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Science Forum Index » Optics Forum » Easiest way of showing all LEITZ lens aberrations at web
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| mustafa umut sarac |
 Posted: Mon Jan 07, 2008 7:33 pm |
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Guest
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Hello ,
I used few leitz lenses and I fall in love with them. I can write a
novel about them.
Now I want to analyze these lenses with the help of their patent
drawings and a free software for to map their every single specific
aberration on a graphic.
My intention is to compare few similar lenses - like summicron and
summarit - from each single specific aberration on each point of film.
Is it usable ?
Is it tried before ?
Is there a practical way for to show these maps ?
Best regards ,
Mustafa Umut Sarac
Istanbul |
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| Helpful person |
| Posted: Tue Jan 08, 2008 3:02 am |
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Joined: 22 Jun 2004
Posts: 678
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On Jan 8, 12:33 am, mustafa umut sarac <mustafaumutsa...@gmail.com>
wrote:
Quote: Hello ,
I used few leitz lenses and I fall in love with them. I can write a
novel about them.
Now I want to analyze these lenses with the help of their patent
drawings and a free software for to map their every single specific
aberration on a graphic.
My intention is to compare few similar lenses - like summicron and
summarit - from each single specific aberration on each point of film.
Is it usable ?
Is it tried before ?
Is there a practical way for to show these maps ?
Best regards ,
Mustafa Umut Sarac
Istanbul
I'm sorry to tell you this but what you suggest almost certainly will
not work. The published patent files (for obvious reasons) are not
the same as the manufactured designs.
I've never understood the reason for patenting individual lens designs
(as compared with construction types). As they are not manufacturable
as is, and the actual design is not the same, they protect nothing.
In the past I've assumed the reason is that investors will see the
list of patents which will increase the perceived value of the
company.
www.richardfisher.com |
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| Helmut Wabnig |
| Posted: Tue Jan 08, 2008 5:44 am |
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On Mon, 7 Jan 2008 21:33:43 -0800 (PST), mustafa umut sarac
<mustafaumutsarac@gmail.com> wrote:
Quote: Hello ,
I used few leitz lenses and I fall in love with them. I can write a
novel about them.
Now I want to analyze these lenses with the help of their patent
drawings and a free software for to map their every single specific
aberration on a graphic.
My intention is to compare few similar lenses - like summicron and
summarit - from each single specific aberration on each point of film.
Is it usable ?
Is it tried before ?
Is there a practical way for to show these maps ?
Best regards ,
Mustafa Umut Sarac
Istanbul
There is a lens patent collection named "Lensview"
http://www.ods-inc.com/
(not to be confused with the same name gravitational lens pages)
Check if your Leitz lenses are in there?
Check their prices :-)
Patent files sometimes give quite detailed informations,
sometimes less.
Google "patent search"
http://www.uspto.gov/patft/
The OSLO demo is free
http://www.hearne.com.au/products/oslo/demos/
Any other free optics demos known?
ROADRUNNER optics CAD still available,
or changed the name again?
Jim Klein, help!
FRED, how about them?
ZEMAX demo used to exist once long ago.
VOB optics?
I just notice that I lost my optics link list.
w. |
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