Trivia

Hard

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

Digital Projectors
Telescopes
Video Game Consoles
Mirrorless Cameras
A photo demonstrating the Screen Door Effect.
Pg8p/Wikimedia

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

Very Hard

The Tiny Colored Dots That Give Old Comic Books Their Iconic Look Are Called?

Trivia

Easy

The Only Planet In Our Solar System That Isn’t Named After A Roman Deity Is?

Trivia

Easy

Many Of The Modern Aspects Of Grocery Shopping Were Pioneered By Which Of These Stores?

Trivia

Hard

Blade Runner, Total Recall, A Scanner Darkly, And Minority Report Are All Based On Works By?

Trivia

Hard

Which Video Game Character Derives His Name From Time Travel?

Trivia

Hard

Which Computer Engineer Is Best Known For Giving The Mother Of All Demos?

Trivia

Easy

What Was Once Considered Cruel And Unusual Punishment To Feed Inmates?

Trivia

Hard

Climate Changes Have Left Which Creature Without Natural Camouflage?

Trivia

Easy

The Loudest Sound In Recorded History Was The Result Of A?

Trivia

Very Hard

In The 1980s 3D Glasses Were Marketed As A Solution For?