摘要:
A luminaire globe member formed of light transmissive material and having a reflector section and a refractor section, light from a light source such as a high intensity discharge lamp initially impinging on at least major portions of the reflector section being reflected back into the interior of the globe member by prisms preferably disposed on exterior surfaces of said reflector section, refractive prisms preferably disposed on interior surfaces of the reflector section redirecting said reflected light through a focal point or loci of points directly above the light source, the light thus redirected from the reflector section being incident on surfaces of the refractor section at angles similar to angles of incidence of light rays directly emanating from the light source and directly incident on said refractor section surfaces, thereby to increase light efficiency by virtue of improved light control within the globe member.
摘要:
An optical unit is provided for use in a suspended aisle luminaire. The optical unit comprises a plurality of metalized reflecting components which are operative to produce a uniform illuminance level along vertical surfaces of an aisle while minimizing glare toward workers in the aisle. Secondly, the optical unit includes a plurality of non-metalized reflecting components which are operative to illuminate the vertical and horizontal surfaces of the aisle. Additionally, the optical unit may further comprise a plurality of refracting components which are operative to illuminate vertical surfaces near the luminaire and reduce dark spots on the vertical surfaces.
摘要:
An automated method as system for verifying end-to-end connectivity in a broadcast network such as an xDSL network including a plurality of elements such as ATM switches coupled to a subscriber modem. The method and system includes determining each of the elements in the network and establishing a communication channel with a corresponding interface of each element to generate test commands and elicit responsive data. Service logic is applied to determine the location of a fault and display the same on a Graphical User Interface (GUI) in a suitable format such as a Visual Word Document (VWD).