Lighting (4)

Question 1

Photons

Answer 1

“energy packets” of electromagnetic radiation that travel in wave form

• micro waves
• radio waves
• infrared waves
• x-ray waves
• gamma waves

Question 2

Nanometer (nm)

Answer 2

ultraviolet light waves units (billionth of a meter)

- or angstroms (A) = 0.1nm

Question 3

Speed of light

Answer 3

186,000 miles /sec
300,000 km /sec
- speed of photons

Question 4

The most important factor is ____

Answer 4

contrast

• red for visible
• yellow/green for black light (fluorescent)

Question 5

What is Fluorescence

Answer 5

process of converting one wavelength to another

• black light 365nm
• causes molecule to become excited, unstable wants to return stable
• releasing built up photon energy at a new wavelength 550nm (green, yellow)