Today’s Do Now: Draw this. (Don’t put in the veins) Name as many parts

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Presentation transcript:

Today’s Do Now: Draw this. (Don’t put in the veins) Name as many parts Side view of the Eye Today’s Do Now: Draw this. (Don’t put in the veins) Name as many parts on this diagram as you can!

Do Now (Warm-up): On the paper provided, answer the two questions below in a full sentence please for full credit (2 points each question) 1) How do you think a camera like an eye? 2) How is a camera and an eye not alike?

Iris Optic Nerve Pupil Iris Lens Retna Side view of the Eye pupil cornia Iris Lens Retna

label a thing that shuts the eye Side view of the Eye What closes the eye? Iris Optic Nerve Pupil Iris pupil cornia Iris Lens Retna label a thing that shuts the eye

Notes: A known truth: The Path of Light is always straight Notes: A known truth: The Path of Light is always straight. A known truth: Objects reflect light. Since matter reflects light in all directions, Since Light travels in a straight line, Draw a dotted line from the TOP of the figure into the opening of the eye and through to the back of the eye where the light beam will have to stop.

Draw Path of Light through the opening of the “eye” Now Draw a dotted line from the BOTTOM of the figure into the opening of the eye and through to the back of the eye where the light beam will have to stop.

Draw Path of Light through the opening of the “eye” Draw this: What do you NOTICE about how the image ends up on the inside the back wall of the eye? Write this down: __________________________________________________________________________________________________.

Copy these NOTES onto your Drawing page: Truth: All objects appear upside down when reflected through an APERTURE. An Aperture is a small opening.

ap·er·ture Read the definition: ˈnoun technical an opening, hole, or gap. "the bell ropes passed through apertures in the ceiling" a space through which light passes in an optical or photographic instrument, especially the variable opening by which light enters a camera.

Pin hole camera Proven Truth: Light travels in a straight line

Draw a representation of a Pin hole camera with and opening, an object, path of light

Do now: if this is a pinhole camera, WHAT COULD KEEP THE PICTURE FROM GOING AWAY????

Draw a sensitive piece of paper to capture the light on the back of the box (like the retina)

Draw a light-sensitive piece of paper to capture the light on the back of the box (like the retina)