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Rspec Explorer Camera

Rspec camera aimed at spectral tube and LED tower

Hydrogen emission spectrum, as viewed with Rspec software.

LED tower spectrum, as viewed with Rspec software.
  • The Rspec Explorer is a web cam with diffraction grating attached. A live image, or previously acquired pictures of a spectrum can be viewed and shown to a class, and features explained and analyzed.
  • The Rspec software (shown above) allows for spectral analysis, and can be downloaded here: https://www.fieldtestedsystems.com/GetRex/. As long as the camera is plugged into your computer, a software license passcode is not required. Both mac and pc versions are available. 
  • Some useful instructional videos can be found here: https://www.fieldtestedsystems.com/videos/
  • The LED tower (shown in top photo above, next to spectral tube) contains 11 different LED’s of various wavelength, and pairs well with the camera as a demo.
  • Located in L35, Isle G, top shelf, next to diffraction gratings.
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Mixing red and green lasers

0412190950 (1) 0412190950a 0412190952

Shine red and green laser light into fiber optic simultaneously to produce yellow.

Lasers need to be aimed appropriately to obtain the optimal ratio of red to green (aim green less directly than red, as green laser is brighter).

Location

  • Fiber optic and lasers in Lo1, section B5 and B6.

 

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Perpetual Top

1004171150

1004171149a

1004171149

  • Top contains motor and off-balance rotor with rotational wobble.
  • The wobbling rotational impulse provides top impetus to spin in clockwise direction. For additional info, see: P3-3503_DS.
  • Top also contains a red/green/blue LED. Persistence of vision mixes primary colors as top spins, allowing eye to see various secondary colors depending on LED flashing pattern.
  • Located in L03, section D4.

 

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Olive Oil Fluorescence

olive oil fluorescence 2

olive oil fluorescence

  • Olive oil fluoresces when illuminated by light within a certain frequency range. Violet light causes fluorescence, but attenuates quickly. Green light causes fluorescence but doesn’t attenuate. Red light scatters but does not fluoresce or attenuate.
  • Oil and lasers in L01, section B5 (or B6).
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Optical Rotation Bowl

 

Optical Rotation Bowl Demo Picture
Optical Rotation Bowl Demo Picture 2
Optical Rotation Bowl Demo Picture 3

  • Illuminate bowl with polarized light. Bowl, and objects within,
    appear multi-colored when viewed through a polarizer. Rotate polarizer to
    see colors change.
  • Phenomenon is the result of optical rotation. Linearly polarized light gets rotated by molecular composition of bowl; extent of rotation
    depends on wavelength of light, causing angular separation of colors.
  • Located in L01, section B5.