Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2004-10-26
2009-06-23
Mack, Ricky L (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C351S205000, C351S222000, C351S243000
Reexamination Certificate
active
07549749
ABSTRACT:
The present invention relates to a visual stimulator, which comprises a light stimulation source, a regulable attenuator of light, mirrors for reflecting light and light detectors. The visual stimulator in accordance with the invention comprises a mirror chamber and a mirror tube constructed of mirrors in which the reflecting points of the mirrors form various angles with respect to each other, and which have been connected to each other such that light beams disperse from the mirror tube to the mirror chamber without hindrance regardless of the location of the object to be examined or a part of it in the mirror chamber and though the location of the object or a part of it would vary in certain limits in the mirror chamber, and that to one end of the mirror tube, viewed away from the mirror chamber a light stimulation source has been directed.
REFERENCES:
patent: 4255023 (1981-03-01), House
patent: 4618230 (1986-10-01), Ens et al.
patent: 5416336 (1995-05-01), Koivulehto
patent: 5506633 (1996-04-01), Sperling
patent: 43 01 483 (1994-08-01), None
patent: 1648336 (1991-05-01), None
patent: WO-01/78586 (2001-10-01), None
patent: WO-02/41768 (2002-05-01), None
Hawlina, M. et al., “HK-Loop Ag Fibre Electrode for Clinical Eletroretinography”, 1992, Documenta Ophthalmalogica 81, pp. 252-259.
Bayer, A. et al., “Comparisons of the Amplitude Size and the Reproducibility of Three Different Electrodes to Record the Corneal Flash Electroretinogram in Rodents”, 2000, Documenta Ophthalmalogica 98, pp. 233-246.
Ahonen Janne
Urtti Arto
Valjakka Antti
Harrington & Smith PC
Mack Ricky L
Thomas Brandi N
Valjakka Antti
LandOfFree
Visual stimulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Visual stimulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Visual stimulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4078904