Tent – canopy – umbrella – or cane – Umbrella – Cover or lining feature
Patent
1997-05-07
1999-02-02
Mai, Lanna
Tent, canopy, umbrella, or cane
Umbrella
Cover or lining feature
135910, 135 3341, 362102, A45B 2518
Patent
active
058652027
ABSTRACT:
The luminous umbrella of the present invention uses a high proportion of the light generated by mounting the light bulb high on the shaft such that most of the light from the light bulb is projected on the undersurface of the umbrella canopy The undersurface has a high luminous reflectance and is curved, consequently focusing the light from the light bulb down to illuminate a space immediately around the user. This luminous space widens towards the bottom, thereby providing the widest illumination at the ground where it is most needed. As a result of the light being efficiently focussed, the required luminosity of the light bulb is reduced, enabling the umbrella to be powered using an incandescent light bulb and a few 1.5 volt batteries. Alternatively, if it is desired to provide extremely bright illumination, the conventional incandescent bulb may be replaced with a halogen bulb. The batteries still suffice to provide bright illumination by the halogen bulb.
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Barrigar Robert H.
Mai Lanna
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