Abstract:
A photographic process in which multiple low-intensity, discrete light flashes are used to expose a photographic emulsion in order to mitigate the formation of spurious exposed areas in the image which are produced by a single, high-intensity flash exposure. Improved resolution also results from the multiple flash process.
Abstract:
A SELECTIVELY OPERATIVE RELAY LENS IS PROVIDED IN AN OPTICAL SYSTEM WHICH IS PART OF APPARATUS THAT DETERMINES THE POSITIONAL AND ANGULAR ORIENTATION OF AN OBJECT WITH RESPECT TO A GIVEN REFERENCE SYSTEM. WHEN THE RELAY LENS IS INOPERATIVE, THE OPTICAL SYSTEM PROVIDES AN IMAGE THAT IS INDICATIVE OF THE POSITION OF THE OBJECT RELATIVE TO TWO PREDETERMINED REFERENCE AXES OF THE REFERENCE SYSTEM AND THE ANGULAR ORIENTATION OF THE OBJECT RELATIVE TO A THIRD REFERENCE AXIS OF THE SYSTEM, THE THREE REFERENCE AXES BEING MUTUALLY ORTHOGONAL WITH RESPECT TO EACH OTHER. WHEN THE RELAY LENS IS OPERATIVE, THE OPTICAL SYSTEM PROVIDES AN IMAGE WHICH IS INDICATIVE OF THE ANGULAR ORIENTATION OF THE OBJECT RELATIVE TO THE FIRST TWO MENTIONED REFERENCE AXES.