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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 24, Iss. 4 — Feb. 15, 1985
  • pp: 527–537

Generation-V dual-Purkinje-image eyetracker

Hewitt D. Crane and Carroll M. Steele  »View Author Affiliations


Applied Optics, Vol. 24, Issue 4, pp. 527-537 (1985)
http://dx.doi.org/10.1364/AO.24.000527


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Abstract

Major advances characterize the Generation-V dual-Purkinje-image (DPI) eyetracker compared with the Generation-III version previously described. These advances include a large reduction in size, major improvements in frequency response and noise level, automatic alignment to a subject, and automatic adjustment for different separation between the visual and optic axes, which can vary considerably from subject to subject. In a number of applications described in the paper, the eyetracker is coupled with other highly specialized optical devices. These applications include accurately stabilizing an image on a subject's retina; accurately simulating a visually dead retinal region (i.e., a scotoma) of arbitrary shape, size, and position; and, for clinical purposes, stabilizing the position of a laser coagulator beam on a patient's retina so that the point of contact is unaffected by the patient's own eye movements.

© 1985 Optical Society of America

History
Original Manuscript: September 10, 1984
Published: February 15, 1985

Citation
Hewitt D. Crane and Carroll M. Steele, "Generation-V dual-Purkinje-image eyetracker," Appl. Opt. 24, 527-537 (1985)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-24-4-527


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References

  1. J. Merchant, R. Morrisette, “Remote Measurement of Eye Direction Allowing Subject Motion Over One Cubic Foot of Space,” IEEE Trans. Biomed. Eng. BME-21, 309 (1974). [CrossRef]
  2. H. D. Crane, C. M. Steele, “Accurate Three-Dimensional Eyetracker,” Appl. Opt. 17, 691 (1978). [CrossRef] [PubMed]
  3. H. D. Crane, “Stabilized Laser Coagulator,” Technical Report, SRI International, Project 7451, Contract NAS2-9934, National Aeronautics and Space Administration (May1979).
  4. T. N. Cornsweet, H. D. Crane, “Eye Tracker Using Purkinje Images,” J. Opt. Soc. Am. 63, 921 (1973). [CrossRef] [PubMed]
  5. H. D. Crane, M. R. Clark, “Three-Dimensional Visual Stimulus Deflector,” Appl. Opt. 17, 706 (1978). [CrossRef] [PubMed]
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  8. H. D. Crane, D. H. Kelly, “Accurate Simulation of Visual Scotomas in Normal Subjects,” Appl. Opt. 22, 1802 (1983). [CrossRef] [PubMed]

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