公开(公告)号：US20180272493A1

公开(公告)日：2018-09-27

申请号：US15467202

申请日：2017-03-23

申请人： John Traina ,  Edward L. McCall ,  Jeremy Lehning

发明人： John Traina ,  Edward L. McCall ,  Jeremy Lehning

IPC分类号： B24B9/14 ,  B24B13/005

CPC分类号： B24B9/146 ,  B24B13/005

摘要： 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.

公开(公告)号：US20200218092A1

公开(公告)日：2020-07-09

申请号：US16738312

申请日：2020-01-09

申请人： Edward L. McCall ,  John Traina

发明人： Edward L. McCall ,  John Traina

IPC分类号： G02C11/00 ,  H04B5/00 ,  G06K7/14 ,  G02C5/00

摘要： 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.

公开(公告)号：US4630482A

公开(公告)日：1986-12-23

申请号：US745725

申请日：1985-06-17

申请人： John Traina

发明人： John Traina

IPC分类号： G01F1/66 ,  G01N29/024 ,  G01N29/38 ,  G01N29/00

CPC分类号： G01N29/38 ,  G01F1/667 ,  G01N29/024 ,  G01N2291/0217 ,  G01N2291/02836 ,  G01N2291/02881

摘要： A method and apparatus for measurement of time required for an ultrasonic tone burst to traverse a medium from a transmitter to a receiver is disclosed. Two transducers separated by a distance through which a medium flows alternatively act as a transmitter and then a receiver of ultrasonic signals. After a signal has been emitted from the first ultrasonic transducer, the second transducer is electronically checked for receipt of the ultrasonic signal. That checking is done at certain time intervals, preferably 4 microseconds, over a selected period of time. Samples are taken over each time interval. For each sample time slot the presence and strength of an output signal is measured. An address in a memory is selected which corresponds to each sampling time slot. Each input sample is stored in memory at an address which corresponds to the time slot at which the input sample was taken. This procedure is repeated for several time intervals of the same length using subsequent ultrasonic signals from the transducer. On each subsequent transmission the input samples are combined to the input samples stored in the memory thereby producing a corresponding new process sample at each address. The process samples are periodically examined and preferably compared to a threshold level. Whenever one process sample reaches this threshold level, the time which corresponds to the time slot containing that new process sample is identified. The identified time is then taken as the time required for the signal to transverse the medium. This time can then be used to calculate various properties of the material which was traversed including the speed of sound and true gaseous flow independent of temperature, turbulance and density of the medium, distance, specific heat ratio of the medium being transversed, carbon dioxide concentration in the medium and temperature over a line path.

摘要翻译： 公开了一种用于测量超声波脉冲串从发射机到接收机穿过介质所需的时间的方法和装置。 两个传感器间隔开一个介质流动的距离，作为发射器，然后是超声信号的接收器。 在从第一超声换能器发出信号之后，电子地检查第二换能器以接收超声波信号。 该检查在选定的时间段内以特定时间间隔，优选4微秒完成。 每个时间间隔取样。 对于每个采样时隙，测量输出信号的存在和强度。 选择对应于每个采样时隙的存储器中的地址。 每个输入样本以对应于输入样本被采集的时隙的地址存储在存储器中。 使用来自传感器的后续超声信号，重复该过程相同长度的几个时间间隔。 在每个随后的传输中，将输入样本组合到存储在存储器中的输入样本，从而在每个地址处产生相应的新的处理样本。 定期检查过程样品，并优选与阈值水平进行比较。 每当一个流程样本达到该阈值水平时，识别与包含该新流程样本的时隙相对应的时间。 然后将识别的时间作为信号横向介质所需的时间。 此时可以用于计算所有材料的各种性质，包括声速和真实气体流量的独特温度，介质的湍流和密度，距离，横向介质的比热比，二氧化碳浓度 在中等温度下通过线路。