Large optical image rotation for project

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Discussion Overview

The discussion revolves around the feasibility of constructing a large optical image rotation device for an interior decoration project. Participants explore various approaches, materials, and methods for achieving optical image rotation, including the use of prisms and other optical components.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses interest in creating a large optical image rotator, mentioning the availability of Half-Penta Prisms and their high cost, while seeking advice on constructing a custom solution.
  • Another participant shares a code snippet related to image rotation, although it is unclear how it directly relates to the optical construction being discussed.
  • A third participant humorously comments on the initial post, indicating a willingness to support the project until the mention of a "death star" concept, which they found off-putting.
  • Another suggestion involves creating an acrylic prism with a secondary trapezoidal prism inside, proposing that trial and error could help determine the correct setup for redirecting and distorting the image.
  • There is uncertainty about the specific materials and shapes needed for the proposed prism design, with one participant drawing a parallel to the functioning of periscope mirrors.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to construct the optical image rotator. Multiple competing ideas and uncertainties about materials and designs remain present throughout the discussion.

Contextual Notes

Some participants express confusion regarding the initial link provided, which appears to be broken. Additionally, there is a lack of clarity on the specific optical principles and calculations required for the proposed designs.

pex
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Hi, fellow physics friends!

I'm doing a small interior decoration project in which I need optical image rotation as a component. I know that this can be done (see e.g. http://www.optics.arizona.edu/optomech/papers/swift%201972.pdf for a review paper). I've also seen Half-Penta Prisms sold online that do this.
However, a 25mm HPP costs $135. I want one which is about 1 meter in size, but on the other hand I have very low requirements on quality (a bit of optical disturbance is just positive) and the image need not be rotated 45 degrees (less or more is fine).

Question: is it realistic to attempt to construct one myself? How would I go about to do this? I do have access to a small engineering lab at my local university. What material would you recommend?

Note: The project is not to construct a death star with a death ray with which I can destroy planets insolent enough to defy my imperial will.
 
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thsi is some codes about image rotate, not sure if it is what you are asking for.
Imports System.IO
Imports System.Drawing.Printing
Imports RasterEdge.Imaging
Imports RasterEdge.Imaging.Processing

Dim Image As New RasterEdgeImaging()

Public Sub RotateImage()
If True Then
Dim LoadImage As New Bitmap("C:\\1.bmp")
Dim rotate As Graphics = Graphics.FromImage(LoadImage)
rotate.TranslateTransform(CType(bmp.Width, Single) / 2, CType(bmp.Height, Single) / 2)
rotate.RotateTransform(rotationAngle)
rotate.TranslateTransform(-CType(bmp.Width, Single) / 2, -CType(bmp.Height, Single) / 2)
rotate.InterpolationMode = InterpolationMode.HighQualityBicubic
rotate.DrawImage(img, New Point(0, 0))
rotate.Dispose()
Return LoadImage()
End If
End Sub
 
pex said:
Note: The project is not to construct a death star with a death ray with which I can destroy planets insolent enough to defy my imperial will.

Well, nuts! I was all-in and even would have sponsored you until you dropped that little nugget of bad news... :-p

By the bye, your link goes to "Page Not Found".
 
the link dint work for me,

im not sure if this is what you mean but...

if your trying to displace and/or re-orient a projected image then
i think you could make an acryllic prisim with a seconday trapizoidal prizim inside
trial and error would tell you how to set it up right but it should redirect, reorient and even distort the image if wanted

im not sure what actual material and/or shape a prizim might have to be though

for some reason i want to believe it would work in a similar maner as the mirrors of a parascope
whereas the edge/sides would be potential mirrors
 

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