Abstract: A method for identifying a surface slope includes the following steps: A device body with a tilt angle relative to an absolute horizontal plane and associated with a gravity is placed. A plurality of gravity response signals respectively corresponding to a plurality of angles readouts upon sensing the tilt angle are generated. Each of the plurality of gravity response signals is compared with a reference signal one by one to obtain a respective deviation comparison signal. An optical signal having a parameter is emitted according to a magnitude of the respective deviation comparison signal, wherein the parameter and the magnitude have a mathematical relationship therebetween.

Abstract: Systems and methods for monitoring and tracking usage of a lamp and, in one example, assigning a monetary value that can be billed to an end user are provided. Examples of the lamps can communicate wirelessly in order to receive and to transmit information related to initialization, authorization, electrical power consumption monitoring, and combinations thereof. In one embodiment, the lamp transmits data a usage parameter to a service provider via a network. The service provider can aggregate the data and, in one example, assign a usage fee that describes a monetary value based on the usage parameter and generate an output that includes that usage fee.

Abstract: The present disclosure relates to a detector assembly, a detector, and a laser ranging system. The detector assembly includes a first laser receiving unit configured to receive laser emitted by a first laser emitting module or a laser level, and a second laser receiving unit configured to be substantially perpendicular to the first laser receiving unit. The second laser receiving unit includes a first portion used for receiving laser emitted by a second laser emitting module of the laser level and a second portion used for receiving the laser emitted by the second laser emitting module of the laser level, where the first portion is separated from the second portion by a first distance.

Abstract: A spirit level includes a housing having an elongated body and a level tube set and a lighting device mounted in the body of the housing. The body has a recessed accommodation chamber and two positioning grooves connected to the recessed accommodation chamber and disposed adjacent to the end portions of the level tubes of the level tube set. The lighting device includes a controller mounted in the recessed accommodation chamber and a plurality of light-emitting devices respectively mounted in the positioning grooves for illuminating the level tubes so that the user can see the level tubes. The invention simplifies the assembly of the spirit level and makes it easy to repair or replace the light-emitting devices of the lighting device without increasing the height or thickness of the spirit level.

Abstract: Systems and methods for monitoring and tracking usage of a lamp and, in one example, assigning a monetary value that can be billed to an end user are provided. Examples of the lamps can communicate wirelessly in order to receive and to transmit information related to initialization, authorization, electrical power consumption monitoring, and combinations thereof. In one embodiment, the lamp transmits data a usage parameter to a service provider via a network. The service provider can aggregate the data and, in one example, assign a usage fee that describes a monetary value based on the usage parameter and generate an output that includes that usage fee.

Abstract: An illuminating spirit level apparatus comprises a spirit level base having a first vial assembly, a second vial assembly, a light, and a battery. The vial assemblies are each filled with a fluid, having a metal ball slidably disposed therein and having a pair of electrodes disposed at the central lengthwise point of on each side of the vial. The battery provides an electrical power source for the light, and the battery, the light, the electrodes of the first vial assembly, and the electrodes of the second vial assembly are electrically connected in series through circuitry wiring. When the spirit level base is placed in a level and/or plumb orientation, the metal ball in the relevant vial assembly moves to the center of that vial assembly contacting and electrically connecting the electrodes on either side of the vial assembly, resulting in the light illuminating with electricity from the battery.

Abstract: A lighted level tool comprising a body including at least one vial opening, a vial disposed at least partially within the at least one vial opening, a light source for illuminating the vial, an insert member mounted at a predetermined location in the body relative to the at least one vial opening, and at least one an end cap mounted at an end of the body. The insert member is configured to receive the vial therein and to hold the light source opposite an end of the vial. A control circuit for powering the light source is mounted in the at least one end cap.

Abstract: A spirit level includes a housing, a cap at one end of the housing, a battery assembly at an other end of the housing, a LED indication assembly at a center of the housing, a vertical orientation indication assembly between the LED indication assembly and the cap, a forty-five-degree orientation indication assembly between the LED indication assembly and the battery compartment, and a PCB and angle sensing circuit electrically connected to the battery assembly, the LED indication assembly, the vertical orientation indication assembly, and the forty-five-degree orientation indication assembly respectively.

Abstract: The haircutting shears with illuminated level are adapted to aid a hairstylist in performing precise haircutting procedures. The shears are provided with a spirit level encased in an illuminated housing, which is disposed on the outer surface of one of the blades of the shears. The illuminated spirit level allows the stylist to quickly view the level to determine if the cutting angles are being executed in a desired manner. An integrated circuit device is housed in the shears and connected to the level for obtaining and storing data therefrom. A USB port is provided for connecting the integrated circuit device to a processor or other display device. The USB port also provides a charging means for the illuminating device.

Abstract: A device for determining level of a surface, the device comprising a plurality of level vials configured to indicate orientation of the device, the plurality of level vials disposed at distinct locations on the device. The device including a radius bottom formed in an object contact surface at substantially the latitudinal center of the contact surface and extending longitudinally the length of the surface. The device further including a joint recess disposed centrally along the longitudinal axis of the device and extending latitudinally across the device. The device also includes one or more user controllable light sources coupled to the plurality of level vials for illuminating the level vials.

Abstract: A level assembly includes an elongated housing that has a first end, a second end and a perimeter wall. The perimeter wall includes a front wall, a back wall, a first side wall and a second side wall. The housing has a plurality of apertures therein. Each of the apertures extends into the front wall. Each of the apertures has one of a plurality of levels mounted therein. A plurality of light emitters is mounted in the housing. Each of the apertures has one of the light emitters directed therein. The light emitters illuminate adjacently positioned ones of the levels when the light emitters are turned on. A power supply is mounted within the housing and is electrically coupled to the light emitters. An actuator is mounted on the housing and is electrically coupled to the power supply. The actuator is actuated to turn the light emitters on or off.

Abstract: A device for determining level of a surface, the device comprising a plurality of level vials configured to indicate orientation of the device, the plurality of level vials disposed at distinct locations on the device. The device including a radius bottom formed in an object contact surface at substantially the latitudinal center of the contact surface and extending longitudinally the length of the surface. The device further including a joint recess disposed centrally along the longitudinal axis of the device and extending latitudinally across the device. The device also includes one or more user controllable light sources coupled to the plurality of level vials for illuminating the level vials.

Abstract: An illuminated level has a housing containing a solid body pivotally mounted in the housing and forming a pendulum which can pivot to a first position in which the surface is accurately level. A light path is provided through the solid body having an exit opening at the pivot point and an entry opening the opposite end. A source of laser light on the housing is arranged to transmit light through an orifice on the housing so that the light through the orifice enters the entry opening to pass along the path when the solid body is in the first position and is prevented from entering the entry opening when the solid body is out of the level position. A light receiver in the housing at the outlet is responsive to the passage of light through the path for providing a sound indicating when the solid body is in the first position.

Abstract: A carpenter's level with an integral bubble vial illumination system is herein disclosed. A plurality of level vials is illuminated by lamps located at either end to light the vials internally. The vials are arranged in close parallel pairs having a blackout panel between for enhanced accurate viewing of the bubbles from either side of the level. Power to the lamps is supplied by a battery which is charged by solar cells, thereby reducing battery changes. The level is equipped with a graduated slope indicator port located on the top surface of the level to easily measure sloped surfaces. An auto-off feature will also be integrated to save power.

Abstract: An illuminated device for checking an orientation to horizontal, comprising an elongated flat surface for engaging a surface of an object; at least one bubble level disposed in relation to the elongated flat surface to facilitate indicating when the elongated flat surface is horizontal; a light source for illuminating a region in proximity to the elongated flat surface; and an elongated body comprising the elongated flat surface, the at least one bubble level, and the light source.

Abstract: A longitudinally-elongated, hand-held level includes a body having a reference surface, a longitudinally-extending corner adjacent the reference surface, and a plurality of bubble vials for indicating an orientation of the reference surface. One or more battery-powered lights (e.g., LEDs) create a longitudinally elongated light emitting region along the corner to illuminate a longitudinally-elongated area that is adjacent to the level for use in low-light environments. The light(s) may project light through a light guide and/or light diffuser(s) extending along the corner to disperse light along the longitudinal extent of the level. The light(s) may also illuminate the corner(s) of the level and/or the bubble vials to enhance use in low-light environments.

Abstract: As the name implies, this product is a compact leveling device that is configured with a series of lighting fixtures. Similar in construction to standard levels, the Level Lite is fabricated of durable metal or plastic material. A solid level, this product is available in various sizes. A series of light emitting diodes (LED) are evenly spaced apart within the circular opening of the unit which houses the liquid filled vial, providing illumination for the entire unit while in use. Power to the Level Lite is provided by an internally encased, replaceable battery, such as a standard AA alkaline battery, or coin battery. Additional contemplated power sources include solar cells and rechargeable batteries.

Abstract: A combination level/try square includes an elongated body with an arm at one end thereof. The arm is rotatable between a non-use position against the body and a use position in which the body and the arm define a try square. The body incorporates three indicators, namely a plumb indicator, a level indicator and a slope indicator. In a second embodiment, a laser pointer is provided on one end of the body.

Abstract: A longitudinally-elongated, hand-held level includes a body having a reference surface, a longitudinally-extending corner adjacent the reference surface, and a plurality of bubble vials for indicating an orientation of the reference surface. One or more battery-powered lights (e.g., LEDs) create a longitudinally elongated light emitting region along the corner to illuminate a longitudinally-elongated area that is adjacent to the level for use in low-light environments. The light(s) may project light through a light guide and/or light diffuser(s) extending along the corner to disperse light along the longitudinal extent of the level. The light(s) may also illuminate the corner(s) of the level and/or the bubble vials to enhance use in low-light environments.

Abstract: An indirector light fixture in combination with a leveling device which is utilized to position the light fixture at least one of a plurality of preselected angles. A method is also described for positioning the fixture at the at least one of the preselected angles.

Abstract: An illuminated caliper device includes a caliper assembly having first and second caliper legs each having a pointed tip and a pivot end. A pivot support and first and second pivot elements pivotally connects the pivot ends of the first and second caliper legs to the pivot support. A battery housing attached to the pivot support contains a battery. First and second light emitting diodes are coupled by a switch mounted on the battery housing to first and second terminals of the battery and produced light that is directed to areas of the surface to be measured by pointed tips of the legs. The intensity and color of light emitted by the first light emitting diode are such as to sufficiently illuminate the surface under low ambient illumination conditions without disrupting acquired night vision of a user.

Abstract: A reflecting lighted level (10) for facilitating leveling of an object, the reflecting lighted level (10) broadly comprising a generally frustoconically-shaped vial (12) having first and second exterior surfaces (22,24) and an internal angled reflecting surface (26); a light source (14) for emitting light; a light tube (16) for focusing or concentrating the emitted light towards the vial (12); a base (18) for supporting the vial (12); and a power source (20) for powering the light source (14). The internal angled reflecting surface (26) within the vial (12) is positioned at a generally 45° angle for reflecting light. The light source (14), a light emitting diode (“LED”), is centrally positioned relative to the vial (12). The light tube (16) is positioned proximate to the first exterior surface (22) of the vial (12), such that the light tube (16) is positioned between the light source (14) and the vial (12). The light source (14) is then partially positioned within the light tube (14).

Abstract: This invention describes an illuminated spirit level that can be used in an aircraft to determine aircraft attitude as well as aircraft direction. The invention essentially comprises three levels arranged in the shape of a cross with bubble vials in each of the left and right “wings” and a bubble vial in the forward section of the central level. The levels would have a battery-operated power source to keep the device illuminated in the event that the electrical controls of the plane malfunction. Additionally, the bubble vials would contain a glow-in-the-dark fluid in case of battery failure. The spirit level could be secured to the top of the dash or alternatively, could be mounted within the instrument control panel.