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Patent No. 5678617

Method and apparatus for making a drink hop along a bar or counter

A method for generating a drink which appears to hop from a remote spot on the bar or counter and take one or more leaps, before landing in a patron's glass.

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Class 359/496 - Prisms


Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein the birefringent element is formed
No. of patents: 248
Last issue date: 08/05/2008


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NumberTitleIssue Date
4610511Assembly and method for producing specific optical interference patterns
An assembly is provided which employs a light source that directs slightly convergent light rays of visual frequencies towards a first polarizing means. The first polarizing means polarizes the light rays and directs them towards a first lateral face of a...
09/09/1986
4514047On-axis achromatic quarterwave retarder prism
A quarterwave retarder prism such as can be used in optical recording has a shape similar to a dove prism, and has three internal reflections, with the retarder prism designed to have the emerging light beam on the same axis or collinear with the entering...
04/30/1985
4502783Alignment stabilization prism
Apparatus (20) provides a stable optical reference in the presence of optical source jitter. It comprises a beamsplitter cube (21) having an input surface 22, an output surface 23, a totally reflecting surface (24), and a partially reflecting diagonal sur...
03/05/1985
4429378Optical pickup device for use in a video and/or audio disc player
An optical pickup device is placed in a video and/or audio disc player operative to reproduce information recorded in the form of an optical pattern such as a train of pits on a recording disc, in which the direction of light beam emitted from a light sou...
01/31/1984
4407566Optical filter
A filter element for a narrow-passband optical filter comprises a birefringent crystal (10) having a rectangular parallelopiped configuration with an entrance face (11), an exit face (12) and side walls (21, 22, 23, 24). The optic axis (25) of the crystal...
10/04/1983
4198123Optical scrambler for depolarizing light
An optical scrambler for depolarizing a beam of polarized incident light comprises two birefringent prisms having orthometric optic axis. The prisms are juxtaposed with their inclined surfaces joined in optically wrung relationship to receive the incident...
04/15/1980
3998524Birefringent polarization prism with a large angular aperture
An apparatus for polarizing natural light incident on a polarizer with an intermediate layer of one birefringent or biaxial material mounted between a pair of prism substrates of a second birefringent or biaxial material with a liquid or other index match...
12/21/1976
3982819Fluid gap glan-laser prism
A Glan-laser prism polarizer in which spaced prisms are surrounded with an index of refraction matching fluid and the gap between the prisms is also filled with the fluid....
09/28/1976
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