all references cited herein are incorporated by reference to the maximum extent allowable by law . to the extent a reference may not be fully incorporated herein , it is incorporated by reference for background purposes and indicative of the knowledge of one of ordinary skill in the art . in the following detailed description of the preferred embodiments , reference is made to the accompanying drawings which form a part hereof , and in which is shown by way of illustration specific preferred embodiments in which the invention may be practiced . these embodiments are described in sufficient detail to enable those skilled in the art to practice the invention , and it is understood that other embodiments may be utilized and that logical mechanical and electrical changes may be made without departing from the spirit or scope of the invention . to avoid detail not necessary to enable those skilled in the art to practice the invention , the description may omit certain information known to those skilled in the art . the following detailed description is , therefore , not to be taken in a limiting sense , and the scope of the present invention is defined only by the appended claims . referring now to fig1 of the drawings an umbrella lighting system 10 is shown . umbrella lighting system 10 has a solar power system 12 supported by a fixing device 14 . solar power system 12 is in electrical communication with a conductive connection 16 that is in turn in electrical communication with a lighting system 18 . as is clearly shown in this view , fixing device 14 is connected to a lower end of umbrella rib 20 that is in turn supported by center pole 22 , as is typical in patio umbrellas generally . lighting system 18 includes brackets 40 attached to ribs 20 at intervals to support light bulbs 50 along ribs 20 . wires 42 are shown running along a top side of ribs 20 to connect light bulbs 50 to power system 12 . fig2 is a detail of the power system and fixing device of the umbrella lighting system shown in fig1 . power system 12 includes a solar panel 24 and battery 26 . solar panel 24 charges battery 26 during daylight hours and battery 26 powers lighting system 18 when illumination is desired . a switch 28 may be included on power system 12 to control the power going form battery 26 to lighting system 18 . also , a photo resistor 30 may be used to detect ambient lighting and allow power to go from battery 26 to lighting system 18 after dusk . continuing with fig2 fixing device 14 is comprised of an arm 32 and a sleeve 34 . sleeve 34 is placed over the lower end of umbrella rib 20 and secured to umbrella rib 20 by a threaded housing pin 36 attached to a movable hold - down plate 38 . movable hold - down plate 38 allows sleeve 34 to be secured to a variety of different sizes of rib 20 . arm 32 is shaped to position power system 12 above umbrella rib 20 for exposure to sunlight . power system 12 is pivotally attached to arm 32 to allow solar panel 24 to be adjusted for maximum exposure to sunlight . the primary advantage of fixing device 14 is that it may be slid over rib 20 . in a typical arrangement , the umbrella cover may be removed from the tip of a single rib without further disassembly of the umbrella , allowing fixing device 14 to be slid over rib 20 and secured to rib 20 by plate 38 and pin 36 . fig3 is view of another umbrella lighting system 10 having decorative globe light fixtures 44 hanging from the tips of ribs 20 . hooks 48 secure globe light fixtures to ribs 20 . light fixtures 44 include light bulbs 50 and provide for wires 42 to run between light bulb 50 and power system 12 . in the embodiment shown wires 42 run along the tops of ribs 20 . further , in the embodiment shown two power systems 12 are used on ribs 20 . the use of multiple power systems 12 provides for additional power and for improved distribution of weight , since batteries 26 may be heavy depending on the amount of light output desired from bulbs 50 . fig4 is a view of another umbrella lighting system having decorative lantern light fixtures 44 . as above , light fixtures 44 include light bulbs 50 . additionally , wire 42 is shown running from rib 20 to rib 20 from tip to tip along a support wire 46 . in this case wire 42 may be a coiled wire , as shown , to be used on different length ribs 20 . the primary advantage of the present invention is that the system may be adapted to fit a wide variety of umbrellas or may be built for one specific umbrella design . the lighting system can be used with solid pole patio umbrellas without requiring external wiring on the pole because the power system and associated controls are accessible to the user at the lower end of the umbrella rib , yet unobtrusive . further , the power system maybe easily removed for storage or maintenance without disassembling the umbrella . additionally , the lighting system may be offered as a separate add - on for a line of umbrellas with optional lighting designs , thereby allowing the customer to choose an umbrella and lighting combination that meets the customers needs without having to anticipate and provide every possible combination . it should be apparent from the foregoing that an invention having significant advantages has been provided . while the invention is shown in only a few of its forms , it is not just limited but is susceptible to various changes and modifications without departing from the spirit thereof .
a solar power lighting device for use on an umbrella , the lighting device including lights attached to the ribs of the umbrella powered by a solar power system attached to a rib of the umbrella and positioned above the umbrella canopy .