Diamond Turning at a Large Optical Manufacturer

Benjamin, R. J.

doi:10.1117/12.7972286

Cited by 8 publications

(4 citation statements)

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“…Rank Taylor Hobson also developed precision machines for the diamond crushing of glass and other uses in the 1950s [9]. Benjamin [15] reported that aspheric generation had been a continuing activity at Bell and Howell from the 1950s Herbert [16] reported that single crystal diamond tools were used to produce better than a 50 nm finish on computer disks using machines with hydrostatic spindles at Mullard in Great Britain. Lewis [17] reported Du Pont had spent 12 years developing the Ultra-precision Positioner and Shaper (UPPS) in collaboration with the Union Carbide Y-12 (nuclear weapons) plant which used both conventional tools and "diamond knives" (the techniques for developing these near theoretically sharp diamond knives was developed by the biologist and physician FernandezMoran [18] in the 1950s).…”

Section: Historical Perspectivementioning

confidence: 99%

“…For example, the efforts of Bell and Powell converged with efforts at Lawrence Livermore National Laboratory (LLNL) in the 1970s with the introduction of a number of machines that utilized the Moore 3 measurement base and spindles from Professional Instruments. The "Senior" machine is one example [15]. Efforts at Philips remained relatively independent with the production of optics for compact disks and laser vision [21].…”

Section: Historical Perspectivementioning

confidence: 99%

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Application of precision diamond machining to the manufacture of microphotonics components

et al. 2003

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The use of diamonds to generate precision patterns and precision surfaces on a micrometer or nanometer scale has a history that dates back centuries. Uses of diamond in semi-automated machinery can be traced to ruling machines, pantographs, and ornamental turning with "diamond turning" dating back about a century. Poor behavior in machining more common materials (e.g. ferrous alloys) has limited diamond use in traditional industrial machining. The niche of the single crystal diamond is its edge sharpness and the ability to produce near-optical finish in materials such as aluminum, copper and their alloys; however, due to machine limitations, diamond machining remained a novelty until relatively recently. A convergence of machine technologies developed for both weapons and commercial applications led to modern diamond turning. Current turnkey machines can produce contoured surfaces with surface finish in the range of 5 nm R a and long range accuracy of micrometers or less. Macroscopic scale, three axis, diamond machining is a well-developed technology; machining of features on a micrometer and submicrometer scale is a new and rapidly developing application of single crystal diamond machining. The role of this technology in micro-optics replication has yet to be fully defined.

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Section: Historical Perspectivementioning

confidence: 99%

Section: Historical Perspectivementioning

confidence: 99%

Application of precision diamond machining to the manufacture of microphotonics components

et al. 2003

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“…In particular, single point diamond turning is able to meet many of the requirements [45,46]. Most of these techniques are not applicable for the fabrication of microoptical components with dimensions < 1 mm.…”

Section: Mechanical Micromachining -Diamond Turning Of Microoptical Cmentioning

confidence: 99%

Lithographic fabrication technology

Sinzinger

Jahns

2003

Microoptics

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“…The latter reason provides a unique opportunity in production of freeform and aspherical geometries. For this reason, SPDT of Ge has received a considerable attention in the optical fabrication community in large volumes < Corresponding author hossein.shahinian@micro-lam.com (H. Shahinian) ORCID(s): 0000-0001-7511-2910 (H. Shahinian) [10]. The seminal work done by Blackley and Scattergood [4], has been very insightful in understanding the machining mechanism of Ge.…”

Section: Introductionmentioning

confidence: 99%