Abstract: A patterned light irradiation apparatus is enclosed. The patterned light irradiation apparatus comprises a light source, a pattern grating, an aperture, wherein the pattern grating includes a striped shape in a form including repetition of a transmission part and a shielding part, and the aperture includes an opening having a sinusoidal wave-shaped cross section. When the patterned light irradiation apparatus irradiates patterned light to a subject, the patterned irradiation apparatus performs defocusing and thus can irradiate patterned light having an ideal sinusoidal form to the subject. Therefore, a three-dimensional image of high quality can be acquired.

Abstract: An optical tracking system and a method using the same capable of detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated is disclosed. The optical tracking system and a method using the same according to an embodiment of the present invention has an effect of expanding an available area by detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated, as well as, a system downsizing is also achieved by significantly reducing size of the marker unit compared with conventional system.

Abstract: A technical concept of the present invention provides: a curved pattern marker capable of improving the precision of position detection and reducing size; and an optical tracking device including the marker. The marker comprises: a first lens unit, which has at least one lens having an incident surface, emits incident light within a target range, and is formed such that a light parallel to an optical axis among the incident light is vertically incident on the incident surface; a pattern unit having a curved pattern formed therein; and a second lens unit arranged between the first lens unit and the pattern unit, and adjusting the light emitted from the first lens unit such that the light is focused on the curved pattern.

Abstract: A patterned light irradiation apparatus is enclosed. The patterned light irradiation apparatus comprises a light source, a pattern grating, an aperture, wherein the pattern grating includes a striped shape in a form including repetition of a transmission part and a shielding part, and the aperture includes an opening having a sinusoidal wave-shaped cross section. When the patterned light irradiation apparatus irradiates patterned light to a subject, the patterned irradiation apparatus performs defocusing and thus can irradiate patterned light having an ideal sinusoidal form to the subject. Therefore, a three-dimensional image of high quality can be acquired.

Abstract: An optical tracking system and a method using the same capable of detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated is disclosed. The optical tracking system and a method using the same according to an embodiment of the present invention has an effect of expanding an available area by detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated, as well as, a system downsizing is also achieved by significantly reducing size of the marker unit compared with conventional system.

Abstract: An optical tracking system and a method using the same capable of detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated is disclosed. The optical tracking system and a method using the same according to an embodiment of the present invention has an effect of expanding an available area by detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated, as well as, a system downsizing is also achieved by significantly reducing size of the marker unit compared with conventional system.

Abstract: A technical concept of the present invention provides: a curved pattern marker capable of improving the precision of position detection and reducing size; and an optical tracking device including the marker. The marker comprises: a first lens unit, which has at least one lens having an incident surface, emits incident light within a target range, and is formed such that a light parallel to an optical axis among the incident light is vertically incident on the incident surface; a pattern unit having a curved pattern formed therein; and a second lens unit arranged between the first lens unit and the pattern unit, and adjusting the light emitted from the first lens unit such that the light is focused on the curved pattern.

Abstract: The present disclosure relates to a three-dimensional shape measurement apparatus for obtaining height information of a measurement target object using a prism. The three-dimensional shape measurement apparatus includes an illumination unit irradiating light on the measurement target object, a prism unit receiving reflective light reflected from the measurement target object and directing the reflective light to an image formation lens, an imaging unit receiving the reflective light from the prism unit and capturing an image of the reflective light, and a height measurement unit measuring a height of the measurement target object based on the image captured by the imaging unit.

Abstract: The present disclosure provides a marker with a pattern formed thereon, which includes an optical system. At least a part of the pattern that uniquely appears depending on a direction in which the pattern is viewed from an outside of the marker through the optical system, is visually identified from the outside of the marker. The pattern includes a plurality of rows of binary-coded sequences. The binary-coded sequence of each of the plurality of rows includes aperiodic sequences that are repeatedly arranged. The aperiodic sequences included in the binary-coded sequence of one row of the plurality of rows are different from the aperiodic sequences included in the binary-coded sequence of another row of the plurality of rows, and each of the aperiodic sequences includes a plurality of sub-sequences that are arranged in a predetermined order.

Abstract: The present disclosure provides a marker with a pattern formed thereon, which includes an optical system. At least a part of the pattern that uniquely appears depending on a direction in which the pattern is viewed from an outside of the marker through the optical system, is visually identified from the outside of the marker. The pattern includes a plurality of rows of binary-coded sequences. The binary-coded sequence of each of the plurality of rows includes aperiodic sequences that are repeatedly arranged. The aperiodic sequences included in the binary-coded sequence of one row of the plurality of rows are different from the aperiodic sequences included in the binary-coded sequence of another row of the plurality of rows, and each of the aperiodic sequences includes a plurality of sub-sequences that are arranged in a predetermined order.

Abstract: The present disclosure relates to a three-dimensional shape measurement apparatus for obtaining height information of a measurement target object using a prism. The three-dimensional shape measurement apparatus includes an illumination unit irradiating light on the measurement target object, a prism unit receiving reflective light reflected from the measurement target object and directing the reflective light to an image formation lens, an imaging unit receiving the reflective light from the prism unit and capturing an image of the reflective light, and a height measurement unit measuring a height of the measurement target object based on the image captured by the imaging unit.

Abstract: A tracking system and method using the same is disclosed which is capable of minimizing a restriction of surgical space by achieving a lightweight of the system as well as a reduction of a manufacturing cost through calculating a three-dimensional coordinates of each of makers using one image forming unit. In the tracking system and method using the same, lights emitted from the markers are transferred to one image forming unit through two optical paths, an image sensor of the image forming unit forms two images (direct image and reflection image) of the two optical paths of the markers, and therefore, the system and method using the same has an effect of reducing a manufacturing cost of the tracking system with small and lightweight, and relatively low restriction of surgical space comparing with conventional tracking system since it is possible to calculate a spatial position and direction of the markers attached on a target by using one image forming unit.

Abstract: An optical tracking system and a method using the same capable of detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated is disclosed. The optical tracking system and a method using the same according to an embodiment of the present invention has an effect of expanding an available area by detecting an exact spatial position and a direction of a target regardless of the distance from the target to be calculated, as well as, a system downsizing is also achieved by significantly reducing size of the marker unit compared with conventional system.

Abstract: A tracking system and method using the same is disclosed which is capable of minimizing a restriction of surgical space by achieving a lightweight of the system as well as a reduction of a manufacturing cost through calculating a 3-dimensional coordinates for each maker using one image forming unit. In the tracking system and method using the same, lights emitted from each marker are passed through a lens array unit which includes at least a pair of lens, images of the markers corresponding to the number of the lenses of lens array units are formed on an image forming for each marker, and therefore, it is possible to calculate a spatial position and a direction of the markers attached on the target by using only one image forming unit through a trigonometry.

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 focus of optical system can be exactly adjusted.

Abstract: A tracking system and method using the same is disclosed which is capable of minimizing a restriction of surgical space by achieving a lightweight of the system as well as a reduction of a manufacturing cost through calculating a 3-dimensional coordinates of each of makers using single image forming unit. In the tracking system and method using the same has an effect of reducing a manufacturing cost of the tracking system with small and lightweight, and relatively low restriction of surgical space comparing with conventional tracking system by calculating a spatial position and a direction of the markers attached on a target by using one image forming unit through a trigonometry since a pair of maker images are formed on an image forming unit for each marker by a pair of light sources positioned different to each other.

Abstract: A tracking system and method using the same is disclosed which is capable of minimizing a restriction of surgical space by achieving a lightweight of the system as well as a reduction of a manufacturing cost through calculating a three-dimensional coordinates of each of makers using one image forming unit. In the tracking system and method using the same, lights emitted from the markers are transferred to one image forming unit through two optical paths, an image sensor of the image forming unit forms two images (direct image and reflection image) of the two optical paths of the markers, and therefore, the system and method using the same has an effect of reducing a manufacturing cost of the tracking system with small and lightweight, and relatively low restriction of surgical space comparing with conventional tracking system since it is possible to calculate a spatial position and direction of the markers attached on a target by using one image forming unit.

Abstract: The present invention relates to a stereo microscope system, at least one optical axis system and a camera is used, and a first image through the first beam path and a second image through the second beam path have identical coordinates in which the first and second images are obtained from the camera, therefore, it is not required to revise an image during image registration, and as well as, to match mechanical compensation of coordinates of cameras, since the first image and second image have identical coordinates. According to the present invention, it is possible to provide a stereoscopic image with minimized loss of stereo effect and as well as, it is possible to observe a stereoscopic image more comfortable since an eye fatigue is minimized.

Abstract: A stereo microscope system capable of display virtual reality through a plurality of sub display parts, which is the same as that embodied through a microscope, and capable of embodying virtual reality with same quality image throughout the plurality of display parts, is provided. According to the stereo microscope, the image capturing part captures the beam passing through the beam splitter part of the prism to capture an image and delivers the image to the processor, and the processor digital processes the image captured by the pair of image capturing part and delivers the image to the first and second display parts and to display the image. Therefore, the image captured by the image capturing part is digital processed by the processor, and the image that is digital processed by the processor is delivered to each of the display part to display so that regular image is displayed regardless of change of amount of light.

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.