Patent Number: 
Section: claims

1. A luminescent substance with the general formulaXZO4 X stands for Sca Yb Lac Ced Pre Ndf Smg Euh Gdi Tbk Dyl Hom Ern Tmo Ybp Luq Sb(III)r Bis Crt Mn(III)u Fe(III)v [Baw Fe(II)y Caz Sn(II)α Srβ Coγ Niδ Cuε]3/2 [Naη Kλ]3 [U(IV)μ Pbπ Thσ]3/4 U(VI)φ/2 andZ stands for Nbza Tazb Vzc Pzd [Tize Zrzf Sn(IV)zg]5/4 Wzhs/6 Fe(III)zis/3 anda+b+c+d+e+f+g+h+i+k+l+m+n+o+p+q+r+s+t+u+v+3/2(w+x+y+z+α+β+γ+δ+ε)+3(η+λ)+3/4(μ+π+σ)+φ/2=1, anda, b, c, d, e, f, g, h, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, α, β, γ, δ, ε, η, λ, μ, π, σ and φ each range from 0 to 1, andza+zb+zc+zd+5/4 (ze+zf+zg)+5/6zh+5/3zi=1, andza, zb, zc, zd, ze, zf, zg, zh and zi each range from 0 to 1, and further wherein m≠0 and/or n≠0 and/or f≠0. 2. A luminescent substance according to claim 1, wherein b≠0 and/or c≠0 and/or k≠0 and/or o≠0. 3. A luminescent substance according to claim 1, wherein b+c=1 and 0<b<1 and 0<c<1. 4. A luminescent substance according to claim 1, wherein c=1 or b=1. 5. A luminescent substance according to claim 1, whereinX stands for Yb Lac Pre Ndf Dyl Hom Ern Ybp Crt Mn(III)u Fe(III)v [Mn(II)x Fe(II)y Coγ Niδ Cuε]3/2, andb+c+e+f+l+m+n+p+t+u+v+3/2(x+y+γ+δ+ε)=1, andb, c, e, f, l, m, n, p, t, u, v, x, y, γ, δ, ε each range from 0 to 1 andwherein at least one of f, m, n, and p is >0. 6. A luminescent substance according to claim 1, wherein c≠0 and/or d≠0 and/or e≠0 and/or g≠0 and/or h≠0 and/or i≠0 and/or k# 0 and/or l≠0 and/or o≠0 and/or q≠0. 7. A luminescent substance according to claim 1, wherein (n≠0 and p≠0) or (f≠0 and p≠0) or (n≠0 and f≠0). 8. A luminescent substance according to claim 1, wherein if m≠0 or n≠0 or p≠0, then it holds that e≠0 and/or l≠0 and/or f≠0 and/or t≠0 and/or u≠0 and/or v≠0 and/or x≠0 and/or y≠0 and/or γ≠0 and/or δ≠0 and/or ε≠0. 9. A luminescent substance according to claim 1, wherein if f≠0, then it holds that e≠0 and/or l≠0 and/or t≠0 and/or u≠0 and/or v≠0 and/or x≠0 and/or y≠0 and/or γ≠0 and/or δ≠0 and/or ε≠0. 10. A luminescent substance according to claim 1, wherein X stands for Yb Lac Pre Ndf Ern Ybp Fe(III)v, andb+c+e+f+n+p+v=1, andb, c, e, f, n, p and v each range from 0 to 1, andwherein at least one of f, n, and p>0. 11. A luminescent substance according to claim 1, wherein X stands for Yb Ybp Pre, b+e+p=1, and wherein b and e range from 0 to 1 and 0<p<1. 12. A luminescent substance according to claim 1, wherein X stands for Yb Ndf Fe(III)v, b+v+f=1, and wherein b and v range from 0 to 1 and 0<f<1. 13. A luminescent substance according to claim 1, wherein X stands for Yb Ern, b+n=1, and wherein b ranges from 0 to 1 and 0<n<1. 14. A luminescent substance according to claim 1, wherein X stands for Yb Ndf Ern, b+f+n=1, and wherein b, f and n each range from 0 to 1, wherein at least one of f and n is 0. 15. A luminescent substance according to claim 1, wherein X stands for Yb Ybp Ndf, b+p+f=1, and wherein b, p and f each range from 0 to 1, wherein at least one off and p is >0. 16. A luminescent substance according to claim 1, wherein X stands for Yb Ndf, b+f=1, and b ranges from 0 to 1 and 0<f<1. 17. A luminescent substance according to claim 1, wherein X stands for Yb Ybp, b+p=1, and b ranges from 0 to 1 and 0<p<1. 18. A luminescent substance according to claim 1, wherein the luminescent substance is additionally doped with Al and/or Mg and/or Cr. 19. A luminescent substance according to claim 1, wherein the luminescent substance is additionally doped with (Al and Mg) or (aluminum and Cr). 20. A luminescent substance according to claim 1, wherein za≠0 and/or zb≠0 and/or ze≠0 and/or zh≠0. 21. A luminescent substance according to claim 1, wherein Z stands for Nbza Tazb Pzd, za+zb+zd=1, and 0<za<1, 0<zb<1 and 0<zd<1. 22. A luminescent substance according to claim 1, wherein Z stands for Nbza Tazb, za+zb=1, and 0<za<1 and 0<zb<1. 23. A luminescent substance according to claim 1, wherein Z stands for Nb with za=1 or Ta with zb=1 or P with zd=1. 24. A security element comprising a luminescent substance according to claim 1. 25. A security element according to claim 24, wherein the security element has the form of a strip or band. 26. A security element according to claim 24, wherein the security element is formed as a security thread, planchet or mottling fiber. 27. A security element according to claim 24, wherein the security element is formed as a label. 28. A security element according to claim 24, wherein the at least one luminescent substance is embedded into a supporting material of the security element or applied to the supporting material. 29. A test method for checking the authenticity of a security element according to claim 24, comprising evaluating the wavelengths and/or number and/or the form and/or the intensities of the emission lines and/or the excitation bands of the luminescent substances. 30. A test method for checking the authenticity of a security element according to claim 24, wherein the lifetimes of luminescence of the luminescent substances are evaluated. 31. A security paper comprising a luminescent substance according to claim 1. 32. A value document comprising a luminescent substance according to claim 1. 33. A value document according to claim 32, wherein the value document comprises paper or plastic. 34. A value document according to claim 32, wherein the luminescent substance is incorporated into the volume of the value document or present in a layer applied to the value document. 35. A value document according to claim 32, wherein the luminescent substance is provided as an invisible coating at least partly covering the surface of the value document. 36. A value document according to claim 32, wherein the luminescent substance is admixed to a printing ink. 37. A value document according to claim 32, wherein the coating has the form of one or more strips. 38. A value document according to claim 32 wherein the luminescent substance is present as pigment particles. 39. A method for producing a value document according to claim 32, wherein the luminescent substance is added to a printing ink. 40. A method for producing a value document according to claim 32, wherein the luminescent substance is applied by a coating process. 41. A method for producing a value document according to claim 32, wherein the luminescent substance is incorporated into the volume of the value document. 42. A method for producing a value document according to claim 32, wherein the luminescent substance is supplied to the value document by accordingly prepared mottling fibers. 43. A method for producing a value document according to claim 32, wherein the luminescent substance is supplied to the value document by an accordingly prepared security thread. 44. A test method for checking the authenticity of a value document according to claim 32, comprising evaluating the wavelengths and/or number and/or the form and/or the intensities of the emission lines and/or the excitation bands of the luminescent substances. 45. A test method for checking the authenticity of a value document or security element according to claim 44, wherein the emission lines and/or excitation bands represent a coding. 46. A test method for checking the authenticity of a value document according to claim 32, wherein the lifetimes of luminescence of the luminescent substances are evaluated.