The attached is a reprint from an article on free-form technology that originally appeared in Refractive Eyecare for Ophthalmologists.
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The attached is a reprint from an article on free-form technology that originally appeared in Refractive Eyecare for Ophthalmologists.
That was a informative, useful and fascinating article. thank you very much for the effort you put in
Hey Darryl,
I am curious about the term "free-form" I was under the impression that some company actually trademarked it. Do you happen to know anything about that? By the way liked the article , but you have written better more informative articles and that one almost felt rushed.
I think Shamir or someone may have tried to trademark a form of it at some point (which could be a particular combination of words or even a logo design), but I don't recall for certain. If it is ever approved as a trademark, I suspect that the trademark would have to apply to a pretty specific use of the word, since the word freeform is a common term (definition) that has been used to describe lens surfaces for some time by several companies. Generic terms cannot be trademarked.Quote:
Originally Posted by Harry
Yes, it was really a lot of information to cover in the number of pages I had allotted to me. The magazine actually picked the title, the topic, and the subtopics; I had to fill in the rest. ;)Quote:
Originally Posted by Harry
It was a great article all the same, I guess opticians are just spoiled in the fact that we get to read articles with more attention to detail.Quote:
Yes, it was really a lot of information to cover in the number of pages I had allotted to me. The magazine actually picked the title, the topic, and the subtopics; I had to fill in the rest.
Great article Darryl, thank you for sharing it with us. There is very little written on this subject that is not associated with a particular manufacturer. I for one would love to see more free form info published.
Quite useful information for me and thanks a lot.
I'm glad you found it uesful. However, that article is actually pretty old. I would recommend the article Optics of Free-Form Lenses, if you are looking for something a little more relevant.Quote:
Quite useful information for me and thanks a lot
Best regards,
Darryl
Thanks Darryl. Actually I have got this copy also after I found your older instroduction interesting. I searched your name and got the later one from this forum.
Best regards,
Michael
Another great article! What has changed at Zeiss since this was written. I am waiting for a rep to contact me about the fancy new machine and have yet to hear from him/her.
I need trivex for all my drill jobs- 70%- is it in the near future?
Respectfully,
Craig