pho·​to·​di·​ode | \ ˌfō-tō-ˈdī-ˌōd How to pronounce photodiode (audio) \

Definition of photodiode

: a photoelectric semiconductor device for detecting and often measuring radiant energy (such as light)

Examples of photodiode in a Sentence

Recent Examples on the Web The Ben Gurion team found that using a photodiode was more effective and efficient than a camera, allowing easier long-range listening with a new range of objects and offering real-time results. Andy Greenberg, Wired, 22 Feb. 2022 The Front Deep Trench Isolation (FDTI) allows each photodiode to absorb and hold more light information. Chris Smith, BGR, 2 Sep. 2021 Light sensors use a device known as a photodiode to turn light into an electrical current. Nicole Mcfarlane, The Conversation, 7 Dec. 2020 When the robot finger touches an object, its soft exterior deforms, and the photodiodes in the skeleton detect changing light levels from the LEDs. Matt Simon, Wired, 26 Feb. 2020 His team is now working to shrink the photodiodes—creating finer pixels and sharper vision—without losing too much signal strength. Kelly Servick, Science | AAAS, 31 Oct. 2019 The photodiode signal controls the brightness of a second light source. Chris Lee, Ars Technica, 4 Sep. 2018 The photon that bounced off the object would hit a photodiode (essentially a single pixel detector). Chris Lee, Ars Technica, 4 Sep. 2018 Star gazing 1922: Professor Joel Stebbins attaches what is called a photodiode to the Washburn Observatory’s 15-inch telescope to measure and track stars. Mark Johnson, Milwaukee Journal Sentinel, 12 July 2018 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photodiode.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of photodiode

1945, in the meaning defined above

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The first known use of photodiode was in 1945

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Cite this Entry

“Photodiode.” Dictionary, Merriam-Webster, Accessed 22 May. 2022.

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