I'm trying to set up a tiny camera for a tiny science experiment. The camera is an OmniVision OVM6211:
It's pretty much a 3mm cube, containing the image sensor and all the lenses. It has a 90º FOV and can focus from about 100mm.
What I need for the experiment is a much shorter focus distance of about 10mm - 20mm, and I thought this might be possible to do by adding another lens.
However, I don't know a lot about lenses.
- Is it possible to reduce the focus distance by 5-10 fold by using a single lens?
- What type of lens would I need? (What keywords should I be searching for?)
- Where might I get such a lens?
- In the experiment, the focus distance will be fixed.
- I realise that the lens wouldn't plug into the camera, and I'd need to manufacture tiny parts to hold the lens in place accurately.
- I'm not too worried about things like distortion or colour separation, although I would like the image to be in focus.
- The camera needs to be able to see the whole of the object, and so needs most of its 90º field of view.