How to make the best collimator using a system of lenses?

  • #1
DhruvSorathiyaPhysic
3
0
I want to make a collimator lens which can convert the diverging rays from and LCD at finite distance screen into parallel rays.
But in order to reduce the aberrations, using system of lens is preferable than using a single lens. Can you suggest the way to create this kind of system please. I need focal length around 130 cm.

regard,
Student Satellite team
IIT Bombay
 

Answers and Replies

  • #2
BvU
Science Advisor
Homework Helper
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You know the formula from the preceding thread ...

What aberrations, precisely ?

Make a sketch of the situation !

##\ ##
 
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Likes Twigg and berkeman
  • #3
DhruvSorathiyaPhysic
3
0
first of all thanks for helping.
Aberration types are nothing but Aspherical and Chromatic.
Any lens will definitely create some aberration but we don't want that right ? So I Found somewhere that using system of lens which have different focal length and different refractive index instead of a single lens reduces aberration. So my question is that how can we make system of lenses which can collimate a LCD image.
 
  • #4
berkeman
Mentor
64,182
15,410
first of all thanks for helping.
Aberration types are nothing but Aspherical and Chromatic.
Any lens will definitely create some aberration but we don't want that right ? So I Found somewhere that using system of lens which have different focal length and different refractive index instead of a single lens reduces aberration. So my question is that how can we make system of lenses which can collimate a LCD image.
How are you related to the other/first user @DhruvSorathiya ?
 
  • #5
davenn
Science Advisor
Gold Member
9,651
9,180
How are you related to the other/first user
I'm guessing what you are already thinking ... :wink: :biggrin:
 

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