Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: A light fixture can be electrically connected to a module that can add certain functionality and/or alter the way the light fixture is controlled. A module base includes a module receiver configured to receive one of a plurality of modules. At least the module base is connected to input power. When a first module is coupled to the module base, the combination of the light fixture and module has a first range of functionality dictated at least in part by the functionality of the first module. When the first module is removed and replaced with a second module, the combination of the light fixture and the module has a second range of functionality dictated at least in part by the functionality of the second module.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: An environmental control is configured to control lighting and/or other environmental parameters of an indoor space so that such parameters simulate measured outdoor environmental parameters. One or more sensors, such as a lighting sensor, can be mounted outdoor. Parameters measured by the sensor are communicated to a controller, which in turn controls one or more luminaires in the indoor space to simulate the actual outdoor light. In some instances the controller is configured to modulate the simulation to conform to user-defined preferences.

Abstract: A security system for use with a wireless access point that is configured to transmit a first wireless signal within a predetermined transmission range includes an outdoor lighting fixture including a master wireless transceiver configured and located to receive the first wireless signal from the wireless access point and to re-transmit the first wireless signal beyond the predetermined transmission range; and a first peripheral device located and configured to receive the first wireless signal re-transmitted from the master wireless transceiver, and to transmit a second wireless signal to at least one of (a) the wireless access point via the master wireless transceiver, and (b) a second peripheral device.

Abstract: Methods and systems are provided for pairing electronic devices. One method includes generating a code sequence for pairing an electronic device with an application executed by a processor of a controller, the controller being remote to the electronic device, and the electronic device and the controller interfacing with a server via a network connection. The code sequence includes a configuration mode portion indicating a role for a user of the controller, an invitation sequence having invitation code for the user and a random code portion. The method further includes receiving the code sequence by the electronic device; validating the code sequence by the electronic device using a key data structure; and pairing the electronic device to the controller for enabling the application to monitor and command the electronic device.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: An electronic door lock system that saves power by putting some electronic devices, such as transceivers, in sleep mode and by executing instructions only in response to ambient trigger scenarios. Instructions sent to an electronic door lock from a remote device could be stored on a server before being downloaded to the electronic door lock system once the transceiver is awakened from sleep mode.

Abstract: A light fixture can be electrically connected to a module that can add certain functionality and/or alter the way the light fixture is controlled. A module base includes a module receiver configured to receive one of a plurality of modules. At least the module base is connected to input power. When a first module is coupled to the module base, the combination of the light fixture and module has a first range of functionality dictated at least in part by the functionality of the first module. When the first module is removed and replaced with a second module, the combination of the light fixture and the module has a second range of functionality dictated at least in part by the functionality of the second module.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: An environmental control is configured to control lighting and/or other environmental parameters of an indoor space so that such parameters simulate measured outdoor environmental parameters. One or more sensors, such as a lighting sensor, can be mounted outdoor. Parameters measured by the sensor are communicated to a controller, which in turn controls one or more luminaires in the indoor space to simulate the actual outdoor light. In some instances the controller is configured to modulate the simulation to conform to user-defined preferences.

Abstract: A light fixture is configured to receive a module that can add certain functionality to the light fixture and/or alter the way the light fixture is controlled. The light fixture includes a module receiver configured to receive one of a plurality of modules. When a first module is coupled to the light fixture, the light fixture has a first range of functionality dictated at least in part by the functionality of the first module. When the first module is removed and replaced with a second module, the light fixture has a second range of functionality dictated at least in part by the functionality of the second module.

Abstract: A light fixture is configured to receive a module that can add certain functionality to the light fixture and/or alter the way the light fixture is controlled. The light fixture includes a module receiver configured to receive one of a plurality of modules. When a first module is coupled to the light fixture, the light fixture has a first range of functionality dictated at least in part by the functionality of the first module. When the first module is removed and replaced with a second module, the light fixture has a second range of functionality dictated at least in part by the functionality of the second module.

Abstract: A security system for use with a wireless access point that is configured to transmit a first wireless signal within a predetermined transmission range includes an outdoor lighting fixture including a master wireless transceiver configured and located to receive the first wireless signal from the wireless access point and to re-transmit the first wireless signal beyond the predetermined transmission range; and a first peripheral device located and configured to receive the first wireless signal re-transmitted from the master wireless transceiver, and to transmit a second wireless signal to at least one of (a) the wireless access point via the master wireless transceiver, and (b) a second peripheral device.

Abstract: A security system for use with a wireless access point that is configured to transmit a first wireless signal within a predetermined transmission range includes an outdoor lighting fixture including a master wireless transceiver configured and located to receive the first wireless signal from the wireless access point and to re-transmit the first wireless signal beyond the predetermined transmission range; and a first peripheral device located and configured to receive the first wireless signal re-transmitted from the master wireless transceiver, and to transmit a second wireless signal to at least one of (a) the wireless access point via the master wireless transceiver, and (b) a second peripheral device.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: A lockset (10) is actuable by pivoting a lever (14) about a longitudinal axis of the lockset (10) by rotating the lever (14) and by pushing or pulling on the lever (14). An actuator linked to the lever extends into a retractor assembly (33) of the lockset and is configured to actuate a retractor (40) to retract a latch bolt (550) in order to enable a corresponding door (22) to be opened. The latch bolt (550) has a blocking surface (560) that is configured to engage an edge of a door strike plate (45) in order to prevent the door (22) from opening. The blocking surface (560) is inclined relative to an axis of the latch bolt (550).

Abstract: An electronic door lock system that saves power by putting some electronic devices, such as transceivers, in sleep mode and by executing instructions only in response to ambient trigger scenarios. Instructions sent to an electronic door lock from a remote device could be stored on a server before being downloaded to the electronic door lock system once the transceiver is awakened from sleep mode.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.