Optical systems and apparatuses configured for enabling substantially simultaneous observation of a plurality of points in an array from a common reference point. Without the optical systems and apparatuses disclosed herein, less than all of the plurality of points can be observed substantially simultaneously from the common reference point.

An optical attachment for surgical loupe glasses is disclosed. The optical attachment for surgical loupe glasses includes a visor sized to cover at least a portion of a first carrier lens of the surgical loupe glasses. The optical attachment also includes at least one loupe orienting feature defined by the visor.

An observation optical system of a real-image type includes, in order from the object side, an objective system, a reverse-erecting system that erects an inverted image formed by the objective system, and an eyepiece system that allows a pupil to observe an erect image formed by the reverse-erecting system. The objective system includes, in order from the object side, a first lens having a negative power and a second lens having a positive power. The eyepiece system includes, in the order from the object side, a third lens having a positive power, a fourth lens having a negative power, a fifth lens having a positive power, and a sixth lens having a positive power.

The disclosure demonstrates a multipurpose illuminator used in medical examinations. The multipurpose illuminator described herein employs a housing incorporating two magnification viewing lenses each having different powered magnification that allows medical practitioners to view patient tissue and structures using two different magnifications. A battery power source is also contained in the housing to provide power to an illumination source. The illumination source may include an array of LEDs to provide light for viewing the patient tissue and matter. The illumination source and the lenses may be cross polarized relative to each other to provide enhanced viewing of the patient tissues and structures. A switch is provided to initiate the LED illumination source or to provide modes of operation that provide certain of the LEDs being illuminated.

A magnification device including a housing having a distal open end and a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal open end, and one or more eye lenses adjacent the proximal open end, the optical system produced a desired level of magnification; and a filtering system having first filter selectively filtering a first group of wavelengths and a second filter selective filtering a second group of wavelengths. The first and second filters having an optical density selected based on a magnification level of the optical system. A vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is also disclosed, wherein the magnification devices include filters that have optical densities based on a magnification level.

A method is provided for adjusting a loupe including an eyepiece and a tube framework having a first optical system adjacent to an object and a second optical system adjacent to the eyepiece. At least two zoom lenses in the first optical system shift along an optical axis between a first and a second position to change magnification. The method includes shifting at least one lens in the first optical system such that a distance at which the object is focused when the zoom lenses are shifted to the first position is substantially equal to a distance at which the object is focused when the zoom lenses are shifted to the second position; and then shifting at least one lens in the second optical system along the optical axis such that the object is focused when the zoom lenses are shifted to the first position or the second position.

The disclosure demonstrates a multipurpose illuminator used in medical examinations. The multipurpose illuminator device herein employs a housing incorporating two magnification viewing lenses each having different powered magnification that allows medical practitioners to view patient tissue and structures using two different magnifications. A battery power source is also contained in the housing to provide power to an illumination source. The illumination source may include an array of LEDs to provide light for viewing the patient tissue and matter. The illumination source and the lenses may be cross polarized relative to each other to provide enhanced viewing of the patient tissues and structures. A switch is provided to initiate the LED illumination source or to provide modes of operation that provide certain of the LEDs being illuminated.

A surgical microscope employs a pentaprism beam splitter as a branching unit to branch each beam passed through variable power optical systems into a first beam and a second beam, the first beam being horizontally reflected for an eyepiece unit, the second beam being vertically transmitted for an imaging device. The pentaprism alone is capable of simultaneously conducting reflection to provide an erect image and transmission to provide a photographing image, thereby reducing the number of optical parts in a microscope body of the surgical microscope.

The present invention relates to a portable device for magnifying an electronic image, the device includes: a body having a body frame, a camera module, a display module, an image processing module, and a guide pin; and a holder having a base plate, supporting ends respectively provided at opposite ends of an upper surface of the base plate to define a receiving space for receiving the body in an upper center of the base plate, and a guide groove provided on each inner surface of the supporting ends such that the guide pin is inserted into the guide groove, the holder rotating the body within a preset angle range while holding the body so as to obtain a focal length of the camera module and a viewing angle of the display module.

A field-of-view transformation structure of a head-mounted magnifying-glass comprises: a wearing-piece, a supporting-assembly, a first pivoting-portion, a magnifying-glass main-body, a first prism main-body, and a second prism main-body; wherein the supporting-assembly is set with the wearing-piece, the first pivoting-portion is defined on the supporting-assembly, the magnifying-glass main-body and the first pivoting-portion are pivotally set mutually, a first facing-eye-surface is defined on the first prism main-body corresponding to the magnifying-glass main-body, and a second facing-eye-surface is defined on a offset position of the magnifying-glass main-body; thus, the user can wear the wearing-piece, when wanting using the first prism main-body to watch, the magnifying-glass main-body can be flipped upwards; or, the user can directly view the second facing-eye-surface to simultaneously watch other parts of the patient when watching the magnifying-glass main-body. Besides the magnified field-of-view is bigger than the conventional technology, it also has the advantage of wide-angle field-of-view.