the present invention provides a number of embodiments of toilet seats having features including a means for providing a target for standing urination , general and decorative illumination , self - sanitization , audio annunciation , and fragrance generation . the features may be combined in a number of different combinations and may be powered by batteries housed in a compartment within the toilet seat or by power supplied from the ac mains . a toilet seat is typically a hinged assembly consisting of seat portion and lid portion , the assembly being bolted onto a toilet bowl for a flush toilet . a toilet seat consists of the seat itself , which is typically contoured for the user to sit on , and the lid , which covers the toilet when it is not in use . when the lid is down it can serve as a place to sit while one is cutting toenails , drying ones feet after a bath or shower , etc . the seat is usually lifted during male urination , or when cleaning the toilet . referring first to fig1 a and 1 b , there are shown top , perspective , pictorial , schematic views of a typical toilet seat of the prior art in closed and open orientations , respectively , generally at reference number 100 . toilet seat 100 has a seat portion 102 and a lid portion 104 hingedly joined thereto by hinges 106 . lid portion 104 is therefore rotatable through at least a 90 ° arc as shown by arrow 108 . seat portion 102 has an upper surface 110 adapted to receive the buttocks , not shown , of a user of a toilet , not shown to which toilet seat 100 is attached . a central opening 112 of seat portion 102 allows for seated urination and defecation . lid 104 has an outer surface 114 and an inner surface 116 . referring now to fig2 a , there is shown a top , perspective , pictorial , schematic view of a first embodiment of a toilet seat in accordance with the invention in an open orientation , at reference number 200 . toilet seat 200 incorporates a target illuminating device 202 disposed within lid portion 104 . a transparent window 204 allows an aimed targeting beam 206 to project from targeting device 202 , through window 204 , and into a central portion of a toilet bowl , not shown , onto which toilet seat 200 is attached . it will be recognized that at least two major sizes of toilet seat are manufactured for the united states market . these are generally referred to as “ round ” and “ elongated ” styles . in each style toilet seat , targeting device 202 is aimed slightly differently to accommodate the corresponding size difference of the toilet bowl with which each size toilet seat is used . in the embodiment chosen for purposes of disclosure , targeting device 202 is a laser pointer disposed in an inner region of lid portion 104 . referring now also to fig2 b , there is shown a detailed , side , elevational , schematic view of one embodiment of targeting device 202 . a laser pointer device 208 is affixed to a mounting block 210 . laser pointer device 208 has a major axis that is disposed substantially parallel to the major planes of outer surface 114 and inner surface 116 of lip portion 104 . window 204 is affixed to a hollow portion 212 of lid portion 104 by screws 214 . gaskets 216 , preferably compressed between window 204 and hollow portion 212 of lid portion 104 seal hollow portion 212 when screws 214 are tightened . a mirror 218 on a mirror support 220 is hingedly affixed to mounting block 210 , no hinge mechanism being shown for clarity . a spring 222 disposed between mounting block 210 and mirror support 220 exerts an upward force on mirror 218 on mirror support 220 . a setscrew 224 accessible through a hole 226 in window 202 is disposed to exert an adjustable , opposing downward force on mirror support 220 such that the angle of reflection , not specifically identified , of mirror 218 may be varied to aim targeting beam 206 to a particular location in a toilet bowl , not shown , to which toilet seat 200 is attached . an elastomeric friction plug 228 seals hole 226 after setscrew 224 has been adjusted . it will be recognized that targeting device 202 may be implemented in many other manners . for example , a laser diode and an attached lens , neither shown , could be press fit into a hole in inner surface 116 of lid portion 104 such that a beam therefrom would be directed to a desired spot , not shown , in a toilet bowl , not shown , to which the toilet seat is attached . assuming that the beam from the laser diode and lens is axial , the angle could be readily controlled by the angle of a hole , not shown , in lid portion 104 . it will be recognized that electrical power must be provided to laser pointer 208 and two other light emitting and miscellaneous apparatus discussed in detail herein below . referring now to fig3 , there is shown a simplified electrical block diagram of a first embodiment of an electrical power supply and control system for use with toilet seat 200 , generally at reference number 300 . a so - called “ brick ” power supply 302 is equipped with electrical connector blades 304 to facilitate connecting power supply 302 directly into a standard 110 volt ac electrical outlet , assuming a united states implementation . it will be recognized that blades 304 may be modified for connection to the electrical power grid in other parts of the world . for example , in europe , the connector prongs are round and the supply voltage is typically 220 volts . such modification is believed to be well known to those of skill in the art and is not further discussed herein . however , the invention is not considered limited to the particular plug configuration ( e . g ., blades 304 ) or supply voltage . rather , the invention is intended to include and plug configuration and / or supply voltage . power supply 302 may include an optional ground fault interrupter ( gfi ) 306 because of the proximity of use of electrical power supply 300 to water in the toilet itself or elsewhere in a bathroom in which the toilet is located . a low voltage cable 308 provides low voltage ( i . e ., less than 24 volts dc ) for use in powering the numerous configurations of toilet seats of the present invention . the exact dc output voltage may be selected to be compatible with the various electrical accessories and sub - systems used with different configurations of toilet seat . a first sensor / control 310 is provided to sense a first environmental condition . sensor 310 may be a simple gravity or other switch mechanism , not specifically identified , that activates targeting device 202 whenever toilet lid portion 104 and toilet seat portion 106 are raised . such gravity switches are believed to be well known and , consequently , are not further discussed herein . in more sophisticated implementations , a second , optional sensor 312 may be added in series with first sensor / control 310 . such a second sensor could be chosen from many possible environmental sensors . for example , a room ambient light sensor may be used to only activate targeting device 202 during low ambient light conditions . in other embodiments , optional sensor / control 312 may be an occupancy sensor so that targeting device 202 is activated only when a person is in the vicinity of toilet seat 200 . occupancy sensors are believed to be well known to those of skill in the art and are not further discussed herein . of course any known type of occupancy sensor may be utilized as optional second sensor / control 312 . also , occupancy sensors may contain timers to keep a light or other accessory activated for a predetermined time after occupancy is no longer detected and the invention is seen to include occupancy sensors with or without such timing components . it will be further recognized that the order of first / sensor control 310 and second , optional sensor control 312 may be reversed as long as a series relationship of control is maintained . also , the particular type of sensor ( e . g ., gravity switch , occupancy sensor , pressure switch , etc .) may be assigned to either first sensor / control 310 or optional second sensor control 312 . in alternate embodiments , an external ac power source may be replaced by a battery pack housed either within lid portion 104 or externally thereto . referring now to fig4 , there is shown a side , perspective , schematic view of a toilet 402 having a toilet seat 400 attached thereto . toilet 402 forms no part of the present invention and is included merely to illustrate the environment in which toilet seat 400 is generally utilized . toilet seat 400 has a self - contained battery pack 404 disposed within a lid portion 104 thereof . battery pack 404 may be accessed through access hatch 406 on an inner surface 116 of lid portion 104 of toilet seat 400 . the constructions of such battery packs 404 and access hatches 406 is believed to be well known to those of skill in the art and , consequently no further details are provided herein . it will also be recognized that the exact size and position of battery pack 404 / access hatch 406 may be varied . in addition , access hatch 406 may be provided on upper surface 114 of lid portion 104 , this arrangement not being illustrated in fig4 . as mentioned hereinabove , additional features may be added to a toilet seat . fig4 illustrates two additional features . a plurality of downward - pointing light sources 408 is disposed on a lower surface of seat portion 102 of toilet seat 400 . downward - pointing light sources 408 direct illumination into the bowl 412 of toilet 402 when seat portion 102 of toilet seat 400 is in a downward , horizontal orientation . also shown on toilet seat 400 is a pair of edge light sources 414 attached to an outer edge of lid portion 104 . both plurality of light sources 408 and / or lid edge lights 414 may be controlled by any of the sensor / controller arrangements , some of which are shown in fig3 and others of which are discussed in more detail hereinbelow . referring now also to fig5 a and 5 b , there is shown yet another embodiment of a toilet seat in accordance with the invention , generally at reference number 500 . toilet seat 500 is typically transparent or translucent with a plurality of light sources 502 embedded therein . toilet seat 500 is shown attached to a toilet 402 that forms no part of the invention . interior lights sources 502 are typically leds but may , of course be implemented using alternate technologies . interior light sources 502 may be powered by a power system such as power supply / control 300 ( fig3 ) or battery pack 404 ( fig4 ). interior light sources 502 may be turned on or off using a wide variety of sensors and / or controls , some of which have previously been described . a proximity ( i . e ., an occupancy ) sensor , not shown , may be combined with an ambient light sensors , manual switches , etc . to activate interior light sources 502 as a person approaches toilet 402 / toilet seat 500 . it will be recognized that alternate sensor / control solutions may be known to those of skill in the art . consequently , the invention is not considered limited to the sensor / control options chosen for purposes of disclosure . rather , the invention includes any and all sensor / control systems . edge light sources 414 discussed hereinabove , are also provided on toilet seat 500 . referring now to fig6 a and 6 b , there are shown a side perspective , schematic view of a toilet having an alternate embodiment of a toilet seat 600 in accordance with the invention and a detailed , bottom perspective , schematic view of toilet seat 600 . toilet 402 forms no part of the invention and is included merely to show the intended operating environment of toilet seat 600 . toilet seat 600 has a ring shape light source 602 disposed on lower surface 410 of seat portion 102 substantially completely encircling central opening 112 . a battery pack 502 is shown in lid portion 104 of toilet seat 600 for powering ring light 602 . it will be recognized , however , that ring light 602 may readily be powered by an external power supply / control system 300 as seen in fig3 . ring light 602 shines downward into bowl 412 of toilet 402 . ring light 602 typically consists of a series of led devices arranged in a circular configuration . it will be recognized , however , that light sources other than leds believed to be known to those of skill in the art may be substituted therefor . if ring light 602 is implemented using led devices , not specifically identified , emitting energy in what is considered to be ultraviolet wavelengths , ring light 602 then forms a germicidal device considered potentially useful to controlling bacteria and other microbes within bowel 410 of toilet 402 . for germicidal purposes , it may be desired to externally and continuously power ring light 602 to maximize potential germicidal effects . referring now also to fig7 , there is shown a bottom , perspective , schematic view of an alternate embodiment of a toilet seat with downward directed lighting devices , generally at reference number 700 . toilet seat 700 is similar to toilet seat 600 ( fig6 a , 6 b ) except that ring light 602 is replaced with a plurality of individual down shining lighting devices 702 . down shining lighting devices 702 are disposed at intervals around the perimeter of a lower surface 410 of seat portion 102 . individual down shining lighting devices typically consist of led devices arranged in a circular configuration . it will be recognized , however , that light sources other than leds believed to be known to those of skill in the art may be substituted therefor . if individual down shining lighting devices 702 are implemented using led devices , not specifically identified , emitting energy in what is considered to be ultraviolet wavelengths , individual down shining lighting devices 702 then form a germicidal device considered potentially useful to controlling bacteria and other microbes within bowel 410 of toilet 402 . for germicidal purposes , it may be desired to externally and continuously power individual down shining lighting devices 702 to maximize potential germicidal effects . while several features have been individually disclosed in one or more embodiments of the toilet seats 200 , 400 , 500 , 600 , and 700 , it will be recognized that any logical combination of features may be combined into various configurations . consequently , while specific configurations have been disclosed , numerous combinations and permutations of the disclosed features may be implemented without departing from the invention . since other modifications and changes varied to fit particular operating requirements and environments will be apparent to those skilled in the art , the invention is not considered limited to the example chosen for purposes of disclosure , and covers all changes and modifications which do not constitute departures from the true spirit and scope of this invention . having thus described the invention , what is desired to be protected by letters patent is presented in the subsequently appended claims .
a toilet seat incorporating a laser pointing device for creating a target to increase accuracy during standing urination . several embodiments of decorative and / or functional lighting may also be combined in various embodiments of the toilet seat . power may be supplied from an internal battery pack or , optionally , from an external power supply connected to the power grid . numerous versions of sensors and / or controls may be implemented to switch one or more features on or off depending upon such factors as ambient light levels , the proximity of a person to the toilet seat , etc . in some embodiments , timers may be used to control one or more features . ancillary devices such as audio annunciatiors , audio message generators , and fragrance generators may also be included .