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A Study concerning the accommodation and convergence relationship

Author: Merrill J Allen; United States. Air Force. Systems Command. Aeronautical Systems Division.
Publisher: Wright-Patterson Air Force Base, Ohio : Life Support Systems Laboratory, Aerospace Medical Laboratory, Aeronautical Systems Division, Air Force Systems Command, United States Air Force, 1961.
Series: ASD technical report, 61-111.
Edition/Format:   Book : National government publication : English
Database:WorldCat
Summary:
The design and technical details of a recording infrared optometer and haploscope are reported. Electronic circuitry, optical design and mechanical design are described. The infrared optometer has proven superior in performance to any known similar apparatus in stability, linearity, speed of response, sensitivity, ease of alignment, and freedom from noise. It is built into a haplo cope of unique fixed-mirror design  Read more...
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Details

Material Type: Government publication, National government publication
Document Type: Book
All Authors / Contributors: Merrill J Allen; United States. Air Force. Systems Command. Aeronautical Systems Division.
OCLC Number: 436452622
Notes: "May 1961."
AD0264937 (from http://www.dtic.mil).
Research supported by the United States Air Force, Air Force Systems Command, Aerospace Medical Laboratory.
Description: v, 16 p. : b ill. ; 28 cm.
Series Title: ASD technical report, 61-111.
Responsibility: Merrill J. Allen.

Abstract:

The design and technical details of a recording infrared optometer and haploscope are reported. Electronic circuitry, optical design and mechanical design are described. The infrared optometer has proven superior in performance to any known similar apparatus in stability, linearity, speed of response, sensitivity, ease of alignment, and freedom from noise. It is built into a haplo cope of unique fixed-mirror design developed for this study. The subject's head is fixed with a dental bite support and his pupil is dilated. Accommodation is recorded as the output of the infrared photomultiplier system while convergence is recorded as the position of the haploscope convergence arm. Both accommodation and convergence are fed into an X-Y recorder. Accommodation is also fed into a strip recorder to obtain measures of accommodation speed, reaction time, and stability.

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