Electronic flash apparatus for reducing the incidence of human e

Details Electronic flash apparatus for reducing the incidence of human e Electronic flash apparatus for reducing the incidence of human e

1990-03-26

1991-09-24

Hix, L. T.

G03B 700

Patent

active

050517686

ABSTRACT:
Electronic flash apparatus is provided that is capable of reducing the incidence of eyelid closure of a subject during an exposure interval when the subject is illuminated with visible light from the electronic flash apparatus immediately prior to the exposure interval. The electronic flash apparatus includes a visible light flash tube and an electrical circuit coupled thereto for controlling flash tube energization and de-energization immediately prior to and during an exposure interval. The electrical circuit includes apparatus for coupling the flash tube to a suitable source of electrical energy and for applying a trigger signal to the flash tube in order to illuminate the subject with a finite amount of visible light immediately prior to an exposure interval that will not cause the eyelids of the subject to blink in response thereto during the exposure interval.

REFERENCES:
patent: 3173347 (1967-03-01), Stimson et al.
patent: 4299464 (1981-11-01), Cushman
patent: 4357083 (1982-11-01), Johnson et al.
patent: 4839686 (1989-06-01), Hosomizu et al.

Affiliated with

Also associated with

Rating

Electronic flash apparatus for reducing the incidence of human e does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic flash apparatus for reducing the incidence of human e, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic flash apparatus for reducing the incidence of human e will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1700002