Class / Patent application number | Description | Number of patent applications / Date published |
359234000 | With rotating or pivoting element (e.g., scanning discs) | 26 |
20080247024 | Optical system for a wash light - The present invention generally relates to an optical system for a wash light and specifically to a variable beam angle system which provides an improved range of beam angles and efficient light output. The present invention includes a light modulating optical element that has a central aperture that can be moved along the optical axis the system. Further the central aperture of the modulating element may be occluded by a diffusing element. The extent of the occlusion can be varied. At a first limit position when the optical system is adjusted so as to provide the minimum beam divergence the light beam will pass through the aperture with no intensity loss. In this configuration the first optical element has practically no effect on the beam. At a second limit position when the optical system is adjusted so as to provide the maximum beam divergence the diffusers cover the central aperture to diffuse the central illumination so as to avoid excessive intensity in the beam centre. | 10-09-2008 |
20080247025 | Optical system for a wash light - The present invention generally relates to an optical system for a wash light and specifically to a variable beam angle system which provides an improved range of beam angles and efficient light output. The present invention includes a light modulating optical element that has a central aperture that can be moved along the optical axis the system. Further the central aperture of the modulating element may be occluded by a diffusing element. The extent of the occlusion can be varied. At a first limit position when the optical system is adjusted so as to provide the minimum beam divergence the light beam will pass through the aperture with no intensity loss. In this configuration the first optical element has practically no effect on the beam. At a second limit position when the optical system is adjusted so as to provide the maximum beam divergence the diffusers cover the central aperture to diffuse the central illumination so as to avoid excessive intensity in the beam centre. The range of beam angles and light modulation can be further improved by means of a variable sized aperature. | 10-09-2008 |
20080304126 | Variable Aperture and Actuator Assemblies for an Imaging System - Variable aperture and actuator assemblies are provided for a radiation detector housing in an imaging system. The variable aperture assembly includes a ring mounted over the housing's window, a plate having a first aperture disposed over the window, an aperture blade operatively coupled to the ring so the blade moves laterally relative to the first aperture, and an aperture drive mechanism having a body and an actuator coupling member extending at an angle from the body. The drive mechanism is adapted to drive the blade laterally away from the first aperture when the member is moved in a first lateral direction, and over the first aperture to define a second aperture disposed over the window when the member is moved in a second lateral direction. The actuator assembly has an actuator and an actuator arm adapted to engage the actuator coupling member to control the lateral movement of the member. | 12-11-2008 |
20080316565 | Light Source Module and Display System Comprising the Light Source Module - A light source module and a display system comprising the light source module are provided. The light source system comprises a first light source module and a second light source module. The first light source module provides a light beam of a first color, and the second light source module provides a plurality of light beams, having colors different from the first color light beam. The light source system turns on the light beam of first color and the light beams with different colors according to a predetermined integrated timing, and transmits them to the light guiding system. The light guiding system guides the light beams provided by the light source system to the imaging system for imaging. The first light source module further comprises two light beams with the same color and switches in turn to function as one light beam. The switching is realized by using the mirror wheel. | 12-25-2008 |
20090021819 | SPECTRAL DISCRIMINATION APPARATUS AND METHOD - There is provided spectral discrimination apparatus for use in a scanning optical microscope, the spectral discrimination apparatus comprising dispersive means ( | 01-22-2009 |
20090021820 | Optical Imaging Device Having At Least One System Diaphragm - An optical imaging device (PL), in particular an objective for semiconductor lithography, is provided with at least one system diaphragm. The system diaphragm comprises a multiplicity of mobile plates, which are rotatably mounted. The plates have a spherical curvature. | 01-22-2009 |
20090153938 | Method for enhanced detection of faint targets in systems employing an external occulter - One embodiment of the present method and apparatus encompasses a method having the steps of: locating a rotateable occulter between a star having at least one planet and a light detector for detecting light from the star and the planet, the rotateable occulter having a central circular obscuration, and a plurality of hypergaussian-shaped petals that are located around the central circular obscuration; substantially blocking on axis light from the star with the central circular obscuration; rotating the occulter such that light from the planet oscillates due to changing azimuthal orientation; synchronizing the light from the planet to orientation of the occulter; and detecting off-axis light from the planet with the light detector. | 06-18-2009 |
20090207468 | METHOD FOR GENERATING A UNIVERSAL PINHOLE PATTERN FOR USE IN CONFOCAL MICROSCOPES - The invention relates to a pinhole disk, which can be used in a transmitted light mode as a filter disk, in particular in confocal microscopes, and consists of an optically transparent material with an inner hole having a fixed outer radius r | 08-20-2009 |
20090296185 | STACKED STRUCTURE, LIGHT CONTROLLING APPARATUS, AND METHOD OF MANUFACTURING STACKED STRUCTURE - A stacked structure which includes at least one movable member which is movable, and a guide shaft which regulates a movement of the movable member, and which is manufactured by using a metal layer formation process and an etching process, is for manufacturing an ultra-small variable aperture apparatus as a stacked structure by using a plating process, other metal-layer formation process, and the etching process, and for making small a shaking of a diaphragm blade as a movable member, which is caused due to the clearance around the shaft. A groove portion having a first distance and a groove portion having a second distance are formed continuously in the movable member, and the second distance is smaller than the first distance. A guide shaft regulates a movement of the movable member along the groove portion having the second distance. | 12-03-2009 |
20100053719 | OPTICAL SYSTEM FOR MERGING A FIRST AND A SECOND PARTIAL IMAGE BEAM, EACH PROCEEDING FROM A SPECIMEN, INTO A RESULTANT IMAGE BEAM - An optical system is described for merging a first and a second partial image beam emanating from a specimen into a resultant image beam allowing modification of the areal proportion of the respective first or second partial image beam in the resultant image beam. A stop arrangement comprises at least a first and a second movable stop element each comprising at least one stop region adapted to be brought into a working position with the first or second partial image beam. Movably arranged connecting means for connecting the two stop elements are provided to modify the respective areal proportions of the partial image beams in the resultant image beam by movement of the connecting means. | 03-04-2010 |
20100060968 | LASER PEN - A laser pen for illuminating a workpiece is provided including a pen body, a pen head secured to the pen body, and a laser generator accommodated in the pen head. The laser generator can emit a laser light. The measuring member is rotatable relative to the pen body and includes a graduated disk and a measuring disk. The graduated disk defines a circle of graduated sections, at least one of which is exposed out of the pen head. The measuring disk defines a circle of continuous through holes with different sizes. The measuring member coupled with the graduated disk can rotate relative to the pen body to align each one of the through holes with the laser generator, to adjust the amount of laser light passing through the one of the through holes and striking on the workpiece. | 03-11-2010 |
20100195182 | SPEED REDUCING MECHANISM, DRIVE DEVICE, AND OPTICAL INSTRUMENT - A speed reducing mechanism includes: a driven member; and a decelerating member transmitting a drive force from an actuator to the driven member. The driven member includes an engagement pin. The decelerating member includes: a teeth portion engaging a rotor pinion portion serving as the drive force from the actuator; and a cam slot engaging the engagement pin. The decelerating member is rotatably supported and is formed into a sheet shape thinner than a face width of the rotor pinion portion. | 08-05-2010 |
20110019257 | MECHANICAL SHUTTER AND ELECTRONIC DEVICE USING THE SAME - A mechanical shutter includes a base including a plate with an aperture and a protruding positioning projection. A core on the surface surrounds the aperture and includes a first end and a second end. The positioning projection is arranged between the first end and the second end, on one corner of the surface. A coil surrounds the core and a blade and a permanent magnet are pivoted on the positioning projection. When receiving current, the coil magnetizes to the core to generate a magnetic force and rotates the permanent magnet, and the blade, to cover and expose the aperture. An electronic device having the mechanical shutter is also provided. | 01-27-2011 |
20110032593 | Gravity operated, rotatable lens curtain for thermal imager - A device for in-situ calibration of a thermal imager on a UAS is disclosed. A rotatable lens curtain is provided with an aperture for the lens of a thermal imager to observe a field of view. The lens curtain comprises a balancing weight and blocking portion having a thermally uniform interior surface that functions as a calibration surface. The lens curtain is disposed with respect to the lens such that when the UAS is in a substantially level flight path, the lens is exposed to the field of view through the aperture. The lens curtain is provided such that when the UAS is rotated about an axis, the lens curtain maintains its absolute position relative to the Earth by virtue of the balance weight and the lens rotates within the lens curtain such that the blocking position obscures the lens from the field of view and the lens is exposed to the thermally uniform interior surface such that a calibration operation can be performed by the thermal imager. | 02-10-2011 |
20110128604 | LIGHT-AMOUNT ADJUSTING APPARATUS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING THE LIGHT-AMOUNT ADJUSTING APPARATUS - A light-amount adjusting apparatus includes a plurality of light-amount adjusting blades that causes a size of a light-passing aperture to change by rotation thereof. Each of the light-amount adjusting blades includes a base portion on which a rotation center portion and a driven portion are formed, and a blade portion that overlaps another light-amount adjusting blade in a light-passing direction so as to form the light-passing aperture. A thickness of the blade portion is thinner than that of the base portion. When the plurality of light-amount adjusting blades is rotated to set the light-passing aperture to be smaller than a full-opened aperture, a thickness of a portion that overlaps an adjacent stop blade is thinner than that of a portion that does not overlap the adjacent stop blade in each of the light-amount adjusting blades. The blades have high dimension accuracy, and deterioration of the optical performance of the apparatus is reduced. | 06-02-2011 |
20110242636 | SHUTTER ASSEMBLY WITH ROTATING MAGNET - A shutter assembly includes a base having a stop and a central aperture, a permanent magnet rotatably mounted on the base, and a shutter blade directly mounted on the magnet and configured to move between an open position exposing the aperture and a closed position blocking the aperture. The magnet contacts the stop in the open and closed positions. | 10-06-2011 |
20120154888 | LIGHT AMOUNT ADJUSTMENT APPARATUS AND OPTICAL APPARATUS - The light amount adjustment apparatus includes a base member formed with cam groove portions, light-blocking blades forming a variable light-passing aperture and being provided with a driving pin and a cam pin engaging with each cam groove portion, a driving ring disposed on an opposite side to a base member side with respect to the light-blocking blades and rotating with respect to the base member to transmit driving force to the driving pins so as to rotate the light-blocking blades. A base member side face of each light-blocking blade is supported by the base member. The driving ring is formed with first blade supporting portions protruding from a ring-shaped portion outward in a radial direction and including a driving hole portion with which the driving pin engages. Each first blade supporting portion supports an opposite side blade face to the base member side blade face of each light-blocking blade. | 06-21-2012 |
20130003156 | BLADE DRIVE DEVICE AND OPTICAL EQUIPMENT - A blade drive device includes: a board including an opening; a first blade movable toward and away from the opening, and including: a first slot; and first and second aperture openings each of which is smaller than the opening; a second blade movable toward and away from the opening and including a second slot; a first drive member including a first drive pin that engages the first slot and that is rotatable about a predetermined position; and a second drive member including a second drive pin that engages the second slot and that is rotatable about a predetermined position. | 01-03-2013 |
20130271808 | DIAPHRAGM ARRANGEMENT FOR GENERATING AN OBLIQUE ILLUMINATION IN A MICROSCOPE, AND MICROSCOPE - A diaphragm arrangement ( | 10-17-2013 |
20130314758 | LIGHT SCANNING MICROSCOPE AND MICROSCOPY METHOD - A light scanning microscope with an illumination module generates several illumination beams and moves them, in each case as a spot, in a predefined region of a sample to excite sample radiation. A detector module for confocal detection of the sample radiation excited by each spot includes a first detector, an imaging lens system, having an optical axis, for imaging the predefined region along an imaging beam path running from the sample as far as the first detector, and a rotatable diaphragm with several pinholes located in a pinhole plane. The diaphragm, upon rotation, may be located at least partially in the imaging beam path for confocal detection. A second detector may be arranged outside of the imaging beam path. A first beam splitter may be arranged in the imaging beam path between the sample and the diaphragm. The beam splitter deflects sample radiation onto the second detector. | 11-28-2013 |
20150077825 | VARIABLE APERTURE AND ACTUATOR ASSEMBLIES FOR AN IMAGING SYSTEM - An imaging system which includes a housing for a radiation detector having a window disposed above and in axial alignment with the radiation detector, a variable aperture assembly which includes a base ring having a first opening and mounted on the radiation detector housing such that the first opening is in axial alignment with the window, a plate having a first aperture and adapted to engage the base ring such that the first aperture is disposed over the window, at least one aperture blade each operatively coupled to the base ring, and an aperture drive mechanism having a body and an actuator coupling member extending at an angle from the body. In addition, the imaging system includes an actuator assembly having an actuator and an actuator arm, the actuator arm disposed adjacent to the radiation detector housing in proximity to the actuator coupling member. | 03-19-2015 |
359235000 | Continuously rotating apertured element | 5 |
20090279159 | DEVICE FOR CONFOCAL ILLUMINATION OF A SPECIMEN - A device for confocal observation of a specimen, having a mask, which is located in the illumination beam path and the image beam path and is rotatable around a central axis, the mask being provided with openings for generating an illumination pattern moving on the specimen, an arrangement of a plurality of focusing microoptics which is adjusted to the geometric arrangement of the openings of the mask and to the rotation of the mask in order to concentrate the illumination light by each of the microoptics into a respective one of the openings of the mask, and a beam splitter for separating light from the specimen from illumination light, wherein the beam splitter is arranged in the beam path between the mask and the arrangement of the microoptics, and wherein an optical arrangement is provided in the beam path between the mask and the arrangement of the microoptics. | 11-12-2009 |
20090323152 | COLOR WHEEL AND OPTICAL DEVICE EMPLOYING SAME - A projector includes a light source assembly, a digital micro-mirror device, and a projection lens. The light source assembly includes a lamp and a color wheel positioned for receiving light generated by the lamp. The color wheel includes a motor having a contacting portion, a filter, a light-blocker, and a light-isolating sheet. The filter is mounted on the contacting portion of the motor and includes a first area and a second area. Light beams used for forming an image only pass through the first area. The light-blocker is disposed on the filter opposite to the motor. The light-isolating sheet is disposed on the first area and positioned between the filter and the motor and configured for isolating the light beams arrived on the second area. | 12-31-2009 |
20110051214 | EXTENDABLE STROBE LIGHT DEVICE - The extendable strobe light device ( | 03-03-2011 |
20110090553 | CONFOCAL OPTICAL SCANNER - There is provided a confocal optical scanner capable of coping with variation of optical system magnification, a bright field image, and so forth. The confocal optical scanner comprising a pinhole disc with pinholes provided thereon, and rotation means for rotating the pinhole disc for obtaining a confocal image by rotating the pinhole disc with the use of the rotation means to thereby scan with illumination light and by causing optical feedback from the illumination light passing through the pinholes to form an image, wherein the confocal optical scanner is provided with a transfer mechanism for causing the pinhole disc to undergo reciprocating transfer between a position where the pinhole disc resides in an optical path of the illumination light, and a position where the pinhole disc is evacuated from the optical path of the illumination light. | 04-21-2011 |
20150131137 | Chromatic Converter for Altimetry - A chromatic converter for altimetry is disclosed which is intended to produce a real image of a predefined observation zone of a sample surface that is representative of the local height of this sample. This chromatic converter comprises: a device for illuminating the sample comprising a source of polychromatic light and arranged to cover all of the observation zone by means of N incident beams defining object points of the sample, an Offner autocollimator comprising a Mangin mirror for introducing axial chromatism into each of the N incident beams before they arrive at the sample surface to be reflected as N respective reflected beams, N filtering holes associated with the N respective reflected beams to convert them into filtered beams of low spectral width, intended to form image spots constituting the real image, and at least one polarization device making it possible to polarize the N incident beams and the N reflected beams. | 05-14-2015 |