How does the James Webb telescope filter out the infrared light from the stars NASA isn't interested in studying?

I believe that the telescope has a foil sheild. Maybe a special computer program that removes the glare and unwanted light

Here’s what I believe I saw in a video about it: in its shield it has multiple tiny ‘doors’ that can open and point at a certain piece of space that they want to image.
That way there’s only a small amount of light falling onto the sensor.
A small amount would defeat the purpose, so I guess they can point it for a longer time, or multiple times.

I’ve heard that the telescope has a infrared camera.
The heat shield protects the telescope from being heated by the sun. If scientists want to take pictures on the far side of the sun, they need only wait 6 months for the camera to be on that side of the sun. (The telescope obits the sun at the same rate as the Earth, always maintaining a 1 million mile distance from Earth.)

Based on the answers, I don’t think I’ve phrased my question very well. Yes there’s a shield that blocks the light/infrared radiation from the Sun, Earth, Moon. It’s always pointed away from them. That means it’s looking out into the stars, but there are infinite stars out there that are blasting the sensors with infrared light. I’m wondering how the telescope excludes the light from these bright and visible stars from contaminating the data from the dimmest of stars from when our universe formed (the things it was designed to study).

I hope that made my question more clear.

I think you need to find out more about the telescope, like I have.

Like the Hubble Deep Field the James Webb can focus on a very small region of the sky where there are no bright sources of infra-red.

Another point to consider, if you hadn’t already: Since the telescope will be one million miles away from Earth opposite the sun, only the shaded side of the Earth and moon will face the telescope. So the shield will protect from all three (Sun, Earth, moon) of these possible light sources.

Good question on an amazing piece of space technology that’s expected to outperform the Hubble telescope by a factor of more than 100, and increase our knowlege of the universe exponentially.

According NASA, the JWT strategy for image capture will rely in part on a far-orbit position in the L2 range; beyond most interference of reflected light between sun, earth, and moon. But in addition the new telescope encorporates layers of interlocking technolgy including nano motors calabrated to move mirror segments to adjustments less than 1/10,000 the thickness of a human hair. Along with those and other mechanical systems JWT will use unique data processing sofware written primarily in Python to help refine and transmit images.

But the key component that answers your question is the 3rd stage mirror system built into the Cassegrain focusing element projecting from the center of the main array. Check it all out in the video link here, beginning at about 24:02 :
https://youtu.be/aICaAEXDJQQ

Really, truly, fascinating stuff. And maybe some reason to think we can still have a bright future, considering all this was acomplished while jackass politicians were trashing themselves, the country, and science with “culture war” bullshit.