Laser Operated Keyboard for the Industrial,
Military and Abilities Industry
with AALC from EKI
A Light Beam Operated Keyboard where each key
Lights when the Light Beam passes over the key prior to selection and input
Keyboard and Mouse in one package
Small, less than a pound, no drivers to load,
goes from sunlight to office error free, no mouth sticks or head sticks
to operate your keyboard or wheelchair, and a very affordable price!
For partial quadriplegics and other physically challenged persons
to type into and control personal computers and control wheelchairs. EKI
has over ten years manufacturing optical keyboards and now with a lifetime
EKI's new Light Key™ is operated from a light beam with Automatic
Ambient Light Compensation (AALC) to allow use outside in direct sunlight
and inside with varying light conditions from dark offices to bright areas
No drivers to load, outputs are USB and PS2, just plug it in and
you are typing on the computer. Very compact and portable just 6 inches
by 12 inches, and less than a pound.
Keyboard key layout
The light beam is pointed at a key and the key or function is output
to a host. When the light beam is moved over the keys each key lights up
as it sees the light beam, if the light beam is stopped over a key a delay
starts, when the delay is finished, a beep sounds and the key is sent to
the computer. If during the delay time the light beam is moved to another
key then nothing is sent to the computer. The delay must time out to input
a key. All controls for the keyboard can be adjusted by the operator with
the light beam. Like the beep can be turned off, and the delay can be adjusted
to fit each user either longer or shorter.
The light beam can be held it the operators mouth, or attached to
a head ban, finger, toe, shoulder or anything the user can move.
Light Key™ keyboard operation
Keys A-Z - When regular keyboard keys detect
a light beam they input the same as a regular PC keyboard.
Shift Key - When the shift key detects a light
beam the next key detected is shifted to the second function to the upper
left on the key, if a letter key is selected then the letter is shifted
to upper case and then the Shift key is reset to allow lower case or normal
characters to be sent.
Caps Lock - When the Caps Lock key detects a
light beam the all of the rest of the keys are shifted to upper case or
if they have a key function in the upper right of the key that function
is input. When the caps lock key is selected the LED at the Caps Lock location
will light and will remain lit until the Caps Lock key is selected again.
Enter Keys - There are two Enter keys, both
do the same function. They are there to only allow Enter when a user is
selecting for either the left or right side of the keyboard.
Speaker Key - When selected allows the user
to increase, decrease or turn off the beep from the speaker.
Copy - After selecting a section of text or
an object with the Mouse function the Copy key can be selected to remember
Paste - After text or an object is selected
with the Copy key it can be inserted back by selecting the Paste key.
Fast Key - is used to speed up detection time
from the key Light coming on until the selected key is input. As a user
gets more familiar with Light Key the user can adjust Light Key faster
to increase his or her typing speed. In operation each time the Fast Key
is selected the selection time decreases in steps, so to get a very fast
selection time will take multiple selections.
Slow Key - is used to decrease the detection
time of the key Light coming on until the selected key is input. This is
very helpful in places where more than one user is using Light Key. If
a previous user has used Light Key more and is faster at typing then the
newer user can with the selection light beam slow down the detection for
them to learn typing with Light Key easier. In operation each time the
Slow Key is selected the selection time increases in steps, so to get a
very slow selection time will take multiple selections.
LC Key - Is left click, when this key detects
a light beam it will input a left click to the computer the same as a standard
DC Key - Is double left click, when this key
detects a light beam it will input a double left click to the computer
the same as a standard computer mouse. The timing interval is between the
click are fixed by the keyboard and not by the user so a correctly timed
double let click is input to the computer.
RC Key - Is right click, when this key detects
a light beam it will input a right click to the computer the same as a
standard computer mouse.
Mouse Arrow Keys - The mouse arrow keys show
the direction the cursor will move when selected. When a arrow key detects
the light beam the cursor is moved first starting slow for finer selection
on the monitor then the movement speed increases to facilitating rapid
traverse across a monitor.
SF Key - This is the start fast key and when
the start fast key detects a light beam and the delay times out to select
it the next key must be an arrow key, when the light beam is then moved
over an arrow key and the delay times out that arrow key will start moving
the cursor at a fast rate until the light beam is moved away from the arrow
key and being not selected the start fast key will be reset to normal.
Then if the user moves the light beam over an arrow key to select it that
arrow key will start slow to allow a fine movement selection so you can
select an object, text or line. A user can use this key to first move the
cursor quickly across the monitor.
Drag Key - To move an object or icon on a monitor
display one of the arrow keys positions the cursor over an object then
when the Drag Key detects a light beam and a left click is sent and appropriate
other signals by Drag Key to enable moving the object, then one of arrow
keys is selected and detects a light beam and the object is moved in the
direction of that arrow, then by moving the light beam away from the arrow
key to deselect it the object stops in position and the Drag Key is reset.
OFF/ON - If a user is leaving a computer the ON/OFF key is selected to
turn off Light Key keyboard. If the light beam is battery powered then
it can select the ON/OFF key to turn on Light Key, if not the keyboard
must be plugged into the computer and Light Key will be turned on.
Wheelchair Control layout
When controlling a wheelchair in direct sunlight or inside typing
on a computer Automatic Ambient Light Compensation (AALC) continues to
monitor ambient to give you error free typing and control. When used to
control a wheelchair the same controls can have a keyboard for typing into
a computer or just for wheelchair controls.
TV Laser Controled Remote Layout
New non-contact TV control. If you can move any part of your body,
like your finger, head, toe, etc. you can control your own TV with a light
beam from your wheelchair or bed. Control beams are emitted toward the
TV from the right side and from rear for vertical mounting, and from the
top for wheelchair mounting.
Industrial Laser Keyboards from
With custom text, colors and macro's to fit your application.