Studied by 4 people
What is light?
a form of energy
what is the difference between light absorption, light transmission, and light reflection?
light absorption is when the leight gets absorbs in an object, light transmission when light goes through an object, and light reflection when light bounces of a smooth shiney surface
What is the law of reflection?
Angle of inc.= Angle of ref.
How does light behave when it strikes a concave mirror? A convex mirror?
Concave makes it converge. Convex makes it diverge
How does light behave when it strikes a concave lens? A convex lens?
convex makes it converge concave makes it diverge
Human Eye vs. Camera
Lens=lens iris= diaphragm pupil=aperture retina=film or digital sensor
Myopia vs. Hyperopia
Myopia is where you can see close but not far hyperopia is where you can see far but not near
Virtuous Humour
gel-like substance that fills the space between the lens and the retina within the eye
Lens
A clear structure behind the pupil that refracts and focuses light.
Cone Cells
Allow us to detect colour
Rod Cells
Allow us to detect shapes and movement especially in low light conditions
Aqueous Humour
nourishes the lens and maintains pressure within the eye
Optic Nerve
Nerve that transmits electrical signals from the eye to brain. Where blind spot is.
Retina
Tissue at back of the eye where image is formed
Sclera
An opaque tissue that surrounds the cornea and helps maintain the shape of the eye. White region around eye.
Ciliary Muscle
Controls the shape of the lens.
iris
Colored muscle surrounding pupil. Controls the size of pupil.
Pupil
The opening of the eye where light enters.
Cornea
Transparent tissue that covers the iris and pupil. Majority of focusing happens here.
What types of lenses can be used to correct hyperopia? Myopia?
Myopia concave
Hyper convex
What are some vision enhancing technologies?
Glasses,Lazer eye surgery ect.
Note
Flashcard