In search of other keyboard possibilities I checked out the Cellulon Epic laser projection keyboard. Nice and small (70mm x 20mm x 35mm, weighing 60gm), it uses a red laser diode to project a QWERTY keyboard (width 240mm x height 100mm; pitch 19mm) onto a flat surface. After pairing the device with your S4 (or any other device that has Android v4.0 or later; Windows XP or later; iOs 4.0 or later; or Blabckberry v10) you can start typing. As your fingers reflect the infrared light it is detected by a sensor that calculates the appropriate keyboard key...
The Epic has a 650 mAh lithium-ion battery rated at approximately two hours of use. It has 5 sound feedback levels, 5 brightness levels, sensitivity adjustment, and power saving modes.
And some specifications:
It worked very well for me and was very accurate (unlike in the Gizmag review)... Of course I am a "hunt and peck" typist and do not 'touch type,' it is very possible that it is less accurate at higher rates although it is rated at a recognition rate of 350 characters per minute! Is it realistic for frequent use? I'm not so sure, but it is an epic gadget!
Other Cellulon keyboard reviews:
Review: Cellulon Epic projection keyboard (Gizmag)
Cellulon's Epic is a Mobile Projection Keyboard with Multi-touch Mouse Functions
Cellulon Epic Mobile Projection Keyboard (YouTube video)
Cellulon Epic Projection Laser Keyboard (YouTube video)
Previous S4 blog entries:
Yet more Galaxy S4
More Galaxy S4
Galaxy S4 second look
Galaxy S4 first look
The following show the lowest and highest brightness levels, with and without the lights on respectively:
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