A user-wearable fluorescence based visualization system comprising a multi-light lamp assembly that provides for the selected output of light using multiple light emitting sources, wherein the outputted light may be tailored to generate response wavelength by the interaction of the emitted light and a tissue illuminated by the emitted light, through the process of fluorescence, and a viewing system that allows a practitioner view the fluorescent light generated by the tissue, and distinguish between healthy and diseased tissues.

An ion beam cutting calibration system includes a sample cutting table, a coarse calibration device, a microscopic observation device, and a flip table. The flip table includes a flip plate, which is configured to drive the sample cutting table to swing in a vertical plane. The swing axis of the flip plate is collinear with the side edge of the top surface of the ion beam shielding plate close to the sample. Through the coordinated operation of the flip table, the microscopic observation device, the sample cutting table, and the coarse calibration device, the ion beam cutting calibration system avoids the problem that when the position relationship between the sample and the shielding plate is observed from multiple angles during calibration loading, the sample and the shielding plate are likely to be moved out of the field of vision of the microscope and out of focus.

Energy systems are configured to direct energy according to a four-dimensional (4D) plenoptic function. In general, the energy systems include a plurality of energy devices, an energy relay system having one or more relay elements arranged to form a singular seamless energy surface, and an energy waveguide system such that energy can be relayed along energy propagation paths through the energy waveguide system to the singular seamless energy surface or from the singular seamless energy surface through the energy relay system to the plurality of energy devices.

This application concerns a loupe-based wearable device that is enhanced by a mounted visualization aid on the housing body of at least one of the loupe eyepieces, the aid providing a dual light source, a beam splitter, and a camera directed in the same optical path as a user's eyesight such that both visible light and fluorescent dye exciting light can be directed at a site of operation to enhance real time visualization of tissue resection.

A lighting device comprising a plurality of lighting modules arranged concentrically about an optical axis is disclosed wherein the plurality of lighting modules emit light in at least one of a plurality of wavelength ranges (UV, visible (e.g., blue, green, yellow, orange, red, white, etc.), IR) and are arranged at a non-parallel angle to an optical axis of the lighting device, wherein the emitted light is directed towards a lens system that focuses the light onto a viewing point. A second lighting device is disclosed, wherein the lighting device comprises a plurality of lighting modules arranged concentrically about an inner circumference of the lighting device, wherein the plurality of lighting modules emit light in at least one of a plurality of wavelength ranges (UV, visible (e.g., blue, green, yellow, orange, red, white, etc.), IR) onto a lighting director device that redirects the emitted light toward a lens system that focuses the light onto a viewing point.

A display system is configured to direct a plurality of parallactically-disparate intra-pupil images into a viewer's eye. The parallactically-disparate intra-pupil images provide different parallax views of a virtual object, and impinge on the pupil from different angles. In the aggregate, the wavefronts of light forming the images approximate a continuous divergent wavefront and provide selectable accommodation cues for the user, depending on the amount of parallax disparity between the intra-pupil images. The amount of parallax disparity may be selected using an array of shutters that selectively regulate the entry of image light into an eye. Each opened shutter in the array provides a different intra-pupil image, and the locations of the open shutters provide the desired amount of parallax disparity between the images. In some other embodiments, the images may be formed by an emissive micro-display. Each pixel formed by the micro-display may be formed by one of a group of light emitters, which are at different locations such that the emitted light takes different paths to the eye, the different paths providing different amounts of parallax disparity.

The purpose is to provide a higher-quality three-dimensional image with a downsized optical system that does not need interpupillary adjustment. An ocular optical system according to the present disclosure includes, on an optical path viewed from an observer side, at least: a first polarization member; a mirror; a second polarization member; and an image display device in this order. A polarized state in the first polarization member and a polarized state in the second polarization member are orthogonal to each other.

An optical lens assembly includes, in order from a visual side to an image source side: a first lens with positive refractive power; an optical element including, in order from the visual side to the image source side, an absorptive polarizer, a reflective polarizer and a first phase retarder; a second lens with positive refractive power; a partial-reflective-partial-transmissive element; a second phase retarder; and an image source plane. The optical lens assembly has a total of two lenses with refractive power. A focal length of the optical lens assembly is f, a maximum image-source height of the optical lens assembly is IMH, a focal length of the first lens is f1, a focal length of the second lens is f2, and following conditions are satisfied: 0.40<IMH/f<1.26 and 0.21<f2/f1<2.35. A head-mounted electronic device includes the optical lens assembly.

An optical eyepiece system capable of superimposing optical paths and a head-mounted display device. The optical eyepiece system comprises an image surface (103), an auxiliary optical path (T), a spectroscope (101), and a main optical path (A) which are sequentially connected; an optical axis of the image surface (103) coincides; an optical axis of the main optical path (A) is mutually perpendicular to the optical axis of the auxiliary optical path (T); and the optical axis of the main optical path (A) is reflected by the spectroscope (101) and is superimposed with the auxiliary optical path (T) transmitted by the spectroscope (101). An image displayed on the micro image display (102) and a physical object image captured by an object shape observation and photographing apparatus are displayed in a superimposing mode, and characteristics of being clearer in imaging, small in distortion, and high in imaging quality are achieved.

An optical eyepiece system capable of superimposing optical paths and a head-mounted display device. The optical eyepiece system comprises an image surface (103), an auxiliary optical path (T), a spectroscope (101), and a main optical path (A) which are sequentially connected; an optical axis of the image surface (103) coincides; an optical axis of the main optical path (A) is mutually perpendicular to the optical axis of the auxiliary optical path (T); and the optical axis of the main optical path (A) is reflected by the spectroscope (101) and is superimposed with the auxiliary optical path (T) transmitted by the spectroscope (101). An image displayed on the micro image display (102) and a physical object image captured by an object shape observation and photographing apparatus are displayed in a superimposing mode, and characteristics of being clearer in imaging, small in distortion, and high in imaging quality are achieved.