen, but with a computer that is connected to the projector. Thus, such a projector differs from the usual one in that it not only receives the signal from the computer, but also transmits information about the cursor position to the computer, that is, it actually performs the function of a mouse . And sometimes - and the touch screen , which reports the touches of your fingers on the surface of the image!
How does it work?
An interactive projector can be easily distinguished from non-interactive due to the presence of a special sensor, such as an infrared one, which is directed towards the screen.
In the image above, a “short-focus projector” is a projector that is installed as usual and projects the picture onto the wall “in front of itself”. The “ultrashort focus projector” is installed on the same wall on which the image is projected . Such a setting allows minimizing the shadows on the projected image when interacting with it (in the figure below you can see an ultrashort-focus projector at work to the right):
Previously, in order to provide "interactivity" and user interaction with the image, it was required to use a special marker. When the marker is close to the screen, the mouse cursor follows it. Pressing a marker on the surface acts as the left mouse button, and the right one is activated either by a separate button, which the new models have, or by long pressing the screen:
As you might guess, the mouse function allows you to use almost any software, without departing from the screen. Especially - in combination with the on-screen keyboard.
However, with the release of the latest interactive projectors, Epson EB-595Wi and Epson EB-1430Wi , the opportunity to interact with the images with your fingers! To be precise, the projector is able to simultaneously track 2 markers and up to six fingers!
Now imagine projects that can be implemented using similar hardware and an operating system designed for use with multi-finger touch input systems, such as Windows 8!
We will describe the software for interactive projectors in the next post.
In order not to miss the next post, you can subscribe to new posts on our blog.
If you have any questions regarding interactive men, feel free to ask them directly in the comments. We are happy to answer all.
Dear Habravchane,
Due to the fact that Habrahabr.ru was divided into three resources (HabraHabr, GeekTimes and MegaMozg), Epson's blog moved to Geektimes.ru .
Looking forward to seeing you on our GT blog!
Epson team
Source: https://habr.com/ru/post/244751/
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