Polaroid Corporation

Other

Senshin Capital, LLC

Arthur G LaRocque

George D Whiteside

Bruce K Johnson

Leonid Winestein

Mukhtar A Chinwala

John L Landers

Ford R Ennis, Jr

Bruck K Johnson

A method and system for authenticating print media includes providing a digital memory physically associated with a holder of print media, and storing data in the digital memory, which data is adapted to be authenticated to allow use of the print media. In a preferred embodiment the system and method are capable of detecting the print medium present in a printer and adjusting printing characteristics of a printer with respect to the specific print medium present.

Thermal printing system and method

An automatic camera apparatus includes an integrated exposure control system comprising a sonar rangefinder for first determining camera-to-subject range and then setting the objective lens focus condition to correspond to the determined camera-to-subject distance and thereafter firing an electronic flash at an appropriate exposure aperture also corresponding to the determined camera-to-subject distance in a manner providing for a proportional fill-in flash under conditions of high ambient scene light intensity.

Camera with auto ranging focusing and flash fire control

A photographic camera apparatus includes an improved exposure and electronic flash fire control system comprising a single light source for providing a visual indication to the photographer of electronic flash charging and a control light detectable by the exposure control system as an indicator of the commencement of an exposure interval.

Photographic camera with dual purpose light indicator

A photographic camera apparatus includes an improved exposure and electronic flash fire control system comprising a single photoresponsive element. The system provides a scene brightness measurement prior to a photographic exposure interval, an exposure influencing event during the exposure interval responsive to the photoresponsive element providing an indication of the commencement of the photographic exposure interval and an exposure terminating signal responsive to the photoresponsive element detecting a selected amount of scene light corresponding to the exposing scene light admitted during the exposure interval.

Photographic exposure control system utilizing a single photocell for

A photographic camera control system is provided for varying the time at which a source of artificial illumination is energized subsequent to the commencement of a photographic exposure interval in accordance with variations in the ambient scene light intensity and the camera-to-subject range. The control system operates to energize the source of artificial illumination at later times and hence larger aperture values under conditions of insignificant ambient scene light intensity than under conditions of substantially higher ambient scene light intensity for identical camera-to-subject distances. The control system additionally operates to control the energization of the source of artificial illumination during a photographic exposure interval occurring under conditions of substantially high ambient scene light intensity so that a select portion of the optimum film exposure value may be directly attributable to the ambient scene light while the remaining portion of the optimum exposure value is directly attributable to the artificial scene light provided by the source of artificial illumination.

Growing community of inventors

Belmont, MA, United States of America

Arthur G LaRocque