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Design Optics Fast
United States
เข้าร่วมเมื่อ 29 ก.พ. 2020
The optics industry has given me a great career and a comfortable retirement, so I wanted to give something back. That's why I set up this channel, dedicated to teaching 21st century optical design methods. There are lots of short, easily understood lessons on how to design real-word optics, real fast. Please come and join me!
My software of choice is Zemax OpticStudio, and many of you will know that I used to be CEO of Zemax and go back about 30 years or more with Zemax. But, this channel is not sponsored by, or run for the benefit of the Zemax business. Instead, I want to focus on the computer-based design methods that are used in optical design in the 21st Century. I don't see this being taught elsewhere, so I want to show my approach, and help you to get the best results possible, in the shortest amount of time.
My software of choice is Zemax OpticStudio, and many of you will know that I used to be CEO of Zemax and go back about 30 years or more with Zemax. But, this channel is not sponsored by, or run for the benefit of the Zemax business. Instead, I want to focus on the computer-based design methods that are used in optical design in the 21st Century. I don't see this being taught elsewhere, so I want to show my approach, and help you to get the best results possible, in the shortest amount of time.
Relay Lenses
There's an important trick to designing relay lenses especially when the chief ray angle at the image plane is high. You have to pay attention to how the exit pupil of the primary lens is matched to the entrance pupil of the relay lens. We go into gory detail!
0:00 Introduction
02:10 Cute Corporate Jingle
02:17 What could possibly go wrong?
07:34 Aperture of the Relay Lens
10:09 Pupil Imaging with a Field Lens
11:42 Designing the Relay Lens
14:20 Designing the Field Lens
18:53 Combining the Primary, Field and Relay Lenses
20:49 Summary
0:00 Introduction
02:10 Cute Corporate Jingle
02:17 What could possibly go wrong?
07:34 Aperture of the Relay Lens
10:09 Pupil Imaging with a Field Lens
11:42 Designing the Relay Lens
14:20 Designing the Field Lens
18:53 Combining the Primary, Field and Relay Lenses
20:49 Summary
มุมมอง: 3 249
วีดีโอ
Quick Wins: Landscape Derivatives
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A one minute summary of the 16 minute video on Landscape Derivatives See th-cam.com/video/1rC7mULKB7A/w-d-xo.html for the full thing!
Landscape Derivatives
มุมมอง 2K3 ปีที่แล้ว
The humble Landscape Lens is one of the most widely used optical systems in the world. This video shows how it can be modified to provide good imaging for a variety of applications. Watch this first: How to Optimize the Landscape Lens with Zemax OpticStudio th-cam.com/video/YN6gTqYVYcw/w-d-xo.html 0:00 Intro 00:46 Jingle 00:53 The Reverse Landscape 04:45 Adding an Aspheric Surface 07:40 Vignett...
Quick Wins: Summary of Optimizing the double Gauss Lens with Zemax OpticStudio
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A one minute summary of the 19 minute video for the truly time crunched.
Optimizing the double Gauss Lens with Zemax OpticStudio
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The double Gauss lens is a key design, and we discuss some important design constraints as well as how to use High Yield Optimization to provide design for manufacturability. Introduction: 0:00 Cute Corporate Jingle: 0:39 Setup: 0:47 Optimizing: 6:03 Review: 9:52 High Yield Optimization 13:42 Summary 17:52 Zemax and OpticStudio are trademarks of Zemax LLC, www.zemax.com
Quick Wins: How to Optimize the Cooke Triplet with OpticStudio
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A 1 minute summary of the 16 minute 'How to Optimize a Cooke Triplet with OpticStudio' video, for the truly time-crunched
How to Optimize the Cooke Triplet with OpticStudio
มุมมอง 4.3K3 ปีที่แล้ว
We continue to study the Basic Shapes of Imaging Systems by using Zemax OpticStudio to design a Cooke Triplet lens. Contents: Introduction: 0:00 Cute Corporate Jingle: 0:35 Setting up the System: 0:42 Optimizing the System: 6:15 Bonus-Productionizing: 11:52 Summary 16:13 Zemax and OpticStudio are trademarks of Zemax LLC, www.zemax.com
Quick Wins: Optimize the Color-Corrected Landscape Lens // OpticStudio
มุมมอง 4603 ปีที่แล้ว
A 2-minute summary of a 9 minute video on optimizing the Color-Corrected Landscape Lens using Zemax OpticStudio. Part of the 'Optimizing the Basic Shapes of Imaging Systems' series. Not sure what happened to the audio quality, it sounds like I'm underwater! 00:00 Start 00:03 Edit the Template 00:08 Optimize 00:15 Analysis 00:34 Glass Selection 01:08 Summary of the Summary for the truly impatien...
How to Optimize the Color Corrected Landscape with OpticStudio
มุมมอง 1.9K3 ปีที่แล้ว
This video shows you how to use Zemax OpticStudio to optimize the second of our Basic Shapes of Imaging Systems, the Color-Corrected Landscape Lens 00:00 Start 00:06 Introduction 00:40 Shameless Corporate Branding :-) 00:49 Setup 01:33 Optimization 02:00 Analyze 03:27 Glass Selection 06:17 Specification 07:11 Summary 08:24 Summary of the summary for the truly impatient Zemax and OpticStudio are...
Quick Wins: A Summary of "Optimizing the Landscape Lens using Zemax OpticStudio"
มุมมอง 6383 ปีที่แล้ว
A 3-minute summary of a 20 minute video on optimizing the Landscape Lens using Zemax OpticStudio. Part of the 'Optimizing the Basic Shapes of Imaging Systems' series. 00:00 Start 00:03 Specification 00:17 Setup 01:00 Easily Scalable Template 01:10 Optimization 02:00 Analysis 02:31 Summary of the Summary for the truly impatient Zemax and OpticStudio and trademarks of Zemax LLC, www.zemax.com
How to Optimize the Landscape Lens with Zemax OpticStudio
มุมมอง 5K3 ปีที่แล้ว
This video shows you how to use Zemax OpticStudio to optimize the first of our Basic Shapes of Imaging Systems, the Landscape Lens 00:00 Start 00:10 Introduction 00:46 Specification 02:40 Shameless Corporate Branding :-) 02:49 Setup 07:20 Saving the Landscape Template 08:00 Optimization 14:26 Analyze 17:50 Summary 20:27 Summary of the summary for the truly impatient Zemax and OpticStudio are tr...
Bonus video: UI Tweaks in OpticStudio
มุมมอง 8823 ปีที่แล้ว
I like to tweak the OpticStudio UI for specific projects, and as I'm writing the Optimizing the Basic Shapes Series right now I htought I'd show how I customize the UI for best productivity and also for best viewing via TH-cam. Zemax and OpticStudio are copyright of Zemax LLC www.zemax.com
Quick Wins: Where Do You Start in Imaging System Design Summary
มุมมอง 1.2K3 ปีที่แล้ว
No sound or captions, video only. Here's a 3 minute summary of my 20 minute video on Where Do You Start with Imaging System Design. View the whole video at th-cam.com/video/hKb_mH76VG0/w-d-xo.html Zemax and OpticStudio are registered trademarks of Zemax LLC. www.zemax.com/
Quick Wins: The Auxiliary Optics Used with the Basic Shapes Summary
มุมมอง 1.2K3 ปีที่แล้ว
No sound or captions, video only Here's a 2:43 summary of my 20 minute video on The Auxiliary Optics that are used with the Basic Shapes of Imaging Systems. View the whole video at th-cam.com/video/RN2w7deEKRg/w-d-xo.html Zemax and OpticStudio are registered trademarks of Zemax LLC. www.zemax.com/
Quick Wins: Basic Shapes Imaging Part 1 Summary
มุมมอง 2.7K3 ปีที่แล้ว
No sound or captions, video only. Here's a 1:49 summary of my 20 minute video on The Basic Shapes of Imaging Systems. View the whole video at th-cam.com/video/RhIRUtR0l6I/w-d-xo.html Zemax and OpticStudio are registered trademarks of Zemax LLC. www.zemax.com/
Where Do You Start? Basic Imaging System Setup in Zemax OpticStudio
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Where Do You Start? Basic Imaging System Setup in Zemax OpticStudio
Part 2: Auxiliary Optics for the Basic Shapes
มุมมอง 5K4 ปีที่แล้ว
Part 2: Auxiliary Optics for the Basic Shapes
The Basic Shapes of Imaging Systems: Part 1
มุมมอง 11K4 ปีที่แล้ว
The Basic Shapes of Imaging Systems: Part 1
Great video. Thank you very much! Am I correct to say that if the lens I'm designing only concerns a very narrow field of view, then it is ok to use a simple relay lens e.g. an achromatic pair?
It could be. Look at the chief ray angle to see how quickly the rays diverge from the image plane. It's the chief ray rather than the field of view: a telecentric lens may not need a field lens but could still have a wide field of view
@@marknicholson5508 Thank you!
Great videos to connect optics knowledge with a software. Thank you for sharing back your knowledge. Please kindly post : when is part3:Mobile phone lenses coming. Also Please cover A- Telecentric lenses along with use of features in Zemax system explorer like how to correctly setup AFocal system, telecenteric lens... B- please have video on Optimization tab features what each means and C- please go through Analysis tab on what each features mean. Thank you so much
Hi,Mr Mark Can you help me please to check my system correctly?
🎉amazing 👏
Wow, outstanding videos, and what I was looking for. Thank you for sharing, my photography and lens understanding journey just got some better "illumination".
With the likes of an air spaced doublet, do you actually need the large refractive index difference between the air and the glass? Or might you be able to use an intermediate index optically transparent medium like an immersion oil or Canada balsam to help reduce reflections? Perhaps a balsam type cement would also mechanically secure required placement.
Well, add an index-matching layer between the elements and it becomes a cemented doublet, not an air-spaced doublet. But the power of a surface is (n2-n1)/R, so yes making n2 = 1 and n2 ~1.5 gives you a lot more power than using intermediate values
Is there readily available software to make lenses on a CNC machine (similar to how freeform spectacle lenses can be made)?
Try googling for Diffsys
thank you for the videos! is it possible to download these sketches in high quality somewhere?
I'd just do a screen grab of the final page. I don't have these in higher than HD resolution anyway, so a screen grab will be as high a resolution as it gets.
wonderful! thank you very much
sir if the object close to lens or object as a self luminous components like an LED then which type of aperture will use ?
You can use all of the available types, but since the object is so close to the pupil you should use cos^3 *apodization* of then pupil to correctly describe the illumination across the pupil.
@@marknicholson5508 you make me happy by replying thank you so much sir can i ask more question ?
@@user-kc5fg3ry6s sure. Just post here.
waiting for your wide angle lenses tutorial
Listen man. Getting taught by the ex-CEO, completely free, as an undergraduate student in applied physics, is of immeasurable value. A big thank you!
My pleasure!
Thanks for the video mark!
Thank you very much for such a great video! Waiting for a similar one talking about the condenser lens ;)
Hi Mark, Thanks for the wonderful video. Can you please do a video on the design of microscope objective lenses?
Thank you for wonderful lecture!! Hope you post again
Hope you can post more videos like this!
Such a great video. Thank you!
Welcome back after 2 years!🎉 Great video. Thanks for the explanation!
You were missed, Mark!
Well done!
Very helpful. Thank you! very much
Thank you very much for your video! It's very helpfull!
Hi sir, Can you please share all the slides provided in summary part of the video, it will help us to practice in real life and follow your notes step by step. Thanks !!
Hi Mark, this is a great video not only in the main substance but also in the nifty tricks.. I just watched this video but I'll watch all of your videos for sure. I also have a specific question re cooke triplet. Is it possible to design a cooke triplet with about 100x demagnification, let's say taking object size of 20 mm and making it 0.02 mm. The design does not have to be necessarily compact. I'm just wondering if there is a principle problem with this much magnification power. As far as I can tell, for cooke triplet to work, it needs to somehow have some symmetry in power of the lenses and this would make it not a good design for high magnifications. Thanks!
It's always a question of what the performance specification is. Cookes are a good choice for mid-field (say 40 degree field). Best bet is to try it...if it outperforms our spec try two lenses instead ion three, if it underperforms try maybe a Tessar (make the rear lens of the Cooke a doublet)
Is there any constraint which tries to restrain the desired fov in the given detector size or at image surface? If any can you suggest the operand. Thanks.
Sure. Use REAY to have the desired image height on the image (or any other) surface
If softwares like zemax can optimise and give rise to best possible lens then why one need to add multiple lenses why can't we work with single lens as the ultimate goal is to have proper focus?
Hi Anil. The point is that a certain shape can only do so much with a given field and wavelength range. If you need more than a single can give, you have to provide more degrees of freedom. These can be extra surfaces, or aspheric coefficients, or maybe diffractive surfaces. Within the Basic Shapes series I'm keeping to spherical optics and showing how any why more complex shapes give better performance
@@marknicholson5508 Thanks. It was helpful to understand.
Hi, I am new to Zemax, I just got a job ( first after my PhD) as an optical engineer working with microscope designs. Question: (1) what fits better to my new profession Zemax or Zemax OpticStudio or maybe there are the same; (2) which tutorials I should watch at the beginning - any suggestions? thanks
what about now ?
This series is amazing, would love to see more of it. I've been always curious on how a focusing system is designed for a lens to be able to used effectively at landscape and portrait distances.
You didn't explain how was the merit function prepared
Mostly this is prepared automatically based on the constraint selected in merit function wizard. But if you want to add more constraint to your design you have to be clear what optimization you require in your design like what is the target value one is looking for and what will be weightage to that constraint while optimising. But yeah it will be better if we can get an example from MARK himself, It will be helpful. Sir please consider it for a new video.
Hi Mark, thanks for these videos. Did you post Part 3: Mobile Phone Lenses? Thanks
Not yet...that one is coming. I really need to sit down and do more of these...
@@marknicholson5508 These videos are excellent, please continue. Thank you.
So, as I understood it, the number of rings is set to 5 because the optimizer can use higher degree aberrations to compensate for the lower ones, and for this reason, an attempt to control the aberrations manually would not be as efficient as when done by the automatic optimizer. Thank you for the video. It's really appreciated!
It's my pleasure, thank you. The optimizer is reducing the RMS spot size, and the question is, how many rays do we need to trace to get an accurate representation of the RMS spot? Grids of fixed size suffer from sampling issues, and so you find yourself tracing more rays than needed. Gaussian quadrature works by fitting the rays traced to a polynomial of fixed order, so that as long as this order is higher than the highest radial order of the pupil then we can guarantee that we will accurately measure the RMS spot. In general, n rings will compute the RMS wavefront or spot of a system where the highest order aberration is r^(2n-1). We optimize the RMS spot size to be as small as possible, rather tan optimizing the aberrations directly.
Dear Mark, very nice videos. I watched them all and learned a lot. Don't you have plans to make some videos about tolerance?
such an underrated channel.
fantastic overview! thanks! just discovered your channel! as a young aspiring optics designer this is a real treasure trove!
Thank you!
Excellent series,Hope you can update more videos！！！！
Mark, what's going on? Why no more tutorials? Will you be back?????
Don't worry, I have a few more in the pipeline :-)
Beautifully described.... Nice to see you here Mark
Mark, I am grateful for your guidance. Such a great series in optics and practical design. this is the third time I watch all of your videos. hope to see more coming soon. Thank you !!!
Great help for beginners like me！
Very nice videos
I was not able to reproduce your results after optimization. I think I reproduced your original file accurately. Any suggestions. Can you look at my original file?
What wonderful insights. Thank you!!
Please a video optimizing the Tessar lens
Hi Mark! I tried to make magnifying lens with the lens data on your video but the radius of the 3rd surface keeps changing to "Infinity" after I give the value -180.11|F. Why is that happening? Please help me.
Make sure you have put a glass on that surface
@@marknicholson5508 I gave exactly the same values as in your data. Could you please tell me what was the aperture setting you gave? And also what is the value for F/# for Radius of surface 3?
I am really grateful that a channel like this exists, for an amateur hobbyist this really accelerates my understanding for experimentation. Lots of nagging questions answered in one. I hope you do more!
Thank you for such a great initiative. I would like to zoom lens design with off-the-shelf lenses. How to start with the chosen lenses and how we can substitute a different lens to have a better performance. Or in general optimization of imaging systems with off-the-shelf lenses.
Thank you very much. The general method for designing with off-the-shelf lenses is to design the best possible system the way I describe in this series, and then swap out lenses for off-the-shelf lenses of equivalent power. Note however that OTS lenses tend to come in fairly limited shapes, mainly plano-curved or bi-curved. This generally means you need more lenses in the system than you would if you used custom lenses. I'll be covering this in 2022.
This video and the next one are part of "extra materials" in an Optics Studio training I am doing. You do an amazing job Mark, this videos are excellent! Thanks so much for your contribution to my learning! Looking forward to watching the rest of your videos.
Thank you very much!
Thank you so much for this library of videos you made till now. In a few weeks I will start my first job outside of academia and will have also my first contact the direct design and manufacturing of optical setups (with less trial in error on the lab bench). And this kind of content helps me to prepare so much!
Thank you! Good luck with the new position
This is a great series, thank you for putting this together. It's so helpful to see the end-to-end workflow and good practices with the software!
But how do I sketch ..