JAMES R SMITH, JR
Electrician at Grv Ln, Grand Prairie, TX

4371866, Feb 1, 1983

Nov 21, 1980

6/208961

James L. Smith - Grand Prairie TX

The United States of America as represented by the Secretary of the Army - Washington DC

G06K 958

3401463F

Cross-correlation of an image with a reference pattern is done in order to etermine recognizable content and gives a sharp correlation peak whenever both image and pattern are edge-enhanced, darkfield representations. Incoherent light, conventional optics and electronics are used to obtain edge-enhanced, darkfield representations which are obtained by sending the light from the object through a dual-aperture unit to a lens so that a recording medium located forward of the focusing plane of the lens will receive light blocked alternately by the regular (perimeter) stop and the central stop and will record the difference.

4598395, Jul 1, 1986

May 31, 1983

6/499738

James L. Smith - Grand Prairie TX

LTV Aerospace and Defense Co. - Dallas TX

G01D 1534, G11B 700

369100

An erasable optical read/write data storage system is disclosed. The data storage system utilizes a temperature sensitive data storage disk which includes an optical tuning film and a film of thermochromic phase change material which will change from a first phase to a second phase at temperatures in excess of an upper temperature and back to the first phase at temperatures below a lower temperature. An environmentally controlled chamber is provided to maintain the data storage disk at a selected bias temperature between the lower and upper temperatures to ensure that no unintentional phase change will occur. A thermally controlled support member is utilized to temporarily lower the temperature of the disk to a point below the lower temperature, thereby initializing the disk. A modulated laser beam is then focused on the disk to temporarily heat particular portions of the disk to a temperature in excess of the upper temperature, causing a phase change. The same laser beam at lower power levels may be utilized to optically discern the phase of a particular portion of the disk by means of the variations in reflectivity between the two phases.

4635245, Jan 6, 1987

Feb 13, 1986

6/829411

James L. Smith - Grand Prairie TX

LTV Aerospace and Defense Company - Dallas TX

G11B 724, G11B 726

369275

A temperature sensitive data storage element is disclosed, suitable for application in an erasable optical read/write data storage system. The data storage element includes an optical tuning film and a film of thermochromic phase change material which will change from a first phase to a second phase at temperatures in excess of an upper temperature and back to the first phase at temperatures below a lower temperature. In one application, a thermally controlled support member may be employed to temporarily lower the temperature on the storage element to a point below the lower temperature, thereby initializing the element. In one embodiment, the storage element is a planar, suitably circular disk. In use, the storage element is adapted to be initialized by a modulated laser beam which may be focused on the storage element to temporarily heat particular portions of the element to a temperature in excess of the upper temperature, causing a phase change. A method of manufacturing such a storage disk is also taught wherein a reflective metal layer is disposed on a substrate member under a film of phase change material, with a layer of dielectric turning material interposed between the metal layer and the film of phase change material.

4277127, Jul 7, 1981

Dec 3, 1979

6/099262

James L. Smith - Grand Prairie TX
Charles R. Christensen - Athens AL

The United States of America as represented by the Secretary of the Army - Washington DC

G03H 114

350 367

A packageable system employs principles of Doppler holography on near-field objects to produce images from which photographs, transparencies or video reproductions can be made with simultaneous improvements in depth of field, foreground-backregion exposure ratio, and resolution (where degraded by the object medium). The apparatus consists of two units: a main unit containing a laser and optics, and an external platform that rotates at an appropriate angular velocity, through a very small arc, during image recording of an object on the platform.

4390271, Jun 28, 1983

Dec 14, 1981

6/330117

James L. Smith - Grand Prairie TX

The United States of America as represented by the Secretary of the Army - Washington DC

G03B 2732

355 77

An optical-recording process is used to produce an edge-enhanced, darkfie orthographic projection image of complex terrain or target configuration by utilizing two photographs from cameras pointed in the same direction, but at different arbitrary coordinates, to produce edge-enhanced darkfield transparency inputs for the process.

4339178, Jul 13, 1982

Jun 9, 1980

6/158008

James L. Smith - Grand Prairie TX

The United States of America as represented by the Secretary of the Army - Washington DC

G02B 1318

350432

A unique shape is mathematically prescribed for a "lens" which refracts cimated light passing through it in such a way that any linear scale modulating the incident light is distorted into a logarithmic scale at the final image plane.

4494826, Jan 22, 1985

Dec 31, 1979

6/108933

James L. Smith - Grand Prairie TX

G02F 129

350360

A device capable of spatially modulating a collimated read-out light beam with an input image is described. The most essential elements of the key unit in this device include a photoconducting layer, charged grille-structure, an elastomer, and a thin metal anode. Real-time and storage operation is possible.