Apparatus and associated methods relate to a lamp manipulation tool (LMT) having a bellows engaged within a container and fluidly connected to a vacuum source disposed in the container, the vacuum source being configured to apply a suction such that the bellows is releasably coupled to a lamp when the lamp occludes an aperture of the bellows. In an illustrative example, the bellows may have a first aperture into the bellows and a second aperture within the bellows. The first aperture may, for example, be larger than the second aperture. The vacuum source may, for example, be operated by a remote switch. The container may, for example, be coupled to a handle. Various embodiments may advantageously provide a single LMT that allows a user to manipulate a variety of lamps beyond the user's normal reach.

A quasi-macroscopic cold field emission electron gun and a manufacturing method thereof are provided, which includes a filament device and an electron gun base, wherein the filament device includes a cold cathode filament and a conductive capillary tube, the cold cathode filament passes through one end of the conductive capillary tube and is crimped through a pressing groove device, the other end of the conductive capillary tube is connected to the electron gun base, and the end of the cold cathode filament is the electron emission end. Through the coaxial nesting and pressing deformation of quasi-macroscopic carbon fiber and metal tube and using of the non welding electrical connection method, this technology avoids the problem that it is not easy to form a reliable electrical connection during the welding process due to the poor wettability between carbon fiber and metal.

A resistor bypass circuit for a series lighting circuit includes a plurality of serially connected light sources and a bypass resistor being connected in parallel with at least one of the respective light sources, each respective light source being low wattage and being capable operating on a one hundred percent duty cycle as desired.

A resistor bypass circuit for a series lighting circuit includes a plurality of serially connected light sources and a bypass resistor being connected in parallel with at least one of the respective light sources, each respective light source being low wattage and being capable operating on a one hundred percent duty cycle as desired.

Light bulb removing and installing assemblies are provided that can be easily configured for use with light bulbs different sizes and/or shapes. The assembly can include at least two different types of bulb holding devices that are removably connected to one another in a nested manner. The assembly can include bulb holding devices of different sizes that have an open bottom, which is removably connectable to a common base. The assembly can include a resilient finger holder and a common base, where the common base includes a number of upstanding, radially directed flexible members.

Components of scientific analytical equipment, and particularly to methods for extending the operational lifetime or otherwise improving the performance of dynodes used in electron multipliers. The method includes: (i) increasing the secondary electron yield of a dynode and/or (ii) decreasing the rate of degradation of electron yield of a dynode, by exposing a dynode electron-emissive surface to an electron flux under conditions causing electron-impact induced removal of a contaminant deposited on the dynode electron-emissive surface. The conditions may be selected such that the electron-mediated removal is enhanced relative to a contaminant deposition process so as to provide a net decrease in the rate of contaminant deposition and/or a decrease in the amount of contaminant present on the dynode electron-emissive surface.

Components of scientific analytical equipment, and particularly to methods for extending the operational lifetime or otherwise improving the performance of dynodes used in electron multipliers. The method includes: (i) increasing the secondary electron yield of a dynode and/or (ii) decreasing the rate of degradation of electron yield of a dynode, by exposing a dynode electron-emissive surface to an electron flux under conditions causing electron-impact induced removal of a contaminant deposited on the dynode electron-emissive surface. The conditions may be selected such that the electron-mediated removal is enhanced relative to a contaminant deposition process so as to provide a net decrease in the rate of contaminant deposition and/or a decrease in the amount of contaminant present on the dynode electron-emissive surface.

A microwave discharge lamp includes a discharge bulb which is discharged by a microwave and emits a light, a cylindrical resonant cavity which has at least a portion formed of a conductive mesh of net structure and is disposed to cover the discharge bulb, a main antenna which has one end supplied with microwave power through a bottom surface of the resonant cavity and the other end electrically contacting a side surface of the resonant cavity to be grounded, and a dummy antenna which has one end electrically grounded to the bottom surface of the resonant cavity and the other end electrically grounded to the side surface of the resonant cavity and is disposed opposite to the main antenna to be symmetrical to the main antenna about a central axis of the resonant cavity.

An autonomous aerial vehicle (AAV) includes a plurality of lightbulb changers and an actuator for controlling the plurality of lightbulb changers. A structure database stores structure data corresponding to a structure, the structure data including coordinate data corresponding to three-dimensional coordinates of a location that facilitates an unobstructed view of a plurality of exterior lights of the structure, the structure data further including schematic data that indicates positions on the structure of the plurality of exterior lights. A flight control system controls a position of the AAV, based on the coordinate data, to the location that facilitates the unobstructed view of the plurality of exterior lights of the structure. A camera captures image data corresponding to the unobstructed view of the plurality of exterior lights of the structure. A processor controls the AAV to perform a lighting inspection procedure and/or a lightbulb replacement process.

An arrangement for a high resolution active matrix display includes organic emissive layers of distinct colors each deposited across continuous regions so as to include more than one pixel emissive region. Color filters are situated to partially block light from at least some of the emissive regions such that primary additive colors are transmitted from distinct subsets of pixels. The emissive layers may be deposited in alternating parallel stripes along rows or columns of the display, or may be oriented perpendicularly with respect to one another such that the emissive layers overlap in the emissive regions of at least some pixels. In some examples, red, green, and blue of pixels are arranged in regular patterns across the display and with the emissive regions for the blue pixels forming a relatively larger area of the display than either the red or green pixels.