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Light Beam Ceiling Clock

....always tells you the light time
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Mount a small laser (or similar) pointing device on a clock mechanism, so that the beam of light acts as an extended hour hand.

Attach the device to the ceiling of a room so that the light beam shines onto the walls a few inches below the ceiling, and over a 12 hour period, the dot of light will do a complete rotation of the room.

Decrotive numbers, Roman Numerals, small symbols etc can be painted on the walls to mark out hours. Only an hour hand would be necesssary, as the distance between each hour on the wall would be enough to indicate roughly the minutes.

The clock device could be designed to fit around (or replace) a ceiling rose, this would put it roughly in the middle of the room, although it would not matter if it was not central, and could also take power from the AC lighting ring.

TopTim, Feb 02 2005

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       I like it very much, perhaps by strategically placing things around the perimeter of the ceiling you can also create a rather odd alarm clock (for instance, a disco ball at 7am to wake you up).
P.S. can I have a 24 hour one please ?
neilp, Feb 02 2005
  

       also would be useful for providing the markings for hanging pictures very high up the wall.
neilp, Feb 02 2005
  

       I think this is an absolutely terrific idea!! [+]   

       I have a ceiling fan in my bedroom so wiring and installing it on the fan would be a breeze. No pun intended.
contracts, Feb 02 2005
  

       just before we all go and bake this, can I suggest one addition: if we all set our clocks so that GMT 00:00 was due North, then if we happened to know the time upon walking into a building, we would also be able to know the building's orientation (making it easier to follow directions). Or something.

P.S. child-of-the-future : "I wonder what direction it is in Tokyo at the moment."
neilp, Feb 02 2005
  

       [neilp] reference to the disco ball - with the addition of a stronger laser you would have yourself a Russian Roulette Blinding game!
TopTim, Feb 02 2005
  

       That's it, now I'm definately building myself a cylindrical room.
Worldgineer, Feb 02 2005
  

       it's a kind of personal light house.
neilp, Feb 02 2005
  

       Nice one [TopTim].
half, Feb 03 2005
  

       You could use a green laser, so you would see a line of light instead, without having to search for the dot
senatorjam, Feb 03 2005
  

       [Worldgineer] How's that cylindrical room coming on?
hippo, Feb 03 2005
  

       Searched all the HB expecting this one to be one of [Farmerjohn]'s existing clock ideas..Nope! so nice one [TopTim]   

       "What's the time, darling?"   

       "Two curtains to Wedding Certificate"   

       "Shit, we're late!"
ConsulFlaminicus, Feb 03 2005
  

       [hip] Um, well... I meant I'm definately resolved to building myself a cylindrical room. Eventually. If I find the time.
Worldgineer, Feb 03 2005
  

       I've been looking for something novel that. Something I can see without my glasses on.
CwP, Mar 07 2008
  

       Why was this idea not brought to my attention before?
MaxwellBuchanan, Mar 09 2008
  

       [Max], you've been ignoring the voices again.   

       You've been a naughty boy, [Max], now get back in the box.
Custardguts, Mar 09 2008
  
      
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