Head-Up Display
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- Опубликовано: 20 авг 2024
- The Head-up Display is a home-made version of the displays used on military jet fighters but designed and built using off-the-shelf software and materials. HUDs essentially "project" an artifical image that appears to float in mid-air and to blend with the image of the real world.
The optical design is based on a Petzval lens with a field flattener similar to the designs used on most jet fighters and was developed and optimized using the OSLO EDU software. The optical performance of the design was validated by comparing it against the performance of the A-10 HUD provided in the book "Optical Design for Visual Systems" by Bruce H. Walker. Overall, the optical performance is very good with most optical aberrations being well corrected and comparable to the A-10 HUD design. The only exception is spherical aberration which was impossible to correct to optimal values due to the difficulty to obtain aspheric and doublet lenses of large radius which are very expensive. Nevertheless, the performance is very good and results in a high quality image that is comfortable to look at.
The image is provided by a common LCD display that I modified to provide the high brightness required for the HUD image to be visible against daylight. The modification consisted in replacing the original backlight of the LCD by a high power LED light. The LED light generates lots of heat both on its back surface and on the LCD panel so a heat sink and cooling fans were added to keep the temperature under control.
A Raspberry Pi is used to provide video signal to the LCD display and to distribute electrical power from the USB port to the cooling fans.
The structure was designed in CAD software and manufactured using a 3D printer.
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I need this...
Hiiiiiii love the vids
Haha was literally just watching your video prompting the search for whether any simmers have made collimated HUD sights
Love it, it's outstanding work and one of the coolest home-made projects I've seen. I awarded you on Reddit, and I leave here as well my huge appreciation for your project :)
I would really like to read a larger/detailed explanation of how you made it. Surely a lot of other people would be very interested, and writing about it can help to promote your project as well.
would love to see a breakdown of the parts and how it works!
Simple neat design. Well done!
Fantástico!!! Continua com bom trabalho
awesome
Impressive! I’d pay for the design files!
DCS players:
Increíble!!! Awesome😮
Wow, that impressive
Brilliant!
This is certainly by far the best homemade collimating sight/HUD I've ever seen.
Would you be willing to share the optical formula and lens sourcing?
My trouble has been finding a lens that is suitable for collimating a flat field while having a large enough aperture for a reasonable HUD size.
awesome!!
pls tutorial
Can you give more information how someone can build the same in their home? Can you do a detail video or write it on your site. If this is possible of course. Nice work by the way :)
I have all albums of Koan ;-)
Cool Stuff! Love it
Awesome!
Wow...
Is there any github repo for this amazing project?
Salut,
Super travail !!!
Il me faut un plan pour reproduire cette dinguerie
I want this on my cars windshield so bad
I want this in my hud
I'll take 5 of these. Bill me!
Might be an idea to put a link in the description, rather than just in the video...
can you please tell me , how can I get this ?
I'm trying to develop a hud for motorcycles. It would greatly improve rider safety by keeping focused on the road ahead. How small can a hud like this be developed?
Hello Joao,
great work! I'm really astonished by the brightness of the LCD screen. You said you used a powerful LED as a backlight. Could you give us the specs of the screen size and the LED power output? I guess you used a diffusor lens to get an even light distribution. I've been building gunsights in reduced scale with achromatic lenses: ruclips.net/video/SYMjtjod0AE/видео.html
Hello! Thank your for your kind comment, The Display I use is a 7inch LCD from Waveshare. The backlight is a simple LED lamp from eBay whose output is 60W (12V 5A). For the diffuser, I just used the diffuser film from the LCD original backlight system.
I checked your videos and I loved them. Your stuff is very good too! I actually had searched the internet before for gunsight videos but for some reason never came across yours. I’m very glad you shared them with me!
@@VoltaicoDevelopment Thank you very much for your quick answer. I didn't expect the LED to be that powerful, wow. Now I understand why you need the ventilators.
I estimate that your HUD is more than 100mm wide. As you said in the descrition, achromatic lenses are very hard to find to find in that size. But in the 80- 90mm range you can get them more easily and relatively cheaply on aliexpress. I always use two lenses combined because short focal lengths are harder to get.
Here's my idea to display real flight data: Buy a flight controller for drones /RC planes with GPS and OSD module (on screen display) and connect the video signal to your screen. Then you have real time indication of attitude, speed, climb speed, heading, distance from home, etc. Search for "Betaflight OSD" on YT and you'll see. The only issue is that the font is always white and you can't change its color. You might need a green filter but that would cost brightness...
Just an idea. There might be a market for ULA pilots. I sold my 50% sights to real pilots who wanted a compact sight for mock dogfights in a group.
I wonder if it would be possible to build a version of the HUD that has a focus to a pre set distance rather than infinity, this would allow you to place it in front of a display or projected image and have focal points match for flight simulation purposes.
Yes it certainly is possible. It's just a matter of bringing the image source slightly closer to the lens assembly.
This HUD allows to do that because the position of the lenses and the image source are adjustable.
how you get the glasses
Well How did you make it???
Hi! excellent project. How can I contact you for more info about this project?
I can pretend im a hind D now.
how did you prevent ghosting on the hud?
The combiner glass has an anti-reflection coating on the opposite/outside face to eliminate the ghosting.
@@VoltaicoDevelopment thanks for the reply can you give me an example of what you used? thanks
@@fon-tijn Certainly. I obtained the glass from this manufacturer: telepromptermirror.com. To be more specific, the glass I chose is 70/30 transmissivity/reflectivity with 3mm of thickness and the shape was custom designed by me and cut by them. The quality of the glass, the cut and the finishing touches were amazing.
Are u still alive bro??
Yes, alive and kicking! :D
@@VoltaicoDevelopment yeeeiii, hey! I have an idea 💡 to my helmet bike, can you explain some theory stuff about optical Len's to help me with my project pls? Do you use telegram? Or Instagram
@@VoltaicoDevelopment mind if a breakdown or review of the head up display and how to make it?
@@Lerxn and @PacoGCreador , is it me, is it like @VoltaicoDevelopment is allergic to giving actual technical details of the project. Sounds a lot like he didn't actually design the project, doesn't know actual details about it, and is passing off someone else's work as his own for clout and cred. He hasn't once listed specs of any of the lenses used beyond general useless info, nor has responded to anyone's questions about what specific lenses were used both in public and private. People who genuinely design and create things of their own openly talk about all manor of details about their work proudly; This guy hasn't. I smell a fraud.