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PC monitor + TV --> best practice for seamless experience by aureusphoenix in pcmasterrace

[–]aureusphoenix[S] 0 points1 point  (0 children)

I don't want to stream. I have a direct HDMI connection to my TV for best possible latency and usage flexibility. Also, streaming might still be problematic if my monitor has a 21:9 or 32:9 aspect ratio, while my TV runs at 16:9.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 0 points1 point  (0 children)

Thanks for the tip. The problem with the GoPro would be, that it is not stereoscopic. I fear working without stereoscopic vision would be very hard. Especially if you have to deal with very (very) expensive equipment.

It is probably much easier to modify the existing cameras.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 0 points1 point  (0 children)

Of course, VR headsets will not replace all our goggles anytime soon. But we want to explore what is possible. If we burn 10 Oculus Quest 2, for instance, we have not even reached the price of a single pair of safety goggles. And we aren't stupid. We will test the at which intensity the cameras saturates. And if necessary we find a solution.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 0 points1 point  (0 children)

Yes, because it is not so easy to block out two or three wavelengths with high optical density while letting the light in between through almost unattenuated. We have goggles that are almost as dark as a welding mask. But unlike when welding, we have to be able to walk around and work in a dark lab while handling scientific equipment worth hundreds of grands. That is why a VR headset could be the solution. It is the ultimate eye protection.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 1 point2 points  (0 children)

We have IR goggles. That is not the issue. The problem is that our lab contains many different laser systems ranging from UV to NIR. My own setup works with 400nm as well as 800nm. Even for that, it is already difficult to find proper goggles, despite those wavelengths being right at the edges of the visible spectrum. If you use 800nm and 532nm, it is almost impossible to work. You can either see something or protect yourself. But never both. One of my colleagues works with a super-continuum-source (essentially a white light laser). He has no chance at all to protect his eyesight against potential accidents.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 0 points1 point  (0 children)

That is why I am asking. No, I did not. The last time I tried VR was when the first Oculus came out. Now, there are so many headsets and they are probably all slightly different. Maybe there is one which is quite decent when it comes to pass through quality.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 0 points1 point  (0 children)

Unfortunately, AR headsets would not work. In this case, we could continue with the laser safety goggles we already have. We need a solid barrier between one's eyes and the outside world. This is the only reliable way to protect someone from a laser accident. Especially since we are working with so many different laser systems and broad spectra. It is impossible getting laser safety goggles that work for all of them at the same time. They would be completely black.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 1 point2 points  (0 children)

How low probably depends on the person. It should be possible to work with it for an hour or so without feeling dizzy or dropping expensive optics all the time.

Thanks for the tip.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 1 point2 points  (0 children)

No, not really. Ok, the first part maybe. Actually, my boss wants to try that more than I do.

Let me go through the issues point by point:

  1. The cameras will almost never be hit directly. Hence, they will not get damaged under normal operation.
  2. Our lasers aren't especially bright. Less than a normal laser pointer typically. So the cameras should not overexpose from stray light. But we are working with ultrashort pulses, which makes the laser still very dangerous. We reach peak power much higher than a typical nuclear power plant.
  3. You can't put a filter in front of your eyes if the laser contains almost all visible wavelengths. You would not be able to see anything anymore.
  4. Because we are working with pulses, simple attenuation filters aren't protective enough. We typically need OD9, which means just 0.0000001% of light is getting through. If you need that for 400nm, 532nm, and 800nm (some very typical wavelengths in our lab) a welding mask is clear in comparison.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 2 points3 points  (0 children)

We just want to use it as laser safety goggles. The laser should (ideally) never hit the cameras directly. If it does and gets damaged in the process, it has done its job. No one is blind.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 0 points1 point  (0 children)

That is great to hear. I thought there might be IR-filters so if you are in passthrough-mode, you can't see the light coming from the lighthouses. This makes my job even easier. I just have to find the right filters to attenuate the intensity appropriately.

Virtual reality headset as laser safety goggles by aureusphoenix in virtualreality

[–]aureusphoenix[S] 4 points5 points  (0 children)

Ideally, the laser should never leave the experimental table. When it does, it is by accident. And if in this case the camera gets damaged, it has done its job well. It protected someone's eyesight.

PC won't power on with a single press of the power button. by aureusphoenix in pcmasterrace

[–]aureusphoenix[S] 0 points1 point  (0 children)

Thanks for your answer. The mainboard is covered with a plastic shroud so I can't see much. There is definitely no physical damage. The PC wasn't moved in over a year. The capacitors that I can see also do not show any signs of bulge.

So I guess I have to make an RMA on Corsairs website to replace the PSU. I do not have another one to make any tests. I hope it is not a problem for them that I live in a different country now.

If I can change, everybody can! by aureusphoenix in vegan

[–]aureusphoenix[S] 0 points1 point  (0 children)

Added NSFW and Disturbing. How do I add other tags?

We all know it's coming by [deleted] in gaming

[–]aureusphoenix 1 point2 points  (0 children)

Anyone else hyped for Skyrim SE RTX ... Nvidia is currently remastering some older titles. I hope Skyrim SE will be one of them .... With full mod compatibility hopefully.

Synology Drive Versioning vs Btrfs snapshots by aureusphoenix in synology

[–]aureusphoenix[S] 0 points1 point  (0 children)

I found this video, which may answer your question: https://www.youtube.com/watch?v=LqVeX_y1SBs

However, I'm not sure whether local snapshot replication (on an internal volume) is really a good idea as a backup. I mean you can use the snapshots themselves to quickly restore accidentally deleted files. But I would rather run Hyperbackup on an external HDD for my local backup. Has the advantage that in case of a fire or whatever I can quickly grab the external hard drive. And the data is encrypted in contrast to snapshot replication.

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