Waves, Light & Sound Light & Color Recap, Wrap-Up & movin’ on.

Slides:

Advertisements

Similar presentations

Chapter 10 Light.

Advertisements

Monday, December 15, 2008 Record homework. Unpack. Get response pad. Permission slips on the stool. Agenda Agenda:  Quiz on 16.3 & 16.4  Completion of.

Visible Light and Color

The Eye and Sight Contrast ways in which light rays are bend by concave and convex lenses. Describe how a prism forms a visible spectrum Explain why different.

How can we use lenses to correct vision?. If the image is turned upside down too soon, what lens would we use? What if the image was turned upside down.

How Do Your Eyes Help You See?

Light 3-3 Illuminated- object that can be seen because it reflects light Luminous- object that gives off its own light Common types of lights: IncandescentFluorescentNeon.

18.4 Seeing Light Pg

VISION the sense we rely on most often. Photoreceptors in the eye are sensitive to wavelengths of light energy called the visible spectrum.

Human Eye  A human eyeball is like a simple camera! Sclera: White part of the eye, outer walls, hard, like a light-tight box. Cornea and crystalline lens.

Light Waves Sec 1.

Cornea- The clear covering at the front of the eye that lets light rays into the eye.

1 Light. 2 Visible Light Wavelengths range from 400 nm to 700 nm Longest wavelength = red Shortest wavelength = violet 1 nm = 1 x m.

Senses & Sensory Relationships –All of our senses respond to stimuli in the environment/ –________________________________________ –________________________________________.

The Eye and Sight Describe the relationship between the structure of the eye and sight Contrast ways in which light rays are bent by concave and convex.

UNIT EIGHT: Waves Chapter 24 Waves and Sound Chapter 25 Light and Optics.

What title would you give to each droodle?. Almost bald man with a split-end.

Chapter 3 Anatomy of the Eye. Sclera  The white part of the eyeball is called the sclera (say: sklair- uh). The sclera is made of a tough material.

The Eyes and Vision. I. Anatomy of the Eye The eye consists of 3 layers or tunics Fibrous tunic- The eye consists of 3 layers or tunics Fibrous tunic-

Quiz 4 – Vision and Colors 1. Most refraction in the eye occurs at the a) cornea b) fovea c) lens d) pupil.

The Human Eye. In many ways, the human eye is similar to a camera. Light enters through an opening, is focused through a lens, passes through a light-tight.

Chapter 2 Section 4 Seeing Light.

Light & Color What happens to the light that strikes an object? What determines the color of opaque, transparent & translucent object? How is mixing pigments.

Light and color.

Color and Vision General Physics. Band of Visible Light ROYGBIV (Red, Orange, Yellow, Green, Blue, Indigo, Violet)

Reflection and color, Refraction, Lenses and Prisms 15-3 and 4.

Jeopardy $100 Parts of the Eye Camera & Eye Visual Disorders Colour Vision Functions $200 $300 $400 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100 $500.

The Eye. The Human Eye The human eye is the optical instrument that helps most of us learn about the external world.

IPC Notes Light & Color. The colors of light that we see are the colors of light that an object reflects towards our eyes. ex) blue jeans absorb all colors.

Waves, Light & Sound Light & Color Recap, Wrap-Up & movin’ on.

Colors of Pigment The primary colors of pigment are magenta, cyan, and yellow. [

Chapter 12 Review Light and Vision. Category: The Eye Give the name and function of the eye part indicated by #3 (the thin layer between #1 and #2). Choroid.

The Eye and Sight Chapter 12. Vision begins when light rays are reflected off an object and enter the eyes through the cornea, the transparent outer covering.

CHAPTER 8: SPECIAL SENSES

9 TH GRADE SCIENCE CHAPTER 14 B Light and Color. Color Color:  Due to reflected light  Reflect all light  White  Reflect no light  Black Filters:

The Eye Special Sense Organs. Three Layers of Tissue 1.the sclera 2.the choroids 3.the retina.

Seeing light When light from an object enters your eye, the eye sends a signal to your brain and you see the object. When light from an object enters your.

It’s amazing!…Can you imagine life without it?

ELECTROMAGNETIC WAVES AND LIGHT. LIGHT Light carries energy and power. Light carries energy and power. Light is a form of energy that travels. Light is.

Unit 3 Light and Optical Systems Topic 6 The Source of Colors Remember to name and date your notes!

Light & Electromagnetic Radiation Ch. 19. Electromagnetic Radiation Electromagnetic waves are transverse waves created by the motion of electrically charged.

Eye Structure and Seeing Light. The eye is like a camera: Light enters, is focused on a surface, and a picture is made. Light enters your eye through.

Light and Color. An objects color depends on the wavelength of light it reflects and that our eyes detect. White light is a blend of all colors. When.

WAVES AND COLOR.

Color  You see an object as the wavelength  ( color) of visible light that it reflects  Sunflowers are yellow because it reflects (bounces off) mostly.

The human eye. What are the main parts of the human eye? Ciliary muscle Cornea Iris Lens Optic nerve Pupil Retina Sclera Vitreous humor Aqueous humor.

Standard: Explain how the human eye sees objects and colors in terms of wavelengths What am I learning today? How are wavelengths detected by the human.

Physical Science Light. Reflection & Mirrors  When light strikes an object  It is either reflected, absorbed or transmitted. Opaque: a material that.

Lecture 49 Light and Color Ozgur Unal

VISION How do we see?.

The eye S8P4 b, c.

The Eye and Sight Contrast ways in which light rays are bend by concave and convex lenses. Describe how a prism forms a visible spectrum Explain why different.

C-Notes: Anatomy of the EYE

Polarization Polarized light—light waves that vibrate in a single plane Polaroid filters block one plane of light waves.

18.1: Light Key concepts: What happens to the light that strikes an object? What determines the color of an opaque, transparent, or translucent object?

Chapter 10 Light.

Seeing Color Examples 3. White objects appear white because they reflect all the colors of the visible spectrum.

Chapter 12 COLOR THEORY.

The Eye and Sight Contrast ways in which light rays are bend by concave and convex lenses. Describe how a prism forms a visible spectrum Explain why different.

How would you describe the color RED to a person who cannot see?

Chapter 4 Light and Our World

Electromagnetic Spectrum

LIGHT Light carries energy and power.

Chapter 10 Light.

Unit 2 Notes: Vision.

Chapter 14: Light Section 2: Light and Color

Entering The Eye Here We Go. . ..

Presentation transcript:

Waves, Light & Sound Light & Color Recap, Wrap-Up & movin’ on

How do we see? Light passes – through the cornea – Through the aqueous humor – Through the pupil – Through the lens – Through the vitreous humor And then is detected by the rods & cones of the retina

How light is focused depends on… – the shape of the cornea lens (which changes) eyeball

Light images are Upside down on the retina Transmitted to the brain by the optic nerve Flipped by the brain so we see them right side up

If images aren’t focused correctly… Vision problems occur – Myopia (nearsighted) Only see things close to you – Hyperopia (farsighted) Only see things far away from you – Presbyopia Farsightedness in old people – Astigmatism Blurred vision

Colors White is ALL colors of light reflected back at you Black is all colors of light absorbed and NONE reflected back at you When an object has color, you see that color reflected the most – Eg: a red apple appears red because only red light is reflected back at you

Primary Colors of Light Red Blue Green

Colors that Cones can sense: Red Blue Green (Are you SEEING a pattern here?)

Primary Colors of Pigments Dyes added to make colors – Cyan (blue) – Magenta (pink) – Yellow

What is the difference between dyes and pigments? Dyes are dissolved in whatever solvent is used. Pigments are insoluble. A pigment is a coloring matter, usually in the form of an insoluble powder that is mixed with oil, water, etc. to make paint. The pigment lays on the surface and becomes part of the dry film. A dye is soluble in water and is used to color cloth, basket reed and other porous materials.