Home > Terms > English, UK (UE) > Invar

Invar

An expensive, brittle metal used to make the shadow mask in a direct-view colour picture tube. Incorporating it allows higher picture contrast levels from the tube without incurring long-term damage to the shadow mask itself. It allows the set manufacturer to offer higher contrast levels.

Since the phosphors in the tube reach the point of blooming well before the need for the Invar mask, anyone properly setting the contrast level for no blooming in the picture won’t ever need the features of the Invar mask. The high contrast levels permitted by the Invar mask will eventually burn the phosphors.

This is auto-generated content. You can help to improve it.
0
Collect to Blossary

Member comments

You have to log in to post to discussions.

Terms in the News

Featured Terms

Harry8L
  • 0

    Terms

  • 0

    Blossaries

  • 1

    Followers

Industry/Domain: Entertainment Category: Music

psychoacoustics

The study of sound perception. It acknowledges that the mechanics of sound waves and acoustics is only one part of the puzzle in human listening, and ...

Contributor

Featured blossaries

Spongebobworld

Category: Arts   2 5 Terms

Battlefield 4

Category: Entertainment   1 3 Terms