Differences

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--- intro_optical_sensor [2026/02/04 17:45] – [Manufacturing] louise
+++ intro_optical_sensor [2026/03/16 13:23] (current) – louise
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 ## System Definition - Goal and scope
 ### Definition
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 #### What is it used for?
-They are used in phones, cars, laptops, tablets, industrial/medical systems, security cameras, etc.
+They are used in phones, cars, laptops, tablets, industrial/medical systems, security cameras, cars and other vehicles, etc.
 #### Are there different types/technologies?
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 * Charge-coupled device (CCD)
 * Active-pixel sensor (CMOS sensor) -> cheaper, low electricity consumption. They are more used in modern cameras.
+* IR sensor (for night vision)
 CDDs' characteristics:
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 * Cover glass
 * Contact pads
+Sources :
+* [Blog post - Thinklucid](https://thinklucid.com/tech-briefs/understanding-digital-image-sensors/)
+* [Blog post - Ansys](https://www.ansys.com/simulation-topics/what-is-cmos-image-sensor)
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 TBC
 ### What are the known hotspots? Which raw material? Which life stage?
-TBC
+* CCD / CMOS
+* Mono / color sensor
+* Resolution → sensor size
+* Pixel size → sensor size
 ### What are the potential parameters affecting environmental impacts?
 TBC