Word Count: 450KWD: 2.89Projection Alarm ClockProjection Alarm Clocks (also Known As Ceiling Clocks) Have Been Around For Quite Some Time Now. Projection Alarm Clocks Are Digital Clocks (sometimes Analog) Outfitted With Projectors That Generates An Increased Representation Of A Clock Face On Any Suitable Surface (walls And Ceilings Mostly). The Main Idea Of Projection Alarm Clocks Is To Have An Alarm Clock That Can Be Projected On Any Sort Of Surfaces And At The Same Time Trigger An Alarm On A Time Set. The Images That The Projection Alarm Clocks Produce Are Large Enough That A Person With Visual Problems Can Make Out Even Without Any Visual Assistance (for Example: Reading Glasses Or Contact Lenses).There Are Two Types Of Projection Clocks, The Low Brightness Projection Alarm Clocks And The High Brightness Projection Alarm Clocks. The Low Brightness Projection Clocks Are Projection Clocks That Use LED (Light Emitting Diode) For The Projection Of The Image. These Types Of Projection Alarm Clocks Are Convenient Because The Images That It Projects Can Be Read Even When A Room Is Not Poorly Lit. Some Of These Types Of Projection Alarm Clocks Are Incorporated With Radios And Weather Stations. There Are Some Projection Clocks That Have A Built In Battery To Provide Backup In Case Of Power Failure, Thus Preventing The Projection Alarm Clock From Resetting Itself.The Other Type Of Projection Clocks Are The High Brightness Projection Clocks. These Types Of Projection Clocks Mostly Have Analog Displays With A Halogen Bulb Backlight. LCDs Are Sometimes Incorporated With These Type Projection Clocks To Combine Analog And Digital Images. However, These High Brightness Projection Clocks Are More Expensive Than The Low Brightness Projection Clocks. The Concept Of Projecting Time On A Particular Surface Has Been Around For Quite A While. The First Ever Patented Projection Clock Was Introduced To The Public In The United Kingdom On 1909. However, The Patent Of That Particular Projection Clock Has Now Expired.Projection Clocks Are Mostly Powered By The Main Electricity Of A House; There Are Also Some Projection Clocks That Use Potentially Hazardous Technologies. Projection Clocks Are Not Very Difficult To Build. Any Hobbyist Can Easily Make Their Own Projection Alarm Clocks. The Patent For The Projection Clocks (1909 And 1940) Have Now Expired Therefore Anyone Or Any Company Can Build His Or Her Own Projection Clocks. In Case You Are Interested In Building A Projection Alarm Clock, You Must First Consider The Potentially Hazardous Technologies And Materials That You Are Going To Utilize, Purchase, Or Fix. Research And Stick To The Safety Guidelines Of Creating A Projection Clock. Avoid Using Halogen Bulbs In Your Homemade Projection Alarm Clocks. Individuals Who Have Photosensitive Epilepsy Are Discouraged In Using Or Making Projection Alarm Clocks.
