An eyepiece structure for a surgical microscope includes an inner barrel, an intermediate barrel, and outer barrels. When the outer barrels are rotated, a protrusion of the inner barrel is guided along a spiral groove of the outer barrel and is moved back and forth along an optical axis. The protrusion is guided through a straight hole of the intermediate barrel that is not rotatable, and therefore, the inner barrel moves along the optical axis without rotating around the optical axis. An astigmatic lens is added to the inner barrel that is nonrotatable, to enable a surgeon suffering from astigmatism to conduct a surgical operation without glasses.

A magnifying device for a mobile device is a case, for inserting a cellular phone into, that has a see-through front cover with a magnifying screen for enlarging the print on the screen of the cellular phone. A pocket on the back cover holds a thin magnifier for using to enlarge the minute print often used in cellular phone menus.

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.

A wearable optical system allows a user to watch a large screen, such as a smartphone screen, in a wide field of view (FOV) with both eyes, the field superimposed on the real world. The screen displays two separate zones to be the data source for each eye. The system includes two projection optical subassemblies based on a pupil forming eye piece. The interpupilarity distance (IPD) is adjusted by rotating each optical subassembly about a pivot, which is perpendicular to its specific display zone.

An optical system includes, from an image side to an object side, a first lens having a positive refractive power, a second lens having a positive refractive power, and a third lens having a negative refractive power. The first lens, the second lens, and the third lens form an optical path with the object side facing a screen and the image side adapted to provide an image from the screen to a user. In one aspect, the optical system is adapted to correct at least one of a group of aberrations including astigmatism and field curvature; or, lateral color.

An embedded reflective eyepiece includes an optical lens, a beam splitter and reflective coating at a convex surface of the optical lens and a circular polarizing reflector surface having a concave surface of the optical lens. A method for forming a magnified image includes emitting circularly polarized light from a display source, at least partially refracting the circularly polarized light across a convex surface of a beam splitter reflective coating across a lens, at least partially reflecting refracted circularly polarized light internally off a concave circularly polarized reflector surface of the lens, and at least partially reflecting a reflected circularly polarized light internally off of the beam splitter reflective coating at the convex surface.

The invention relates to a telescope optics for a telescopic observational instrument having an objective lens, having a prism erecting system and having an eyepiece lens, wherein an image of an object generated by the objective lens is located between the prism erecting system and the eyepiece lens, and wherein the objective lens, in an order starting from the object side, comprises a first lens group G1 with a positive refractive power, a second lens group G2 with a negative refractive power and a third lens group G3, and wherein the second lens group G2 is adjustable in parallel to an optical axis for focusing, and wherein at least one lens with a negative refractive power of the third lens group G3 is adjustable perpendicularly to the optical axis for changing the position of the image, and wherein the third lens group G3 has a negative refractive power.

A microscope apparatus includes a sample carrying module, a light source module and a lens module. The sample carrying module includes an adhesive element and a body having a light-transmission region and a sample viewing surface. The adhesive element is detachably adhered to the body, and at least partially covers the light-transmission region, such that the adhesive element is disposed adjacent to the sample viewing surface. The light source module is detachably disposed at a side of the body, and includes a base and a light source. The base has an aperture, and the sample carrying module is detachably disposed at a side of the aperture. The light source is disposed in the base. The lens module includes at least one lens, which is detachably disposed at one side of the sample carrying module and substantially focuses at the sample viewing surface, and corresponds to the light source module.

A portable microscope apparatus operated with an image capture device includes a sample carrying module, a lens module, a first polarizer and a second polarizer. The sample carrying module includes a transparent carrier and a sample adhesive element including a substrate and a glue layer. The substrate has a concave portion and an extending portion. The concave portion is adjacently connected to the extending portion to form a first surface. The glue layer is at least partially disposed on the first surface and in an integrated form with the substrate. The lens module is detachably connected to the image capture device, and disposed between the sample carrying module and the image capture device. The first polarizer is disposed on an optical path on one side of the sample carrying module. The second polarizer is disposed on the optical path on the other side of the sample carrying module.

A reflecting microscope module cooperating with an image capturing module includes a housing, a lens and a sample adhesive substance. The housing has a sample inspecting surface located on one side of the housing opposite to the image capturing module. The lens is disposed in the housing and the sample adhesive substance is detachably disposed on a bottom of the housing. The sample adhesive substance adjacently connected to the sample inspecting surface includes a substrate and a glue layer. The glue layer is integrally combined with the substrate to form one piece. A reflecting microscope device is also disclosed.