fig2 depicts a fencing weapon from the view of the weapon blade extending out of the plane of fig2 toward the observer . in the present example , fig2 depicts a weapon 12 . weapon 12 includes a blade 16 , a handle ( not shown ), and a guard 46 . blade 16 is conductive , frequently made of steel or any other metal or metal alloy known to one of skill in the art . blade 16 can also be made from plastic or foam or any other substance , especially when configured for use as practice weapons , or as toys . guard 46 is made of an opaque substance such as metal or plastic or any other substance known in the art . guard 46 contains a pattern of individual apertures 47 . apertures 47 allow visible light to pass through guard such that emitted light beneath the apertures 47 will be visible to one observing guard 46 from its front surface ( i . e ., the portion of guard 46 on the same side as blade 16 ). guard 46 can be electrically grounded or otherwise undetectable when contacted by an opponent &# 39 ; s weapon . apertures 47 can be small enough to prevent false connections from being detected by an opponent &# 39 ; s weapon tip or blade . additionally , apertures 47 can be filled wholly or in part with a substance that will be sense - invisible to an opponent &# 39 ; s weapon but still allow transmission of visible light . an example of such a substance is wire mesh . guard 46 can contain a single aperture 47 or any number of apertures 47 . apertures 47 can be configured in any pattern , for example , in a pattern which optimizes visibility transmitted light while maintaining the sense - invisibility of guard 46 to an opponent &# 39 ; s weapon . additionally apertures 47 can be configured in a pattern unique to a particular fencer to further allow for personalization and to prevent confusion between weapons . apertures 47 can extend to the edge of guard 46 and partial apertures such as aperture 48 can also extend to the edge of guard 46 . fig3 depicts a foil or epee 12 along plane a - a in fig2 . foil or epee 12 contains blade portion 20 and tip portion 16 which , when depressed on an opponent &# 39 ; s target area causes a signal to be sent to at least one indicator light 55 . guard 46 is held in place between blade 20 and handle 61 by affixing mechanism 60 . affixing mechanism 60 can be , for example , a screw terminal of blade portion 20 which screws into a socket within handle 61 . when indicator light 55 illuminates it produces light which diffusion layer 51 diffuses such that it is visible through at least aperture 47 . diffusion layer 51 can also be configured to diffuse light from indicator light 55 through multiple apertures , i . e ., 47 and 49 . diffusion layer 51 can be composed of , for example , a translucent plastic material or any other material known in the art which allows for diffusion or other transmission of visible light . alternatively indicator lights 55 , 56 , and 57 are individually addressable different colored light emitting diodes ( leds ) and can be configured in an array to deliver a variety of colors of visible light when activated . further , a second array of leds 58 can also be individually addressed such that when activated , a first color can be produced by the array of indicator lights 55 , 56 , 57 and a second color can be produced by array 58 . diffusion layer 51 can also be configured or composed of materials which allow array 58 to deliver a first color of visible light to aperture 49 and indicator lights 55 , 56 , 57 can deliver a second color of visible light to aperture 47 and / or 48 . indicator control mechanism 62 connects to indicator lights 55 , 56 , 57 and array 58 by an electrical / signaling connection 63 . indicator control mechanism 62 can include a power source for providing power over electrical / signaling connection 63 . alternatively indicator control mechanism 62 can be powered by connector 64 connected to wire 65 which draws power and / or receives signal information from a source external to foil or epee 12 . when indicator control mechanism 62 either generates a signal or relays a signal from connector 64 , it provides power to at least one of indicator lights 55 , 56 , 57 and array 58 . indicator control mechanism 62 can also provide a signal containing control information which directs at least one of indicator lights 55 , 56 , 57 , and array 58 to emit light , at a particular brightness , color , frequency , and illumination time . alternatively indicator lights 55 , 56 , 57 can be situated within an led package ( not shown ), such as a semiconductor package with a control driver and color programming included . indicator lights 55 , 56 , 57 , array 58 , diffusion layer 51 , and indicator control mechanism 62 components are protected from damage by covered 53 . cover 53 can be formed of a pad made from a material which is substantially malleable to protect the aforementioned components . alternatively , cover 53 can be formed from a packaging material which substantially encapsulates the aforementioned components or completely envelops them , such as a hard plastic material so that indicator lights 55 , 56 , 57 , array 58 , diffusion layer 51 , indicator control mechanism 62 and diffusion layer 51 form a single package . further , diffusion layer can include a reflective surface disposed oppose guard 46 which aids in reflecting light from at least one indicator lights 55 , 56 , 57 and array 58 toward at least one of apertures 47 , 48 , and 49 . fig4 depicts a configuration of foil or epee 12 as in fig3 , except that raised portion 71 of diffusion layer 51 extends at least partially into aperture 49 to allow guard 46 , aperture 49 and raised portion 71 of diffusion layer 51 to have a substantially planar surface . this may further be useful to prevent ridges from apertures from causing damage to an opponent &# 39 ; s weapon or for causing contacts to fail to ground properly on guard 46 . it may further allow better visibility of diffused light emitted beyond guard 46 . alternatively , raised portion 71 may be composed of a different material than diffusion layer 51 . the material may be selected to permits the transmittance of at least some visible light from diffusion layer 51 and at least partially fill aperture 49 to , for example , better protect diffusion layer 51 from impact , allow conductance across guard 46 for grounding purposes , or to magnify or enhance diffused light from diffusion layer 51 . fig5 depicts a saber 12 along plane a - a in fig2 . saber 12 contains blade portion 20 which , when contacting on an opponent &# 39 ; s target area causes a signal to be sent to at least one indicator light 55 . guard 46 includes a parabolic extension portion which protects a fencer &# 39 ; s hand along the distance of handle 61 . guard 46 in a saber configuration of fig5 can include an aperture 81 at a location along the extension portion and diffusion layer 51 can extend such that light from array 58 or indicator lights 55 , 56 , 57 may be visible through aperture 81 . the examples in fig2 - 5 can be applied to other sporting equipment as well , including , for example tennis rackets , baseball bats , hockey sticks , golf clubs , etc . such a piece of sporting equipment will have the same at least one aperture , light diffusing portion , and integrated illumination device as in the guard 46 in fig3 and can contain an array composed of multiple apertures in a portion as depicted in fig2 . such lights can provide integrated indicator light feedback to a competitor , an opponent , a teammate , or a spectator to allow for better scoring , training , game play , visibility , and appreciation of the sport . fig6 depicts a tennis racket 600 with a handle 601 , a racket frame 602 , and strings 603 . racket frame 602 includes apertures 49 with diffusion portions 51 for diffusing illumination from an integrated indicator illumination device ( not shown ) which can be , for example , contained within racket frame 602 or handle 601 . alternatively , strings 603 can be diffusion portions 51 such that integrated indicator illumination device can cause strings 603 to diffuse and light so that strings 603 provide indication of an event such as topspin , swing speed , ball contact with a particular portion of racket 600 , etc . the invention of fig6 an also apply to squash rackets , racketball rackets , table tennis paddles , badminton rackets , etc . fig7 depicts a golf club 700 having a handle portion 701 , a shaft 702 , and a club head 703 for striking a golf ball ( i . e ., effectuating portion ). shaft 702 can contain apertures 49 containing diffusion portions 51 such that integrated indicator illumination device ( not shown ) provides indication of an event such as topspin , swing speed , ball contact with a particular portion of club head 703 , etc . the invention of fig7 can also apply to hockey sticks , baseball bats and other sporting equipment used for striking a target . while the invention has been shown and described with reference to certain exemplary embodiments thereof , it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents .
a fencing weapon or piece of sporting equipment includes a diffused indictor light visible through at least one aperture . for the sport of fencing the diffused indictor light can signal valid and invalid touches . sports equipment benefits in particular from this diffused indictor light configuration to provide instantaneous feedback to the bearer of such equipment , their teammates and competitors , and viewers of play involving such equipment .