eye and camera Flashcards
eye lid
opens to let light in or let light out, protects cornea
shutter
retina
receives light and creates an image from light
digital image
cornea
clear covering of the eye, focusing entry of light into the eye
protective glass
iris
helps regulate the amount of light entering the eye (pupil)
automatic brightness adjustment
eye lens
focuses the image on the retina
camera lens
ciliary muscle
controls the eyes accommodations for viewing objects at varying distances
focusing ring
pupil
amount of light entering the eye
apertune
optic nerve
transmit signals from light receptors in the retina to the brain
aqueas humour
fluid between the iris and the cornea, keeps the eyeball rigid and refracts light
vitrius humour
helps support the same part of the eye, and transmit light to the retina
shutter
opens to take a photo
eye lid
digital image
catches the image
retina
automatic brightness adjustment
opens and closes the diaphragm according to brightness of the subject
iris
camera lens
to gather and focus the light reflected from a scene
eye lens
focusing ring
moves the lens elements inside the lens
ciliary muscle
apertune
hole through which light enters the camera
pupil
how does your eye form an image
Light enters the eye through the transparent cornea, passes through the aqueous humor, the lens, and the vitreous humor, where it finally forms an image on the retina
what is accommodation
the ability of the eye to change its focus from distant to near objects (and vice versa).
what is a blind spot
the point of entry of the optic nerve on the retina, insensitive to light
