A dermatoscope device is provided. The dermatoscope device includes an optical tube structure including an optical unit, which is provided to allow an observer to enlarge and inspect an observation target, and a light emitting unit which irradiates light to the observation target to be enlarged and inspected through the optical unit, a control module to control a form of irradiating the light through the optical unit, and a housing having the optical tube structure and the control module embedded therein.

A deep-viewing coaxial illuminator accessory that may be easily reversibly attached to commercial high-brightness, focusable-beam flashlights to provide shadow-free viewing of subject matter up to 20 ft or more away is disclosed. A miniature companion telescopic magnifier for optional use with the coaxial illuminator that provides erect-image magnified viewing and may be easily reversibly attached to the illuminator is described.

In assembling a binocular loupe device, a loupe of the binocular loupe device is attached to an appropriate position at a correct angle according to a pupil position of a user in a near vision state. A rectangular, transparent measurement assisting plate fixed to a frame before attachment of a loupe is worn by a user, and the face of the user in a near vision state is photographed by a camera from a work object point P to obtain a first image. The first image is subjected to arithmetic processing by a computer to measure, on the first image, coordinate positions of respective four vertexes of the measurement assisting plate and coordinate positions of respective left and right pupils of the user in the near vision state, and determines the loupe attachment position and/or loupe attachment angle on a plane of the plate member from the measured coordinate positions.

A lighting assembly including a plurality of lighting sources or modules arranged concentrically about an inner circumference of the lighting device, wherein the plurality of lighting sources or 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, the lens system focusing the light onto a viewing point. Further disclosed is a passthrough within the lighting director device that allows light positioned on a base of the lighting device to pass through the lighting director.

Watchmaker's portable lubrication tool including at least one lubricant reservoir, with a plurality of chambers, each only accessible to a user in a first open position of the tool, each reservoir being closable by a sealed lid which, in a second closed position, is kept sealingly pressed on the reservoir, and the tool includes a structure which carries such a lid associated with such a reservoir, and which is a component of a multi-function pocket knife of the Swiss army knife type, with a frame on which pivots a plurality of blades, the tool comprises at least one elastic return arranged to exert, in the second closed position, a force on at least one lid to press it sealingly on an associated reservoir.

An ocular optical system includes a first lens element, a second lens element and a third lens element from an eye-side to a display-side in order along an optical axis. The first lens element, the second lens element and the third lens element each include an eye-side surface and a display-side surface. The eye-side surface of the first lens element has a concave portion in a vicinity of the optical axis. The display-side surface of the third lens element has a concave portion in a vicinity of a periphery of the third lens element. The ocular optical system satisfies 1TTL/ER10, wherein TTL is a distance from the eye-side surface of the first lens element to the display screen along the optical axis, and ER is a distance from a pupil of the observer to the eye-side surface of the first lens element along the optical axis.

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 user-wearable examination/visualization/collection system with light enhancement comprising a carrier suitable for the retention of a lighting assembly and a viewing and collection system is presented wherein images or video of objects may be collected under natural (e.g., white) light and/or non-visible light (e.g., IR, UV) conditions, processed and presented to a user on a local display. Further disclosed are lighting assemblies that provide for the light necessary to collect images different lighting conditions and optical filtering that allows for a limitation of the light viewable and collected.

A short-range optical amplification module, spectacles, a helmet and a VR system. The amplification module includes a reflective polarizing plate, a first phase delay plate, a second lens and a second phase delay plate, and a first lens. In the second lens, the optical surface adjacent to the second phase delay plate is a transflective optical surface. The first focal length f2 of the second lens meets the condition: 1Ff22F, wherein F is the system focal length of the optical amplification module. By performing parameter refining on the first focal length f2 that influences the optical amplification effect, the module can keep a small overall thickness while obtaining a large optical amplification effect, and the VR device can realize a good field angle, a large oculomotor range and a high-quality imaging effect.

A deep-viewing coaxial illuminator accessory that may be easily reversibly attached to commercial high-brightness, focusable-beam flashlights to provide shadow-free viewing of subject matter up to 20 ft or more away is disclosed.

A miniature companion telescopic magnifier for optional use with the coaxial illuminator that provides erect-image magnified viewing and may be easily reversibly attached to the illuminator is described.