Abstract: A method and associated implementing system eliminates much of the stress presently introduced by the bonding of ophthalmic lens blanks, or blanks to a holding device, namely a metal block. The method of attaching ophthalmic lens blanks to a blocking assembly comprises the steps of shaping a blocking assembly to take the shape of an ophthalmic lens blank surface of an ophthalmic lens, wherein the blocking assembly is not attached directly to the ophthalmic lens blank during shaping of the blocking assembly; and following the shaping of the blocking assembly, attaching the lens blank to the shaped blocking assembly.

Abstract: A method of dynamic electronic storage of corrective lens manufacturing criteria comprises the steps of: a) providing eyeglass frame for holding a pair of corrective lenses; b) coupling a rewritable electronic storage medium to the eyeglass frame; c) storing corrective lens manufacturing criteria on the rewritable electronic storage medium. The corrective lens manufacturing criteria includes a distance power reference location, a near power reference location and a prism reference point location, astigmatism criteria, magnitudes and angles for prism, distance and near field vision correction of single vision or progressive lenses, lens design type and lens design vender. The rewritable electronic storage medium may be an RFID device embedded within a temple part of the frame, or a QR Code, such as a micro QR code, which is linked to a webpage containing the corrective lens manufacturing criteria.

Abstract: The light projection assemblies and opacity monitors described in this specification have an integrating sphere with an input aperture, an output aperture, and a spherical-shaped internal chamber. An LED source is located external to the chamber at the input aperture. A light baffle is located within the chamber at the output aperture. A condenser lens is located external to the chamber at the output aperture.

Abstract: A manually operated lens cribber has a cutting compartment on a base. The cutting compartment has a door that is moveable between a closed position and an open position. A cutting tool is inside the cutting compartment and rotates about a first axis. A lens blank carrier is attached to the base in a manner to be manually movable across the base on a second axis that is substantially perpendicular to the first axis. The lens blank carrier has a hand operated screw mechanism on which a lens blank can be mounted and which moves the lens along a third axis that is substantially parallel to the first axis. A releasable end stop is positioned on the base for positioning the lens blank carrier relative to the cutting tool so that the desired amount of material is removed from the lens blank. A calibration and positioning scale is also provided.

Abstract: The light projection assemblies and opacity monitors described in this specification have an integrating sphere with an input aperture, an output aperture, and a spherical-shaped internal chamber. An LED source is located external to the chamber at the input aperture. A light baffle is located within the chamber at the output aperture. A condenser lens is located external to the chamber at the output aperture.

Abstract: A device for measuring near forward scatter caused by particulate matter in a fluid is disclosed. The device comprises, according to various embodiments, a transceiver and a reflector. The transceiver includes a light source and a detector. The reflector is positioned opposite the transceiver so that at least a portion of the fluid is present between the transceiver and the reflector. The reflector includes a front portion facing the transceiver. Optical energy from the light source incident upon the reflector is reflected towards the transceiver as a return beam of optical energy, wherein the detector senses primarily optical energy of the return beam that is scattered over a range of near forward angles by particulate matter in the fluid.

Abstract: Surface ionization technique for detection of airborne particles whereby each particle is pyrolyzed on a hot surface, releasing its chemical constituents, some of which are ionized at the surface, creating a burst of ions that denote the particle's presence. The hot surface is a catalytic material deposited on an inert substrate heated by an internal heating element. Inert substrates are selected to provide mechanical strength, reduce microphonic noise and make a large catalytic surface area achievable, and hence permit high sensitivity while employing reduced quantities of catalytic materials. By locating the heater within the substrate, its electrical parameters are such that the heater power supply can be simplified. The pulses during "on" parts of the "on-off" cycles are filtered out and not counted. In one embodiment the hot sensor surface is biased to a high voltage by a high bias resistor and is coupled to a pulse-counting preamplifier through a capacitor.