The easiest way is to purchase a Headlight Lens Restoration Kit by 3M. They are available at AutoZone and 3mestore.com. (~$20) The Kit contains basically all the tools needed to restore the headlight lens and you use it with your household drill. The results you will get are amazing!
The cheap way is to mix tooth paste with glass cleaner.
You'll be surprise.
The proper name for clear glass on binoculars are called lenses
appear closer
tyndall effect
The lenses in a microscope diffract (bend) the light as it passes through them. The effect is that an object appears clear and large (is focused and magnified) when the light reaches your eye. Also, microscope designs usually ensure that the object appears right-side-up.
Formerly, endoscope optics consisted of a series of thin converging "relay lenses", creating a succession of images in the air spaces between them. Following the innovation by Harold H Hopkins, the thin lenses in air were replaced by thin air lenses in glass. In other words, each lens consisted of a rod, with convex polished surfaces at each end. This increased the light throughput, and avoided the metal spacer rings needed in the old design. Some endoscopes instead use bundles of fiber optics to convey the image, which renders them flexible.
The dealer, EBAY, do a google search..... they are used for roads
There are clear turn signal lenses available from a Chrysler LeBaron and the PLymouth Acclaim of the same vintage. The lenses integrated into the bumper are fully clear unlike the Spirit amber color. The turn signal lenses next to the headlight are clear with just the side reflectors being amber.
if its on the out side in most cases it is they sell a cleaning kit at the parts store that works good
The headlight assembly can be changed, but not just the actual clear lens on the front. See "Related Questions" below for how to remove the headlight assembly, and also how to clean them
Your local auto parts store should have a kit available to restore the clear plastic lenses over your headlamps.
To stop pine from yellowing, applying a clear non yellowing finish waterbased acrylic will help. As the pine begins to age, it will become darker and have a beige appearance as a natural process.
first you wet sand the headlights with 1500 sandpaper until the are real smooth,then you buff them with 3m etc, rough compound using a wool buf pad on a bufing grinder un till clear,be carefull not to heat the headlights up go slow.when done thease will loook like new. best of luck.
One way to get them clear again that is very inexpensive and easy is to : Remove the headlights (assuming you know how to). Take a really fine grain sandpaper like 800 to maybe 1000 ,and wetsand all of the ugly yellowing til its completely gone. Then get some 3M rubbing Compound (image on link provided) (http://www.autobodytoolmart.com/images/PRODUCT/medium/14342.gif) Use a microfiber towel to buff to a factory shine. [If you do perform this mod you assume all the responsibilty in doing so. ]
Sauflon Pharmaceuticals makes Clear Comfort contact lenses. They also provide many other types of contact lenses, and a variety of other eye care items.
Cost. Far cheaper to manufacture clear lenses than to make colored ones.
If they are designed for plastic they should not have any abrasives in them, so they should be safe, However if you are trying to remove cloudy oxidation from your thermoplastic /acrylic/ polycarbonate headlight lens they will not work.
Romans experimented with different shapes of clear glass lenses. This experimentation accidentally resulted in the creation of the magnifying glass.