Holofacet laser scanner prototype
date: label: date made
content: ca 1971
name: label: licensee
content: Beiser, Leo
label: maker
content: Beiser, Leo
notes: label: Description (Brief)
content: See US Patent 3614193, Light Scanning System Utilizing Diffraction Optics, issued 19 October 1971 to Leo Beiser. Donor reports: "This prototype consists of a machined aluminum housing in which is mounted a beryllium sphere of 4 inch diameter rotated at a high speed (52,000 rpm) by an electric motor. This motor has 4 wires colored yellow, green, ref, & blue. Two short metal tubes connect to the motor housing. A special coupler connects the sphere to the motor, and precision bearings are used to minimize vibration. The sphere has a single aluminized hologram segment, somewhat keystone in shape, which occupies about 30o of rotation. The hologram forms a zone lens which is capable of focusing a laser beam onto a curved cylindrical surface above and concentric with the rotational axis of the beryllium sphere. (The cylindrical surface is not included in this apparatus.)"
label: Description (Brief)
content: Further discussion noted that this device has a rotation capability of 20,000 elements per line, and a data rate of 200 megahertz. The laser is focused to a point 5 microns in diameter.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Leo Beiser
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0628.01
label: accession number
content: 1986.0628
label: catalog number
content: 1986.0628.01
objectType: label: Object Name
content: Holofacet Scanner
label: Object Name
content: laser
label: Other Terms
content: Holofacet Scanner; Lasers and Masers
physicalDescription: label: Measurements
content: overall: 13 cm x 19 cm x 27 cm; 5 1/8 in x 7 1/2 in x 10 5/8 in