Search found 4 matches
- Thu Nov 12, 2020 2:34 am
- Forum: Beginning Holography
- Topic: Holographic Optical Element (HOE) of simple reflection mirror
- Replies: 13
- Views: 15830
Re: Holographic Optical Element (HOE) of simple reflection mirror
Din, if it’s a mirror with a focal length what’s the focal length formula then? Do I have to put my picture within focal length to avoid blurry image? How to increase the focal length of that mirror?
- Tue Nov 10, 2020 3:06 pm
- Forum: Beginning Holography
- Topic: Holographic Optical Element (HOE) of simple reflection mirror
- Replies: 13
- Views: 15830
Re: Holographic Optical Element (HOE) of simple reflection mirror
I used setup2 with 532nm coherent laser and I removed the lens from the laser module to get the beam expanded and I got some pretty good results as shown below Setup2.JPG I'm using a regular white flash light for image construction and the image looks good with high detailed resolution However when ...
- Mon Nov 09, 2020 6:32 pm
- Forum: Beginning Holography
- Topic: Holographic Optical Element (HOE) of simple reflection mirror
- Replies: 13
- Views: 15830
Re: Holographic Optical Element (HOE) of simple reflection mirror
Hi Din, So from my understanding Setup1 give more control on the beam width because you mentioned we can add beam expander at any point, does this means we have more control on the reference beam ratio to the object beam ratio which have to be 3:1 or 4:1 for holography ? -Yes I was asking about the ...
- Sat Nov 07, 2020 3:51 pm
- Forum: Beginning Holography
- Topic: Holographic Optical Element (HOE) of simple reflection mirror
- Replies: 13
- Views: 15830
Holographic Optical Element (HOE) of simple reflection mirror
Hi, I'm trying to get a holographic setup to simulate a reflection HOE for an actual reflection mirror (not an image of a mirror) an actual flat mirror specs. I'm using 532nm (green) laser as test & Incident beam should be 60degree from normal of HOE and the reflected beam is 0degree to normal a...