Or when you look for a clip art of a prism

  • Thread starter Borek
  • Start date
  • Tags
    Art Prism
In summary, the conversation discusses the possibility of creating a prism with a negative index of refraction, which is a concept related to negative-index metamaterials. The popular version of a prism, known as the "logo" worldwide, is often depicted incorrectly. The conversation also touches on using lenses and the general principles of light dispersion.
  • #1

Borek

Mentor
28,918
4,199
splitting white light, and turns out refraction is... complicated

1667034728291.png
 
  • Like
  • Haha
  • Love
Likes hutchphd, russ_watters, jedishrfu and 5 others
Physics news on Phys.org
  • #3
Would it be possible to make a prism with a negative index of refraction?
 
  • #5
One of those images must be a triangular hole through a large block of glass.
 
  • Like
Likes DaveC426913
  • #6
Hornbein said:
Would it be possible to make a prism with a negative index of refraction?
Used them - well, actually senses, but the same idea - in a freshman physics lab I taught. They are air filled, and you make the measurements in a water tank. Concave is focusing.
 
  • #7
I think this is the most popular version :wink:
(over 45 million sold according to wikipedia)

1667250320748.png
 
Last edited:
  • Like
Likes DaveC426913
  • #8
Frabjous said:
I think this is the most popular version :wink:
I read somewhere recently, that is the most widely recognized "logo" worldwide.
 
  • Like
Likes russ_watters
  • #9
Its sad to see that the illustrations are either poor or flat out wrong and that they got published anyway.
 
  • #10
gmax137 said:
I read somewhere
:wink:
gmax137 said:
the most widely recognized "logo" worldwide.
I'm not sure I buy that. There's some stiff competition.
1667257882816.png

1667257949184.png

1667257910915.png

1667258031150.png
 
  • Like
Likes berkeman, gmax137 and Hornbein
  • #11
Vanadium 50 said:
Used them - well, actually senses, but the same idea - in a freshman physics lab I taught. They are air filled, and you make the measurements in a water tank. Concave is focusing.
I presume you meant lenses.
I recall teaching a sound lab using convex mylar helium filled balloons in air as diverging lenses.

There are general principles that make the light dispersion itself monotonic. As I recall this follows from the Kramers-Kronig relations.
 
  • #12
hutchphd said:
I presume you meant lenses.
Yes, thanks.
 

Suggested for: Or when you look for a clip art of a prism

Back
Top