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Looking of an anomaloscope. Anybody know where to find one?

Respectfully,
dbracer

I'm looking for a relatively economical spectrophotometer to use with spectacle lenses within my clinic. Does anyone know if such is available.

Respectfully,
dbracer

I was wondering if there is any place to get the spectral transmittance of the major sunglass brands, or all the brands if that's not a completely absurd concept.

If not - is there any...

These are Anti-Reflection Coatings or Accurate Radius Curvature processing?

You got in the latter = Accurate Radius Curvature. I've read some weird suggestions about them. ???

What's the skinny on ARC lenses? I'm completely ignorant.

Respectfully,
dbracer

I like it Fezz. Thanks. I try this.
Respectfully,
dbracer

You guys are amazing though. You have these little bits of info that are fabulous.

Have y'all seen William Rosenthal's book Spectacle and other Vision Aids: A History and Guide to Collecting. The...

Well... I agree that a good fit is a good fit, and there are plenty of good non-spring hinges now, but when I started (and maybe you started before me) the frame industry was a slipshod joke.

I...

"I could do more digging and look through some of my old textbooks, patent search papers, and notes......but I'd feel like I would need to get paid for my research and writing credits on anything...

Hey guys, I'm a bit of freelance writer.

Looking for info on the evolution of the modern spring hinge. What instigated it. Who started it. Who first designed it ...and such rot.

Got any...

Thanks guys. I'm sorry, and gal. Any more comments are welcome.

I understood Menrad as a pioneer, they were building high quality frames before any of those mentioned above as far as I know --...

I'm a bit of freelance writer.

Looking for info on the evolution of the modern spring hinge. What instigated it. Who started it. Who first designed it ...and such rot.

Got any suggestions.
...

Have you offered him a short Scotch. I like Jack Daniels Black Label. Frequently straightens out the distance, clears-up the near, and they really don't care 'bout the intermediate. Give it a try.
...

I'm fairly sure no one should.

Alright guys. Made a reply in the wrong format. It's been about 3 yrs since I been on this board. They say you can Edit/Delete. Where the "H" is the delete mechanism?

RT,
That is exactly the kind of information I've been looking for.

Thanks a bunch. Finally someone is willing to just state the facts. I appreciate your forthright sincere honesty.

So when a...

Good Point. I hadn't reviewed very well.

Thanks,
dbracer

RT,

Thanks for addressing the great accomplishments of lens production. You’ve made just my point. But you've brought up a point I hadn't considered. I have not considered the "cost factor." ...

You are correct that as a writer I’ve made little effort to distinguish between science, technology, and production, and it is my duty to choose words correctly. But, I think you may be hairsplitting...

(Barry) Be careful: It almost appears by your questions that you're looking for information to back your tentative conclusion, rather than the other way around.

(dbracer) It is a fact that I...

I'm writing a bit of free lance stuff for the general public. Magazine stuff.

I'm looking for the following:

1. Some hx on how the recent detailed aberration science and analysis got started in...

rbaker,

That's a pretty good source of ophthalmic hx. Thanks. Is there anything that hits the current era say.... 80s, 90s, and 00s?

Respectfully,
dbracer

I'm writing a bit of free lance stuff for the general public. Magazine stuff.

I'm looking for the following:
1. Some hx on how the recent detailed aberration science and analysis got started in...

I know of no company that handles optics and light aberration science better than Shamir, especially if you use their best. I believe few will argue -- if they've read the science.

And, I know...