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

Показать описание

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

Edmund Optics

Рекомендации по теме

Комментарии

To buy your own lenses, go to:

To learn more about optics-related science topics, view Edmund Optics’ Knowledge Center.

To view the largest selection of optics, laser optics, or other optics-related products, visit our website.

edmundoptics

why teachers at school can't teach like this?

rinzler

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!

edmundoptics

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

ordeo

a single convex lens focuses the light into a point, all aligned beams got there except of deviated beams that go straight.So we place a aperture diaphragm there to eliminate deviated beams and only bypass the beams in that singular point.Then we need the second corrective lens to focus the beam again into the sensor.

sigmagamer

Thanks Bro interesting and understandable🙂👍

STASPRO-os

I like how he explained how that was a laser.

doctorae

How to keep the beams focused in one beam?

ajingolk

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.

ted_van_loon

Where can I buy that kind of lens and laser?

alejandrodelatorremedina

I love lasers and optics! I have a few questions 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?

Rohan_Trishan

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

sagarshrestha

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

ezequielroque

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?

johnreiland