Revolutionizing Precision Optics Measurement: Sydor Optics Harnesses Äpre Spectrally Controlled Interferometry (SCI)

Apre interferometer at Sydor Optics

Sydor Optics is widely regarded as a world leader in processing and delivering precision flat-surfaced, parallel, and wedged glass optical components. Patrick Drury, Director, Quality & Operational Excellence, Tom Grambo, QA Technician, and John Mandelaro, Precision Optics Manufacturing Technician Apprentice, share how they are using Äpre Spectrally Controlled Interferometry (SCI) to automate and speed the measurement process of the entire part.

When and why did you start working with Äpre?

We’ve been working with Äpre for around seven years. We use interferometers so often in our process, and we have so many pieces of equipment they approached us to beta-test an early version of their SCI interferometer. Apre leads the charge on scanning coherence. Other systems followed suit, but the competing technologies just aren’t the same.

Their service is better than the service of any other system that we have.  Äpre has a small group we can collaborate directly with – they’re responsive and eager to try new things. Their team is really good at getting back to us if we have questions on anything software related. Bob visits us to talk about the systems – he’s an owner. We don’t get that level of service from others.

What volumes do you work in?

On a given month, we check thousands of parts. Annually, I’d estimate it at 100,000 parts or more. We have three Apre systems that streamline our processes. On some programs, we test EVERY part, not just a sample, and this type of interferometer saves us 30 minutes per part in some cases. You can imagine how that adds up over time in these volumes.

 


On some programs, we test EVERY part, not just a sample, and this type of interferometer saves us 30 minutes per part in some cases. You can imagine how that adds up over time in these volumes.


How else does the interferometer save time?

A big time-saver is having the ability to set up and save part-specific parameters using the software. Say you’re measuring a wedge you might forget to change the refractive index. If missed our customers will demand a retest. The software saves us that step because it automatically loads all set up parameters when that specific analysis configuration is loaded. Plus scripting makes the multi-step process 5X faster by taking 4 separate measurements and doing them in one automatic sequence.

 


Scripting makes the multi-step process 5X faster by taking 4 separate measurements and doing them in one automatic sequence.


Tell us more about the scripting.

We hired John out of MCC’s Optical Systems Technology program. As an apprentice, he moves through every single department. He faced a big learning curve when he landed in the inspection department.

The apprentice program allowed him the time he needed to learn how to use the interferometer. And he just went further down the rabbit hole – he learned it and went the extra mile. He’s been working with Artur at Äpre on writing and implementing code to automate the measurement process so any one of the operators can load the part and run the script.

It’s been a huge benefit to the whole company and has also added to his skillset.

 


Apre interferometer at Sydor Optics

John Mandelaro, an apprentice at Sydor, works on automating their metrology for faster inspection.


How has it changed your experience in optics?

The problem-solving makes it exciting. Just seeing it work, understanding why, and empowering other people to keep projects moving. When you combine all these different skill sets: optics, manufacturing, quality assurance, and even sprinkling in some programming and scripting knowledge, it’s not just a job anymore. It’s a career. You’re changing the space that you’re in.

 


When you combine all these different skill sets: optics, manufacturing, quality assurance, and even sprinkling in some programming and scripting knowledge, it’s not just a job anymore. It’s a career.”

Tom Grambo, Sydor Optics


 

At Äpre we’re keeping our eyes on the horizon. Let us provide you with state-of-the-art systems to advance your process. Contact us today to get started.

Case Study: Interferometer Boosts Guernsey Coating’s Capabilities and Growth Opportunities

Guernsey Coating Labs, a Ventura, CA-based company has supplied optical thin film coatings to the industry for over 40 years. Guernsey recently purchased a Zygo interferometer with an Äpre software upgrade. Ty Guernsey, President and Founder, shares how this has assisted in expanding capabilities for her company.

What challenges led you to invest in interferometry?

The interferometer lets us control the whole process reducing our customer’s risk.

Guernsey Coating Laboratories is an optical coating house with the mission to support our client’s needs. Working with our clients, we can now provide substrates on their behalf. A complete product (substrate plus coating) has been beneficial for many clients since it saves them extra time and steps in having to buy glass separately.

In the past, it was up to the client to take the responsibility for surface flatness. With our Varian spectrophotometer, Zygo interferometer, with Äpre’s 1MP camera, computer, and software upgrade, our clients can have more data regarding their product with precision information even before the finished optic is delivered.

The interferometer lets us measure the flatness of the substrate prior to and after coating. This helps during the inspection process in order to reduce our customer’s risk.

We can now determine whether the substrate is up to the flatness standards required pre-coating as well as the surface figure properties after coating is applied.

Surface quality of the substrate (as in under-polishing, scratches, digs) is imperative prior to production. However, it is also known within the industry that flaws are enhanced after coatings are applied. Using the interferometer will only determine the flatness.

Why did you choose Äpre?

Äpre’s open communication made the purchase straightforward.

Äpre was able to install software quickly, efficiently, and within a price point that made sense. Äpre also made the logical experience a breeze.

Did you look at alternative optical metrology solutions?

This interferometer and software upgrade was a great fit for our needs, driven by our customer requirements.


”Watching Guernsey Coatings’ success is so rewarding. Their interferometry system and software aren’t just another tool – it’s a way they live out their company mission by adding more value.”
Robert Smythe, President, Äpre


What were installation and training like?

Äpre made the software installation easy and uncomplicated.

Although using the software was more of a learning curve, it was definitely not extensive. We’re very fortunate to have expert employees, some of whom have been with us for decades. They are cross-trained on our upgraded equipment making sure we keep projects going even when someone is on vacation.

What’s next for you and Guernsey?

With Äpre’s open communications and great rapport, we’ll continue to work together. I’ve been extremely happy at every point along the way.

It has been beneficial for us as well as our clients to have the interferometer added to our capabilities. When a client requires Guernsey to supply a substrate, we can now check the flatness of the glass, taking that responsibility off of the client. Any instrument that assists in providing an improved product is vital to the success of our client.

The field of thin film deposition is not without its’ challenges. Communication and transparency between ourselves as well as our clients is a foundation we strive to keep.


At ÄPRE we’re keeping our eyes on the horizon to boost your capabilities and profitability. Let us provide you with state-of-the-art systems to advance your process. Contact us today to get started.