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OPT3001: OPT3001

Ye Huaying
Prodigy 30 points
Part Number: OPT3001

Hello TI team,

We are using OPT3001  in  Automotive HUD ,  but we are using opening angle of +/-12° ， not +/-45° , I have some questions base on current design .

1: Can we improve the performance by software Compensate ? what the compensate value @ current design with +/-12° . 

2: If we want to do some measurement to get the compensate value on bench or vehicle, then could you provide some suggestion . eg: How to create the test bench in details , what's the equipment we need , and so on ,

3:Currently , software setting the config 100ms automatic full scale , if any disadvantage to this mode compared to other fixed modes? Can we improve the photosensitive characteristics by other config setting by software ? 

4:As i know the photosensitive characteristics depends on opening angle, transmittance, light source, light exposure angle, temperature, voltage, etc.,  we do not have vehicle test data about these lights and ALS.but we  want to have quantitative empirical data for reference. IT should have a lot of professional test data and experience in considering different application scenarios. Can you share with us some other data and experiences that are not in the datasheet and are close to actual application scenarios? 

Thanks 

  • 0
    TI__Expert 6800 points

    Hi Ye,

    1. The performance over angle can't be improved with software but can be improved by implementing a diffuser or light pipe: Extending light sensor field-of-view with lenses, diffusers and light pipes

    2. Here is a video going over this topic: Light Sensor Calibration in the Lab

    3. 800ms conversion time will over 8x better resolution if needed.

    4. I'm not sure exactly what info you may be looking for but I would recommend looking at the datasheet plots to get some expectations for how the sensor will perform over some conditions i.e. angle, temperature, voltage, light source. The transmittance and opening angle will depend on the system so I would refer to the Precision Labs videos that I linked above. They go into a lot of detail on this sort of thing.

    Thank you,

    Brent Elliott