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Transcript of optics FMM
the less dense object
(air) to the more dense
(water) the light slows
down and that is why it's
angle decreases Extra Optical Technology Ray Diagrams Law of Reflection Refraction Lenses Vision The 4 main properties of light: it travels in straight lines (1), it can be bent (2), it can be reflected (3), it is a form of energy (4). Near sightedness Far sightedness Near sightedness is when your lens focuses the light in front of the retina. It is normally corrected by convex eyeglasses or contacts. Far farsightedness is when your lens focuses the light behind your retina. It is normally corrected by concave eyeglasses or contacts. Aakash did the script Greg did the prezi Tyrell did the music yoo y'd u bite her and we miss u The law of reflection states that when light bounces off a flat surface, the angle it at which it hits the surface will be equal to the angle at which it bounces away. When light travels into a
less dense object, light
speeds up, increasing the
angle Light enters the eye through the pupil which is encircled by the iris which controls how much light enters the eye. The light then travels through the aqueous humor & enters the lens. The lens is what controls how the image focuses on the retina and is controlled by the cilliary muscle. From the lens the light travels through the vitreous humor (clear jelly like substance) & hits the retina were conesand rods convert the light into signals & sends it to the brain through the optic nerve. The area were the optic nerve protrudes in the eye and retina is also known as a blind spot. Harsh did the END CREDITS Telescopes Reflecting telescopes use curved mirrors instead of
convex lenses to collect and focus light. A large
concave mirror (the center is thinner than the edges)
collects and reflects the light to make an image.
Once the image forms, the lens in the eyepiece
magnifies the image. Reflecting telescopes are very
helpful for viewing dim or dark objects. Large
reflecting telescopes can see objects that are a
millionth or a billionth the brightness of the faintest
star that can be seen by the human eye alone! Plus yo mama http://library.thinkquest.org/J0112188/refracting_and_reflecting_telescopes.htm
google Camera Gun Scope
Read more: http://wiki.answers.com/Q/How_does_a_camera_lens_work#ixzz1x8YENSJx
A camera lens uses refraction to focus light on the film, or in a digital camera on the CCD, photoreceptor cell or other light-sensitive array. A rifle scope works by using optics to
magnify the target. These optical lenses are
sized in relation to the power of the scopes
magnification. http://answers.ask.com/Hobbies/Guns_and_Knives/how_does_a_rifle_scope_work wikianswers.com Ray Diagrams What makes a Ray Diagram? http://www.answers.com/topic/ray-diagram#ixzz1x8vcUcvz http://www.answers.com/topic/ray-diagram What makes a ray diagram a ray
diagram is a diagram that shows
the paths of selected rays through
an optical system. Light can be "bent" in a number of ways, (through Reflection and Refraction, although the light is merely angled, not truly bent or curved - (( it continues to move in straight lines)) within these processes). A refracting telescope works just like a magnifying
glass. It uses a convex glass lens (to bend light and
bring it into focus. This lens is thicker in the center
than it is toward its edges, which bends the light
more at the edge of the lens than light coming
through the center. This allows all of the light to
come together at a focus point. The point of focus
is where the image is created. Properties of
Light (1) (1) (2) (2) (3) (3) (4) (4) Binoculars work by using concave and convex lenses to gather light from a specific source. Binoculars use refracting lens to magnify the image being viewed by the human eye. Binoculars Binoculars are used to see further away objects. They make you see far distance objects more closely by magnifying the image.
Read more: http://wiki.answers.com/Q/What_are_binoculars_used_for#ixzz1xA8gU8Sk Information was also taken from: (1) The laser pointer is being shined at a wall to signify that light travels in a straight line (1). (2) The laser pointer is
being shined through a
glass of water to show
that "light can bend" (2) (3) The laser pointer is shined at a mirror to signify how light can be reflected(3) The Eye (4) A solar calculator
is powered by a lamp,
to signify that light is
a source of energy.(4) www.midlandeye.com/eye/facts.php http://answers.yahoo.com/question/index?qid=20090115170716AAGmufp Lens Camera