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Cheap low-res camera sensor with high frame rates?

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demute:
I'm planning to use a camera sensor to measure flicker from luminaries. In some environments there are many different luminaries with different flicker characteristics in the ceiling. Because of that I would like to use a cheap camera sensor to build a flicker meter that will create a heatmap of the luminaries.

I need frame rates up to about 50 kHz but the number of pixels of the image isn't very critical. Ov2640 has a throughput of 1600x1200 pixels @ 15 fps = 28.8 MPixels/sec, so given the same data rate I would like to use a cheap camera sensor to sample an image of 320x240 pixels. So if the frame rate is 50 kHz, I would typically fit 28.8e6/50e3=576 pixels in one window and then scan it for 50 000 times or so, then moving on to the next window until I have scanned the entire image.

I wish ov2640 could be used for this but from what I understand from the datasheet the frame rate doesn't depend on the window size. Does anyone know about a cheap camera sensor that can do this?

RoGeorge:
Why does it has to be a camera?
I'll use a photodiode attached to a transimpedance amplifier.

NiHaoMike:
Optical mouse sensors are high framerate and low resolution, but I'm not aware of any that support reading the raw data at a fast rate.

demute:

--- Quote from: RoGeorge on January 08, 2023, 04:01:59 pm ---Why does it has to be a camera?
I'll use a photodiode attached to a transimpedance amplifier.

--- End quote ---

I am using a photodiode in my current measurement device. However when I tried it in a store with 20+ different lights, it was hard to tell how much flicker came from each light source. So making an image of the flicker would be useful in my application.

demute:

--- Quote from: NiHaoMike on January 08, 2023, 04:12:45 pm ---Optical mouse sensors are high framerate and low resolution, but I'm not aware of any that support reading the raw data at a fast rate.

--- End quote ---

I think that will result in a too low total resolution. Still, I need a sensor of at least 320x240 pixels.

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