High efficiency ejection of light from optical wave guide,...

G - Physics – 02 – B

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G02B 6/34 (2006.01) F21V 8/00 (2006.01) G02B 5/18 (2006.01) G02B 5/32 (2006.01) G02B 6/28 (2006.01) G02B 6/36 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2303823

Radiant electromagnetic energy transmitting apparatus, comprising an elongated body (100) consisting of electromagnetic energy transmitting material, the energy injected into the body to travel therein and to be trapped during the travel by total internal reflecting off walls (101, 102) defined by the body (100), and there being at least one site (107) within the body (100) having variegated surface relief acting to scatter incident radiant energy for ejection from the body as rays defining a selected solid angle.

L'invention concerne un appareil de transmission d'énergie électromagnétique rayonnante. Cet appareil comprend un corps allongé (100) constitué d'un matériau de transmission d'énergie électromagnétique. L'énergie est injectée dans le corps pour s'y déplacer et être piégée pendant sa trajectoire par des parois internes (101, 102) à réflexion totale définies par le corps (100). Au moins un emplacement (107) se trouve à l'intérieur du corps (100) comportant un relief à surface bigarrée permettant de diffuser l'énergie rayonnante incidente destinée à être expulsée du corps comme par exemple les rayons définissant un angle solide sélectionné.

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