Accession Number : AD0892433

Title :   Wide Angle, Infinite-Depth-of-Field Optical Pickup for Visual Simulation.

Descriptive Note : Final rept. Apr 68-Feb 71,

Corporate Author : FARRAND OPTICAL CO INC VALHALLA NY

Personal Author(s) : Nagler, Albert H. ; Mazurkewitz, Anthony R.

Report Date : NOV 1971

Pagination or Media Count : 100

Abstract : During Phase I of the program, a study was undertaken to establish the most favorable approach toward producing a wide-angle, infinite depth-of-field, inclined-image plane viewing probe for purposes of simulation. The second phase involved fabrication, test and evaluation of an engineering feasibility model of such a device. This report describes both phases of the program. Previous optical pickups for flight simulators were limited by slant range focus at close approaches to a model. Obtaining closer approaches has important size, cost and versatility advantages in making simulator terrain models and support equipment. Phase I study results indicated the feasibility of producing a 140 deg circular field pickup with full pitch capability and a close approach of 4.1 mm. A preliminary but realistic design was developed and evaluated. The design approach was confirmed by photographing a runway model with a modified 110 deg probe. Other concepts examined that had promise of improving resolution were dual sensor outputs and dual relays. Component trade-offs, simplifications, and techniques were sufficiently developed for the design and fabrication phase of the program to proceed directly.

Descriptors :   *OPTICAL EQUIPMENT), (*FLIGHT SIMULATORS, (*DISPLAY SYSTEMS, LANDING FIELDS), (*AIRCRAFT LANDINGS, SIMULATION), (*TERRAIN MODELS, DISPLAY SYSTEMS), OPTICS, THEORY, REFRACTION, DISTORTION, VISION, FOCUSING, LENSES, RANGE(DISTANCE), SOFT LANDINGS, BACKGROUND, PITCH(MOTION), RESOLUTION, ROLL, PHOTOGRAPHIC FILM, VIDICONS, PRISMS(OPTICS), TRAINING.

Subject Categories : Flight Control and Instrumentation
      Test Facilities, Equipment and Methods
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE