Dear kaizhi, thank you for your rapid reply and for the battery info.
However, the rest of the information - to be honest - is a bit sad.
The light shield has an “openMV” logo printed on it. It is thus part of an open-design project. There is even an example script coming with the open-source IDE. Not supplying the EDA files just because they are deemed “not necessary” (presumably because not many people asked for it, or because it is a relatively simple design?) seems strange. Also, providing a measure of the optical power of the LED seems like an important information for an LED shield. In our particular case, these informations would be very helpful, and we may be the first to ask for them, but they would be required for any other, non-expert user who does not want to go into the trouble of reverse-engineering it for re-designing or adapting it. That’s the philosophy of the “open”, openMV project, I thought?
Please supply these design files for the community. That would be greatly appreciated, not just by us, but also by future users.