Designing reflector straight line lamp

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Homework Help Overview

The discussion revolves around designing a reflector for a straight light tube, specifically focusing on a 6mm diameter and 300mm length tube. The goal is to achieve a beam width of 100mm at a distance of 500-700mm.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the need for clarity on the desired beam characteristics, such as whether the output should be converging, diverging, or parallel. There are suggestions to consider the type of reflector, whether it should be faceted or curved, and the implications of using a corner reflector to enhance output.

Discussion Status

Some participants have provided guidance on potential resources and design considerations, while others emphasize the need for the original poster to clarify their requirements and share preliminary work for more tailored assistance. Multiple interpretations of the reflector design are being explored.

Contextual Notes

There is an indication that the original poster may need to adhere to specific constraints regarding size, weight, and material costs, although these details have not been fully specified.

Harry Logtenberg
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Homework Statement
Who can help me to calculated a reflector for a straight light tube with a diameter of 6mm and a length of 300mm given a beam with a width of 100mm at a distance of 500-700mm?
Relevant Equations
I do not know.
Who can help me to calculated a reflector for a straight light tube with a diameter of 6mm and a length of 300mm given a beam with a width of 100mm at a distance of 500-700mm?
 
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:welcome: !

Did you do a little research ? Google 'parabolic optical reflector design calculator'and NASA has a nice webpage.

You of course don't want a dish but a kind of parabolic gutter. Formulas in one dimension stay the same.

And: make a sketch ! Do you want the beam to be parallel ('width of 100mm at a distance of 500-700mm') ? Or isn't that so critical ?

##\ ##
 
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You will need to specify some things about the desired result.
  1. Do you want the output to be converging, diverging, or parallel ?
  2. What is the acceptable variation in beam profile ?
  3. Do you want a faceted mirror or a curved surface (i,e. how to construct) ?
  4. Size and weight limits
  5. Material cost limits
The simplest way to triple the directed forward output is to use a corner reflector (in 2D) behind the source. This fact will drive many of the simpler design decisions.
 
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OP will need to repost this thread with their work shown if they want our tutorial help.
 

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