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73 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is the basic unit of linear measurement in the Metric System? |
Meter |
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One Meter is equal to how many inches? |
39.37 inches |
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One inch is equal to how many Millimeters (mm)? |
25.4 |
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One Meter is equal to how many Decimeters (dm)? |
10 |
How many fingers do you have? |
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One Meter is equal to how many Centimeters (cm)? |
100 |
Disney celebrated how many years of magic in 2023? |
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One Meter is equal to how many Millimeters (mm)? |
1,000 |
"Do you know I'd walk _____ miles if I could just see yoooooou...tonight." Vanessa Carlton wrote the banger that Terry Crew from the movie "White Chicks" made iconic. |
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Facial measurements such as PDs, bifocal segment heights, lens / frame measurements are expressed with what kind of unit of measure? |
Millimeters (mm) |
Think of this character from the musical Thoroughly Modern ______. |
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How many Nanometers are in a Meter? |
1 Billion |
Minecraft has made WELL over this amount in dollars since it's release in 2012. |
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How many Nanometers are in pne Millimeter (mm)? |
1 million |
If you were to hold the world for ransom like Doctor Evil did in "Austin Powers" during the 1960s, how much would it be for? |
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In addition of a plus (+) or minus (-) number, the answet will always be the same as the ______ of the two numbers you are adding |
Higher |
Example : + 10.25 (plus) - 8.50 = ? - 3.50 (plus) - 4.75 = ? + 3.00 (plus) - 7.00 = ? |
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When multiplying or dividing two numbers with the same sign, the answer will always result in a number with a ____ sign. |
Plus (+) |
Example: - 3 (times) - 3 = + 4 (times) + 4 = + 18 (divided by) + 3 = - 24 (divided by) - 8 = |
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When multiplying unlike signs, the resulting answer will always be _____. |
Minus ( - ) |
- 4 (times) + 3 = + 5 (times) - 7 = + 15 (divided by) - 3 = - 36 (divided by) + 6 = |
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What is the shortest of waves on the Electromagnetic Spectrum? |
Cosmic Rays |
Measured in trillionths of a centimeter |
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What is the longest wave on the Electromagnetic Spectrum? |
Long Electrical Oscillations |
Measured in thousands of kilometers |
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What portion of the Electromagnetic Spectrum in do the photosensitive receptors of Retina respond to? |
Middle of the spectrum; Visible Light |
Malcolm in the what? |
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How many levels of the Electromagnetic Spectrum are there? |
9 |
What is a 6 without a ___? |
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Visible Light can be measured from as low as ___ ( nm ) to as high as ___ ( nm ). |
390 / 750 |
The difference is a full 360 |
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Waves of the Visual Spectrum are measured in __________ of a Meter. |
Billionths; also known as a Nanometer ( nm ) |
Not millionths but... |
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Put the Visual Light Spectrum and their measurememts back in order! |
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All mixed up! Arrange the Visual Spectrum and their corresponding values. |
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What takes cold water to boil? |
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Light travels at _______ miles per second in the air. A.) 156,000 B.) 166,000 C.) 176,000 D.) 186,000 |
D.) 186,000 |
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Who put fourth Wave Theory in the late 1600's?
Christian Huygens (or) Isaac Newton |
Christian Huygens |
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What is Wave Theory? |
A Theory Of Light which describes light as moving in waves, very much like the motion of waves in water. |
Think Clow Cards from "Cardcaptor Sakura". |
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Who put forth the Corpuscular Theory in the late 1600's? Isaac Newton or Christian Huygens |
Isaac Newton |
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What is Corpuscular Theory? |
Describes light as being minute particles whicb originate from the light's source. |
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What is a Photon? |
A tiny light particle. |
What kind of space does Genie refer to in "Aladdin"? |
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How many Theories Of Light are there and what are they? |
2 / Wave Theory ( and ) Corpuscular Theory |
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Which example is a Wavelength and which is a Radiant Of Light? |
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What is a Wavelength? |
The distance from the crest of one wave to the crest of another. |
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What is a Frequency? |
The number of times the crest or trough of a wave passes a point in space in a given unit of time. |
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Which figure represents a dense material refracting light and which is denser than air? |
A.) Is denser than air B.) Dense material |
Why does each material help move light? |
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Explain a normal Refraction Of Light? |
If light enters a new medium at parallel angle, the light is slowed down while it is in the new material then resumes its original speed after exiting. The direction of light does not change. |
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What happens when light enters any given transparent material denser than air? |
The velocity of that light is reduced. |
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What happens when light enters a dense material at some angle other than parallel? |
The direction of the light is altered as it exists. |
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The denser the matetial light enters... |
The more light is slowed down and the more it is deviated from it's original course. |
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The density of any given material can be expressed as an ______ __ _________. |
Index Of Refraction |
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How is the Index Of Refraction calculated? |
N = speed of light in the air ---------------------------------- speed of light in material |
Lightfoot divided by Light-Boot |
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N is the mathematical symbol that indicates what? |
Index Of Refraction |
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The standard Index Of Refraction in the optical industry is? |
1.530 |
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Put each squadrant in their corresponding material and matching index. Order is not necessarilly important as long as amounts match the proper item. |
1.) Air 10.) 1.000 2.) Cornea 11.) 1.370 3.) Crystalline Lens 12.) 1.420 4.) Vitreous Humor 13 ) 1.333 5.) Opthalmic Crown Glass 14.) 1.523 6.) CR-39 Plastic 15.) 1.490 7.) Polycarbonate 16.) 1.586 8.) High Index Plastic 17.) 1.600 9.) Flint Glass 18.) 1.805 |
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A Prism geomatrically looks like which shape? |
A triangle |
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What are the two main components to a Prism? |
Base / Apex |
Every _____ needs a _______ |
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Light is always bent towards the _____ of the Prism. |
Base |
It's in the name of this song. |
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The definition of a Prism diopter can be expressed mathematically with... |
1 cm / 1m = 1◇ |
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What is Image Displacement? |
Wheb the image of the original object appears to be in a position other than the position from which the light had originally emanated. |
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When two Prisms are place base to base, what type of lens do they form? |
Plus |
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Images formed by a plus lens are called ____ ______. |
Real Images |
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The images formed by a Plus Lens are called ___ ______ because the rays of light actually do come together to form a ____ _____ ______. |
Real Images / Real Focal Point |
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The distance from the plus (prism) lens to the focal point is called a _____ ______. |
Focal Length |
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If the focal length of a given lens is equal to 1 meter, that lens is said to have a power of ____ diopter. |
1 |
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When two Prisms are placed apex to apex, it is said to form a _____ lens. |
Minus |
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Minus (prism) lenses cause parallel rays of light to ________. This means they never actually ____ _______ like they do in a plus (prism) lens. |
Diverge / Come Together |
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When the light rays extend backward in a minus (prism) lens, they would eventually meet at the ______ _____ _____. |
Virtual Focal Point |
...because it doesn't actually exist |
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The image formed at the Virtual Focal Point is called a _______ _____. |
Virtual Image. |
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The distance from the minus (prism) lens to the Virtual Focal Point is called the _____ ______. |
Focal Length. |
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If the Focal Length in a minus (prism) lens is equal to 1 meter, ot is said to have a power of _______. |
-1.00 Diopter |
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The stronger the power in a lens using diopter, the shorter the _____ ______. |
Focal Length |
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What type of Prism lens is this? |
Minus |
When you don't what to think positive, you... |
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What type of Minus Prism Lens is this and why? |
Trick question; no prism here |
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What type of Minus Prism Lens is this and why? |
Base In Prism / OCs are wider than PD |
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What type of Minus Prism Lens is this and why? |
Base Out Prism / OCs narrower than PDs |
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How is the relationship between the power of diopters and resulting focal lengths expressed mathematically? |
D = 1 / f [and] F = 1 / D |
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What type of Minus Prism Lens is this and why? |
Base Up Prism / Right Eye; base is below OC |
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What type of Minus Prism Lens is this and why? |
Base Down Prism / Right Eye; base is above OC |
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At which point in a Minus Prism Lens are prisms not present? What is this place? |
The point where the apices (two apexes) meet / Optical Center |
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What type of Prism Lens is this? |
Plus Lens |
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What type of Plus Prism Lens is this and why? |
Trick question; no prism prescription here |
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What type of Plus Prism Lens is this and why? |
Base Out Prism / OCs wither than PD |
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What type of Plus Prism Lens is this and why? |
Base In Prism / OCs narrower than PD |
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What type pf Plus Prism Lens is this? |
Base Up Prism / Right Eye; base above OC |
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What type of Plus Prism Lens is this and why? |
Base Down Prism / Right Eye; base is below OC |
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At which point in a Plus Prism Lens are prisms not present? What is this plave? |
The point where the two bases meet / Optical Center |
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What is the Prentice's Rule? |
The way the power of Prism is calculated. "The power of prism is equal to the power of the lens in diopters times the number of decentration in millimeters divided by 10." |
◇ = F x dec (mm) _____________
10 |
