Need pictures of periscope view from japanese subs

[Hitman]

If someone can provide pictures that show what is seen (Mainly the graded reticle) when looking though the scope of a modern japanese submarine, I'd be most grateful. I suspect that being able to read/write japanese would help a lot doing google searches, but since I can't, I'm asking for help here.

Also if someone knows which periscopes are equipped in those submarines (May be they are foreing brands, like f.e. dutch submarines which equip Kollmorgen units) that would also help.

Thanks