Optical: systems and elements – Mirror – Plural mirrors or reflecting surfaces
Patent
1997-02-25
1999-05-04
Spyrou, Cassandra
Optical: systems and elements
Mirror
Plural mirrors or reflecting surfaces
359856, 359862, 5908, G02B 508, G02B 7182, A61G 700
Patent
active
059009977
ABSTRACT:
For a person who for whatever reason is required to remain prone, i.e. lying face downward, for long periods of time, a parallelepiped housing has a cushion top for comfortably supporting the head of the person. The cushion top defines an opening ("view port") through which the person can look into the housing. Within the housing is a series of mirrors for redirecting the person's field of vision from downward to forward through an front aperture defined by the housing. Preferably the aperture is the absence of a front wall. A manually turned crank reachable by the person allows the person to selectively vertically adjust the his or her field of vision. In the preferred embodiment, the crank rotates a plurality of eccentric cams which pivot a mirror either forward or backward depending on the direction of rotation. This cushion top slides in relation to the housing enough to move the view port away from the mirrors and into a position at which the person can read a book or such supported by an external shelf affixed to the housing, preferably a folding shelf. This invention is particularly useful for patients recovering from certain eye surgery and those having had back surgery or back skin grafts, or an alternative resting position for paraplegics.
REFERENCES:
patent: 2947009 (1960-08-01), McKenzie
patent: 4161352 (1979-07-01), Felix et al.
patent: 4375316 (1983-03-01), Le Vantine
patent: 4531813 (1985-07-01), Van den Berg
patent: 4759621 (1988-07-01), Hawkins
patent: 4856997 (1989-08-01), Mellecker
patent: 5408713 (1995-04-01), Stratton et al.
Sikd-er Mohammad Y.
Spyrou Cassandra
Tighe Thomas J.
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