초록 ▼

A stabilized visual system for directing a beam of energy, such as a laser beam, to a specific selected location in an eye and maintaining the beam in the selected location regardless of eye movements. The system employs a fundus illumination and monitoring device which illuminates the fundus of an

A stabilized visual system for directing a beam of energy, such as a laser beam, to a specific selected location in an eye and maintaining the beam in the selected location regardless of eye movements. The system employs a fundus illumination and monitoring device which illuminates the fundus of an eye and allows an observer simultaneously to observe the illuminated fundus, an eye tracker which continuously measures the position and changes in position of the illuminated eye and produces electrical signals in response to the changes in position of the eye, and an input beam stabilizer which directs a beam of electromagnetic energy to a selected location in the eye. Servomotor driven optical elements (e.g., a pair of mirrors) are positioned in the path of the beam of electromagnetic energy and are connected to receive and be driven by the electrical signals produced by the eye tracker so that the electromagnetic beam is maintained at the specific selected location in the eye even though the eye moves.

대표청구항 ▼

A stabilized visual system including fundus illumination and monitoring means simultaneously to illuminate and observe the fundus of an eye, eyetracker means capable of distinguishing between eye translation and rotational movements regardless of the refractive condition of the said eye and continuo

A stabilized visual system including fundus illumination and monitoring means simultaneously to illuminate and observe the fundus of an eye, eyetracker means capable of distinguishing between eye translation and rotational movements regardless of the refractive condition of the said eye and continuously measuring changes in position of the said eye, said eye tracker means generating output signals in response to the said changes which signals are a function of the said changes, coherent light beam generating means for generating a coherent input beam, input beam stabilization means positioned to receive the said input beam and to direct the said beam to a selected fixed location in the said eye, said input beam stabilization means including beam directing means and servo means connected to receive the said signals generated by said eyetracker means and move said beam directing means as a function of said changes in position of the said eye, thereby constantly directing the said beam to the said selected fixed locatin in the said eye regardless of eye movements.