Types of Light Pens?

Answer Light pens are designed to detect light emitted by an illuminated area such as a computer monitor. The pen glows as a result of the light that comes from the illumination source. The light pen is l... Read More »

Top Q&A For: Types of Light Pens

Which came first: gel pens or ballpoint pens?

Ballpoint pens came before gel pens. A primitive version of the ballpoint pen was created in 1888 by John Loud, an American tanner, but it did not receive commercial attention. In the 1940s, Josef ... Read More »

Types of Light Sensors?

Light sensors help you everyday by detecting and reacting to different levels of light in appliances, switches and machines. Light sensors vary from those that respond to changes, collect current o... Read More »

Types of Car Light Bulbs?

Although rarely given the attention deserved, automobile lighting is the one type of lighting that many people utilize on a day-to-day basis that focuses on safety. Lights have been placed on vehic... Read More »

Track Light Types?

Interior light decor options include track lighting. Track lighting offers you greater flexibility than standard "in the middle of your ceiling light bulbs" and "downward only" ceiling lighting. Un... Read More »