The Secret Society of Lathe Trolls

“Just one example: a well-calibrated and well-maintained cutting lathe can cut modulations smaller than 1 nanometer. You cannot see that modulation in a microscope anymore, but you can still hear it. Just for comparison, the most sophisticated microchip production process currently delivers 4-nanom...

Hi, My name is Ennis. I am here to share my little knowledge and keep learning from those others that know more than me. I am committed to build an analogue recording system based in laser holography, to record an optical track or a relief groove on a polymerized substrate. I admire everyone that is...

Hi Fabien,
Can your software be loaded in Warcraft, so I can build a scenario with another one or two players where we fight on the virtual record surface , using the grooves as trenches?

I might buy a virtual-reality set for that. What do you say?

If not, can you let me know why it isn't?

I think a laser scanning system for pressed records in conjunction with a DA converter is a better business idea. (Better than a laser cutter to be played with needles). Especially when I think about how many people need a record player and how many need a lathe... At the very least, the "laser-sys...

I think a laser scanning system for pressed records in conjunction with a DA converter is a better business idea. (Better than a laser cutter to be played with needles). Especially when I think about how many people need a record player and how many need a lathe... At the very least, the "laser-sys...

I think a laser scanning system for pressed records in conjunction with a DA converter is a better business idea. (Better than a laser cutter to be played with needles). Especially when I think about how many people need a record player and how many need a lathe... At the very least, the "laser-sys...

That's right. Thank you.

For mechanical records only, I don't like laser. I like a needle for a turntable, and a laser for optical.

Recording with a laser and reading with a needle is an stretch, and the other way around too, just the first one seems to work better....

Oh Wow. Thank you for the warning, I had looked into it I must say... I've though about dyed/doped polycarbonate or glass-filled composite resin. A substrate with some mechanical compliance makes it better, I believe. I started a number of threads here, if you want to look. https://gearspace.com/boa...

Hi, two of my goals are to make a disk recorder player that records vinyl or an optical track that resembles the former. Recorded as an hologram, maybe in a substrate like blu-ray blue dye or similar. The problems are/might be similar to those encountered in any of the optical disks formats. It's tr...

Hi OptoVox! Nice idea! To me seems kind of a hybrid between CD and phonograph record. But I'm not expert on optical systems beyond basics we learned at university.... What do you think of this idea? Do you see any future for this? I don't want to be the bad guy but since you are asking - Too comple...

Hi OptoVox! Nice idea! To me seems kind of a hybrid between CD and phonograph record. But I'm not expert on optical systems beyond basics we learned at university.... What do you think of this idea? Do you see any future for this? I don't want to be the bad guy but since you are asking - Too comple...

No SLM used, no OLM.

Its actual holography, like Dennis Gabor invented it. .. not the Texas Instrument's thing.

Hello, The groove geometry is created with the oscillation of the audio motors, and the modulation of the light in amplitude/intensity. Very much like a cutting lathe does. There's a phenomenon called secondary emission, related to harmonics reinfocements and cancellations, that makes an hologram (a...

Hi, I want to introduce the working principle for a new analogue recording technology. (Pictures below). It is an analogue holographic audio recorder. It utilizes the simultaneous modulation of the intensity of a laser beam; and the correlative phase between a reference beam and an object beam (both...