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Class Information
Number: 359/231
Name: Optical: systems and elements > Light control by opaque element or medium movable in or through light path > Electro-mechanical > String or ribbon type
Description: Subject matter wherein electric current is applied across a resilient, electrically conducting opaque element which as a result of its location in the field of an electromagnet vibrates, thus interrupting a light path or a portion thereof in accordance with variations in the current or in the strength of the field of the electromagnet.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7495814 |
Raster scanning-type display device using diffractive optical modulator |
Feb. 24, 2009 |
| 7474455 |
Deformable mirror |
Jan. 6, 2009 |
| 7446922 |
Interdigitating diffractive light modulator |
Nov. 4, 2008 |
| 7310180 |
Dielectric spacer for enhanced squeeze-film damping of movable members of MEMS devices |
Dec. 18, 2007 |
| 7262898 |
Apparatus for reducing drops in a transmission spectrum due to inter-pixel gaps |
Aug. 28, 2007 |
| 7075700 |
Mirror actuator position sensor systems and methods |
Jul. 11, 2006 |
| 7042624 |
Non-uniform light valve |
May. 9, 2006 |
| 7027202 |
Silicon substrate as a light modulator sacrificial layer |
Apr. 11, 2006 |
| 6967758 |
System and method for sub-pixel electronic alignment |
Nov. 22, 2005 |
| 6922271 |
Tunable phase grating with optically linearized response |
Jul. 26, 2005 |
| 6919983 |
Microelectromechanical device with continuously variable displacement |
Jul. 19, 2005 |
| 6813059 |
Reduced formation of asperities in contact micro-structures |
Nov. 2, 2004 |
| 6781739 |
High-frequency AC drive for MEM devices |
Aug. 24, 2004 |
| 6762882 |
System and method for use of dark field fourier diaphragm in multi-frequency imaging |
Jul. 13, 2004 |
| 6750999 |
Reconfigurable quasi-optical unit cells |
Jun. 15, 2004 |
| 6724515 |
Conformal grating device for producing enhanced gray levels |
Apr. 20, 2004 |
| 6717714 |
Method and system for generating enhanced gray levels in an electromechanical grating display |
Apr. 6, 2004 |
| 6678085 |
High-contrast display system with scanned conformal grating device |
Jan. 13, 2004 |
| 6654155 |
Single-crystal-silicon ribbon hinges for micro-mirror and MEMS assembly on SOI material |
Nov. 25, 2003 |
| 6646778 |
Grating light valve with encapsulated dampening gas |
Nov. 11, 2003 |
| 6643065 |
Variable spacing diffraction grating |
Nov. 4, 2003 |
| 6624944 |
Fluorinated coating for an optical element |
Sep. 23, 2003 |
| 6614570 |
Shutter for fiber optic systems |
Sep. 2, 2003 |
| 6594060 |
Electromechanical conformal grating device with improved optical efficiency and contrast |
Jul. 15, 2003 |
| 6560002 |
Optical switch |
May. 6, 2003 |
| 6466354 |
Method and apparatus for interferometric modulation of light |
Oct. 15, 2002 |
| 6445433 |
Pixel structure having deformable material and method for forming a light valve |
Sep. 3, 2002 |
| 6411425 |
Electromechanical grating display system with spatially separated light beams |
Jun. 25, 2002 |
| 6384959 |
Optical data modulation system with self-damped electromechanical conformal grating |
May. 7, 2002 |
| 6307663 |
Spatial light modulator with conformal grating device |
Oct. 23, 2001 |
| 6282012 |
Method for damping ribbon elements in a micromechanical grating device by selection of actuation waveform |
Aug. 28, 2001 |
| 6268948 |
Micromachined reflective light valve |
Jul. 31, 2001 |
| 6229650 |
Optical imaging head having a multiple writing bean source |
May. 8, 2001 |
| 6213607 |
Exposure apparatus and field stop thereof |
Apr. 10, 2001 |
| 6147789 |
High speed deformable mirror light valve |
Nov. 14, 2000 |
| 6130770 |
Electron gun activated grating light valve |
Oct. 10, 2000 |
| 5940216 |
Window tinting apparatus |
Aug. 17, 1999 |
| 5681103 |
Electrostatic shutter particularly for an automotive headlamp |
Oct. 28, 1997 |
| 5589933 |
Optical fiber test instrument with mechanically positioned attenuator |
Dec. 31, 1996 |
| 5384662 |
Precision optical slit for high heat load or ultra high vacuum |
Jan. 24, 1995 |
| 5250968 |
Image projecting unit |
Oct. 5, 1993 |
| 4488784 |
Capacitively coupled electrostatic device |
Dec. 18, 1984 |
| 3989357 |
Electro-static device with rolling electrode |
Nov. 2, 1976 |
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