Illumination system and method for ophthalmic surgical microscopes
The disclosure provides an ophthalmic surgical microscope including an optical axis. The ophthalmic surgical microscope also includes at least one light source configured to provide illumination having a wavelength range between 575 nm and 625 nm. The ophthalmic surgical microscope further includes a control device for directing the illumination at an acute angle relative to the optical axis of the microscope.
1 . An ophthalmic surgical microscope comprising:
an optical axis;
at least one light source configured to provide illumination having a wavelength range between 590 nm and 610 nm; and
a control device for directing the illumination at an acute angle relative to the optical axis the acute angle including between 14 and 18 degrees for the left eye and between −14 and −18 degrees for the right eye;
wherein the ophthalmic surgical microscope provides an F-number equal to 15.
2 . An eye image displaying system comprising:
an ophthalmic surgical microscope including:
an optical axis;
at least one light source configured to provide illumination having a wavelength range between 590 nm and 610 nm; and
a control device for directing the illumination at an acute angle relative to the optical axis, the acute angle including between 14 and 18 degrees for the left eye and between −14 and −18 degrees for the right eye; and
a detector communicatively coupled to the ophthalmic surgical microscope, the detector configured to:
collect the illumination reflected from the right eye or the left eye; and
provide an analog image based on the illumination reflected from the right eye or the left eye;
wherein the ophthalmic surgical microscope provides an F-number equal to 15.