The funky surfaces of aspheric lenses correct for the spherical aberration that makes conventional lenses not focus all light to the same point #optics #stem #lenses #science #physics #engineering #shorts
Пікірлер: 33
@1nobillynoАй бұрын
You didn’t show the laser on the second lens.
@edmundopticsАй бұрын
The laser demo is made to use those 2D lenses like the first lens. Using the second lens, you couldn't see the lines go through and show up on the table below just because it is intended for real systems and not these educational demos
@Tomcat-tomatoАй бұрын
Very well explained!!!
@edmundopticsАй бұрын
Thank you!
@CarlWinter-oy8ufАй бұрын
Thankyou ---I look forward to the next video ----sounds quite interesting !
@CarlWinter-oy8ufАй бұрын
Where. /how do I find your next video ? Fascinating lens !
@edmundopticsАй бұрын
Ahh sorry, we thought that your last comment was actually on the video before this one, so we were referring to this video. We'll look into if we can make a good, practical demo showing an asphere correcting spherical aberration!
@paladinkhanАй бұрын
Thank you for teaching me about lenses. So in the second lense you showed, when it comes to how it affects the light traveling through helps me understand as well. Would that remove some of the fish eye effect or perhaps lead to further skewing of the image but around the middle rather than the outside?
@edmundopticsАй бұрын
You're welcome! Aspheric lenses can also remove distortion in addition to spherical aberration, resulting in less of a fish-eye effect
@resiyun17 күн бұрын
A lens which projects images as non-rectilinear cannot be corrected by a lens like this. Modern lenses use many pieces of lenses which are aspherical which help with focus. Some of the worlds best images use apochromatic lenses which further increase image quality than a single aspherical lens would
@billyponsonbyАй бұрын
Fascinating
@edmundopticsАй бұрын
Thank you!
@depotheose7890Ай бұрын
What would happen if you had a setup like this and then put a sort "opposite" lens to the first one on the focal point? Would you get all the light beams overlapping?
@edmundopticsАй бұрын
Yes, that is done in real lenses! Combinations of lenses are carefully chosen to balance out each other's aberrations. That's why nice camera lenses have many glass lenses inside a metal barrel instead of 1 simple glass lens
@leothecrafter4808Ай бұрын
@@edmundoptics Yep, a lens can be corrected for one wavelenghth, however if you need it to be corrected for spherical abberations, flat field and chromatic abberations over a wide range say 400-700nm, you quickly get systems with multiple doublets or even triplets, all matched for each other in material and shape. Especially common for as said camera objectives but also plan apochromatic microscope objectives, there are some nice graphics out there if you look it up.
@ErenAlpErtem29 күн бұрын
Cool vid
@edmundoptics29 күн бұрын
Thanks!
@CarlWinter-oy8ufАй бұрын
OK --thankyou !
@kaso7911Ай бұрын
Looks like lens in our eyes
@CarlWinter-oy8ufАй бұрын
How about a practical demo of this ASPHERIC lens ?--to focus the rays of light more accurately ?
@edmundopticsАй бұрын
That's what the video we posted after this one is all about!
@sennevanopdorp202226 күн бұрын
Is this also why certain camera lenses are mor expensive?
@edmundoptics15 күн бұрын
Yeah they may include aspheric lenses or other more complicated optical designs that do a better job at correcting for aberrations!
@ronpearson191221 күн бұрын
oh man you didnt put it in the laser path to show
@edmundoptics15 күн бұрын
The asphere in this video is made for real applications unlike the 2D lenses used for these educational demos. With the asphere in front of the beams, you couldn't see them show up on the table below so you wouldn't really see anything
@ronpearson191212 күн бұрын
@@edmundoptics thank you so much, I love your products, was able to build a raman spectrometer with edmund .... still need to test it
@edmundoptics10 күн бұрын
@@ronpearson1912 so happy to hear that! We hope it works 😁
@billybob4895Ай бұрын
You didn’t show the lasers with the aspherical lense so I’m disliking the short
@edmundopticsАй бұрын
The laser demo is made to use those 2D lenses like the first lens. Using the second lens, you couldn't see the lines go through and show up on the table below just because it is intended for real systems and not these educational demos
@billybob4895Ай бұрын
@@edmundoptics in that case you can be forgiven Dislike revoked
@edmundopticsАй бұрын
@@billybob4895 appreciate it :)
@IAMTheYankTankАй бұрын
I love the part where he showed us what he was talking about by putting the laser through the second lens
@edmundopticsАй бұрын
The laser demo is made to use those 2D lenses like the first lens. Using the second lens, you couldn't see the lines go through and show up on the table below just because it is intended for real systems and not these educational demos