I need some new glasses, so I went to Zenni............However

I want bifocals with a polycarbonate lens. And Zenni does not do bifocals in Polycarbonate. And they say their polycarbonate lens are not OSHA approved. I tried to get what material they use so I could look up the specs. but I couldn't get that info from them.

So does anyone know of a good place to get bifocals in a material that is OSHA approved? Or at least material that comes close to being OSHA approved..

Dan

wrote in message
...
I need some new glasses, so I went to Zenni............However

I want bifocals with a polycarbonate lens. And Zenni does not do
bifocals in Polycarbonate. And they say their polycarbonate lens are
not OSHA approved. I tried to get what material they use so I could
look up the specs. but I couldn't get that info from them.

So does anyone know of a good place to get bifocals in a material that
is OSHA approved? Or at least material that comes close to being OSHA
approved.

Dan

AFAIK the rating depends on thickness, not material.

On Wednesday, April 16, 2014 10:20:39 AM UTC-5, wrote:
So does anyone know of a good place to get bifocals in a material that is OSHA approved? Or at least material that comes close to being OSHA approved.

I got my last pair of safety glasses he

Rx-Safety.com

Not as cheap as Zenni, but they are safety glasses.

On Wednesday, April 16, 2014 11:59:12 AM UTC-4, Jim Wilkins wrote:


AFAIK the rating depends on thickness, not material. It is both the material and a minimum thickness.

Why OSHA approved in the first place ???

I wear Poly in my glasses - they are continuous curve So I have
better than BI focus I have many focus. Handy when looking down
and it is still far or when you need more for close up you just
move the glasses and into a new mag lens area.

Poly are safety glasses - I can't believe OSHA doesn't - but likely
because no side protection... wear safety over them and you get
double protection. Just in case you break or crack the outter pair
you have the normal ones as backup without being glass in the eye.

I got mine when I was walking out onto the engineering floor to
check on my designs and trimming of wire mostly (uses surface mount
parts) might fly my way. That place was under safety control -
water dump for chems and boots, smocks and even head covers.

Martin


On 4/16/2014 10:59 AM, Jim Wilkins wrote:
wrote in message
...
I need some new glasses, so I went to Zenni............However

I want bifocals with a polycarbonate lens. And Zenni does not do
bifocals in Polycarbonate. And they say their polycarbonate lens are
not OSHA approved. I tried to get what material they use so I could
look up the specs. but I couldn't get that info from them.

So does anyone know of a good place to get bifocals in a material that
is OSHA approved? Or at least material that comes close to being OSHA
approved.

Dan

AFAIK the rating depends on thickness, not material.

On Wednesday, April 16, 2014 10:20:39 AM UTC-5, wrote:
I need some new glasses, so I went to Zenni............However



I want bifocals with a polycarbonate lens. And Zenni does not do bifocals in Polycarbonate. And they say their polycarbonate lens are not OSHA approved. I tried to get what material they use so I could look up the specs. but I couldn't get that info from them.



So does anyone know of a good place to get bifocals in a material that is OSHA approved? Or at least material that comes close to being OSHA approved.



Dan

I haven't used them, but I found this:
http://www.safetyglassesusa.com/safreadglas.html

In article ,
wrote:

On Thu, 17 Apr 2014 07:09:36 -0700 (PDT),
wrote:

On Wednesday, April 16, 2014 10:20:39 AM UTC-5, wrote:
I need some new glasses, so I went to Zenni............However



I want bifocals with a polycarbonate lens. And Zenni does not do bifocals
in Polycarbonate. And they say their polycarbonate lens are not OSHA
approved. I tried to get what material they use so I could look up the
specs. but I couldn't get that info from them.



So does anyone know of a good place to get bifocals in a material that is
OSHA approved? Or at least material that comes close to being OSHA
approved.



Dan

I haven't used them, but I found this:
http://www.safetyglassesusa.com/safreadglas.html
Glass?
Depends what you are trying to protect against. Flying grit od squash
balls.

Yeah, glass.

When I was a four-eyed kid in the 1950s, I had all manner of mechanical
hobbies. My Father's reaction was to get me industrial safety lenses,
which were made of tempered glass with a 2mm or 3mm minimum thickness
in the center.

I never broke a lens, and there were events where a broken lens was a
possibility.

I eventually ran across the standard for safety hard lenses - it should
withstand a 16-ounce steel ball dropped one foot into the face of the
lens.

So I tested the lenses form an old pair of glasses: dropped a 16 ounce
hammer head onto the lens, which was sitting convex side up on a piece
of wood. It took something like a 15" drop to break the lens, which
turned into glass crumbs.

So that's why I never managed to break one in service.

Joe Gwinn

On Thu, 17 Apr 2014 07:09:36 -0700 (PDT),
wrote:

On Wednesday, April 16, 2014 10:20:39 AM UTC-5, wrote:
I need some new glasses, so I went to Zenni............However



I want bifocals with a polycarbonate lens. And Zenni does not do bifocals in Polycarbonate. And they say their polycarbonate lens are not OSHA approved. I tried to get what material they use so I could look up the specs. but I couldn't get that info from them.



So does anyone know of a good place to get bifocals in a material that is OSHA approved? Or at least material that comes close to being OSHA approved.



Dan

I haven't used them, but I found this:
http://www.safetyglassesusa.com/safreadglas.html
Glass?
Depends what you are trying to protect against. Flying grit od squash
balls.

On Thursday, April 17, 2014 7:58:53 PM UTC-5, Clare wrote:
On Thu, 17 Apr 2014 07:09:36 -0700 (PDT),

wrote:



On Wednesday, April 16, 2014 10:20:39 AM UTC-5, wrote:

I need some new glasses, so I went to Zenni............However







I want bifocals with a polycarbonate lens. And Zenni does not do bifocals in Polycarbonate. And they say their polycarbonate lens are not OSHA approved. I tried to get what material they use so I could look up the specs. but I couldn't get that info from them.







So does anyone know of a good place to get bifocals in a material that is OSHA approved? Or at least material that comes close to being OSHA approved.







Dan



I haven't used them, but I found this:

http://www.safetyglassesusa.com/safreadglas.html

Glass?

Depends what you are trying to protect against. Flying grit od squash

balls.

Excerpt from my link (above):
"...All styles feature shatterproof polycarbonate lenses, are ANSI Z87.1-2010 certified and provide 99.9% UVA-UVB protection...."

I would have no problem if they were made of glass as long as they honestly met the safety standards advertised.

On Fri, 18 Apr 2014 06:37:40 -0700 (PDT),
wrote:

On Thursday, April 17, 2014 7:58:53 PM UTC-5, Clare wrote:
On Thu, 17 Apr 2014 07:09:36 -0700 (PDT),

wrote:



On Wednesday, April 16, 2014 10:20:39 AM UTC-5, wrote:

I need some new glasses, so I went to Zenni............However







I want bifocals with a polycarbonate lens. And Zenni does not do bifocals in Polycarbonate. And they say their polycarbonate lens are not OSHA approved. I tried to get what material they use so I could look up the specs. but I couldn't get that info from them.







So does anyone know of a good place to get bifocals in a material that is OSHA approved? Or at least material that comes close to being OSHA approved.







Dan



I haven't used them, but I found this:

http://www.safetyglassesusa.com/safreadglas.html

Glass?

Depends what you are trying to protect against. Flying grit od squash

balls.

Excerpt from my link (above):
"...All styles feature shatterproof polycarbonate lenses, are ANSI Z87.1-2010 certified and provide 99.9% UVA-UVB protection...."

I would have no problem if they were made of glass as long as they honestly met the safety standards advertised.
For my own use, I wear glass lens bifocals 100% of my waking hours -
weather working, driving, reading, or whatever. I do not engage in
ball sports or hockey, ar anything else where large fast-moving
objects are common. When I weld I use welding goggles over the glasses
which prevent hot spatter from damaging the lens (believe it or not,
"plastic" lens are less likely to be damaged by hot spatter than
glass!!) If I'm working under a vehicle or in other places where grit
etc is likely to fall, the glass is less likely to be scratched or
chemically damaged.
The problem comes with the darned anti-glare coating.......