Designing a Passive Lidar Detector Device

82 pointsposted 2 months ago
by speckx
(atredis.com)

11 Comments

MezzoDelCammin

2 months ago

I admit it's a nice experiment, but I guess the title should be "detecting iPhone Lidar".

Both the 60Hz frequency and 940nm wavelength are fairly specific. There's a whole world of different wavelengths (1550nm is fairly common) and frequencies (up to 1MHz isn't particularly exceptional).

There's been a whole thread on the topic here:

https://news.ycombinator.com/item?id=46110395

aidenn0

2 months ago

Right, I wonder if they considered a pulse-detector with a dichroic filter and a 555?

MPSimmons

2 months ago

Agreed, I immediately thought of vehicles, but this is cool too.

user

2 months ago

[deleted]

vzaliva

2 months ago

If you are sensitive to flashing - do not try to open this link. It is impossible to read because of videos of flashing lights.

elric

2 months ago

Makes me wonder about how safe lidar is for humam and animal eyeballs?

garbagewoman

2 months ago

The videos are of invisible wavelengths of light transformed into visible light. Why does that make you ponder the safety of the infrared light?

estimator7292

2 months ago

I have some very bad news for you about the kinds of light emitted by the sun and also your oven

_jzlw

2 months ago

[flagged]