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grade 8science > eye and camera > Flashcards

eye and camera Flashcards

1
Q

eye lid

A

opens to let light in or let light out, protects cornea

shutter

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2
Q

retina

A

receives light and creates an image from light

digital image

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3
Q

cornea

A

clear covering of the eye, focusing entry of light into the eye
protective glass

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4
Q

iris

A

helps regulate the amount of light entering the eye (pupil)

automatic brightness adjustment

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5
Q

eye lens

A

focuses the image on the retina

camera lens

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6
Q

ciliary muscle

A

controls the eyes accommodations for viewing objects at varying distances
focusing ring

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7
Q

pupil

A

amount of light entering the eye

apertune

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8
Q

optic nerve

A

transmit signals from light receptors in the retina to the brain

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9
Q

aqueas humour

A

fluid between the iris and the cornea, keeps the eyeball rigid and refracts light

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10
Q

vitrius humour

A

helps support the same part of the eye, and transmit light to the retina

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11
Q

shutter

A

opens to take a photo

eye lid

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12
Q

digital image

A

catches the image

retina

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13
Q

automatic brightness adjustment

A

opens and closes the diaphragm according to brightness of the subject
iris

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14
Q

camera lens

A

to gather and focus the light reflected from a scene

eye lens

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15
Q

focusing ring

A

moves the lens elements inside the lens

ciliary muscle

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16
Q

apertune

A

hole through which light enters the camera

pupil

17
Q

how does your eye form an image

A

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

18
Q

what is accommodation

A

the ability of the eye to change its focus from distant to near objects (and vice versa).

19
Q

what is a blind spot

A

the point of entry of the optic nerve on the retina, insensitive to light

grade 8science (6 decks)

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