Optical setup: proper lenses selection

  • Context: Graduate 
  • Thread starter Thread starter MG_xy
  • Start date Start date
  • Tags Tags
    Lenses Optical
Click For Summary

Discussion Overview

The discussion revolves around the selection of lenses for an experimental optical setup involving a polychromatic light beam from a monochromator. Participants explore the requirements for focusing the light onto a cylindrical lens and ensuring it strikes a glass prism in a nearly parallel manner.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant seeks suggestions for a combination of lenses to direct a light beam from a monochromator to a prism, emphasizing the need for a convergent beam with a small section.
  • Another participant suggests that drawings of the setup would be beneficial for understanding the requirements better.
  • A later reply proposes using a pair of achromatic doublet lenses but requests further advice on the appropriate focal lengths to achieve the desired beam characteristics.
  • One participant advises checking with optical component vendors for general principles and specific product recommendations, citing Newport as a resource for analysis and suitable achromats.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the specific lens combination or focal lengths needed, and multiple suggestions and considerations are presented without resolution.

Contextual Notes

The discussion lacks detailed drawings or specifications of the experimental setup, which may limit the clarity of the suggestions made. There are also unresolved aspects regarding the exact requirements for the beam characteristics.

MG_xy
Messages
10
Reaction score
0
Dear all,
I am going to realize an experimental optical setup and I need your suggestions to make the correct selection of lenses.
A polychromatic light beam coming from a monochromator (400-700, slit dimension: 1 mm, cone angle 11°) has to be focused onto the base of a cylindrical lens.
I need the light beam striking onto the glass prism being almost parallel through the path along the prism.
I think that a convergent beam with a section of 2 mm can “simulate” this ideal situation.
Can you suggest me a combination of lenses able to direct the light beam from the monochromator to the prism?

Thank you in advance
 
Science news on Phys.org
Some drawings would help ... it would also help to know what the setup is for.
 
Thank you for your fast reply.
In the attachment you can find a raw scheme of my experimental setup.
I thinck that a pair of achromatic doublet lens could be a good choice.
But I need some suggestions to make a proper choice of focal lenses in order to obtain a beam focused on the the base of the prism with a small section (1-2 mm) and with a very small cone angle.
Could you help me?

Thank you in advance
 

Attachments

Similar threads

Undergrad Digital Micromirror Device based optical setup
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Prism Spectrometer Objective: Optics Question
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Condenser lens retrofit for a lighting application
  • · Replies 24 ·
Replies
24
Views
3K
Graduate How to model converging illumination through object plane (in ZEMAX)
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Mode matching to an optical cavity
  • · Replies 0 ·
Replies
0
Views
3K
Undergrad Debug help: optical laser interference setup fails to work
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Laser Sheet Optics: Generating w/ Spherical Lenses
  • · Replies 9 ·
Replies
9
Views
7K
Graduate Collimating a white light beam
  • · Replies 1 ·
Replies
1
Views
3K
Graduate What lenses and setup should I use for a very narrow beam projector?
  • · Replies 3 ·
Replies
3
Views
6K
Undergrad What is the relationship between numerical aperture and resolution in lenses?
  • · Replies 1 ·
Replies
1
Views
2K