Looking for cling film type pd ruler or seg height measurement device. Does anyone out there know where I can get some? I've looked at some of the major optical supplies stores but can't seem to find them.
Looking for cling film type pd ruler or seg height measurement device. Does anyone out there know where I can get some? I've looked at some of the major optical supplies stores but can't seem to find them.
~ Erin
ABOC
IMO, the reason why you won't easily find these.......is because the ability to measure is decreased because of all the surfaces involved. I usually find that removing the cull lenses where possible is the best. In the case of rimless, use a lens check and grid several lines, with water-soluble ink, on the lens before measuring works best.
You could use these except for rimless/nylor mountings as you require a frame eyewire groove to insert the bottom of the device into.
http://www.hilco.com/catalog/catalog...DType=internal
The trusty ruler and steady hand are quickest and easiest after enough practice.
At the beginning for practice I would suggest using a fine marker, ensuring the client has normal chin posture, and you are both at the same eye level. Place an ink mark on the cull lens, remove frames, draw a straight horizontal line on the lens at the ink mark, put frames back on and check for sufficient heights while client is sitting and then possibly standing/walking. Then measure with ruler if satisfied.
I have also used clear tape on the lens with the top being the height I want and then measure to the top of the tape with a ruler when.
Didn't LC use those things back in the day??
I like the Seg hi thingies you get from Hilco,My wife sold me on those when I was making my transition from a lab rat to a dispenser. Yes, only really good with full frames, but, outstanding for those, and yes, some of the Lenscrafters use them,( That's where we were at the time) otherwise I use the marker on the demo lens.
LC did have the cling film things on a roll at one time. I guess they decided that Sharpies were cheaper.
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