A refractive lens.
The correct spelling is spectroscope. A spectroscope is a scientific instrument that is used to measure properties of light waves. It is an optical device for producing and recording spectra to be examined.
Being a scientist I like to use light as light. But light is mainly photons.
the answer is light microscope. kitten97 is at your service
spectroscope
visible light
spectroscope
camera
The scientific finding that led to the invention of the first camera was that light could catalyze a chemical reaction.
Spectroscope
The iris of the camera allows more or less light to enter the camera.
A particle counter is a scientific instrument that detects and counts particles using light and imaging techniques. The particle counter is used in 3 main applications which are aerosol, liquid and solid.
When you click the camera the shutter behind the lens of the camera opens briefly and lets in the light on to the film. I am no specialist and this is what I learnt in school.
The medical instrument used to view inside the abdomen is called an endoscope. It is a thin, flexible tube with a light and camera attached to it that allows doctors to visualize the gastrointestinal tract and other organs in the abdomen.
It does both to a certain extent but its main purpose is to focus light.
The exposure is controlled by the camera's light meter
The correct spelling is spectroscope. A spectroscope is a scientific instrument that is used to measure properties of light waves. It is an optical device for producing and recording spectra to be examined.
In essence the body of the eye is a camera. Eyes have lenses that focus and direct incoming light, and concave plane at the back that are dense with light receptor cells, analogous to film. The light receptors collect information and send it to the brain for processing as a visual experience.