Optical choppers with rotating wheels are some of the most used macroscopic optomechatronic devices for the controlled modulation. attenuation or obscuration of light in a wide area of applications. We discuss and compare the modulation functions produced by two types of chopper wheels: the classical device. with windows with linear edges. https://wholelatteslovers.shop/product-category/coffee-maker-built-in-grinder-glass-carafe/