IMAGE SENSOR TECHNOLOGY UPDATE CMOS Sensor Technology

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IMAGE SENSOR TECHNOLOGY UPDATE CMOS Sensor Technology

Transcript Of IMAGE SENSOR TECHNOLOGY UPDATE CMOS Sensor Technology

IMAGE SENSOR TECHNOLOGY UPDATE
CMOS Sensor Technology
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What is next in CMOS Sensor Technology?
• On-Sensor Polarization • Curved CMOS Sensors • Stacked CMOS Sensors • QuantumFilmTM • Organic Photoconductive Film sensors • 3rd Generation Sony Pregius

Proprietary - Company Confidential ©2018 FLIR Systems Inc. Information and equipment described herein may require US Government

authorization for export purposes. Diversion contrary to US law is prohibited.

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What is next in CMOS Sensor Technology?
• On-Sensor Polarization • Curved CMOS Sensors • Stacked CMOS Sensors • QuantumFilmTM • Organic Photoconductive Film sensors • 3rd Generation Sony Pregius

Proprietary - Company Confidential ©2018 FLIR Systems Inc. Information and equipment described herein may require US Government

authorization for export purposes. Diversion contrary to US law is prohibited.

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Polarization of Light
• Light is an electromagnetic wave with oscillating electric and magnetic fields. • Unpolarized light : light waves whose electric field vectors are randomly oriented w.r.t the direction of propagation • Polarized light : light waves whose electric field vectors are restricted to a single plane w.r.t the direction of
propagation • Most light sources emit unpolarized light

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authorization for export purposes. Diversion contrary to US law is prohibited.

4

Polarization in Nature - Navigating
• Bees use the sun to navigate • Sensing polarized light enables bees to sense the position of the sun on cloudy days

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authorization for export purposes. Diversion contrary to US law is prohibited.

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Light can be polarized by reflection
• Reflection is one way of polarizing light waves • The magnitude of this effect depends on the material and angle of incidence of light • Metals reflect the polarization of the light falling on them and hence there is minimal polarization. • Non-metallic materials tend to reflect most vibrations on a single plane parallel to the plane of incidence.

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authorization for export purposes. Diversion contrary to US law is prohibited.

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Polarization in Nature - Hunting
• Predators use polarized light in different ways to help them hunt • Cuttlefish and mantis shrimps are sensitive to polarized light which helps them hunt silvery fish • Diving birds’ eyes block polarized light reflecting off water, enabling them to see below surface of the water more clearly

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authorization for export purposes. Diversion contrary to US law is prohibited.

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Polarization in Nature - Hiding
• Some fish have evolved scales capable of reflecting unpolarized light helping them avoid detection by predators using polarized light

Simulation from Cummings Lab

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authorization for export purposes. Diversion contrary to US law is prohibited.

8

Light can be polarized with filters
• Polarizing filters pass light which is aligned with their angle of polarization • Polarizing filters block light which is not aligned with their angle of polarization

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authorization for export purposes. Diversion contrary to US law is prohibited.

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Common applications of polarized light
• Sunglasses are common use of polarizing filters • Their polarizers are aligned to block polarized light reflecting off horizontal surfaces • Passing or blocking different angles requires the filters to be rotated

Proprietary - Company Confidential ©2018 FLIR Systems Inc. Information and equipment described herein may require US Government

authorization for export purposes. Diversion contrary to US law is prohibited.

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