Refraction
Diffraction.
It is called "transparent".
The passage of light through an object is called transmission. This process occurs when light passes through a material without being absorbed or reflected.
You will see what some people call a rainbow, the differing refraction of light frequencies
Quite simply, the ability to see through some objects is (usually) the result of the object being what one would call transparent. Light passes through it with little or no attenuation or distortion. A sheet of window glass is just such an object. Light passes directly (pretty much) through it and we see what is on the other side with no difficulty. A brick wall, by contrast, blocks light that is radiated or reflected onto it. A viewer on the other side cannot see "through" it because any light falling on the wall is prevented from passing through to a viewer on the other side.
The bending of light as it passes through a slit in cardboard is called diffraction. This phenomenon occurs when light waves encounter an obstacle or aperture, causing them to spread out and interfere with each other. Diffraction is a property of waves and occurs due to the wave nature of light.
Nothing comes through. A red light emits no blue light, and a blue filter allows only blue light to pass ... that's why when you look at it, you say to yourself "Hey! That filter looks blue. I'll call it a 'blue filter'."
When sunlight passes through raindrops, the drops scatter the light which then appears to the onlooker to form a band of colors in the sky - or as we call it, a rainbow.
diameter
The clear jelly that light passes through to reach the retina is called the vitreous humor. This gel-like substance fills the space between the lens and the retina in the eye, helping to maintain its shape and providing a pathway for light. The vitreous humor is mostly composed of water, collagen, and hyaluronic acid.
The major segment.
Materials that allow all light to penetrate through them are called transparent materials. This means that light passes through them easily without being absorbed or scattered. Some examples of transparent materials include glass, clear plastic, and water.