Abstract: Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth. The first tool, the guides, and the prosthesis are predesigned and prefabricated based on images taken of the patient anatomy.

Abstract: Example embodiments relate to crosstalk reduction for light detection and ranging (lidar) devices using wavelength locking. An example embodiment includes a lidar device. The lidar device includes a first light emitter configured to emit a first light signal and a second light emitter configured to emit a second light signal. The lidar device also includes a first light guide and a second light guide. In addition, the lidar device includes a first light detector and a second light detector. Further, the lidar device includes a first wavelength-locking mechanism configured to use a portion of the first light signal to maintain a wavelength of the first light signal and a second wavelength-locking mechanism configured to use a portion of the second light signal to maintain a wavelength of the second light signal. The wavelengths of the first light signal and the second light signal are different.

Abstract: The present disclosure relates to systems and methods that utilize an internal optical path in lidar applications. An example method includes causing at least one light-emitter device to emit a plurality of light pulses toward a rotatable mirror. The rotatable mirror (i) reflects at least a first light pulse of the plurality of light pulses into an external environment; and (ii) reflects at least a second light pulse of the plurality of light pulses into an internal optical path. The method also includes receiving, by a photodetector, (i) a reflected light pulse comprising a reflection of the first light pulse caused by an object in the external environment; and (ii) the second light pulse received via the internal optical path. The internal optical path is defined at least in part by one or more internal reflectors that reflect the second light pulse toward the rotatable mirror such that the rotatable mirror reflects the second light pulse toward the photodetector.

Abstract: The present disclosure relates to systems and methods for occlusion detection. An example system includes a primary reflective surface and a rotatable mirror configured to rotate about a rotational axis. The rotatable mirror includes a plurality of secondary reflective surfaces. The system also includes an optical element and a camera that is configured to capture at least one image of the optical element by way of the primary reflective surface and at least one secondary reflective surface of the rotatable mirror.

Abstract: The present disclosure relates to devices, lidar systems, and vehicles that include optical redirectors. An example lidar system includes a transmitter and a receiver. The transmitter includes at least one light-emitter device configured to transmit emission light into an environment of the lidar system. The receiver is configured to detect return light from the environment and includes a plurality of apertures, a plurality of photodetectors, and a plurality of optical redirector elements. Each optical redirector element is configured to optically couple a respective portion of return light from a respective aperture to at least one photodetector of the plurality of photodetectors.

Abstract: Example embodiments relate to beam homogenization for occlusion avoidance. One embodiment includes a light detection and ranging (LIDAR) device. The LIDAR device includes a transmitter and a receiver. The transmitter includes a light emitter. The light emitter emits light that diverges along a fast-axis and a slow-axis. The transmitter also includes a fast-axis collimation (FAC) lens optically coupled to the light emitter. The FAC lens is configured to receive light emitted by the light emitter and reduce a divergence of the received light along the fast-axis of the light emitter to provide reduced-divergence light. The transmitter further includes a transmit lens optically coupled to the FAC lens. The transmit lens is configured to receive the reduced-divergence light from the FAC lens and provide transmit light. The FAC lens is positioned relative to the light emitter such that the reduced-divergence light is expanded at the transmit lens.

Abstract: A sprinkler wrench for installing a sprinkler includes a base having a tool engaging portion. A sidewall extends from the base and a sprinkler engaging portion extends from the sidewall. The sprinkler engaging portion includes a pair of oppositely facing surfaces defining an outer perimeter and a recess including two opposing flats. A protective boot cover is removably attached to the sprinkler engaging portion and includes flat cover portions covering the two opposing flats.

Abstract: A dental device is described. The dental device includes a surgical template having one or more sites for drilling osteotomies in the maxillary or mandibular jaw and a false teeth set. The surgical template and false teeth set are configured to fit together to form a denture prosthesis that can be implanted in a patient. Also described are a method for creating a surgical dental template, a method for implanting a dental prosthesis, and a method for reducing jaw bone in a patient.

Abstract: Methods for generating and providing a full arch prosthesis from a pre-existing prosthesis are presented, starting from the pre-existing prosthesis. This prosthesis is removed from the mouth, scanned, and replaced within the mouth. An intermediate prosthesis is generated from the scan, and modified to match a final physiological target configuration of the patient's mouth. The intermediate prosthesis is used to generate a final virtual representation of the target configuration, from which final virtual representation the final working prosthesis is fabricated. The intermediate prosthesis is mounted in the patient's mouth in sections, for desirable repositioning, sections then being bonded together. Copings can be digitally subtracted to enable press fit new copings to be installed. Alternatively, the intermediate prosthesis can include integrated false copings. The intermediate prosthesis is scanned to generate a final digital model or virtual representation of the desired final prosthesis.

Abstract: Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth. The first tool, the guides, and the prosthesis are predesigned and prefabricated based on images taken of the patient anatomy.

Abstract: A sequential dental surgical guide system and method for immediate load is described. The system includes 1) a tooth and tissue borne surgical guide with fixation pins and bone reduction osteotomy sites 2) an implant osteotomy guide and 3) a prosthesis guide. The system does not rely on any anatomical reference points such as tissue or bone after placement of the first tooth and tissue borne reference guide. The sequential guide(s), both surgical implant placement and prosthesis guide rely on the original fixation positions determined by the first guide. Digital treatment planning and design are used to accurately place each sequential guide back to the original fixation pin positions. The fixation pin reference can be pinned and repined in the same sites per sequential guide or fixed in the jaw through the protocol by keeping them in place and switching out the guides.

Abstract: A dental device is described. The dental device includes a surgical template having one or more sites for drilling osteotomies in the maxillary or mandibular jaw and a false teeth set. The surgical template and false teeth set are configured to fit together to form a denture prosthesis that can be implanted in a patient. Also described are a method for creating a surgical dental template, a method for implanting a dental prosthesis, and a method for reducing jaw bone in a patient.

Abstract: A dental device is described. The dental device includes a surgical template having one or more sites for drilling osteotomies in the maxillary or mandibular jaw and a false teeth set. The surgical template and false teeth set are configured to fit together to form a denture prosthesis that can be implanted in a patient. Also described are a method for creating a surgical dental template, a method for implanting a dental prosthesis, and a method for reducing jaw bone in a patient.

Abstract: A sprinkler wrench for installing a sprinkler includes a base having a tool engaging portion. A sidewall extends from the base and a sprinkler engaging portion extends from the sidewall. The sprinkler engaging portion includes a pair of oppositely facing surfaces defining an outer perimeter and a recess including two opposing flats. A protective boot cover is removably attached to the sprinkler engaging portion and includes flat cover portions covering the two opposing flats.

Abstract: A corridor sprinkler includes a first flow shaper member supported by a support for shaping the flow of fluid from a sprinkler that includes a shelf portion having a proximal end and a distal end, the shelf being generally parallel to and spaced from the axis of the flow passage through the sprinkler body. A shield extends directly from the distal end of the shelf and generally perpendicular to the axis and partially intersecting the column of fluid without the support obstructing the column of fluid between the discharge opening and the shield. The shelf and the shield can each have a diameter greater than a diameter of the discharge opening. A second flow shaper can extend from the support on an opposite side of the axis from the first flow shaper and partially intersecting the column of fluid.

Abstract: A corridor sprinkler includes a first flow shaper member supported by a support for shaping the flow of fluid from a sprinkler that includes a shelf portion having a proximal end and a distal end, the shelf being generally parallel to and spaced from the axis of the flow passage through the sprinkler body. A shield extends directly from the distal end of the shelf and generally perpendicular to the axis and partially intersecting the column of fluid without the support obstructing the column of fluid between the discharge opening and the shield. The shelf and the shield can each have a diameter greater than a diameter of the discharge opening. A second flow shaper can extend from the support on an opposite side of the axis from the first flow shaper and partially intersecting the column of fluid.

Abstract: A window restraint device includes a mesh screen having an upper end and a lower end. The restraint device includes an upper attachment device, such as a clip or strap, coupled to the screen upper end for removable attachment to an automobile door frame. The restraint device also includes a lower attachment device, such as a suction cup, coupled to the screen lower end for connecting the lower end of the screen to an automobile window. Neither the upper or lower attachment devices interfere with normal operation of the vehicle window, nor do they restrict a pet from normal movement within the vehicle. The restraint device may also include a spring-loaded reel from which the screen may be extended from or retracted into. The spring provides tension between upper and lower ends of the screen.

Abstract: An animal collar according to the present invention includes an inner layer of non-porous flexible plastic. The collar may also include an outer layer of non-porous flexible plastic molded over the inner layer of non-porous flexible plastic, the outer layer having first and second ends and being configured to encircle a neck of an animal. A clasp or other fastener may be included for coupling together the first and second ends about the animal's neck. In addition, the inner layer includes an aesthetic property such as a color. The outer layer may also have an aesthetic property such as another color that is different from the aesthetic property of the inner layer. The collar may also include at least one ornament, the inner layer being molded over the at least one ornament and separating it from the outer layer.

Abstract: A window regulator wherein the drive means can be pivoted, during assembly, to move the centers of the driven drum and a guide closer together to provide for easy routing of the flexible drive member and can then be moved apart to tension the flexible drive member to complete the assembly. The regulator can be a single rail regulator or a dual rail regulator and the flexible drive member can be a belt, wire cable or other suitable device.