Trivia

Hard

The “Screen-Door Effect” Is a Problem Engineers Need to Overcome In What Product?

Digital Projectors
Mirrorless Cameras
Telescopes
Video Game Consoles

Answer: Digital Projectors

If you’ve ever sat very close to a projection screen during a digital slideshow at work or school, there is a good chance you’ve seen the “screen-door effect” up close and personal. In digital projection, the effect is a visual artifact created by the fine lines between the individual pixels in the panel inside the projector.

The reason we can see the little lines is because the optical components of the projector (the lens system) can project the display with a greater degree of image resolution than the actual digital panel inside can create. As such, it’s like holding a powerful magnifying glass up to a printed page and seeing imperfections in the offset printing process.

Some of the tricks engineers have employed to deal with this visual artifact include depixelization, which uses various optical methods (a microlens array, for example) to eliminate the visibility of the spaces between the pixels, and setting the lens very slightly out of focus so that the individual pixels bleed into each other just enough to erase the black lines in the process.

Trivia

Hard

The First Super Hero Movie To Win A Major Oscar (Producing, Directing, Writing, Or Acting) Was?

Trivia

Hard

Which Technology Giant Actually Makes Most Of Its Money From Insurance Sales?

Trivia

Easy

In English Culture, “Bangers” Are?

Trivia

Hard

“Buck”, The Common Slang Term For U.S. Dollars, Originated With Which Of These Industries?

Trivia

Hard

Chewing Gum Was Originally Made From?

Trivia

Hard

The Function Of Golf Ball Dimples Is To?

Trivia

Hard

Who Gave The Shortest Award Winning Oscar Performance?

Trivia

Hard

The First Volunteer Computing Project Was Focused On?

Trivia

Hard

Who Is The Patron Saint of Computers?

Trivia

Easy

The Diamond Grip Pattern Frequently Found On Metal Tools Is Called?