Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED

A phosphor comprising the main production phase of the phosphor expressed by the composition formula of MmAaBbOoNn:Zz (where an element M is one or more bivalent elements, an element A is one or more trivalent elements, an element B is one or more tetravalent elements, O is oxygen, N is nitrogen, an element Z is an activator, n=2/3m+a+4/3b−2/3o, m/(a+b)≧1/2,(o+n)/(a+b)>4/3, and none of m, a, b, o, n is equal to 0),

• said phosphor including said oxygen by 3 wt % or less with respect to a mass of the main production phase of the phosphor.

A phosphor comprising 24 wt % to 30 wt % of Ca (calcium), 17 wt % to 21 wt % of Al (aluminum), 18 wt % to 22 wt % of Si (silicon), 1 wt % to 15 wt % of oxygen, 15 wt % to 33 wt % of nitrogen and 0.01 wt % to 10 wt % of Eu (europium),

• wherein an emission maximum in an emission spectrum is in a range of 600 nm to 660 nm;
• and
• wherein color chromaticity x of light emission is in a range of 0.5 to 0.7, and color chromaticity y of the light emission is in a range of 0.3 to 0.5.