Glenn A Clarke, 64113 Gillette St, Rochester, NY 14619

6490381, Dec 3, 2002

Jun 1, 2000

09/585664

Robert W. Adair - Santa Rosa CA
Glenn A. Clarke - Rohnert Park CA
Bryant P. Hichwa - Santa Rosa CA
Christopher Iaconis - Santa Rosa CA
Douglas G. Jensen - San Rafael CA
Stephen C. Olson - Santa Rosa CA
James W. Seeser - Saint Louis MO
Basil L. Swaby - Santa Rosa CA

Optical Coating Laboratory, Inc. - Santa Rosa CA

G02B 642

385 16, 385 18, 385 22, 385 49

The absorption of a spacer material in a Fabry-Perot type structure is changed to achieve an optical switching function. In one embodiment, the spacer material is a semiconductor material and an electronic control signal changes the Fabry-Perot between a transmissive state and a reflective state. In the reflective state, the device operates as a switch can be modeled as a mirror on a substrate of quasi-infinite thickness. In a further embodiment, a wavelength-selective optical component is placed between the input of the switch and the Fabry-Perot structure to improve the spectral response of the switch.

6809859, Oct 26, 2004

Nov 19, 2002

10/299208

Turan Erdogan - Spencerport NY
Ligang Wang - Rochester NY
Glenn Clarke - Scottsville NY

Semrock, Inc. - Rochester NY

F21V 904

359359, 359360, 359361, 359436

An optical filter including at least one substrate and first and second thin-film interference filters disposed directly on the substrate. The interference filters include a plurality of hard coating thin film layers of alternating high and low index of refraction. A fluorescence spectroscopy system and method of selecting a band of wavelengths from light in a fluorescence spectroscopy system are also provided.

7068430, Jun 27, 2006

May 6, 2004

10/840134

Glenn Clarke - Rochester NY, US
Turan Erdogan - Spencerport NY, US
Joseph T. Foss - Rochester NY, US
Ligang Wang - Rochester NY, US

Semrock, Inc. - Rochester NY

G02B 5/28

359589, 359587, 359588, 359580

Highly discriminating optical edge filters and methods of making the same are disclosed. The optical edge filters have an edge steepness greater than about 0. 8% as measured by dividing (a) the edge width from the 50% transmission wavelength to the optical density 6 (“OD6”) wavelength by (b) the 50% transmission wavelength. The optical filters also have an average transmission above about 95%. The methods for making such filters accurately determine when deposition of each layer of the filter should terminate. The methods include calculating theoretical transmission data for a layer of the filter and calculating an expected deposition duration for the layer. The methods also include measuring transmission through the layer during deposition for a period less than the expected deposition duration. When the measuring period elapses, a new deposition duration is calculated based upon the theoretical transmission data and the measured transmission data, thereby providing an accurate deposition duration for the layer.

7411679, Aug 12, 2008

Sep 29, 2004

10/953483

Turan Erdogan - Spencerport NY, US
Ligang Wang - Rochester NY, US
Glenn Clarke - Rochester NY, US

Semrock, Inc. - Rochester NY

G01N 21/25

356417

An optical filter including at least one substrate and first and second thin-film interference filters disposed directly on the substrate. The interference filters include a plurality of hard coating thin film layers of alternating high and low index of refraction. A filter set capable of providing low image shift is also provided.