Changing Out Post Cure Lamps

You have received a message on the upper left side of your Post Cure menu screen that reads Service Required Press Help and are notified that its time to change your post cure bulbs.

Step One: Remove the Post Cure face plate/filter panel by pulling if off

Step Two: Slide both hands under the lamps with palms facing up

Step Three: Remove lamps by twisting them 90 degrees to unlock them and then gently pull them from the lamp holders

Step Four: Install new lamps by pushing them into the lamp holders and twisting them to lock them in place.

Step Five: Make sure the new bulbs are securely installed before continuing

Step Six: Snap the Post Cure face plate/filter panel back on

Step Seven: Call Bob Miller ext. 283 or Bob Lossman ext. 276 in our Service Department to walk you through resetting the lamp timers.  800-797-2743

Why Can’t I Use Expired nanoCLEAR AR Chemistry?

Since our AR chemistries rely heavily on nanoparticles to give them toughness and the right optical properties, they require a little more care than our other materials. To figure out how long they last we did long-term testing here at high, low, and room temperatures. We also thought about what they’d go through in normal storage and shipping. If you use your AR chemistry by the expiration date we expect your lenses to perform just as ours do here. If it’s past the expiration date or was stored incorrectly things aren’t as predictable.

Spending a long time at extreme temperatures or even just sitting around will eventually cause the nanoparticles to stick together. Once that happens their properties change and so do the coatings that are made with them. Expired chemistry can give you hazy coatings or ones that aren’t nearly as tough as they should be. It can also clog up the dispense filters in your nanoCLEAR unit or cause other coating defects like comets.

If we didn’t have to have an expiration date we wouldn’t use one. At this time nanoparticle-based liquid chemistries of all kinds just tend to have shorter shelf lives than those without them. If we figure out a way around it, you can bet we’ll use it. For now though, the expiration date is something we need.

What does the message, SERVICE REQUIRED PRESS HELP, mean?

Topic: You are getting ready to process a job or you have tried to process a job and the lenses didn’t cure properly when you notice that a message line has appeared on the upper left side of your Post Cure menu screen that reads SERVICE REQUIRED PRESS HELP.

The Reason Why: Your Post Cure Unit controls all of the functions for the Main Chamber.  It runs checks on the lamps, lamp intensity, filament power as well as the temperature of the heating oven from the time the unit it is turned on until you turn the unit off.  The System also monitors the current coming into your system and keeps track of the age of your lamps and air filter.  If there is something that the system checks that is out of calibration the SERVICE REQUIRED PRESS HELP line will appear in the upper left portion of the main menu screen.

The Fix: When you press the HELP button located next to the main menu screen you will get a screen that looks like this:

01         OK       Post Cure Temperature

02         OK       Light Intensity

03         OK       Lamp Power

04         OK       Filament Heat Power

05         OK       Lamp On Time

06         OK       Post Cure Heaters

07         OK       Lamp Temperature

08         OK       Line Voltage

09         OK       Communications

Any error detected will be highlighted and will have SERVICE in place of OK.

Example:  03      SERVICE   Lamp Power

If SERVICE appears, select the item that indicates service required and press the encoder to get specific instructions regarding the error and how to proceed in troubleshooting.

The instructions may guide you as to how to repair this issue or it may guide you to call the Technical Support Team at Optical Dynamics (1800-587-2743 Ext. 276 or 283)

Pack Your nanoCLEAR AR Unit Properly for Service

When returning your nanoCLEAR AR unit for service, always remember to follow the packing instructions correctly to prevent damage and unnecessary repairs.

Located in the back of the nanoCLEAR AR unit:

  • Remove power cord
  • Remove network data cable
  • Remove data cable from wash module
  • Remove video PC cable
  • Remove high pressure supply hose
  • Remove drain hose to wash module
  • Remove all chemistry inlet tubing and replace with white caps
  • Remove vacuum inlet
  • Remove monitor from stand
  • Remove monitor stand & push monitor plug down the tube that it is housed in

Located in side your nanoCLEAR AR system:

  • Remove black mold stages
  • Remove wash bowl ring
  • Remove chemistry ring
  • Remove chemistry bowl liner and discard
  • Remove chemistry bowl and clean all chemistry from bowl
  • Remove tips and filters and replace with red caps

Lock motion arm into position to prevent movement. If possible, place the motion arm in the chemistry bowl position and lower the arm. When the motion arm reaches the lowest point press STOP COATING BUTTON. Place bubble warp or packing material on either side of motion arm to prevent movement and install the shipping bracket provided.

Placing nanoCLEAR AR system in the special system box:

  • Place tape or the shrink wrap it came with on the front door panel to prevent door from opening during shipping

  • Gently place nanoCLEAR AR system into box making sure it rests inside the foam cut out inside of box
  • Gently place the top foam insert on top of the nanoCLEAR AR system and push into place
  • Close box and remove any labeling on the outside
  • Tape box closed and place the appropriate shipping labels on the outside

When your system has been boxed up and/or you have any questions, please call Optical Dynamics Technical Support at 8000-587-2743.

I Broke a Mold During Lens Production

The Q-2100 Lens system utilizes digital free form crown glass molds during the lens production process.  There is an infrequent possibility that a mold may break during production. Use the following tips to diagnose the reason.

Mold Breakage During the Demolding Process

Possible Cause #1: Mold was directly placed into the soaking solution before one mold was separated from the mold assembly and while still hot. This can cause thermal shock to the mold.

Solution: Demold one of the molds from the mold assembly prior to placing in the Q-Soak solution

Possible Cause #2: Improper technique when using the demolding tool

Solution: The operator needs to pry (not twist) the molds apart with the proper Optical Dynamics demolding tool. If the operator twists the demolding tool the corners of the tool may have stressed the mold to break or chip.

Mold Breakage Inside the Post Cure Chamber

Possible Cause: The mold assembly may not have been processed in a timely manner.

Solution: Ensure that the mold assembly is immediately placed into the Post Cure chamber after the initial does of light in the Main Chamber.

For additional technical support, please call the Bob’s at 800-797-2743 ext. 276 or ext. 283

 

Is it All About Index?

Simple Answer: No

It’s easy to get swept up in the excitement over a single number: higher index must be better. The simplicity is enticing. As with many technical topics, the reality is that a single performance aspect doesn’t provide enough information to judge true product quality. The idea that a lens with a certain index of refraction is a dead product or the next great thing just isn’t correct.

The More Technical Answer: Still No

If you’re into numbers, beyond index you also have to look at Abbe value, surface smoothness, processing-related deviation from target curves, required center and edge thickness (both for safety and the requirements of the frame it’s going in), lens power, your patient’s tolerance of chromatic dispersion, their eye movement patterns, the conscientiousness and equipment quality of the lab you’re using, etc. If you think it’s a lot to digest, imagine what it’s like for a patient trying to make the right decision.

Back To Simple: What’s the Wearer Say?

If you don’t want to spend the rest of your life trying to understand the minutia of every new lens that comes out, ask the people that have experience with the product. Optical Dynamics lenses have been judged by wearers and experts as some of best lenses they’ve encountered. Whether it’s a single vision or multifocal lens, people are impressed with the clarity and ease of patient adaptation. In the end, that’s really all those technical details are trying to convey anyway. Instead of using a bunch of time trying to decide if “the next great thing” is really that great, using a proven lens that wearers like can be safer and simpler.

The less simple explanation for the high praise we’ve received is that our lenses have exceptionally smooth surfaces, they precisely replicate the digital curves machined into our molds, and they are made from a lightweight, high Abbe polymer. Since the process eliminates the grinding and polishing steps normally used to make a lens, there are far fewer opportunities for machine or operator issues to cause optical problems.

A Fly In the High-Index Soup

The vexing thing about high-index lens materials is that the very people that need them most are also the most likely to experience one of their typical shortcomings. The more extreme the prescription, the more likely it is the wearer will be troubled by chromatic aberration in lower Abbe materials. For the most part, indices around the low 1.6’s are about the current limit on good Abbe performance. If you’re worried about chromatic dispersion, you can’t increase index greatly beyond where Optical Dynamics lenses are, so there’s not much thickness improvement to be gained. There can be significant cost differences though.

So if you have a moderate to low prescription where you don’t need the benefits of a high-index lens, high-index materials work very reliably. Hmmm, not the best story. It’s even less motivating when you think about the center and edge thicknesses required to produce a safe and sturdy lens for today’s rimless frames.

Don’t Just Take Our Word On It

When we say you should be using our lenses, there’s obviously a little bias involved. For a more impartial opinion, here’s what one of our customers has to say about them:

“Over the past couple years I have personally worn some of the “best” custom made progressive lenses available and the optics of the digital lenses from the Q-2100 are as good if not better. I am extremely impressed with the digital lenses the system produces and so are my patients.”

David Holliday, OD – Practicing since 1980 – Q-2100 user since 2000

Lens Troubleshooting

Question: I have a lens that is “speckled”, what can cause this and what can I do?

Possible Causes: Lens was removed from the annealing stages and cooled under running water while too hot. If a lens is cooled under running water while hot, it may have a “speckled” appearance caused by localized differences in the rates of cooling of the lens surface. These speckles can be numerous, irregularly shaped.

Solution: The lenses should be air cooled for several minutes before running water over them. If you have a “speckled” lens, returning it to the annealing oven for 5 to 10 minutes will usually eliminate the issue