laser_system Photo Gallery by fotoopa at pbase.com

Started in 2005, multiple version are made. The latter version is now 2009. The results stay into my galleries: "Flying insects 2005" , "Flying insects 2006", "Macro_2007" and "Insects in-flight 2008". The new version 2009 works now without arms to hold the lasers. 4 Lasers stay now oblique the support. 2 of the 4 lasers are IR version and 2 are green types. The IR version are for the optical measure lens (reflected IR light) The green version are for the operator for pointing to the insects. See the results of in-flight pictures: https://pbase.com/fotoopa/flying_insects_2009

setup 9899	setup 9894	setup 9896	external_shutter	detector
controller_2009	pwr_leds	pcb Connectorboard	pcb powerleds	pcb external shutter drive.
ir_adaptor1.png	kablering1.png	Photographing Flying Insects first version (2005). Part 1	Part 2	Part 3
Part 4	Part 5	Part 6	Part 7	Part 8
Part 9	Part 10	The new electro-mechanical shutter. Part 11	Part 12	Part 13
Part 14	Part 15	second field version 2005 photo1	second field version 2005 photo2	Laser setup flying insects version 2006
controlbox for laser and camera version 2006 (inside view)	nikon_10pins connector	ir_detector.jpg	Laser controller version 2007	laser controller version 2007
Controller version 2007 waterfigures	Controller version 2007 waterfigures (test hardware functions)	IMG_0298.jpg	IMG_1204.jpg	IMG_1364.jpg
IMG_1376.jpg	FV1_5231.jpg	MAX II nano CPLD board	IMG_1489.jpg	pcb detector

Guest		10-Jan-2009 21:51
Ah, forgot to mention. It's not only just the photos are beautiful but the electronics, mechanics and the workmanship are also beautifully done!

Guest		10-Jan-2009 21:45
Great info & clever designs! I see you post some more schematics and pictures. Thanks very much for your help and thank you again for giving me so many inspirations, both on the photography side and on the electronics side. best wishes -Thanh

fotoopa		08-Jan-2009 07:59
Yes, the focus setting of the camera is manual. and i'ts calibrated to match the intersection of the two laser beams. Flash are also set manual at fix power.

Guest		08-Jan-2009 03:46
Hi fotoopa Happy new year! Thank you very much for your detail explain of what's going on under the hood. I'm still have a question to clarify my understanding further. Is the focus setting of the camera is manual focus? Is it calibrated to match the intersection of the two laser beams? Thanks again. -Thanh

fotoopa		31-Dec-2008 08:03
Hi Thanh, I've added a few picture to this gallery where the hole lasersystem is explained. The lasers send during 20 usec light and wait after that 20 usec. The second lens measure the laserlight reflection and 20 usec later the environment light. Laserlight is always high than environment light even into the full sun. If something comme in focus the IR laserlight is reflected and give a higher signal to the optical lens. After subtraction of the both measurement the controller can decide if an insect is infocus. The hole delay is only 40 usec. This reflected value is in normal circumstance a digital signal between 10 and 50 but by means of a potmeter i can set the sensitivity between 3 units and 32 units minimal. The results are a very fast and accurate detection signal. Because the IR lasers are oblique compared to the camera the laser projections gives only a reflected signal at the photodiode if an insect is in foucus ( see the drawing principle.

Guest		31-Dec-2008 06:16
I came across your pbase page from www.hackaday.com from the insect photography rig. How does the laser vision work? How does it detect insect is in focus? Too many questions. Your skills are so amazing. I'm wondering how many degrees you hold :). Thanks very much for sharing your great work and giving us such great inspiration. I'd love to be able to build some thing like this some days. Need to work harder I guess. Thanks again -Thanh

majed		22-Jul-2008 13:39
wow great in flight shoots i jsut have my laser system with Nikon D300 but still don't know what is the setup for it if u have any tips for me plz

Soenda		22-Sep-2007 19:12
Technology now plays an enormous role in our lives, but we have few chances to see it on its own scale as you show it to us here. I was thinking about this aspect of your photography when I recently visited my dad. He was building himself a new computer, so I got to see the installed mother board and many other mysterious-looking components while he worked. Your photos have appeal and beauty beyond their educational value. I wish my visit had provided enough time to attempt such photos of my own. In the meantime, though, I can always come back and enjoy the amazing images that you have posted for us here.

hsphotogr		14-Jan-2007 07:19
hi fotoopa, please contact me, i couldn´t find your adress on the website. i have some questions about high speed photography. thank you. meuthen info@meuthen-photography.com

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