How to understand the specs written on camera lenses

Hello,
I have a camera lens that is connected to my Pulnix frame grabber. On the camera lens, there are a few things written, that i dont understand. Can anyone explain what these writings tell?
On the lens, it is written
35mm 1:2 C 2/3" M 2.25 Japan (Line 1)
0.25-->8(infinity) M (Line 2)
Please anyone explain what each number is trying to tell. Thanks in advance.

Usman & Fabiosiemens,
The '2/3' means that the lens can work with cameras having a max 2/3" CCD.
If the last marking on the first line says 'M22.5,' this would refer to the filter threading on the lens. However, M 2.25 is a spec that is unfamiliar to me.
Hope this info helps. If you have futher questions about video lenses or related optics, you may wish to check out the technical support pages at www.edmundoptics.com/techsupport/

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