one day on earth interactive lesson #3

Lesson 3: History of Moving Images


Sight and the camera The individual parts of the eye work in a manner similar to a camera.

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The cornea

acts like the lens in a camera.

... helping to focus light to the back of the eye.


The iris and pupil act

like the aperture of a camera.


If you are outside at night,

the iris opens and gets bigger to let in

more light so you can see in the dark.


If you are outside in the bright sun,

the iris in your eye constricts and gets

smaller to let in less light.


The very back of the eye is lined with a layer

called the retina which acts very much

dddddd like the image sensor in a ddddddddddddddddddddddddddddcamera.


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1850

a camera obscura is an

optical device that projects an image of its surroundings on a screen.

Light from outside passes through the hole and strikes a surface inside where the outside scene is reproduced upside-down, but with color and perspective preserved.


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a pinhole camera is a camera that

does not have a lens.

In place of a lens is a single small hole on one side. Light from outside of the camera passes through the hole and projects an upside down image on the far side of the box, across from the hole.


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traditional film camera

A still camera is a type of camera used to take photographs. Traditional still cameras capture light onto photographic film.


How do images move?

• persistence of vision

• zoetropes

• beta movement

• animation through flip books


what is persistence

of vision?Persistence of vision is a commonly accepted, although somewhat controversial theory, which states that the human eye always retains images for a fraction of a second (around 0.04 seconds).


This means that everything we see is a subtle blend of what is happening now and what happened a fraction of a second ago.


what is beta movement?

Beta Movement is a perceptual illusion whereby two or more still images are combined by the brain into surmised motion.


what is

Max Wertheimer’s Experiment:


what is

Max Wertheimer’s Experiment:

Watch:Lesson 3: History of Moving Images

What just happened?


What just happened?Did it look like the ball moved to the right?


What just happened?did it look like the ball moved to the right?This did not actually happen, but the cognitive process of perception links the two images in time and causality.


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First record of a zoetrope in China


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What is a

?


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What is a

?

A zoetrope is a device that produces an illusion of motion in an image through a succession of static pictures. !The word is from the greek language with “zoe” meaning "life" and “trope” meaning "turn", translating loosely as "wheel of life".


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What is a

?

A zoetrope is made up of a spinning cylinder with vertical slits on the sides. Below these slits are individual images, or sequences of drawings or photographs.


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What is a

?

The viewer spins the cylinder and looks through the vertical openings at the pictures on the opposite side.


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What is a

?

The viewer spins the cylinder and looks through the vertical openings at the pictures on the opposite side.

Proceed Rapidly

through the following

slides


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What is a

?


1850

1900

motion picture camera

1895

...takes a sequence of images that also gives the illusion of motion when viewed in rapid succession.

Like a zoetrope, a


1950

1960

1951

video camera

A video camera utilizes an electronic sensor to capture images.


1990

2000

!A digital camera is a camera that records images through the electronic sensor which encodes an image digitally and stores it for later use or reproduction. Digital cameras can often take video, stills, or both.

digital camera19

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Activity:

make a flip book Lesson 3: History of Moving Images

one day on earth interactive lesson #3

Education

history of moving imageslesson

individual images

adfirst record of alesson

ip books lesson

type of camera

camera that18

apinhole camera

outside passes