Abstract: A method of tracking an affected area and a surgical equipment, which is capable of tracing positions of the affected area and the surgical equipment more precisely through a stereo scope by using images of the affected area and the surgical equipment traced in macro scale after tracing the affected area and the surgical equipment in macro scale.

Abstract: A stereo microscope capable of not only adjusting the three dimensional effect of stereoscopic image but also focusing exactly even when the three dimensional effect of stereoscopic image is adjusted, is provided. A spacing distance of a pair of zoom unit can be adjusted so that a user can adjust three dimensional effect of image seen through an ocular lens according to personal tendency to improve convenience. Additionally, an object with a depth such as a hole can be exactly observed without interference of a boundary. Further, even though the three dimensional effect of an image is adjusted by adjusting the spacing distance of the pair of zoom units, the to focus of optical system can be exactly adjusted.

Abstract: A three dimensional shape measurement apparatus includes an illumination section and a grating transfer unit. The illumination section includes a light source unit generating a light and a grating unit changing the light generated by the light source unit into a grating pattern light having a grating pattern. The illumination section illuminates the grating pattern light onto a measurement target in a predetermined direction. The grating transfer unit transfers the grating unit in a predetermined inclination direction with respect to an extension direction of the grating pattern and an arrangement direction of the grating pattern. Thus, manufacturing cost may be reduced, and the three dimensional shape measurement apparatus may be easily managed.

Abstract: An inspection apparatus includes a work stage part, an optical module, and an optical module moving part. The work stage part receives a board. The work stage part includes work stages disposed in parallel. The optical module includes a projecting part disposed over the board, an image capturing part disposed at a side portion of the projecting part to receive the grating pattern light and capture a reflection image, and an optical path changing part changing a path of the grating pattern light and guiding the grating pattern light to the image capturing part so that the grating pattern light is downwardly incident into the image capturing part. The optical module moving part is disposed over and coupled to the optical module to move the optical module. Thus, time may be reduced and a space may be secured, required for inspecting a board.

Abstract: A wavelength-changeable laser apparatus including a laser light source, a collimating lens, a diffraction grating, and a mirror is shown. The laser light source provides a laser light. The collimating lens collects the laser light provided from the laser light source and providing a light that is substantially parallel. The diffraction grating diffracts the light provided from the collimating lens. The mirror reflects the light provided from the diffraction grating back to the diffraction grating, a rotation axis rotatable within a predetermined range of a tuning angle being set therein so that a wavelength of the laser light is changed in a mode hopping form, the minor rotating based on the rotation axis serving as a pivot point. Therefore, a wavelength change speed may be increased and a stability of wavelength change may be improved.

Abstract: An apparatus for inspecting a board is shown. The board inspection apparatus includes at least one illuminating module, an imaging lens, a first beam splitter, a first camera, and a second camera. The illuminating module provides light to an inspection board and the imaging lens transmits a light reflected from the inspection board. The first beam splitter transmits a portion of the light transmitted from the imaging lens and reflects the rest of the transmitted light. The first camera image-captures by receiving the light that transmits the first beam, and the second camera image-captures by receiving the light reflected from the first beam splitter. Therefore, by using one imaging lens to inspect the inspection board, the decrease in accuracy caused by the different optical axis or magnification may be prevented.

Abstract: An inspection apparatus includes a work stage part, an optical module, and an optical module moving part. The work stage part receives a board. The work stage part includes work stages disposed in parallel. The optical module includes a projecting part disposed over the board, an image capturing part disposed at a side portion of the projecting part to receive the grating pattern light and capture a reflection image, and an optical path changing part changing a path of the grating pattern light and guiding the grating pattern light to the image capturing part so that the grating pattern light is downwardly incident into the image capturing part. The optical module moving part is disposed over and coupled to the optical module to move the optical module. Thus, time may be reduced and a space may be secured, required for inspecting a board.

Abstract: A three dimensional shape measurement apparatus includes an illumination section and a grating transfer unit. The illumination section includes a light source unit generating a light and a grating unit changing the light generated by the light source unit into a grating pattern light having a grating pattern. The illumination section illuminates the grating pattern light onto a measurement target in a predetermined direction. The grating transfer unit transfers the grating unit in a predetermined inclination direction with respect to an extension direction of the grating pattern and an arrangement direction of the grating pattern. Thus, manufacturing cost may be reduced, and the three dimensional shape measurement apparatus may be easily managed.

Abstract: Provided is a bracket for an illumination device in an optical engine. The bracket, which includes a body to be fixed to a light tunnel, and fixing pieces, connected to but spaced apart from the body, to be fixed to a barrel, comprises: arm parts which independently protrude from both side ends of the body, each arm part being bent to form a step and to be connected to either side of the fixing piece. In the bracket according to the present invention, since the arm parts have the resilience, the light tunnel is easily controlled by the resilience of the arm parts in addition to the elasticity of springs, and the reliability of the product is improved by reducing a failure ratio of the product.