Welcome to the 1520 Perfect Dictionary

Click on any title to read the full article

Coated lens

Definition: (optics) Lens for cameras or instruments designed to reduce light loss by reflection. It is created by applying a film coating made up of magnesium, flouride, silicon oxide, sodium flouride, and titanium oxide.

See perfect lens (1).

See perfect type (1).

1520 Products

1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way.

1520 Sex Game

1520 Puzzles

1520 Marriage Game