Examples of Lenses Bending Light - Concave, Convex & Collimating Lenses

Рет қаралды 70,201

Жыл бұрын

Cory from Edmund Optics shows how different types of lenses can manipulate and change light with the help of a laser. He shows examples of how convex, concave and collimating lenses can be used to bend and manipulate light.
#science #edmundoptics #laser #lasers #lenses # lens #concave #convex #collimating #shorts #light #optics #science #sciencefacts #stem #stemlife #lenses #physics #greenscreen #scientist #refraction #demo #shorts

Пікірлер: 36

@edmundoptics Жыл бұрын

To buy your own lenses, go to: www.edmundoptics.com/c/optical-lenses/603/ To learn more about optics-related science topics, view Edmund Optics’ Knowledge Center. www.edmundoptics.com/knowledge-center To view the largest selection of optics, laser optics, or other optics-related products, visit our website. www.edmundoptics.com/

@rinzler749 Жыл бұрын

why teachers at school can't teach like this?

@spxrklinqkxwis1838 2 ай бұрын

My one science teacher did and I loved her

@ajingolk7716 Күн бұрын

Because you are not reach 😁

@edmundoptics Жыл бұрын

Yes, you have it right! The focal length of a lens describes how sharply it focuses light. In order to have parallel beams in and parallel beams out, the lenses have to be separated by the sum of their focal lengths And you're right that a lot of the time lenses with 2 different curvatures (i.e. focal lengths) are used. That causes the light to remain parallel but either spread out or get closer together. That's actually exactly how telescopes work!

@KhaalidAbdi-cu3gk Жыл бұрын

This is amezing concave convix😊

@ordeo Жыл бұрын

Interesting stuff! I’m working on a theory relating to how light behaves.

@praneelpathak2911 10 ай бұрын

Please tell me about it!

@iamamazingist Жыл бұрын

Good

@ajingolk7716 Күн бұрын

How to keep the beams focused in one beam?

@AntonySimkin Жыл бұрын

This is enlightening and awesome lol

@edmundoptics Жыл бұрын

Thank you!

@racefrazier7998 Жыл бұрын

Also a good example of gravitational lenseing

@revmsj Жыл бұрын

Which lens to annihilate Alderaan tho?

@user-hf3mq1sz6t Жыл бұрын

Thanks Bro interesting and understandable🙂👍

@edmundoptics Жыл бұрын

Thank you!

@ted_van_loon 7 ай бұрын

I wonder why none of those handheld toy lasers pointers use normal Led diodes and then focus the light into a straight beam using a lens/lenses. or make normal leds with the plastic casing which is cast around it to protect the led but also works like a lens, in as different lens shape so it becomes a straight or almost straight beam, that would be much cheaper and simpler than how they do it not, and since those handheld laser pointers are just used for fun and to see a visible beam they don't need to be that accurate. also was thinking about a setup just like that but then using a electric system to move the lenses so that I can move the focal point, then I could use it like some kind of prop laser gun which shoots one of those slowmotion laser beams like in movies witout needing to make and controll smoke rings or such. only problem would be that it would likely need to be big to work well(in diameter) so that there is enough difference between the normal beam and the focussed spot.

@sagarshrestha5800 Жыл бұрын

Is there anything when passes through the lens behave exactly opposite to light

@arhanrahi9221 Жыл бұрын

You are so underrated man

@edmundoptics Жыл бұрын

Thank you! :)

@ezequielroque9229 3 ай бұрын

So, what happens if you change the distance of the source?

@edmundoptics 3 ай бұрын

Not too much since here we're using a laser source, but laser beams still diverge a bit over time so the beams would spread out a little if the source is moved further away

@alejandrodelatorremedina1746 Жыл бұрын

Where can I buy that kind of lens and laser?

@edmundoptics Жыл бұрын

It's made by a company called Arbor Scientific! They call it Laser Ray Box and Lenses and sell it for $99 USD

@guyonae9007 10 ай бұрын

So we don't need massive object like Sun in order to bend light, right? Like Einsteins predictions about light bending in near Sun.

@edmundoptics 10 ай бұрын

Correct! The bending of light around a star is because of gravitational lensing, where gravity is so high that it warps space around the object. Conventional glass or plastic lenses bend light using curved surfaces. The angle that light is bent there depends on the angle it hits the curve and the 2 materials (like the light starting in air and then going into glass)

@gluhovav1997 Жыл бұрын

надо лазер разноцветный прикольней будет

@johnreiland9180 Жыл бұрын

Please forgive the layperson language I use in this question: these two lenses have the same... curvature? And so when the first lens causes the beams to converge and cross, and then diverge, the second lens can only make those beams parallel again when they are the same distance from one another as they originally were. But if the lenses had different... curvatures, presumably one could start with beams of light that were one distance apart from one another, and converge them down not quite to a point (or just slightly past a point) and then use a second lens with a different curvature to return those beams to being parallel with one another, while being much more closely spaced? Would that not be very useful for a lot of applications? Is this arrangement used already in many ways/places and I'm just ignorant of it? Or is there maybe a reason this doesn't actually work in reality the way I described here?

@WaveofThought Жыл бұрын

What you've just described is called a telescope! Specifically, a Galilean or Keplerian telescope, depending on whether the second lens is placed before or after the focal point of the first lens. The magnification of the telescope is determined by dividing the focal length of the first lens (the "objective" lens) by the focal length of the second (the "eyepiece"). And yes, this arrangement of lenses is very useful for many applications :)

@Rohan_Trishan 11 ай бұрын

I love lasers and optics! I have a few questions actually..... so in the first part where you use the C shaped lens, do the order of the lasers change/flip/rotate after the focus point or no? Like from top to bottom is 1 - 2 - 3 before the lens, then after the focus point it looks like the lasers have rotated (counter clockwise maybe?) so that afterwards the order is now 3 - 2 -1. Do they spin, is it CW or ACW? OR does it just focus but when it spreads out again the order is still the same? So from 1-2-3 to 1-2-3.? Also, what happens if you use the I shaped lens but turn it horizontally? Or any of the lenses horizontally?

@edmundoptics 11 ай бұрын

Yes the order of the lasers is flipped! That's actually why lenses form upside-down images. And if the lenses are turned horizontally, you'll see some weird effects from the light hitting the glass at different angles. It'll be bent differently and could even reflect internally in the lens. We'll show that in another video!

@Rohan_Trishan 11 ай бұрын

@edmundoptics Cool, I like how the rays rotate, looks just like the fingers of your hand when you turn it over. I wonder if it always rotates in one direction? I look forward to some new clips or shorts. And if I can suggest a lens shape to demonstrate, I would like to see a prism lens that is shaped like lips 💋 , similar to that thin oval ellipsis shaped lens u have but with a wide M shape on top and a W shape on bottom. I'm curious to see how it would effect the laser rays.