A method for flexible inspection of a sample includes forming an input beam using a beam source, blocking a portion of the input beam using an input mask, and forming a shaped beam from a portion of the input beam. The shaped beam is received at a first portion of an objective lens and focused onto a sample. A reflected beam is collected at a second portion of the objective lens. Scattered light is collected at the first and second portions of the objective lens and at a third portion of the objective lens. The scattered light is received at a dark-field detector module and a portion of the scattered light is directed to a dark-field detector. The dark-field detector module includes an output mask having one or more output apertures that allow at least part of the scattered light that passes through the third portion of the object lens to pass as the portion of the scattered light that is directed to the dark-field detector.

A method for flexible inspection of a sample includes forming an input beam using a beam source, blocking a portion of the input beam using an input mask, and forming a shaped beam from a portion of the input beam. The shaped beam is received at a first portion of an objective lens and focused onto a sample. A reflected beam is collected at a second portion of the objective lens. Scattered light is collected at the first and second portions of the objective lens and at a third portion of the objective lens. The scattered light is received at a dark-field detector module and a portion of the scattered light is directed to a dark-field detector. The dark-field detector module includes an output mask having one or more output apertures that allow at least part of the scattered light that passes through the third portion of the object lens to pass as the portion of the scattered light that is directed to the dark-field detector.

The present disclosure generally pertains to endoscopes configured to utilize a single optical channel for both image extraction and illumination. In certain embodiments, the disclosure contemplates an endoscope configured with a source of illumination outside of the visible spectrum, such as ultraviolet (UV) light, with the endoscope configured to down-convert such illumination into visible light at the distal end of the endoscope. This configuration not only avoids or reduces image flooding caused by the unwanted reflections on optical surfaces within the endoscope relays and objective, but also doubles the effective area of the lenses, thereby allowing higher quality imaging.

The present disclosure generally pertains to endoscopes configured to utilize a single optical channel for both image extraction and illumination. In certain embodiments, the disclosure contemplates an endoscope configured with a source of illumination outside of the visible spectrum, such as ultraviolet (UV) light, with the endoscope configured to down-convert such illumination into visible light at the distal end of the endoscope. This configuration not only avoids or reduces image flooding caused by the unwanted reflections on optical surfaces within the endoscope relays and objective, but also doubles the effective area of the lenses, thereby allowing higher quality imaging.

A binocular with an integrated rangefinder consisting of two tubes with observation channels, the optical systems of which include a Schmidt-Pechan prism reversion system with at least half-pentagonal prism and a Schmidt roof prism is provided. The laser transmitter of the transmitted infrared beam path is arranged in the first tube in parallel with the first observation channel towards the observed object and, furthermore, the display with an illuminated reticle and light beam is accommodated in the first tube, which, after passing through the integration display prism and the second separation layer on the reflective wall of the half-pentagonal prism and through the reversion system, is integrated into the first observation channel of the first tube.

A binocular with an integrated rangefinder consisting of two tubes with observation channels, the optical systems of which include a Schmidt-Pechan prism reversion system with at least half-pentagonal prism and a Schmidt roof prism is provided. The laser transmitter of the transmitted infrared beam path is arranged in the first tube in parallel with the first observation channel towards the observed object and, furthermore, the display with an illuminated reticle and light beam is accommodated in the first tube, which, after passing through the integration display prism and the second separation layer on the reflective wall of the half-pentagonal prism and through the reversion system, is integrated into the first observation channel of the first tube.

An endoscope includes a four color separation prism having a first color separation prism, a second color separation prism, a third color separation prism, and a fourth color separation prism which respectively separate light incident from an affected area into a blue, red and green color components, and an IR component, first, second, third and fourth color image sensors, and a signal output. The first color separation prism, the second color separation prism, the third color separation prism, and the fourth color separation prism are sequentially disposed from an object side when receiving the light incident from the affected area. The first color image sensor is disposed opposite to the second color image sensor and the third color image sensor across an incident ray which is incident vertically to an object side incident surface of the first color separation prism.

An endoscope includes a four color separation prism having a first color separation prism, a second color separation prism, a third color separation prism, and a fourth color separation prism which respectively separate light incident from an affected area into a blue, red and green color components, and an IR component, first, second, third and fourth color image sensors, and a signal output. The first color separation prism, the second color separation prism, the third color separation prism, and the fourth color separation prism are sequentially disposed from an object side when receiving the light incident from the affected area. The first color image sensor is disposed opposite to the second color image sensor and the third color image sensor across an incident ray which is incident vertically to an object side incident surface of the first color separation prism.

Disclosed is an optical assembly including: an upper case which is provided with a first optical path for passing light from a first light source, and a second optical path, which communicates with a side of the first optical path and which introduces the light from a second light source into the first optical path; a lower case coupled with the upper case; and a beam splitter which is disposed in the first optical path, and which maintains a traveling direction with respect to the light from the first light source and changes a direction of the light from the second light source so that the light from the second light source can travel in the same direction as the light from the first light source.

Disclosed is an optical assembly including: an upper case which is provided with a first optical path for passing light from a first light source, and a second optical path, which communicates with a side of the first optical path and which introduces the light from a second light source into the first optical path; a lower case coupled with the upper case; and a beam splitter which is disposed in the first optical path, and which maintains a traveling direction with respect to the light from the first light source and changes a direction of the light from the second light source so that the light from the second light source can travel in the same direction as the light from the first light source.