Search found 56 matches
- Sun Jun 22, 2014 2:25 am
- Forum: Beginning Holography
- Topic: 4 Lasers to build a 3D Hologram
- Replies: 6
- Views: 4099
4 Lasers to build a 3D Hologram
I suspect you are not really making a hologram, metalstar. How are you using 4 lasers one on each side?
- Wed Dec 25, 2013 5:25 am
- Forum: General Holography
- Topic: Interactive photopolymer?
- Replies: 7
- Views: 3305
Interactive photopolymer?
What the hell is going on here:
http://www.indiegogo.com/projects/holog ... le-devices
(Oh OK. Merry xmas)
http://www.indiegogo.com/projects/holog ... le-devices
(Oh OK. Merry xmas)
- Wed Nov 27, 2013 4:18 am
- Forum: General Holography
- Topic: Market report
- Replies: 1
- Views: 1553
Market report
Sounds like a useful report if you have $5000 to spare.
http://www.researchandmarkets.com/resea ... ing_market
http://www.researchandmarkets.com/resea ... ing_market
- Tue Aug 06, 2013 3:55 pm
- Forum: General Holography
- Topic: scaling in holography
- Replies: 16
- Views: 5466
scaling in holography
Petr
The answer to your question is no, it is not possible to have the same lateral and longitudinal magnification when scaling an image. This is true whatever optical method you use: Wavelength change, lenses, or change in reconstruction geometry.
The answer to your question is no, it is not possible to have the same lateral and longitudinal magnification when scaling an image. This is true whatever optical method you use: Wavelength change, lenses, or change in reconstruction geometry.
- Fri May 31, 2013 4:03 pm
- Forum: General Holography
- Topic: Rotate a polarizing beam splitter cube
- Replies: 8
- Views: 3613
Rotate a polarizing beam splitter cube
I think you might mess up the polarization, no?
- Thu May 02, 2013 12:32 pm
- Forum: General Holography
- Topic: Speckle noise reduction
- Replies: 68
- Views: 144336
Speckle noise reduction
From what I recall this is a fundamental problem that has no solution. The speckle will be there whatever you do, as it is caused by the random interference of laser light, and a consequence of the high degree of coherence.
- Mon Jan 07, 2013 7:33 pm
- Forum: Optics
- Topic: Color Holography Optics setup
- Replies: 39
- Views: 131611
Color Holography Optics setup
Milan, our thoughts are with you. We have all spent hours in the night in the lab and have had disasters. But we appreciate that holography is still alive, just, only because of the energy that people like you put into it. So we can't fix your laser, but feel your pain at least... Don't give up, dud...
- Sat Jan 05, 2013 5:50 am
- Forum: Optics
- Topic: Color Holography Optics setup
- Replies: 39
- Views: 131611
Color Holography Optics setup
Oh boy... I wish I had not said
in an earlier post.Of course color holography is additive by its nature anyway.
- Wed Jan 02, 2013 5:10 am
- Forum: Optics
- Topic: Color Holography Optics setup
- Replies: 39
- Views: 131611
Color Holography Optics setup
I think you are right, walschuler. It is exactly the ideas of additive color photography in early 20th century. Of course color holography is additive by its nature anyway. But it is fascinating how holography mirrors early photography, e.g. Lippmann photograpy.
- Thu Oct 25, 2012 11:14 am
- Forum: Off Topic
- Topic: We've won an award!
- Replies: 18
- Views: 9164
We've won an award!
Certainly seems to be a dodgy auto-generated "award". But to be fair to Dinesh, it may be that someone else made the award and Dinesh assumed it was genuine.
Here are similar award winners:
http://bit.ly/VJ5bVO
Here are similar award winners:
http://bit.ly/VJ5bVO