28021637
Beschreibung
Mindmap von Jonald Ferrer, aktualisiert more than 1 year ago
|
Erstellt von Jonald Ferrer
vor fast 4 Jahre
|
|
Light and Optical Systems
- History of Light
- Newton used the failure of the wave theory to prove that light is made of particles. Newton concluded
that light is composed of colored particles that combine to appear white
- Pythagoras believed beams of light were made of tiny particles and the eyes detected these particles and
allowed us to see.
- Euclid states that light travels in straight lines and reflects from a surface at the same angle at which it hit it.
- Al -Haytham wasthe first to explain that vision occurs when light reflects from an object and then passes to one's
eyes.[27] He was also the first to demonstrate that vision occurs in the brain, rather than in the eyes
- Albert Michelson was known for measuring the speed of light and especially for the Michelson–Morley experiment.
- Newton used the failure of the wave theory to prove that light is made of particles. Newton concluded
that light is composed of colored particles that combine to appear white
- Sources of Light
- Sun
- Fire
- Torch
- candle
- star
- Sun
- Optical Devices
- Telescopes
- refractor
- use lenses to focus light
- Hans Lippershey made the 1st refracting telescope in 1608
- Hans Lippershey made the 1st refracting telescope in 1608
- use lenses to focus light
- reflaction
- uses mirrors to focus light
- Newton made the 1st working reflector telescope in 1668
- Newton made the 1st working reflector telescope in 1668
- uses mirrors to focus light
- refractor
- periscopes
- microscopes
- infrared cameras
- contact lenses
- eye glasses
- Telescopes
- What is Light
- The form of energy that we can see
- Properties of Light
- Rectilinear Propagation
- Light Reflects
- Light refracts or bends when it travels from one material to another because it changes speed slightly
- Light disperses into all the colors that make up WHITE light (red, orange, yellow, green, blue, indigo
and violet) when it passes through a prism because each color is a different wavelength and is bent a
different amount
- Light travels through a vacuum (that is, light does NOT require particles of matter to travel) which is
why we see light from faraway stars even through empty space
- Light travels through objects to different degrees (e.g. a window pane vs a frosted window pane vs a
wooden door)
- Light travels through objects to different degrees (e.g. a window pane vs a frosted window pane vs a
wooden door)
- Light travels through a vacuum (that is, light does NOT require particles of matter to travel) which is
why we see light from faraway stars even through empty space
- Light disperses into all the colors that make up WHITE light (red, orange, yellow, green, blue, indigo
and violet) when it passes through a prism because each color is a different wavelength and is bent a
different amount
- Light refracts or bends when it travels from one material to another because it changes speed slightly
- Light Reflects
- Rectilinear Propagation
- The form of energy that we can see
- Transmission of Light
- Opaque
- Transparrent
- Translucent
- Ray diagrams and Shadows
- Opaque
- Laws of Refection
- Ray model of light
- Plane mirror
- Convex and Concave
- Ray model of light
- Refraction of Light through different materials
- Glass and Water
- Double Convex Lens, Double Concave Lens
- Electromagnetic Spectrum (Radio Waves, Microwaves, Infrared Light, Visible Light (ROYGBIV),
Ultraviolet Light, X-Rays, Gamma Rays)
- Electromagnetic Spectrum (Radio Waves, Microwaves, Infrared Light, Visible Light (ROYGBIV),
Ultraviolet Light, X-Rays, Gamma Rays)
- Double Convex Lens, Double Concave Lens
- Glass and Water
- Human Eye (Anatomy and function) compared to a Traditional Camera (Anatomy and Function)
- There are many similarities between the human eye and a camera, including: a diaphragm to control the
amount of light that gets through to the lens. This is the shutter in a camera, and the pupil, at the
center of the iris, in the human eye. a lens to focus the light and create an image. The image is real and
inverted. a method of sensing the image. In a camera, film is used to record the image; in the eye, the
image is focused on the retina, and a system of rods and cones is the front end of an image-processing
system that converts the image to electrical impulses and sends the information along the optic nerve
to the brain.
- Diiferences of Human Eye and Camera
- Human Eye
- Lens Focus: the lens changes shape to focus: The muscles in your eyes change the actual shape of the lens inside
your eyes.
- Sensitivity to light: The human retina is not unifornml sensitive to light.
- the human eye is a subjective device. This means that your eyes work in harmony with your brain to
create the images you perceive: Your eyes are adjusting the focus (by bending the light through the lens
in your eyeballs) and translating photons (light) into an electrical impulse your brain can process.
- the human eye is a subjective device. This means that your eyes work in harmony with your brain to
create the images you perceive: Your eyes are adjusting the focus (by bending the light through the lens
in your eyeballs) and translating photons (light) into an electrical impulse your brain can process.
- Sensitivity to light: The human retina is not unifornml sensitive to light.
- Lens Focus: the lens changes shape to focus: The muscles in your eyes change the actual shape of the lens inside
your eyes.
- Camera
- Lens focus: In camera, the lens moves closer/further from the film to focus.
- Sensitivity to light: A film in a camera is uniformly sensitive to light.
- A camera, on the other hand, is an absolute measurement device — It is measuring the light that hits a
series of sensor, but the sensor is ‘dumb’, and the signals recorded need to be adjusted to suit the color
temperature of the light illuminating the scene
- A camera, on the other hand, is an absolute measurement device — It is measuring the light that hits a
series of sensor, but the sensor is ‘dumb’, and the signals recorded need to be adjusted to suit the color
temperature of the light illuminating the scene
- Sensitivity to light: A film in a camera is uniformly sensitive to light.
- Lens focus: In camera, the lens moves closer/further from the film to focus.
- Human Eye
- Diiferences of Human Eye and Camera
- Similarities Human Eye and Camera
- There are many similarities between the human eye and a camera, including: a diaphragm to control the
amount of light that gets through to the lens. This is the shutter in a camera, and the pupil, at the
center of the iris, in the human eye. a lens to focus the light and create an image. The image is real and
inverted. a method of sensing the image. In a camera, film is used to record the image; in the eye, the
image is focused on the retina, and a system of rods and cones is the front end of an image-processing
system that converts the image to electrical impulses and sends the information along the optic nerve
to the brain.
Möchten Sie kostenlos Ihre eigenen Mindmaps mit GoConqr erstellen? Mehr erfahren.