Abstract: A video overhead display system for displaying an image of an object includes an image enlarging unit for magnifying an optical image of the object. An image pick-up unit receives the magnified optical image of the object and converts the magnified optical image into an electronic image signal. An image output unit receives the electronic image signal and converts the electronic image signal into a displayed image.

Abstract: An internal lighting device for a video microscope system coupled to a video machine, such as a video presenter, that can be used to observe an object. The internal lighting device uses a source mounted in the video machine or on a video microscope, and comprises a light source for projecting a predetermined amount of light and a light transmitter for projecting the light emitted from the light source part to an object to be observed using the video microscope system.

Abstract: A real image finder includes an objective lens group, an inverting group and an eyepiece lens group. The objective lens group includes a first lens unit of a negative refractive power, a second lens unit of a positive refractive power, a third lens unit of a positive refractive power, and a first prism of a positive refractive power, where an exit surface of the first prism is convex toward an image. The objective lens group forms an inverted image. The inverting group forms an erect image by inverting the image formed through the objective lens group. The eyepiece lens group magnifies the erect image formed by the inverting group.

Abstract: The present invention relates to a variable magnification finder comprising an objective lens group having a positive refractive power for enabling a wide angle view of an object. The objective lens group includes a first lens sub-group having either a negative or a positive refractive power; a second lens sub-group having a negative refractive power; a third lens sub-group having a positive refractive power and having a cemented lens with at least two pieces; and a fourth lens sub-group having a positive refractive power. The third lens sub-group is movable for magnifying the image, and the second lens sub-group is movable for compensating the focus of the magnified image. The finder further comprises an eyepiece lens group having a positive refractive power for viewing the image.

Abstract: Methods and systems consistent with the invention generate a motion profile of a motor. A reference acceleration profile, a reference velocity profile, and a reference displacement profile are first defined. Displacement-velocity data defining displacement data with respect to velocity data is then stored in a memory. A plurality of conversion constants which include a maximum velocity ratio K1, a maximum acceleration ratio K2, and a displacement conversion constant K3, are calculated, are then calculated using following equations: ##EQU1## where A.sub.max represents a maximum acceleration value in the reference acceleration profile, V.sub.max represents a maximum velocity value in the reference velocity profile, a.sub.max represents a maximum acceleration value in the generated profile, and V.sub.max represents a maximum velocity data in the profile to be generated. The system then determines a position data of the motor and maps the position data into a reference displacement data.

Abstract: The video editor in accordance with the present invention comprises a scan converting module, a frame synchronizing module, a video delay module, a mixing/key effect module, a special effect module, a waveform generating module, a superimposing module and a buffer. The video editor with a scan convert module may receive a video signal from various video cameras and an analog RGB signal from various personal computers. A video system using a video editor with a scan converting function is also disclosed. The video system includes one or more video cameras connected to input terminals of the video editor and a display or a recording device connected to output terminals of the video editor.

Abstract: Camera finder systems consistent with the present invention, used for observing an object and for use with a camera, include an objective lens system for forming a first image of the object and for magnifying the first image. An inverting optical system inverts the first image received from the objective optical system. Also included is an eyepiece system for observing the inverted image received from the inverting optical system. Further, the camera finder system satisfies the following conditions:12.ltoreq.D.ltoreq.20, and1.0.ltoreq.L/D.ltoreq.4.5,where:D represents a distance between an exit surface of the inverting optical system and an entrance surface of the eyepiece system; andL represents a distance between an entrance surface of the objective optical system and a first image plane.

Abstract: A component mounting device mounts electronic components from several component stages on a printed circuit board. The component mounting device includes a mounting head, a camera unit, and a selection unit. The mounting head, movably installed between the component stage and the printed circuit board, includes a suction element and a position determination chuck. The suction element picks up and thereafter supports the component, and the position determination chuck corrects the position of the supported component. The camera unit, installed within a movement range of the mounting head, receives an image of the component supported by the suction element. The selection unit selects either the position determination chuck or the camera unit to correct the position of the component supported by the suction element.

Abstract: A zoom lens system including a first lens group of a positive refractive power having two lenses which moves linearly toward an object for a magnification change; a second lens group of a negative refractive power at least having one lens of a negative refractive power and one lens of a positive refractive power adhered thereto; a third lens group of a positive refractive power which moves non-linearly toward the object for a magnification changes; and a fourth lens group of a negative refractive power which moves linearly toward the object for a magnification change.

Abstract: The invention comprises a zoom lens system including two lens groups. The first lens group has an overall positive refractive power, and includes three sub-group lens units. The first sub-group lens unit has a negative refractive power, the second sub-group lens unit has a positive refractive power, and the third sub-group lens unit has a positive refractive power. The second lens group has an overall negative refractive power and includes two sub-group lens units. The fourth sub-group lens unit has a positive refractive power, and the fifth sub-group lens unit has a negative refractive power. The magnification of the system can be changed by varying a distance between the first lens group and the second lens group, wherein the following conditions are satisfied:Mt/Mw>1.95,0.20<fbw/fw<0.

Abstract: A zoom lens system, includes a first lens group of a positive refractive power viewed from the object's side having a concave lens and convex lens adhered to the concave lens and at least two meniscus lenses whose entrance surfaces are convex; a second lens group of a negative refractive power; a third lens group of a positive refractive power having at least one biconvex aspherical lens, at least one convex lens and a concave lens; and a fourth lens group of a positive refractive power having one concave lens and two convex lenses.The second lens group is movable for changing the magnification, and the fourth lens group is movable for compensating the shift of an image plane caused by the movement of the second lens group and for focusing an image.

Abstract: An apparatus for magnetically recording photographic data for an advanced photo system camera comprises a film transport sensing unit for sensing perforations in a film and for generating a signal per each perforation, an operation control unit for controlling the operation of the magnetic recording according to the signal from the film transport sensing unit, and a magnetic recording unit for magnetically recording photographic data on the film, based on the signals from the operation control unit. The apparatus further comprises a film transport unit for advancing successive frames of the film according to the signals from the operation control unit.

Abstract: An IC card and a method of fabricating the same are provided in which the IC card substrate is formed of a blackened metal core plate to improve thermal, electrical and mechanical stability of the IC card.

Abstract: A vacuum chuck according to the present invention includes a base plate having an outer wall formed in a predetermined height around the base plate. In addition, at least one inner wall, having the same height as the outer wall, is formed on the base plate so as to divide the space surrounded by the outer wall into a plurality of compartments. A plurality of vacuum holes are provided in the respective compartments and connected to a vacuum source. By using the vacuum chuck according to the present invention, variously sized parts can be fixed to the vacuum chuck by making the compartments of the vacuum chuck in various sizes.

Abstract: A device for setting a film state for use in a camera having a chamber for storing a film cartridge and a chamber door, and the film cartridge further including a data disk having photographic information recorded thereon. The device includes a photographic information reader which reads the photographic information on the data disk. A door detector detects whether the chamber door is open. A controller determines whether the film is unexposed based upon the photographic information, determines whether the chamber door opens within a predetermined period of time after the chamber door was closed, and outputs a control signal which sets the data disk to an unexposed state if the film is unexposed and the chamber door opens within the predetermined period of time. A transport unit moves the film and sets the data disk based upon the control signal.

Abstract: A component mounting apparatus includes an eccentric cam installed to rotate counterclockwise or clockwise with respect to a holder of a mounting head, and a follower connected to a suction bit and contacting a surface of the eccentric cam. Rotating the eccentric cam by a predetermined degree moves the follower which, in turn, moves the suction bit up and down. The shape of the surface of the eccentric cam is designed such that the upward-movement speed of the suction bit is different from the downward-movement speed of the suction bit due to the rotation of the eccentric cam. The shape of the surface of the eccentric cam is such that the suction bit moves slowly downward and then rapidly upward when the eccentric cam rotates in one direction, and moves rapidly downward and then slowly upward when the eccentric cam rotates in the other direction.