US 9,857,550

Method for reducing the effects of element misalignment in an optical system

US 9,438,810

Dual camera system

US 9,420,190

Dual camera system

US 9,118,826

Dual camera system

US 9,046,939

Optical navigation device with non-spherical ellipsoidal reflector

US 8,913,145

Dual camera system

US 8,900,130

Otoscanner with safety warning system

US 8,900,129

Video otoscanner with line-of-sight probe and screen

US 8,900,128

Otoscanner with camera for video and scanning

US 8,900,127

Otoscanner with pressure sensor for compliance measurement

US 8,900,126

Optical scanning device

US 8,900,125

Otoscanning with 3D modeling

US 8,773,784

System for reducing the effects of component misalignment in an optical system

US 8,715,173

Otoscanner with fan and ring laser

US 8,711,097

Optical navigation device with image sensor and inner housing

US 8,542,287

Dual camera system

US 8,238,042

Reflective axicon systems and methods

US 8,077,949

Apparatus for caries detection

US 7,992,835

Kinematic mirror mount adjustable from two directions

US 7,764,440

Dual focal length optical system

US 7,702,139

Apparatus for caries detection

US 7,609,958

Automatic focus system calibration for image capture systems

US 7,593,597

Alignment of lens array images using autocorrelation

US 7,573,654

Dual focal length optical system

US 7,265,911

Zoom lens system having variable power element

US 7,165,842

Autostereoscopic display apparatus having glare suppression

US 7,111,939

Image display system with body position compensation

US 7,088,530

Passively aligned optical elements

US 7,061,695

Three element optical system

US 6,877,859

Projection apparatus using telecentric optics

US 6,847,494

Optical magnifier suitable for use with a microdisplay device

US 6,795,650

Camera having shared optics for optical viewfinding and for electronic capture and display

US 6,785,054

Optical magnifier suitable for use with a microdisplay device

US 6,377,404

Reverse telephoto zoom lens

US 6,354,472

Filament style glue applicator

US 6,151,171

Zoom assembly having zoom lens with plurality of lens groups that move together or differentially for zooming and focusing

US 6,075,549

Lens adjustment assembly for electronic digital imaging apparatus

US 6,072,519

Dual resolution printer

US 6,031,561

Printer system having a plurality of light sources of different wavelengths

US 5,999,330

Zoom lens

US 5,966,252

Bravais lens

US 5,966,247

Compact zoom lens

US 5,886,829

Compact zoom lens with large zoom ratio

US 5,835,280

F-theta lens

US 5,751,334

Printer with support shoe and media metering therein

US 5,745,157

Digital printer with support shoe and translatable media guide member therein

US 5,726,809

Camera system and an optical adapter to reduce image format size

US 5,721,582

Printer with vacuum shoe and media cut off member therein

US 5,703,726

Reverse telephoto lens

US 5,671,092

Reverse Galilean finder with projected front window

US 5,659,349

Static dissipating member for imaging apparatus

US 5,633,736

Scan lens and an optical scanner system incorporating two deflectors

US 5,604,637

Zoom lens

US 5,589,989

Compact objective lens system

US 5,572,369

Triplet-type lens for use in a compact photographic camera

US 5,500,703

Real image zoom viewfinder

US 5,499,069

Camera system and an optical adapter to reduce image format size

US 5,529,412

Print guide mechanism

US 5,392,662

Leadscrew coupler

US 5,254,919

Encoder system using linear array sensor for high resolution

US 5,179,413

System for illuminating a linear zone which reduces the effect of light retroreflected from outside the zone on the illumination

US 5,125,734

Random access module for slide projector

US 4,991,946

Finite conjugate projection lens system

US 4,929,872

Light bulb socket soft start and power interrupt assembly

US 4,904,055

Variable aperture formed by linearly moving elements

US 4,875,103

Apparatus and method for aligning a repositionable imaging sensor with a photographic image in a film video system

US 4,864,408

Light box with improved spectral response for CCD imager

US 4,858,003

Mechanism for handling slides and film strips

US 4,819,073

Film video player apparatus with selective image composing controls

US 4,811,107

Video player sensor cable

US 4,803,557

Adjustable mount for image sensor

US 4,547,054

Finger over the lens detecting apparatus

US 4,493,547

Data recording photographic camera


“Molded Glass Optics Hit the Target for Precision and Cost,” E. Patton, D. Stites, S. Cahall, December 2007, Laser Focus World.

"Real-time Optically Processed Automated Inspection System Based on Arbitrary Moiré Contours,"  R.A. Andrade, B.S. Gilbert III, S.C. Cahall, J.H. Blatt, S.P. Kozaitis, Selected SPIE Papers, CD-ROM Series, 6, Firooz Sadjadi, ed., 1999.

"Design of Arbitrary Projection Patterns for Object Recognition,"  S.C. Cahall, B.S. Gilbert III, J.H. Blatt, 1994 SPIE Proceedings, Paper 2348-04.

“Real-Time Generation of Intersection of Surfaces for Welding by Video Moiré,”  S.C. Cahall, J.A. Hooker, and J.H. Blatt.  1993 SPIE Proceedings, Paper 2066-16.

“Variable Resolution Video Moiré Error Map System for Inspection of Continuously Manufactured Objects,”  J.H. Blatt, S.C. Cahall, and J.A. Hooker.  1992 SPIE Proceedings, Paper 1821: 1821-34.

“Generation of Surface Shape from Variable Resolution Video Moiré Contours,”  J.H. Blatt, S.C. Cahall, B.S. Gilbert, J.A. Hooker, G.L. Wallace.  1992 SPIE Proceedings, Paper 1821: 1821-35.

“Detection and Location of Pipe Damage by Artificial Neural Net Processed Moiré Error Maps,”  B.G. Grossman, F.S. Gonzalez, J.H. Blatt, and S.C. Cahall.  1992 SPIE Proceedings, Paper 1821: 1821-47.