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Could you make a 'shotgun sensor' like a shotgun mic? Those things are basically just a microphone in a long tube, which reduces the 'field of view'. The sensor
by the_pwner224 5y ago
Could you make a 'shotgun sensor' like a shotgun mic? Those things are basically just a microphone in a long tube, which reduces the 'field of view'. The sensor reading would go down, but you could measure how it's affected and compensate for that.
- the__alchemist 5y agoRoughly, I think that's what the optics are doing. The higher-FOV sensors are short, while variants that have smaller FOVs like this use a long tube. Also of note, you can get directionality from microphones by using arrays configured in various ways, that take advantage of interference. For example, 2 microphones, with the front summed with the inverted rear delayed by the dist sound takes to travel between the 2. There are caveats to this, like non-uniform freq response. Radars do this for transmitting RF energy; I'm curious if this could be employed in a camera.