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ET SES FILS
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Publication of FR5629EpublicationCriticalpatent/FR5629E/fr
F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
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FR5629D1905-03-021905-03-22Préparation de compositions éclairantes pour la photographie à la lumière artificielle
ExpiredFR5629E
(fr)
Procédé de production de nouvelles préparations sensibles à la lumière, convenant pour la photographie, ainsi que d'images fixes à la lumière, à l'aide de celles-ci