tell me the answer
Lens
It does both to a certain extent but its main purpose is to focus light.
Focus light onto the film
The lens redirects light onto the sensor until the camera thinks it's in focus.
A camera uses lenses to focus light rays and record an image of an object on photographic film.
The lens of the camera is responsible for focusing incoming light rays onto the camera sensor. The lens can be adjusted to control the focus and sharpness of the image being captured.
The key features of the Lytro Light Field Infinite Focus Digital Camera include the ability to refocus photos after they are taken, capturing light in multiple directions for a more immersive image, and a compact design. The benefits of this camera are the unique and creative photos it produces, the ability to adjust focus later, and its ease of use.
The lens redirects light onto the film until the camera thinks it's in focus.
Your camera may be taking blurry pictures due to several reasons, such as a dirty lens, low light conditions, camera shake, or incorrect focus settings. Try cleaning the lens, using a tripod, adjusting the focus, or increasing the light to improve picture quality.
A camera primarily uses refraction to focus light onto the sensor/film. Lenses in the camera refract light to create a sharp image, adjusting focus by changing the distance between the lens elements. Reflection may occur within the camera, such as off mirrors or other internal components, but it is not the primary mechanism for forming the image.
A camera relies on both reflection and refraction to capture images. The lens of the camera refracts light to focus it onto the image sensor, creating a clear image. The mirror inside the camera reflects light to direct it towards the viewfinder or the image sensor.
The lens performs two main functions; it controls how much light enters the camera by changing the aperture. The aperture is a variable sized "hole". With a smaller aperture, less light enters the camera and also more of the image will be focus. The other major function is to bring objects into sharp focus onto the focal plane of the camera (where the sensor or film is).