Abstract: The flame arrester has an elongated body having at least one sidewall and axially-opposed first and second ends. The at least one sidewall includes a plurality of ribs spaced apart from one another such that adjacent ones of the plurality of ribs define slots therebetween. Each rib has rounded side edges to minimize shear and turbulent flow through the slots. The slots are in open fluid communication with the hollow interior of the elongated body. The first end of the elongated body is open to allow insertion of a fuel dispensing nozzle or the like. The second end of the elongated body may be closed, or releasably covered and sealed by a valve mounted on the elongated body. Alternatively, the second end may be porous or have slots or flow passages formed therethrough.

Abstract: A suppression unit includes a nozzle, a casing, and a biasing device. The nozzle includes an exterior surface, an interior bore extending along a longitudinal axis, and a plurality of discharge orifices passing from the interior bore to the exterior surface. The casing includes an interior surface and an exterior surface. The nozzle is disposed within the casing. The discharge orifices are covered by the casing in a biased passive condition of the nozzle, and the discharge orifices are moved longitudinally out of the casing in an active condition of the nozzle. The biasing device is disposed in a spring chamber between the nozzle and the casing. The spring chamber is fluidically isolated from the nozzle in the active and passive conditions.

Abstract: The invention relates to a sprinkler housing (50) for a sprinkler (1), in particular for operating pressures above 16 bar, comprising a fluid channel (12) which is provided in the sprinkler housing (50) and has a fluid inlet (10) and at least one fluid outlet (8), a closure element (4), which is movable from a blocking position into a release position in a release direction (A), wherein the closure element (4) closes the fluid channel (12) in the blocking position and releases same in the release position, a sealing element (5), which is mounted on the closure element (4) and is designed to close the fluid channel (12) in a fluid-tight manner in the blocking position. According to the invention, it is proposed that the sprinkler housing (50) has a recess (17), through which the closure element (4) extends at least in the release position, wherein a protective chamber in which the sealing element (5) is arranged is defined between the closure element (4) and the recess (17) in the release position.

Abstract: A trampoline includes a trampoline frame including a trampoline frame ring supported by a trampoline frame. A trampoline bed is supported across the trampoline frame. The trampoline frame is foldable. Enclosure poles are oriented in a vertical orientation when the enclosure poles are in a deployed position. One or more hinge joints connect the enclosure poles to the trampoline frame. The enclosure poles are mounted to the trampoline frame ring at the hinge joints. The enclosure poles fold inward to a horizontal position when the enclosure poles fold to a folded position. The enclosure poles may overlap each other when folding to the folded position.

Abstract: A barbell collar. The barbell collar may have a plate and at least two weight bars, a first weight bar and a second weight bar. The plate may comprise a barbell engagement portion, a heavy arm and a light arm. The heavy arm weighs more than said light arm. The barbell engagement portion is configured to engage with a barbell. Each of the at least two weight bars may be attached to each of the at least two arm portions of the plate. The at least two weight bars may be adapted to engage and hold one or more weights.

Abstract: A selectorized dumbbell has a plurality of nested weights that provide a stack of left weight plates and a stack of right weight plates. A handle is dropped between the stacks and a selector is inserted into one of a plurality of vertically spaced positions on the handle to couple a selected number of the weights to the handle. The selector has a continuous periphery enclosing an open interior. A user who is exercising with the dumbbell will be alerted to unintended dislodgement of the selector since a portion of the selector's periphery will contact a portion of the user's grip hand, wrist or forearm during such dislodgement. This prevents complete dislodgement and prompts the user to restore the selector to a fully installed position. Side walls of the selector may become curved when the selector is installed to provide an additional frictional force resisting dislodgement of the selector.

Abstract: Apparatuses and systems associated with bench press equipment are disclosed herein. In embodiments, a bench press apparatus may include a bench with a bar rack structure. The bar rack structure may include a first side structure located on a first side of the bench and a second side structure located on a second side of the bench, the first side of the bench being opposite to the second side of the bench. A connection structure may couple the first side structure to the second side structure and provide rigidity between the first side structure and the second side structure. The bench press apparatus may further include a platform located between the bench and a surface. The platform may extend along an end of the bench and at least a portion of the first side and the second side of the bench. Other embodiments may be described and/or claimed.

Abstract: Embodiments are directed to an exercise equipment apparatus. The apparatus may comprise a lateral crossbeam, a first upward support member, and a first longitudinal support member. The first upward support member may have a proximal end portion and a distal end portion. The first upward support member may couple to the crossbeam. The first longitudinal support member may have two end portions. The first longitudinal support member may separably couple to the distal end portion of the first upward support member. Each of the two end portions of the first longitudinal support member may be sized and dimensioned to receive one or more weight plates and facilitate use of the first longitudinal support member as a weight-lifting bar when separated from the distal end portion of the first upward support member.

Abstract: An adjustable weight lifting bench includes a frame, a seat pad, and a back pad. The back pad is pivotably coupled to the frame about a first pivot axis and angularly adjustable between a plurality of user-selectable incline and decline positions. A hydraulic mechanism supports the back pad in the incline and decline positions. A movable operating lever operably coupled to the hydraulic mechanism operates to change the mechanism between an activated condition in which the back pad is movable and a deactivated condition in which the back pad locks into a selected one of the positions. When the mechanism is in activated condition, applying pressure against the back pad the lowers the back pad and removing the pressure raises the back pad. In one embodiment, the mechanism automatically raises the back pad when the pressure is removed and the mechanism is in the deactivated condition.

Abstract: A hand therapy kit includes a housing having a lid that is expandable from a folded position to an unfolded position to expose a working surface on an inside of the lid. An elastic cord is attached at two or more anchor points on the working surface to define at least one gap for receiving a finger. The finger can be therapeutically exercised by moving from a first position proximal to the working surface to a second position distal to the working surface. The hand therapy kit can also include removable hand therapy modules, including a therapeutic tracking glove and/or a pressure sensor ball.

Abstract: A breathing mask has a mask body covering the mouth and nose, which may form an air inlet and an air outlet provided with a check valve. The air inlet may have a rotary slide valve in a seat which has at least one air inlet opening surrounding the central air outlet in sections. The rotary slide valve may cover the air inlet opening differently depending on its rotational position. The check valve for the air outlet may have a centrally-held membrane which covers an air outlet opening. The air outlet may form a guide cylinder for the rotary slide valve. The rotary slide valve may form the air outlet opening covered by the membrane.

Abstract: The present invention includes a device for hypoxia training including a breathable gas source; a mask in fluid communication with the breathable gas source; a mask-state detector that uses one or more criteria to determine if the mask is being worn by a subject, wherein the mask-state detector is capable of communicating an indication of a mask-off state or a mask-on state; a flowmeter in fluid communication with the mask and coupled to the mask-state detector; and a pressure regulator in fluid communication with the mask and with the breathable gas source, and coupled to the mask-state detector, wherein the pressure regulator sets a first pressure at the mask when the mask-state detector communicates an indication of a mask-off state or a second pressure at the mask when the mask-state detector communicates an indication of a mask-on state.

Abstract: Wearable apparatuses and methods for using reinforced neurofeedback for sports training are disclosed. Embodiments of such wearable apparatuses are configured to be worn at or near a user's joint to monitor the joint position. An embodiment may comprise a processor, a computer-readable medium, a sensor, an IO component, a battery, a timer, a signaling component, and a flexible printed circuit. The computer-readable medium of this embodiment may be configured to store at least one optimal range of joint position and/or a sequence of timed optimal ranges of joint positions for a specific sport. In this embodiment, the sensor continuously detects the joint position, and once the processor determines that the joint position falls outside the optimal range of joint position, it activates the signaling component to send a feedback signal so that the user may immediately make correction.

Abstract: A method for identifying and correcting muscular and skeletal disbalances through exercise includes recording, by a processor, using at least one sensor coupled to the processor, an exercise motion performed by a user, identifying, by the processor, a motion deficiency of the user based on the detected exercise motion, formulating, by the processor, a corrective motion based on the detected motion deficiency, and providing, by the processor, the corrective motion to the user, which also includes identifying motion deficiencies as far as range of motion, balance, symmetry, smoothness, strength, stamina and other motion characteristics, formulating corrective exercise program that involves multiple training machines, formulating exercises in terms of number of repetitions, cadence (frequency) or motion, range of motion, added resistance levels, communicating the corrective exercise program via the screen embedded on each machine, and guiding the user through each exercise, directing user to change exercise mach

Abstract: The present disclosure provides a smart walking recommendation apparatus and a corresponding method, the apparatus includes an information obtaining module configured to obtain destination information and appointed arrival time information, a positioning module configured to obtain a start position of a user, a central processing module configured to calculate a distance from the start position to a destination based on the start position and the destination information, and determine whether to recommended walking based on the distance from the start position to the destination, an empirical speed, and the appointed arrival time information, and an output module configured output a walking recommendation to the user in response to determining to recommend walking.

Abstract: A sport ball comprising having a plurality of panels, each of the panels having an uncompressed center thickness and a compressed outer edge surrounding the uncompressed center thickness, the panels being stitched together along the respective compressed outer edges to form a shape, an inner bladder within said shape. The sport ball of claim 1, wherein said compressed outer edge is compressed by a factor of between one-quarter and three-quarters of said uncompressed center thickness. The compressed outer edge may be compressed approximately one-half of the uncompressed center thickness. The compressed outer edge may be compressed a width approximately equal to the uncompressed center thickness. Methods of forming the sport ball are also disclosed.

Abstract: The present invention provides a method of manufacturing a golf ball having a cover with network structure which includes the steps of forming a core layer and forming a cover layer to enclose the core layer. The method characterized in that the cover layer forming step includes the steps of: mixing 90 wt % of a Surlyn resin with 10 wt % of a whisker reinforced material to form a whisker composition; mixing the whisker composition with another Surlyn resin to form a cover layer material, wherein the content of the whisker composition is between 0.1 and 10 phr on the basis of 100 phr of the another Surlyn resin; and injecting the cover layer material to form the cover layer with a whisker-based three-dimensional network structure. The golf ball, after being shot, can achieve both a long flight distance and a greater amount of backspin.

Abstract: A golf club set 2 includes three or more golf clubs. A straight line passing through a face center Fc and parallel to a toe-heel direction is defined as an X-axis, and an X-coordinate of a sweet spot SS is defined as SS-X. When the SS-Xs of respective heads are defined as SS-X1, SS-X2, . . . , SS-Xn (n is an integer of equal to or greater than 3) in an ascending order of a loft angle from the head having the smallest loft angle, the set 2 satisfies the following formulas 1 and 2: SS-X1?SS-X2? . . . ?SS-Xn??(Formula 1); SS-X1>SS-Xn??(Formula 2).

Abstract: A head 2 includes a face member fc1 formed by casting and a body member bd1 having an opening 20 on a hitting surface 4 side. The opening of the body member bd1 is covered by the face member fc1. The face member fc1 includes a flat plate portion PT forming the hitting surface 4 and a flange FL extending backward from a peripheral edge of the flat plate portion PT. The flange FL includes a first flange FL1 located in a top-side region, and a second flange FL2 located in a sole-side region. The flange FL is not provided in a toe-side region and a heel-side region. The flange FL is joined to the body member bd1.

Abstract: A golf club head according to the present invention includes a face portion, a crown portion and a sole portion, the crown portion including a first region extending in a toe-heel direction along at least part of the face portion, a second region arranged further on a back side than the first region, a step region extending in the toe-heel direction between the first region and the second region and extending downward toward the second region from the first region side, and at least one rib formed on an inner wall surface of the crown portion and extending in a face-back direction from at least the step region to the second region.

Abstract: A golf club head according to the present invention includes a face portion, a crown portion and a sole portion, the sole portion including a toe-side recessed portion arranged on a toe side, a heel-side recessed portion arranged on a heel side, and a middle recessed portion arranged between the toe-side recessed portion and the heel-side recessed portion, and at least one readily deformable portion that extends linearly in a toe-heel direction is formed in the toe-side recessed portion and the heel-side recessed portion.

Abstract: This golf club head includes a face portion, a crown portion and a sole portion, the crown portion including a first region extending along at least part of the face portion, a second region arranged further on a back side than the first region, and a step region extending in the toe-heel direction between the first and the second regions and extending downward toward the second region from the first region side, the first region being formed to at least extend from a position Ph that is 20 mm on a heel side to a position Pt that is 25 mm on a toe side, based on a face center, and a width Dh of the first region in a face-back direction at the position Ph and a width Dt of the first region in the face-back direction at the position Pt satisfying 1<(Dt/Dh)?1.35.

Abstract: A hollow golf club head comprises a face part having a face for striking a ball, and a main body extending rearward from the face part. The main body is provided with a low-rigidity zone which comprises through holes and connecting portions arranged alternately along a peripheral edge of the face. The through holes penetrate the main body from the outside to the inside of the main body. The connecting portions extend in the front-back direction of the head, and include an oblique connecting portion comprising an oblique part inclined with respect to the front-back direction.

Abstract: A computer program is disclosed for reconfiguring a property-adjustable golf club. The program receives data input corresponding to a current configuration of an adjustable feature of the golf club, and data input corresponding to trajectory adjustment information. Based on the data input, reconfiguration information is generated, and outputted, that corresponds to one of a plurality of configurations of the adjustable feature of the golf club.

Abstract: Iron-type golf club heads are disclosed having a heel portion, a sole portion, a toe portion, a top-line portion, a front portion, a rear portion, and a striking face. The iron-type golf club heads include a localized stiffened region that is located on the striking face of the club head such that the localized stiffened region alters the launch conditions of golf balls struck by the club head in a way that wholly or partially compensates for, overcomes, or prevents the occurrence of a rightward deviation. In particular, the localized stiffened region is located on the striking face such that a golf ball struck under typical conditions will not impart a right-tending sidespin to the golf ball.

Abstract: A lightweight compression molded multicolor golf grip having at least a first section and a second section of differing colors and composed of elastomer compounds having a density of less than 0.90 g/cc, and joined by cross-linking across a sharply defined cross-color interface having an interface transition zone beyond which there is no mixing of the colors. The grip has a soft feel and unique compression characteristics achieved in some embodiments through the controlled use of an expanding blowing agent in a rubber compound including an EPDM mixture. Achieving the sharply defined cross-color interface is due in part to the use of complementary geometries at opposing interface edges to increase the stability of the interface and reduce the flow during molding associated with the increased viscosity of low density rubber compounds, promote cross-linking of the sections, and better distribute and control the consolidation pressure.

Abstract: Various devices for reconditioning golf tees are disclosed herein.

Abstract: A golf tee has a contact alert material encapsulated therein. The golf tee includes a top portion with top, side and bottom walls fixedly attached to a shaft that terminates into a point appointed to be inserted into a ground surface. A cavity is formed between the top, side and bottom walls of the top portion. A contact alert material is encapsulated within the cavity and is composed of a combustible material that generates a spark on impact. The contact alert material is appointed to generate the spark during a golf swing when a golf club strikes the ball and the side walls. The alert is provided immediately as instantaneous feedback during the golf swing adapted to thereby improve muscle memory required to reliably replicate a proper golf swing.

Abstract: A slip-proof grip sleeve includes a lining tube and a slip-proof strip mounted on an outer periphery of the lining tube. The slip-proof strip includes a gripping portion between front and rear ends thereof. The slip-proof strip further includes a first folding portion adjacent to the rear end and a second folding portion adjacent to the gripping portion. The first and second folding portions are thinner than a thickness of the gripping portion. The first folding portion is folded toward an inner face of the slip-proof strip to overlap with the second folding portion. The slip-proof strip includes a third folding portion adjacent to the front end and a fourth folding portion adjacent to the gripping portion. The third and fourth folding portions are thinner than the thickness of the gripping portion. The third folding portion is folded toward the inner face to overlap with the fourth folding portion.

Abstract: A training weight for a sport stick is provided. The sport stick includes a housing having a sidewall, a proximal end wall and a distal end wall. The sidewall and proximal end wall include an opening and slot which are sized to accept a sport stick's handle and knob. Preferably, the training weight includes a cup which is biased by a spring to force the sport stick's knob to engage and lock to the training weight's proximal end wall. The training weight may include a cam mechanism to permit the retraction and extension of the spring and cup.

Abstract: A bicycle trainer including folding legs and a vertically adjustable frame member supporting an axle and cassette where a rider mounts the rear frame, such as dropouts, of a conventional bicycle with the rear wheel removed. The trainer includes a flywheel with a magnetic brake assembly controlled through an open protocol and configured to receive wireless transmitted signals from an app running on a smart phone or other such applications. The flywheel assembly also includes a bracket coupling the magnetic brake with a frame. A strain gauge is mounted on the bracket to detect torque, which is used to calculate a rider's power while using the trainer.

Abstract: A contact sport, primarily football, a striking pad that is suspended from a frame by straps is described herein. The tension of the straps allows the striking pad to be suspended on frames beside or above the pad providing versatility in frames for which to use.

Abstract: An exercise machine includes a frame, an exercise module, a driving element, a control module and a strain-detecting module. The frame includes a base and at least three pads attached to a lower face of the base. The exercise module and the driving element are supported on the base and operatively connected to each other. The control module is supported on the frame and electrically connected to the driving element. The strain-detecting module includes a deformation-vulnerable plate connected to one of the pads and a strain gauge attached to the deformation-vulnerable plate to allow the strain gauge to detect a value of deformation of the deformation-vulnerable plate. The strain gauge sends the value of deformation to the control module. The control module stops the driving element to stop the exercise module when the value of deformation irregularly changes in a short period of time.

Abstract: Systems and methods for determining a time of a passing at a reference line of an RFID tag traveling along a route and a time of lapsing of the tracked RFID tag on the route, the system have a plurality of spaced apart tag reader systems for wirelessly obtaining tag reads, wherein at least one of the tag reader systems is space apart from the reference line. The timing system receives a plurality of tag reads and determines the time of passing of the RFID at the reference line responsive to the plurality of received tag read messages received from the plurality of tag reader systems.

Abstract: A protective glove includes a padded back portion and a palm portion. The palm portion can include an engineered material, which is knitted and/or weaved, including at least one of (a) a pattern defining different sized openings, (b) a pattern formed from threads of at least two different materials, and (c) a pattern formed with three-dimensional contours. The protective glove provides enhanced breathability and durability over existing gloves having mesh palm coverings. The protective glove also offers improvements in manufacturing, particularly along the edges of the engineered palm covering. The use of different strands in different portions of the palm covering provides improved strength in select areas of the palm covering while not sacrificing flexibility in other areas of the palm covering.

Abstract: A bindingless snowboard including: a deck having a platform, the platform includes a first deck side edge, a second deck side edge, an upper deck surface and a lower deck surface; a first extension secured to and extending from the first deck side edge; a second extension secured to and extending from the second deck side edge; a base having a first base side edge and a second base side edge, the base secured to the lower deck surface; a first carving edge secured to the first deck edge; a second carving edge secure to the second deck edge; a first sidewall spacer secured between the first extension and the first edge and positioned adjacent to the first deck side edge; and, a second sidewall spacer secured between the second extension and the second edge and positioned adjacent to the second deck side edge, wherein at least a portion of a first force applied to the first extension is transmitted to the first carving edge through the first sidewall spacer and at least a portion of a second force applied to th

Abstract: A ski binding reduces a likelihood of injury to the anterior cruciate ligament (ACL) and the tibia is accomplished by absorption in the binding to limit loads transmitted through the boot-binding interface. Release based on an injury threshold includes a binding response tower attached to the ski and adapted for selective engagement with the ski, such that the binding response tower permits biased vertical and lateral horizontal displacement, prior to a release threshold. The binding is in communication with the boot heel and is adapted for slideable engagement in response to vertical and lateral forces exerted from the boot heel. The binding response tower adapted to disengage, or release upon reaching at least one a predetermined lateral displacement or a predetermined vertical displacement, such as when the boot heel is forced sufficiently sideways or upwards due to skier movement that would tend to cause an ACL injury.

Abstract: A snowboard boot and binding system is disclosed which facilitates the engagement and disengagement of a snowboard boot and binding. The snowboard boot may include a boot engagement member extending from a rear of the boot. The boot engagement member is moved downwardly into a corresponding binding engagement member to provide an arrangement which prevents forward movement of the boot. The boot engagement member also may include one or more serrations to engage with one or more pawls on the binding to prevent upward movement of the boot. A snap-in arrangement may be provided in a boot toe region. The boot has protrusions extending outwardly from each side of the boot to engage with catches on the binding sidewalls. As the boot is pressed downwardly into the binding, the protrusions splay the catches until reaching recesses, at which point the catches rebound to capture the protrusions against upward movement.

Abstract: A snowboard hook body is configured to assist a rider on a chairlift wearing a laced boot on a free foot to support a snowboard from the free foot at an open binding of the snowboard. The hook body has forward and rearward ends, opposite sides, a hook top, and a hook bottom. The hook body defines a boot mount at the rearward end thereof. The boot mount has a lace passageway extending transversely there through for receiving a span of bootlace to retain the hook body on a snowboard boot in transverse alignment with the received portion of bootlace. The hook body defines a hook blade at the forward end thereof. The hook blade extends upward from the hook bottom. The hook body defines a shank between the boot mount and the hook blade, wherein the height of the shank is below the height of the hook, establishing a reception area for receiving the portion of the open binding behind the hook blade.

Abstract: A device for support and propulsion comprising a shaft, a spring element coupled to the shaft, and a swing arm coupled to the shaft and the spring element. A lower portion of the spring element comprises a ground interface, optionally comprising a wheel.

Abstract: A motorized vehicle assembly includes an axle comprising a channel extending along a central axis of the axle, a socket positioned within the channel of the axle, and a motorized wheel configured to be mounted on an end the axle. The motorized wheel includes a boss configured to engage the end of the axle when the motorized wheel is mounted on the axle, an electric motor, a tire mounted on the rotor, and a plug positioned within the boss, the plug configured to engage with the socket when the motorized wheel is mounted on the axle. The electric motor includes a stator fixed to the boss and a rotor surrounding the stator, the rotor configured to rotate relative to the stator. The electric motor is configured to cause the rotor to rotate relative to the stator to cause the tire to rotate.

Abstract: A powered board vehicle can include a deck having a support surface, a rear wheel assembly, and a front wheel assembly. The support surface can include a forward portion, a rearward portion, and a neck that connects the forward portion with the rearward portion. The forward portion, the rearward portion, and the neck can be integrally formed. The rear wheel assembly can include a powered rear wheel. The front wheel assembly can include at least one front wheel configured to swivel about a first axis and rotate about a second axis.

Abstract: Every County Wins is a lottery draw game that involved counties within a particular state within the United States. The percentage of people within that county will determine how many people and how much the prize will be. A person will go to a lottery dealer within. their county and purchase a quick draw Every County Wins Ticket. That ticket will consist of their ticket number and number or letters to identify their county. On the designated draw date a computer generated program will pick a ticket that has been sold in that county. The person with that ticket will be the winner. There will be a draw for every county within the state. People living in larger counties will have more winners. The computer program may pick 2 or 3 winners pending on the population of people in that county.

Abstract: A figure for attaching to a building block includes a body; and a base attached to the body at a first end of the base, the base has a cavity disposed within a second end of the base to slidingly attach to one or more connectors of the building block; the figure is detachably mounted on the building block.

Abstract: The puzzle with attachable and releasable pieces includes shaped puzzle pieces and a two-part base, which includes a front base section and a back baseplate. The puzzle pieces have rear-facing engaging mechanisms that are attachable to forward-facing male studs carried by the back baseplate. The puzzle pieces each have a particular outer shape determining placement. The puzzle may be stored with the puzzle pieces engaged to the back baseplate, but the puzzle pieces may be later released for repeat play by using a provided puzzle release mechanism.

Abstract: A method is disclosed for operating a mobile computing device. The method may include a communication link between the mobile computing device and a second computing device. The second computing device may provide a virtual environment for the mobile computing device. Furthermore, the mobile computing device may allow a user to control a self-propelled device, which may be rendered as a virtual entity upon the virtual environment.

Abstract: Systems, methods and computer readable mediums provide for displaying pixels asynchronously on a display, block-based camera updates, and event driven frame updates on an asynchronous display.

Abstract: A hand-held controller includes a handle extending in a longitudinal direction. The handle is shaped and dimensioned to be grasped by a user's hand. A trigger protrudes from an outer surface of the handle and moves relative to the handle responsive to pressing of the trigger by a finger of the user's hand. The trigger includes a touch surface that comes into contact with the finger of the user's hand to detect sliding of the finger of the user's hand on the touch surface.

Abstract: A hand operated game controller for controlling a game console. Multiple push buttons are arranged on the surface of the game controller. The push buttons are placed in an arrangement that approximately matches the natural position of the fingers of the user's hands. As the user presses the buttons, control signals are sent from the buttons to the game console via wiring.

Abstract: A proximity sensor, including a housing, an array of lenses mounted in the housing, an array of alternating light emitters and light detectors mounted in the housing, each detector being positioned along the image plane of a respective one of the lenses so as to receive maximum light intensity when light enters the lens at a particular angle, an activating unit mounted in the housing and connected to the emitters and detectors, synchronously co-activating each emitter with at least one of the detectors, each activated emitter projecting light out of the housing along a detection plane, and a processor receiving outputs from the detectors corresponding to amounts of projected light reflected by an object in the detection plane to the detectors, and calculating a two-dimensional location of the object in the detection plane based on the detector outputs and the particular angle.