How does this work? Pics included.

  • Thread starter DnD Addict
  • Start date
  • Tags
    Work
In summary, the conversation discusses a product that projects a virtual keyboard using a laser and camera technology. However, it is noted that this may not be practical as it lacks the tactile feel and reference points for touch typing. It is also mentioned that this product may not have good ergonomics for typing.
  • #1
DnD Addict
12
0
How does this work?

http://www.thinkgeek.com/computing/keyboards-mice/8193/"/
 

Attachments

  • virtual_keyboard.jpg
    virtual_keyboard.jpg
    9 KB · Views: 405
  • virtual_keyboard_add1.jpg
    virtual_keyboard_add1.jpg
    15.6 KB · Views: 415
Last edited by a moderator:
Engineering news on Phys.org
  • #2
Projecting an image of the keyboard? Probably a laser and a diffractive element
Then a camera detecting if anything (ie a finger) is blocking a particular key
 
  • #3
mgb_phys said:
Projecting an image of the keyboard? Probably a laser and a diffractive element
Then a camera detecting if anything (ie a finger) is blocking a particular key

Not so simple though, because when you press a key on the top of the keyboard, your hand blocks a major section of all the keys below. So it has to distinguish which key is actually being pressed.

From a consumer standpoint, a very stupid product because now I no longer have a tactile feel of a key being pressed, nor do I have the indents as a reference (on the F and J keys) for my fingers so I can type without looking. Nor do I want yet another device with more cables and a power outlet.
 
  • #4
Cyrus said:
Not so simple though, because when you press a key on the top of the keyboard, your hand blocks a major section of all the keys below. So it has to distinguish which key is actually being pressed.

From a consumer standpoint, a very stupid product because now I no longer have a tactile feel of a key being pressed, nor do I have the indents as a reference (on the F and J keys) for my fingers so I can type without looking. Nor do I want yet another device with more cables and a power outlet.

I agree -- probably terrible typing ergonomics. You probably have to keep your fingertips at least some distance above the table image, so that the tap is more evident to the reader. When I'm blazing at typing, my fingertips are generally off the keyboard, but as I slow down to think, my fingertips naturally come to rest, and as Cyrus says, re-confirm the home row position. Yuck.
 

Related to How does this work? Pics included.

1. How does this scientific process work?

The scientific process involves several steps including making observations, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions. Scientists follow this process to systematically gather evidence and test their ideas.

2. How do these machines work?

The inner workings of machines can vary greatly, but the basic principle is that they use energy, such as electricity or fuel, to perform a specific task. This can involve movement, heat, or other forms of energy to achieve a desired outcome.

3. How does this chemical reaction work?

Chemical reactions occur when atoms or molecules interact and form new substances. This can involve breaking and forming bonds, rearranging atoms, or exchanging electrons. The specific steps and mechanisms of a chemical reaction depend on the substances involved.

4. How does this technology work?

Technology refers to tools or systems that are designed to make our lives easier or more efficient. The inner workings of technology can vary greatly, but they all involve using scientific principles to achieve a desired function. This can include computer programming, mechanical engineering, or chemical processes.

5. How does this biological process work?

Biological processes refer to the functions and mechanisms that occur within living organisms. This can include everything from cellular processes to organ systems. These processes are often complex and involve multiple steps and interactions between different molecules or cells.

Similar threads

Replies
2
Views
1K
  • General Engineering
Replies
6
Views
2K
  • General Engineering
Replies
3
Views
3K
  • Computing and Technology
Replies
7
Views
989
  • General Engineering
Replies
5
Views
1K
  • General Engineering
Replies
4
Views
2K
Replies
7
Views
498
  • Classical Physics
Replies
29
Views
2K
  • General Engineering
Replies
2
Views
1K
  • Computing and Technology
Replies
1
Views
1K
Back
Top