US5201977A
Expired / Lapsed
US
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Process for producing structures from synthetic single-crystal pieces
Assignee: Individual
•
Filing: 1990-07-31
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Granted: 1993-04-13
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Expires: 2010-07-31
Abstract
Abstract A process for producing structures from synthetic single-crystal pieces having identical major component and crystal systems by chemically bonding to produce integration and simulation. The process of the present invention makes structures of synthetic single-crystals that are placed together like non-crystals. Therefore, with the process of the present invention, new synthetic single-crystal structures of larger or smaller complicated precise shapes having applications in optical, chemical, and physical fields may be produced. The structures from synthetic single-crystal pieces are comprised of a plurality of colorless synthetic single-crystals or colored synthetic single-crystals having the same prime component and either no color or color impurities contained therein. The synthetic single-crystal pieces are optically polished on both parallel ends which intersect at a particular crystal axes with a particular angle and the polished optical end faces are optically bonded with identical axes, identical axial angle, and identical axial ratio. The single-crystal pieces are all uniformally heated to chemically combine them to integrate them together to produce a filter structure having a particular predetermined spectrum of transmission or absorption.
Inventors
- 👤 Hiroaki Aoshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:59
CPC Classifications
C; C30; C30B; C30B33/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
188 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems comprising; shaping a plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angle, and axial ratios for respective sides of said plurality synthetic single-crystals; optically polishing said respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surface in intimate optical contact so they are optically combined; said selected synthetic single-crystal pieces containing color impurities; said synthetic single-crystal pieces being selected from synthetic single-crystal pieces having color tones associated with a particular predetermined spectra; stacking said selected synthetic single-crystal pieces to produce a filter structure having a particular predetermined spectrum of transmission or absorption; uniformly heating said stack of synthetic single-crystal pieces to a predetermined temperature; gradually cooling said stack of synthetic single-crystal pieces; said heating and gradual cooling being performed at least twice so that said stack of synthetic single-crystal pieces are integrated and assimilated together into a single-crystal unit with said respective optically contacting faces chemically bonded.
Claim 2
Dependent Claim
188 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems comprising; shaping a plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angle, and axial ratios for respective sides of said plurality synthetic single-crystals; optically polishing said respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surface in intimate optical contact so they are optically combined; said selected synthetic single-crystal pieces containing color impurities; said synthetic single-crystal pieces being selected from synthetic single-crystal pieces having color tones associated with a particular predetermined spectra; stacking said selected synthetic single-crystal pieces to produce a filter structure having a particular predetermined spectrum of transmission or absorption; uniformly heating said stack of synthetic single-crystal pieces to a predetermined temperature; gradually cooling said stack of synthetic single-crystal pieces; said heating and gradual cooling being performed at least twice so that said stack of synthetic single-crystal pieces are integrated and assimilated together into a single-crystal unit with said respective optically contacting faces chemically bonded.
Claim 3
Dependent Claim
54 words
The process according to claim 1 in which said synthetic single-crystal pieces are selected from the group consisting of red, yellow and blue synthetic single-crystal pieces containing color impurities that have predetermined spectrum transmission and absorption filter characteristics; stacking said selected synthetic single-crystal pieces in a mixed arrangement to obtain a desired color tone.
Claim 4
Dependent Claim
192 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems wherein the selected synthetic single-crystal pieces contain different color impurities, said synthetic single-crystal pieces being selected from synthetic single-crystal pieces having color tones associated with a particular predetermined spectra, the process comprising; shaping a plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angles, and axial ratios for respective sides of said plurality synthetic single-crystal pieces, optically polishing said respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surfaces in intimate optical contact so they are optically combined and to produce a filter structure having a particular predetermined spectrum of transmission or absorption; uniformly heating said stack of synthetic single-crystal pieces to a predetermined temperature; gradually cooling said stack of synthetic single-crystal pieces to ambient temperature; said heating and gradual cooling being performed at least twice so that said stack of synthetic single-crystal pieces are integrated and assimilated together into a single crystal unit with said respective optically contacting faces chemically bonded.
Claim 5
Dependent Claim
192 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems wherein the selected synthetic single-crystal pieces contain different color impurities, said synthetic single-crystal pieces being selected from synthetic single-crystal pieces having color tones associated with a particular predetermined spectra, the process comprising; shaping a plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angles, and axial ratios for respective sides of said plurality synthetic single-crystal pieces, optically polishing said respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surfaces in intimate optical contact so they are optically combined and to produce a filter structure having a particular predetermined spectrum of transmission or absorption; uniformly heating said stack of synthetic single-crystal pieces to a predetermined temperature; gradually cooling said stack of synthetic single-crystal pieces to ambient temperature; said heating and gradual cooling being performed at least twice so that said stack of synthetic single-crystal pieces are integrated and assimilated together into a single crystal unit with said respective optically contacting faces chemically bonded.
Claim 6
Dependent Claim
71 words
The process according to claim 3 in which said synthetic single-crystal pieces are quartz crystals; said heating comprising heating said quartz crystals to a temperature below a transition temperature at which a transition from one crystal state to another crystal state occurs; and including at least one additional heating step of heating said quartz crystals to a temperature above said transition temperature and gradually cooling said quartz crystals to ambient temperature.
Claim 7
Dependent Claim
54 words
The process according to claim 3 in which said synthetic single-crystal pieces are selected from the group consisting of red, yellow and blue synthetic single-crystal pieces containing color impurities that have predetermined spectrum transmission and absorption filter characteristics; stacking said selected synthetic single-crystal pieces in a mixed arrangement to obtain a desired color tone.
Claim 8
Dependent Claim
30 words
The process according to claim 3 in which said synthetic single-crystal pieces are selected from the group consisting of colorless synthetic single-crystal pieces and impurity containing colored synthetic single-crystal pieces.
Claim 9
Dependent Claim
24 words
The process according to claim 6 in which said synthetic single-crystal pieces are selected form the group consisting of synthetic spinel and synthetic corundum.
Claim 10
Dependent Claim
24 words
The process according to claim 3 in which said synthetic single-crystal pieces are selected from the group consisting of synthetic spinel and synthetic corundum.
Claim 11
Dependent Claim
53 words
The process according to claim 4 in which said at least one additional heating step of heating said stack of synthetic single-crystal pieces above said transition temperature comprises heating said stack of synthetic single-crystal pieces to at least 1200° C. for a period of time such that they are integrated and assimilated together.
Claim 12
Dependent Claim
185 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems comprising; selecting synthetic single-crystal pieces from the group consisting of red, yellow and blue synthetic single-crystal pieces containing color impurities that have predetermined spectrum transmission and absorption filter characteristics; stacking said selected synthetic single-crystal pieces in a mixed arrangement to obtain a desired color tone; shaping said plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angles and axial ratios for respective sides of said plurality synthetic single-crystal pieces; optically polishing respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surfaces in intimate optical contact so they are optically combined; uniformly heating said stack of synthetic single-crystal pieces to a predetermined temperature; gradually cooling said stack of synthetic single-crystal pieces; said heating and gradual cooling being performed at least twice so that said stack of synthetic single-crystal pieces are integrated and assimilated together into a single-crystal unit with said respective optically contacting faces chemically bonded.
Claim 13
Dependent Claim
185 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems comprising; selecting synthetic single-crystal pieces from the group consisting of red, yellow and blue synthetic single-crystal pieces containing color impurities that have predetermined spectrum transmission and absorption filter characteristics; stacking said selected synthetic single-crystal pieces in a mixed arrangement to obtain a desired color tone; shaping said plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angles and axial ratios for respective sides of said plurality synthetic single-crystal pieces; optically polishing respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surfaces in intimate optical contact so they are optically combined; uniformly heating said stack of synthetic single-crystal pieces to a predetermined temperature; gradually cooling said stack of synthetic single-crystal pieces; said heating and gradual cooling being performed at least twice so that said stack of synthetic single-crystal pieces are integrated and assimilated together into a single-crystal unit with said respective optically contacting faces chemically bonded.
Claim 14
Dependent Claim
173 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems comprising; selecting synthetic single-crystal pieces from the group consisting of colorless synthetic single-crystal pieces and impurity containing colored synthetic single-crystal pieces wherein at lest two of the selected synthetic single-crystal pieces contain different color impurities; shaping a plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angles, and axial ratios for respective sides of said plurality synthetic single-crystals; optically polishing said respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surfaces in intimate optical contact so they are optically combined; uniformly heating said stack of single-crystal pieces to a predetermined temperature; gradually cooling said stack of single-crystal pieces; said heating and gradual cooling being performed at least twice so that said stack of single-crystal pieces are integrated and assimilated together into a single-crystal unit with said respective optically contacting faces being chemically bonded.
Claim 15
Dependent Claim
173 words
A process for producing structures by chemically bonding selected synthetic single-crystal pieces having identical major components and crystal systems comprising; selecting synthetic single-crystal pieces from the group consisting of colorless synthetic single-crystal pieces and impurity containing colored synthetic single-crystal pieces wherein at lest two of the selected synthetic single-crystal pieces contain different color impurities; shaping a plurality of synthetic single-crystal pieces to have identical prime components of crystal system axes, axial angles, and axial ratios for respective sides of said plurality synthetic single-crystals; optically polishing said respective sides of said plurality of synthetic single-crystal pieces; stacking said plurality of synthetic single-crystal pieces with said respective sides of said optically polished surfaces in intimate optical contact so they are optically combined; uniformly heating said stack of single-crystal pieces to a predetermined temperature; gradually cooling said stack of single-crystal pieces; said heating and gradual cooling being performed at least twice so that said stack of single-crystal pieces are integrated and assimilated together into a single-crystal unit with said respective optically contacting faces being chemically bonded.
Claim 16
Dependent Claim
24 words
The process according to claim 2 in which said synthetic single-crystal pieces are selected from the group consisting of synthetic spinel and synthetic corundum.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-12 | 1996-10-12 | 1997-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-12 | 2000-10-12 | 2001-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-12 | 2004-10-12 | 2005-04-13 | $7700.00 | Window Closed / Lapsed |