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01-17-2021, 04:37 PM

rbaker started a thread Eye Balm in General Optics and Eyecare Discussion Forum

0 replies | 40 view(s)

01-17-2021, 04:00 PM

PRECISIONLAB replied to a thread OSHA stamp for my lab in General Optics and Eyecare Discussion Forum

Marking Pliers (vigoroptical.com)

2 replies | 65 view(s)

01-17-2021, 03:49 PM

mshimp replied to a thread OSHA stamp for my lab in General Optics and Eyecare Discussion Forum

Hi Diane. Welcome to optiboard! Check with https://precisiontooltech.com/optical-catalog/#page=117

2 replies | 65 view(s)

01-17-2021, 01:42 PM

Robert Martellaro replied to a thread Old Tunes on Youtube in Just Conversation

Dr Hook & The Medicine Show - Penicillin Penny 1974

1319 replies | 475753 view(s)

01-17-2021, 01:17 PM

Robert Martellaro replied to a thread Define High Powered positive lens in Ophthalmic Optics

I would draw the dividing line at about 8 D, where best form theory collapses above that power with plus power lenses. Best regards, Robert...

4 replies | 302 view(s)

01-17-2021, 12:50 PM

Robert Martellaro replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

Hi Ed, Lenses with cylinder power also produce a separate prismatic effect through the meridian of the lens containing the cylinder power, 90°...

10 replies | 163 view(s)

01-17-2021, 11:12 AM

PRECISIONLAB replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

My perspective on this discussion. Is Opticampus applying the 10 mm decentration to the power in total listed as sphere (+5.00) and not +2.50 @ the...

10 replies | 163 view(s)

01-17-2021, 10:36 AM

MartinC replied to a thread Rodenstock's White Label PAL 2 M Organic in Progressive Lens Discussion Forum

hi, that means its a progressive generation 2 , length m and material 1.60

1 replies | 1431 view(s)

01-17-2021, 09:54 AM

DianeMCaster started a thread OSHA stamp for my lab in General Optics and Eyecare Discussion Forum

How do I go about getting a stamp for marking the lenses in our office lab to make them safety glasses? Thanks in advance

2 replies | 65 view(s)

01-17-2021, 08:20 AM

Jaketull replied to a thread WTF is going on with Zeiss? in General Optics and Eyecare Discussion Forum

I needed to get a single pair for a patient. I can literally get anything else, but these are unavailable.

2 replies | 99 view(s)

01-17-2021, 05:33 AM

Junses replied to a thread Possible cause of Autism, Asthma and other diseases... in Just Conversation

Thanks! Good articles to observe.

3 replies | 1536 view(s)

01-17-2021, 01:48 AM

Lensman11 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

Not to be repetitive the cylinder is the value of the difference of the two Primary powers if you want to say it has power that is fine. If it has a...

10 replies | 163 view(s)

01-16-2021, 09:36 PM

Kwill212 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

You seem to have answered you own question? I'm not sure what else I can add. The cylinder power is the difference between the principal meridians, 5...

10 replies | 163 view(s)

01-16-2021, 09:20 PM

Kwill212 replied to a thread WTF is going on with Zeiss? in General Optics and Eyecare Discussion Forum

I'm pretty sure this happened Jan 1 of 2019. Zeiss moved all freeform lenses and coatings in house. Why would you even bother trying to get Zeiss...

2 replies | 99 view(s)

01-16-2021, 08:00 PM

Jaketull started a thread WTF is going on with Zeiss? in General Optics and Eyecare Discussion Forum

I’ve talked to three labs that used to be able to get Zeiss and had a fine relationship with them. Now they can’t get any of their products. I’ve...

2 replies | 99 view(s)

01-16-2021, 07:54 PM

Lensman11 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

The cylinder represents the difference in power between the two principal meridians. When neutralizing the lens in a vertometer you will not find a...

10 replies | 163 view(s)

01-16-2021, 06:03 PM

Lelarep replied to a thread Maui Jim Polarized picture in General Optics and Eyecare Discussion Forum

Seems like these are the guys you'd want to work with: ...

1 replies | 88 view(s)

01-16-2021, 04:52 PM

Kwill212 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

You've lost me. How does the power go from +5.00 to 0.00 is the cylinder doesn't have any power? A more detailed response can be found here, in...

10 replies | 163 view(s)

01-16-2021, 04:01 PM

bta89 started a thread Maui Jim Polarized picture in General Optics and Eyecare Discussion Forum

I know Maui Jim makes a polarized picture with a parrot to show the effects of polarized lens. Are there any other companies out there that do a...

1 replies | 88 view(s)

01-16-2021, 03:34 PM

Lensman11 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

Kwill212 please give a more detailed explanation of your solution. The cylinder on a lens has no power it only represents the difference between the...

10 replies | 163 view(s)

01-16-2021, 01:18 PM

Kwill212 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

Take the two parts separately. 5.00 sphere decentered in 10 mm gives you 5D BI prism. Then do the cylinder. Prism created by decentering a cylinder...

10 replies | 163 view(s)

01-16-2021, 11:24 AM

EdSheridan replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

Hi Lensman, thank you for your response. To be sure, I assumed the OptiCampus calculation was correct. In years past, I would have picked up the...

10 replies | 163 view(s)

01-16-2021, 08:11 AM

OcuSky replied to a thread Looking for partner (optical shop owner) in UK in General Optics and Eyecare Discussion Forum

Business is tough, let's find ways out.

2 replies | 139 view(s)

01-15-2021, 11:17 PM

amitverma1 started a thread Center thickness fomulae with base curve into account OR chart in General Optics and Eyecare Discussion Forum

Before I decided to post this, I searched through the web and this site but didn't find exactly what I am looking for. I would like to know if...

0 replies | 97 view(s)

01-15-2021, 08:09 PM

David47 started a thread Pattern maker - Takubomatic PM-7 replacement? in Optical and Ophthalmic Equipment

Hey guys, I need a replacement for the good ol' faithful takubomatic PM-7 as the mechanism has seized beyond repair. I've seen some floating around...

0 replies | 47 view(s)

01-15-2021, 07:00 PM

Lensman11 replied to a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

I would guess you are calculating the power at 180 and then using Prentices rule for prism. That does not yield the correct answer except if the axis...

10 replies | 163 view(s)

01-15-2021, 05:40 PM

EdSheridan started a thread Induced Prism in a direction I would not expect? in Ophthalmic Optics

This has been puzzling me for a number of years, I'm sure someone smarter than me knows the answer. If I have a lens with the RX +5.00-5.00 x 45 and...

10 replies | 163 view(s)

01-15-2021, 04:49 PM

Alex Camblor replied to a thread Stock Lenses in General Optics and Eyecare Discussion Forum

I like utilizing Zeiss stock lens program, and they ship overnight so you dont need to keep a large inventory of different lens materials/coatings. ...

2 replies | 131 view(s)

01-15-2021, 04:00 PM

Quince replied to a thread Stock Lenses in General Optics and Eyecare Discussion Forum

I would highly suggest Vision Ease for poly clear and poly AR as well as high index with AR. They offer a material based blue-light filter in those...

2 replies | 131 view(s)