Electrodeless lamp with sealed ceramic reflecting housing

Details Electrodeless lamp with sealed ceramic reflecting housing Electrodeless lamp with sealed ceramic reflecting housing

H - Electricity

01

J

H01J 61/30 (2006.01) H01J 61/32 (2006.01) H01J 61/34 (2006.01) H01J 61/36 (2006.01) H01J 65/04 (2006.01)

Patent

CA 2273872

An electrodeless lamp (10) for producing an intense beam of light includes a concave lamp body (11) that surrounds the lamp interior. A gas, such as sulfur or selenium or compounds thereof, is contained within the lamp body (11) for forming a plasma light source. The concave lamp body (11) has a reflecting surface (12). Electrodes (27, 28) are disposed external to the lamp body for producing radio frequency energy for exciting the gas. A heat resistant glass plate (20) seals the concave lamp body (11). A frit seal (23) can be used for forming a pressure and temperature resistant seal between the concave lamp body (11) and the glass plate (20). The light beam generated by the plasma exists through the glass plate (20).

L'invention porte sur une lampe sans électrode (10) produisant un faisceau intense de lumière comportant un corps concave (11) de lampe entourant l'intérieur de la lampe. Un gaz, par exemple du soufre, du sélénium ou un de leurs composés remplissant le corps (11) de la lampe constitue la source de plasma lumineux. Le corps concave (11) de lampe comporte une surface réflectrice (12). Des électrodes (27, 28) placées à l'extérieur du corps de la lampe produisent de l'énergie à haute fréquence excitant le gaz. Une plaque de verre thermorésistant (20) ferme le corps concave (11) de lampe. On peut utiliser un joint de fritte (23) comme joint résistant à la pression et à la chaleur entre le corps concave (11) de lampe et la plaque de verre (20). Le faisceau de lumière produit par le plasma sort par la plaque de verre (20).

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