Polaroid Corporation

A Brian Holland

Donald E Mauchan

David L Farrington

Peter H Roth

Jane L Riemenschneider

Paul L Graham

Thomas A Lumenello

A hand-held portable diagnostic assay system for conducting and recording luminescent reactions for generating and recording luminescent read-out signals generated by a testing assembly and recordable on an image recording medium. A carrier assembly receives the testing assembly and is operable between first and second conditions. An assembly prevents unintended insertion of the testing assembly into the carrier assembly when in the first condition, and a mechanism prevents unintended removal of the testing assembly from the carrier assembly when in the second condition.

Apparatus for performing diagnostic testing

There is disclosed a photographic system incorporating a photographic apparatus of the type including an exposure control system which senses and evaluates ambient and infrared spectral energy for controlling camera functions; as well as an accessory for use in combination therewith which compensates for attenuation of infrared energy underwater which infrared energy would otherwise be used in controlling the camera functions. Provision is made for a supplemental source of infrared energy that is directed to such system for a time period and in an amount based upon an evaluation of reflected visible spectral energy from the scene.

Method and apparatus for controlling exposure

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Wayland, MA, United States of America

A Brian Holland