Configurable grating based on surface relief pattern for use...

Optical: systems and elements – Optical modulator – Light wave temporal modulation

Reexamination Certificate

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Reexamination Certificate

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06930817

ABSTRACT:
A variable modulator assembly includes an active layer. A deformable layer is in operational contact to a first surface of the active layer, and an electrode configuration consisting of a plurality of electrodes is in operational contact to a second surface of the active layer. A controller is configured to selectively apply a variable signal to the selected electrodes of the electrode configuration. Application of the variable signal causes the deformable layer to reconfigure to an alternated shape having distinct peaks and valleys. The distance between the peaks and valleys being determined by the value of the applied variable signal.In an optical modulating method, a variable modulator assembly is positioned to receive light at the deformable layer from a light source. Activation of an electrode configuration by the controller generates a variable signal, causing electrostatic charges to deform the deformable layer into a pattern corresponding to the activated electrodes.

REFERENCES:
patent: 3942048 (1976-03-01), Laude et al.
patent: 4115747 (1978-09-01), Sato et al.
patent: 4327966 (1982-05-01), Bloom
patent: 4494826 (1985-01-01), Smith
patent: 4529620 (1985-07-01), Glenn
patent: 4626920 (1986-12-01), Glenn
patent: 5124834 (1992-06-01), Cusano et al.
patent: 5459610 (1995-10-01), Bloom et al.
patent: 5526172 (1996-06-01), Kanack
patent: 5661592 (1997-08-01), Bornstein et al.
patent: 5677783 (1997-10-01), Bloom et al.
patent: 5699468 (1997-12-01), Farries et al.
patent: 5841579 (1998-11-01), Bloom et al.
patent: 5867301 (1999-02-01), Engle
patent: 5999319 (1999-12-01), Castracane
patent: 6307663 (2001-10-01), Kowarz
patent: 6363202 (2002-03-01), Goodfellow
patent: 6389190 (2002-05-01), Solgaard et al.
patent: 6421179 (2002-07-01), Gutin et al.
patent: 6556727 (2003-04-01), Minikata et al.
patent: 2003/0025563 (2003-02-01), Christensen
patent: 0 434 139 A2 (1991-06-01), None
patent: WO 02/091024 (2002-11-01), None
Brinker, W. et al.,Deformation Behavior of Thin Viscoelastic Layers Used in an Active-Matrix-Addressed Spatial Light Modulator; Proceedings of the SPIE; SPIE, Bellingham, Va., U.S.; vol. 1018, Sep. 22, 1988, pp. 79-85; XP002042949, ISSN: 0277-786X; *p. 79-p. 80; Figures 1, 5, 9.
N.K. Sheridon, “The Ruticon Family of Erasable Image Recording Devices,”IEEE Transactions on Electron Devices, ED-19, No. 9, Sep. 1972, pp. 1003-1010.
N.K. Sheridon, et al., “The Optical Processing Capabilities of the Ruticon,” SPIE vol. 128,Effective Utilization of Optics in Radar Systems(1977), pp. 244-252.
Kück, et al., “Deformable Micromirror Devices as Phase-Modulating High-Resolution Light Valves”,Sensors and Actuators A54, (1996) p.p. 536-541.
Brown, et al., “Micromachined, Electrostatically-Actuated Optical Attenuators/Switches Fabricated by Fusion Bonding of Single-Crystal, Ultra-Thin Silicon Wafers”,ECS Proceedings, vol. 99-35, to be published.
“Lightconnect Introduces First MEMS-Based Digital Variable Optical Attenuator Optimized for Open-Loop Control”, Dec. 5, 2001, Newark, Calif., Press Releases, http://www.lightconnect.com
ews
ews_release120501b.shtml.
Sakarya, S., et al.,Technology of Reflective Membranes for Spatial Light Modulators; Sensors and Actuators A 97-98(2002, pp. 468-472) 2002 Elsevier Science B.V.
Sakarya, S., et al.,Low-Cost Technological Approaches to Micromachined Spatial Light Modulators, Proceedings of SPIE vol. 4825 (2002), pp. 264-271; 2002 SPIE—0277-786X/02.
Sakarya, S., et al.,Technology for Integrated Spatial Light Modulators Based on Reflective Membranes, Proceedings of SPIE vol. 4493 (2002), pp. 21-28; 2002 SPIE—0277-786X/02.
Sakarya, S., et al.,Technology for Integrated Spatial Light Modulators Based on Viscoelastic Layers, Laboratory of Electronic Instrumentation, Delft University of Technology, pp. 672-675.
Sakarya, S., et al.,Technology of Reflective Micromachined Pixelated Membranes for Use in Spatial Light Modulators; Proceedings of the SeSens workshop, pp. 690-691, Dec. 01, 2000; ISBN:90-74561-24-3; STW-2000 09 26-02:112.
Vdovin, G., et al., Technology and Applications of MicromachinedMembrane Deformable Mirrors; 0-7803-4953-9/98, 1998 IEEE, 2 pages.
Srinivasan, Uma, et al.,Electrostrictive Elastomer Based Diffractive Modulator for Use as a Variable Optical Attenuator; D vice Hardware Laboratory, Palo Alto Res arch Center Incorporated, 2 pages.

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