Micro Optics


The demand for high-quality micro-optics is rising and becoming more complex as industries continually discover new uses for miniature optical devices. To meet this demand, the Gray Optics’ engineering team continually designs and sources micro-optics products that OEMs need most. Our advanced miniaturization and assembly techniques, for sub-millimeter-sized lenses, prisms, and other micro-optics contribute to […]

What Is the Image Sensor Chief Ray Angle Spec?

Endoscopes offer a minimally invasive or non-invasive method of observing areas of the human body that would typically be inaccessible without invasive surgery. The high-resolution images from the endoscope provide an exceptional visual interpretation of internal anatomy accessible from orifices naturally present in the human body or through incisions. Medical and industrial applications in optics, […]

Tom McDonald

Meet Tom McDonald, Principal Mechanical Engineer

Today, we are speaking with Tom McDonald, one of the people you may work with directly as a client of Gray Optics. What is your current role at Gray Optics? As the Principal Mechanical Engineer, I’m responsible for taking the optical designs and designing a system of mechanical constraints based on the specific tolerances laid […]

Ted McHenry

Talking with Ted McHenry, Engineering Process Leader

In this interview, we spoke to Ted McHenry, one of the initial team members of the Gray Optics team and one of the anchor points of the growing group. As the Mechanical Engineering Manager and Process Leader, he brings 16+ years of experience to our team. With his diverse knowledge in mechanical design for rapid […]


Resolution and MTF Testing

In the past, when sensors only offered at most 640 pixels, it was easy to make an imaging lens that could outperform the camera’s sensor. Today, with pixel sizes less than 1 micron,  pixel count on sensors have significantly increased —sensors now regularly have over six million pixels. To keep up with this technological advancement […]

additive manufacturing

Complex Optics Prototypes Created With Additive Manufacturing From Gray Optics

Portland, ME, July 8, 2022 – Gray Optics’ Additive Manufacturing experience combines component and optical design expertise with high-power additive laser metal manufacturing. Applications for these highly complex parts include dental implants to industrial parts, which are too difficult for lathe or millwork, and now are made with a metal powder bed fusion system. Melt […]

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Eric Storm

Meet Eric Storm, Principle Assembly Technician

Eric Storm, our Principle Assembly Technician, has been with us since early 2019. He’s personally worked through most of our customer’s challenges to solve fixturing and alignment problems with those tricky < 2mm optical assemblies required in robotic surgical units.  How Eric Became a Gray Optics Team Member Dan Gray and Ted McHenry were lucky […]

What Does an Optical Engineer Do?

In physics, optics is the study of light, a broad field of research and engineering that includes aspects like rays, waves, and photons. Although the term “optics” is often associated with sight, optical engineers focus more on the behavior, properties, and creation of light. Here we’ll go into more detail about what optical engineers do […]

What Are Endoscopic Cameras?

One of the most applied imaging methods in medicine is endoscopy, and endoscopic cameras are one of the most technical demanding devices. These systems allow medical practitioners to examine and inspect the interior of bodily organs, joints, or cavities for diagnosis and treatment purposes. At Gray Optics, we specialize in solving complex optical, mechanical, and […]