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| intro_optical_sensor [2026/05/26 10:40] – [Definition] mathieu.ludden.ext | intro_optical_sensor [2026/05/27 13:41] (current) – [Definition] antoine | ||
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| **Image sensors** | **Image sensors** | ||
| - | An image sensors convert light into electronic signals. The two most common types of image sensor are the charge-coupled device (CCD) and the active pixel sensor (CMOS). | + | An image sensors convert light into electronic signals. The two most common types of image sensor are the charge-coupled device (CCD) and the active pixel sensor ([[intro_cmos|CMOS]]). |
| - | CMOS sensors use pixel-level transistors to enable faster, more energy-efficient processing, while CCD sensors transfer charge across the chip to deliver superior image quality, but at the cost of slower speed and higher power consumption. | + | [[intro_cmos|CMOS]] sensors use pixel-level transistors to enable faster, more energy-efficient processing, while CCD sensors transfer charge across the chip to deliver superior image quality, but at the cost of slower speed and higher power consumption. |
| - | CMOS sensors are widely used in the consumer electronics sector. They are particularly used in mobile devices such as smartphones, | + | [[intro_cmos|CMOS]] sensors are widely used in the consumer electronics sector. They are particularly used in mobile devices such as smartphones, |
| **Photoelectric sensors** | **Photoelectric sensors** | ||
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| #### If different types, what are the differences in terms of materials, process, use consumption? | #### If different types, what are the differences in terms of materials, process, use consumption? | ||
| - | //Question à poser plutôt dans la page wiki d'une famille de capteur optique ex: Image sensors ==> Difference entre CMOS/ | + | //Question à poser plutôt dans la page wiki d'une famille de capteur optique ex: Image sensors ==> Difference entre [[intro_cmos|CMOS]]/ |
| #### Is there a generic component that represents a family of components? | #### Is there a generic component that represents a family of components? | ||
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| {{ : | {{ : | ||
| - | POurquoi CMOS et pas CCD ? | + | POurquoi |
| #### How many sub-parts does the system consist of? | #### How many sub-parts does the system consist of? | ||
| - | The main parts of a CMOS image sensor are the following: | + | The main parts of a [[intro_cmos|CMOS]] image sensor are the following: |
| * Sensor chip (wafer, node = 40-180nm): An array of photosensitive pixels, with Bayer pattern | * Sensor chip (wafer, node = 40-180nm): An array of photosensitive pixels, with Bayer pattern | ||