usin g a cl assro om p roject or to stu dy th e pro perti es of l ight n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Usin g a Cl assro om P roject or to Stu dy th e Pro perti es of L ight PowerPoint Presentation
Download Presentation
Usin g a Cl assro om P roject or to Stu dy th e Pro perti es of L ight

Loading in 2 Seconds...

play fullscreen
1 / 54

Usin g a Cl assro om P roject or to Stu dy th e Pro perti es of L ight - PowerPoint PPT Presentation


  • 79 Views
  • Uploaded on

Usin g a Cl assro om P roject or to Stu dy th e Pro perti es of L ight. Drs. Michael Ottinger and Brian Bucklein Missouri Western State University St Joseph, MO 64507 Missouri Association of Physics Teachers Meeting November 6, 2010. Outline. Creating a Three-Color Image (RGB)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Usin g a Cl assro om P roject or to Stu dy th e Pro perti es of L ight' - jeneva


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
usin g a cl assro om p roject or to stu dy th e pro perti es of l ight
Using a Classroom ProjectortoStudythePropertiesofLight

Drs. Michael Ottinger and Brian BuckleinMissouri Western State UniversitySt Joseph, MO 64507

Missouri Association of Physics Teachers MeetingNovember 6, 2010

outline
Outline
  • Creating a Three-Color Image (RGB)
  • How LCD and LCoS Projectors create color images
  • Obtaining and Using Spectral Glasses
  • Demonstration of the Separation and Mixing of Colors
  • Demonstration of the Polarization of Light
three color image system
Three Color Image System

Low Pass

Red Image

Green Image

High Pass

Object

RGB Filters

Blue Image

three color image system1
Three Color Image System

Red

Lamp

Red Image

Superimpose Images

Blue Lamp

Blue Image

Green Lamp

Green Image

methods for reproducing rbg
Methods for Reproducing RBG
  • Digital Light Processing (DLP)
  • Liquid Crystal Display (LCD)
  • Liquid Crystal on Silicon (LCoS)
lcd projector
LCD Projector
  • Light Source (Bulb)
  • Polarizer Lens
  • Beam Splitter
    • Low Pass Mirror (red passes/ blue and green reflected)
    • High Pass Mirror(blue passes / green reflected))
  • 3 LCD’s (one per color)
  • Dichroic Combiner Cube
lcos projector
LCoS Projector

UHP Mercury Lamp

Note: Green is Polarized Perpendicular to Red and Blue

using the projector to study colors
Using the Projector to Study Colors
  • Diffraction Grating Glasses
  • Available through manycompanies for about $0.25 to $0.45 each
  • 500 lines/mm, linear diffraction grating
breaking down the colors
Breaking down the Colors
  • The following slides were made by using the “Shapes” drop down in PowerPoint to make two thin rectangular lines.
  • The top line was set to white and, using the color setting the bottom line was set to different color combinations.
slide17

Please put on

your spectral glasses

slide26

You may remove

your spectral glasses

polarization
Polarization
  • LCD and LCoS Projectors use Polarized Light
    • Typically the Red and Blue have the same polarization
    • Green is polarized perpendicularly to the Red and Green
conclusions
Conclusions
  • Classroom projectors create images from three color regions of polarized light (RGB)
  • Using the projector and inexpensive spectral glasses you can demonstrate color mixing.
  • Polarization of light can be demonstrated from the different polarizations of the light
pictures were taken by placing the spectral glasses on the front of a digital camera
Pictures were taken by placing the spectral glasses on the front of a digital camera

Pictures of Spectral Lines

slide39

Polarization of

Projector Light