Abstract: The invention concerns a light transforming material, in particular for greenhouse walls, comprising as additive a barium and magnesium silicate of formula Ba3(1-x)Eu3xMg1-yMnySi2O8, wherein 0<x?0.3 and 0<y?0.3and 0<y=0.3. The material is capable of transforming solar energy of UV range into a red light. The material can also be used in paints and cosmetics.

Abstract: The invention concerns a light transforming material, in particular for greenhouse walls, comprising as additive a barium and magnesium silicate of formula Ba; 3(1-x)Eu; 3xMg; 1-yMn; ySi; 2O; (1), wherein 0<x=0.3 and 0<y=0.3. Said material is capable of transforming solar energy of UV range into a red light. Said material can also be used in paints and cosmetics.

Abstract: A method for recording and reproducing a radiation image comprising the steps of (i) causing a visible radiation stimulable phosphor to absorb a high-energy radiation passing through an object, (ii) stimulating said phosphor with visible radiation to release the stored energy as fluorescent light and (iii) detecting said fluorescent light with light detecting means, is characterized by the fact that the photostimulable phosphor is selected within the group of divalent europium activated alkali earth metal halosilicates.Apparatus for recording and reproducing a radiation image using the above described method.Panel for storing a radiation image containing the above described photostimulable phosphors.Phosphors selected within the group of alkali earth metal halosilicates activated with divalent europium in the presence of Al and/or Ga and/or Na and/or K.

Abstract: New luminescent substances are disclosed. They have a monoclinic crystalline structure and are formed of a double borate of magnesium and rare earths having the general formula Ln.sub.1-x Tb.sub.x MgB.sub.5 O.sub.10 in which Ln represents at least one element selected from the group consisting of the lanthanides and yttrium and in which 0<x.ltoreq.1. The luminescent substances can be used in screens or tubes, for example, in low-pressure mercury vapor discharge lamps and plasma panels.

Abstract: Hydrated strontium fluosilicates activated with divalent europium, having the formula:Sr.sub.1-x Eu.sub.x.sup.2+ SiF.sub.6 .multidot.2H.sub.2 Owherein 0<x.ltoreq.0.5, are novel luminophors which emit black light.

Abstract: Luminophors which luminesce in the blue region of the spectrum have the formula:M.sub.5 (1-.alpha.)Eu.sub.5.alpha..sup.2+ SiO.sub.4 X.sub.6wherein M represents Ba.sub.1-.beta. Sr.sub..beta. or Ba.sub.1-.beta. Ca.sub.62, with 0.ltoreq..beta..ltoreq.0.1 and 0.ltoreq..alpha..ltoreq.0.2, and X is Cl.sub.1-.gamma. Br.sub..gamma., with 0.ltoreq..gamma..ltoreq.1.

Abstract: An amorphous cationic conductor of lithium comprising a composition corresponding to the general formula:{B.sub.2 O.sub.3, xM, yN} , aLi.sub.2 O, bLi.sub.z Q 11in which:M is chosen from the group formed by:Al.sub.2 O.sub.3, V.sub.2 O.sub.5, P.sub.2 O.sub.5, As.sub.2 O.sub.5 As.sub.2 O.sub.3 ;N is chosen from the group formed by:SiO.sub.2 and GeO.sub.2 ;Q is chosen from the group formed by halogen anions and bi- or tri-valent mono- or poly-atomic anions exclusive of O.sup.2- ;O.ltoreq.x.ltoreq.0.35;O.ltoreq.y.ltoreq.0.8;O<a.ltoreq.2;O<b<1.5;b.ltoreq.2a; andz=1 or 2 or 3 according to whether Q is mono-, bi- or tri-valent.

Abstract: Novel alkaline earth metal fluosilicates which are activated with divalent europium are disclosed corresponding to the formula:M.sub.1-x Eu.sub.x.sup.2+ Si F.sub.6wherein O < x .ltoreq. 0.2 and M represents at least one alkaline earth metal from the group of barium and srontium. These fluosilicates exhibit luminescent activities emitting sharp line radiation in the near ultraviolet region and are especially suited for producing black light, e.g., within discharge lamps.

Abstract: The invention relates to lamelliform oxides of high ionic conductivity which contain monovalent elements inserted between lamellae of oxides of the type (L.sub.x M.sub.1-x) O.sub.2 wherein L is a trivalent element, M is a tetravalent element and x is a number between 0 and 1. Such oxides are useful as solid electrolytes in electrochemical generators or cells.