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

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In summary, the Student Satellite team from IIT Bombay is seeking advice on how to create a collimator lens system that can convert diverging rays from an LCD screen into parallel rays with minimal aberrations. They have identified that using a system of lenses with different focal lengths and refractive indices is preferable to a single lens. Their question is how to create such a system to collimate an LCD image.
  • #1
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
 
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  • #2
You know the formula from the preceding thread ...

What aberrations, precisely ?

Make a sketch of the situation !

##\ ##
 
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  • #3
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
DhruvSorathiyaPhysic said:
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 ?
 
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  • #5
berkeman said:
How are you related to the other/first user
I'm guessing what you are already thinking ... :wink: :biggrin:
 
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