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The Real ROI of Custom Optics in Instrument Design | Melles Griot Advantage (Part 2)

Jul 7, 2026 by IDEX Health & Science

Fluorescence Microscope Development Phases

There is a common misconception in instrument development: that custom always means expensive. For many engineers, this leads to sticker shock when they see a custom quote, causing them to default to off-the-shelf (OTS) components.

However, the cost delta between custom and off-the-shelf is often a myth when you look at the efficiencies gained across the entire Development Pathway from IDEX Health & Science. 


ROI Through the Development Pathway

When you build hundreds of instruments a year, the financial landscape changes dramatically. Custom optics don't just solve price problems; they eliminate hidden costs at every stage of development:

  • Design & Need: OTS parts are designed to be general, meaning you often pay for features you don't need or spend engineering hours adapting your sample to fit a lens that wasn't meant for it. Custom solutions dial in performance only where it matters for your ROI.
  • Tolerancing & Assembly: Custom systems are toleranced specifically for your application, ensuring specifications are met on every system. Additionally, custom optics can be engineered to allow for relaxed alignment tolerances. This slashes the labor time required during your internal manufacturing process.
  • Test & Integration: Because custom optics are designed specifically for your sensor, they provide high performance over the entire field of view. OTS lenses often suffer from image degradation at the edges, leading to wasted pixels and lower throughput. More data per snapshot means fewer snapshots total, lowering the long-term operational cost of your instrument.


Scalable Value

As David Steinchen, Director of Systems Imaging RD&E, emphasizes: “Don't let the custom label scare you.” If you are building 20 units, stick with OTS. But if you are building a product for volume, the Development Pathway isn't an added expense—it's a cost-saving tool. The real ROI of collaboration is found in a system designed for your exact requirements, delivering better performance and a more viable business case.


Conclusion: The Value of Vertical Integration

The cost of an optical system isn't just the price of the parts—it’s the cost of alignment, the cost of wasted sensor space, and the cost of engineering workarounds. When you partner with us for a custom solution, you are investing in a streamlined path to market.

Our Melles Griot Optical System Capabilities allow us to leverage high-volume manufacturing efficiencies that most boutique design firms can’t match. By managing final system integration under one roof, we eliminate the "margin-on-margin" costs associated with juggling multiple vendors.

Don't let the fear of custom limit your instrument's potential. Whether you are optimizing for footprint, throughput, or long-term unit cost, our team is ready to show you how an integrated optical system provides the ultimate return on investment.


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New to the series? Start here:

Part 1: How to Design a Fluorescence Microscope System

 

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