* Solar Cells: Solar cells are devices that convert light energy into electrical energy. They work by using the photoelectric effect to generate electrons when light strikes a semiconductor material.
* Photomultipliers: Photomultipliers are highly sensitive detectors that amplify weak light signals. They work by using the photoelectric effect to generate electrons, which are then amplified through a series of dynodes.
* Image Sensors in Digital Cameras and Smartphones: The image sensors in these devices use the photoelectric effect to convert light into electrical signals, which are then processed to create an image.
* Light Meters: These devices use the photoelectric effect to measure the intensity of light.
Therefore, all of the above technologies rely on the photoelectric effect.