What kind of lens is in a DVD player? I need them for a science project.

[ARCHIVED THREAD] - What kind of lens is in a DVD player? I need them for a science project.

Posted: 6/11/2015 2:23:15 PM EDT

I want to buy a lot of lenses to make cell phone microscopes:

http://www.instructables.com/id/10-Smartphone-to-digital-microscope-conversion/

I've used laser pointer lenses, but they don't work that great, I've had better results with a dvd writer lens. Unfortunately I don't have a lot of dvd drives to tear up (need 10 or so).

Anyone know what kind of lenses I might need (description etc) so I can try and find them from http://www.surplusshed.com/lens.cfm

Or anyone know a place to order these things?

Thanks.

Posted: 6/11/2015 2:31:19 PM EDT

[#1]

There's a link at the bottom of the instructables page that takes you to this and says they will work fine:

http://www.aixiz.com/store/product_info.php/cPath/46/products_id/374/osCsid/37cabc139b4f03b0e0a522178defae7e

Were you looking for something else?

Posted: 6/11/2015 2:59:50 PM EDT

[#2]

Yeah, I got those... they work, but not that great. I think they are a little too small. The DVD writer lens is about 9-10mm in diameter and works better... I'd like to order similar ones.

Posted: 6/12/2015 10:29:53 AM EDT

[#3]

I ordered one of these to try out:

AixiZ Blue Laser Glass Lens for 405-455nm

http://www.aixiz.com/store/product_info.php/cPath/46/products_id/153

Posted: 6/13/2015 11:58:34 AM EDT

[#4]

Keep in mind specific color lenses will have significant chromatic aberration in other colors and white light.

Posted: 6/17/2015 11:49:18 AM EDT

[#5]

The laser lens I mentioned seems to be working well, if any of you want to try this. It is a fun project.

Posted: 6/17/2015 1:45:55 PM EDT

[#6]

Post some pics.

I've been thinking about building one of these, but I'm not convinced that it's for real.

Posted: 6/22/2015 1:46:44 AM EDT

[#7]

I would love to see the results of an image created with a DIY microscope using this system.

Optical resolution could be improved by only using 633nm Red LEDs for illumination, then taking a picture and converting it to greyscale. That would get rid of any chromatic abberations, but would also leave you with a non-color image.

Posted: 6/22/2015 1:47:37 AM EDT

[#8]

Quote History

Quoted:
I would love to see the results of an image created with a DIY microscope using this system.

Optical resolution could be improved by only using 633nm Red LEDs for illumination, then taking a picture and converting it to greyscale. That would get rid of any chromatic abberations, but would also leave you with a non-color image.

View Quote

I built one today. So far I can't get the damn thing to focus no matter what I do.

I'm leaning towards "BS"

Posted: 6/22/2015 2:12:06 AM EDT

[#9]

Quote History

Quoted:

I built one today. So far I can't get the damn thing to focus no matter what I do.

I'm leaning towards "BS"

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
I would love to see the results of an image created with a DIY microscope using this system.

Optical resolution could be improved by only using 633nm Red LEDs for illumination, then taking a picture and converting it to greyscale. That would get rid of any chromatic abberations, but would also leave you with a non-color image.

I built one today. So far I can't get the damn thing to focus no matter what I do.

I'm leaning towards "BS"

You are always one step ahead of me on building geeky stuff. Thanks for saving me cash and time!

[ARCHIVED THREAD] - What kind of lens is in a DVD player? I need them for a science project.

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