Entries |
Document | Title | Date |
20080278790 | APPARATUS WITH ENHANCED RESOLUTION FOR MEASURING STRUCTURES ON A SUBSTRATE FOR SEMICONDUCTOR MANUFACTURE AND USE OF APERTURES IN A MEASURING APPARATUS - A measuring system is disclosed with enhanced resolution for periodic structures on a substrate for semiconductor manufacture. Aperture structures of varying geometries are provided in the illumination beam path. The aperture structures differ regarding the transmission characteristics of light, and which adjust the intensity distribution of the diffraction orders in the imaging pupil of the optical system. | 11-13-2008 |
20090034044 | LIGHT SOURCE SHINING THROUGH A TEMPLATE ON TO A BASE - A system in at least some embodiments comprises a housing containing a processor and a base coupled and supporting the housing. The housing comprises a slot adapted to receive a removable template. A slot is provided within the housing. The slot is adapted to receive a removable template. The housing also comprises a light source that shines through the template on to the base. | 02-05-2009 |
20090034045 | PROJECTOR WITH A LENS BARRIER MODULE - An exemplary projector includes a main body, a lens at a front of the main body and a lens barrier module positioned at the front of the main body for covering the lens when the projector is not in use or exposing the lens when the projector is in use. The lens barrier module includes a front bezel defining an opening aligned with the lens, a lens frame secured to a rear side of the front bezel and separated from the front bezel, and a lens cover slidably received between the front bezel and the lens frame. The lens frame defines an aperture aligned with the opening. The lens cover is positioned in a manner to selectively cover or uncover the lens. | 02-05-2009 |
20090296183 | LIGHT QUANTITY ADJUSTING DEVICE, LENS BARREL AND IMAGE PICKUP APPARATUS - Disclosed herein is a light quantity adjusting device including: first and second diaphragm blades shiftably provided to adjust a size of a diaphragm aperture; a neutral density filter blade provided shiftably in the same direction as the first and second diaphragm blades and having a neutral density filter adapted to cover the diaphragm aperture to reduce a quantity of light passing through the diaphragm aperture; and a drive mechanism adapted to shift the first and second blades and the neutral density filter blade; wherein the drive mechanism is configured to include an actuator, a first cam groove, a second cam groove, a third cam groove, an arm, a first cam-pin, and a second cam-pin. | 12-03-2009 |
20100097682 | Light Beam Delivery System With Power, Wavelength And Spot Size Control - A beam delivery system for treating target tissue that includes an input for receiving a light beam, a variable attenuator for providing variable attenuation of the light beam, a power and wavelength detection assembly, a spot size adjustment assembly, and a controller. The power and wavelength detection assembly measures the power level of the beam, and detects when unwanted wavelengths are present in the light beam. The spot size adjustment assembly selectively feeds the beam through different optical fibers to achieve different spot sizes of the beam. The controller controls the variable attenuator, the power and wavelength detection assembly, and the spot size adjustment assembly to achieve the desired power and wavelength, and beam spot size. | 04-22-2010 |
20100097683 | Neutral filter, light quantity adjustment apparatus, image pickup apparatus, manfacturing method of neutral filter, and die-cutting forming apparatus neutral filter - The present invention is to provide an optical filter for enabling a neutral filter for suppressing the quantity of passage light in an optical path to be mass-produced in an accurate position of an optical path opening with correct density characteristics without fluctuations, and the neutral filter is comprised of a filter | 04-22-2010 |
20100220375 | LENS UNIT, LIGHT EMITTING DIODE HEAD, EXPOSURE DEVICE, IMAGE FORMING APPARATUS, AND READING APPARATUS - A lens unit includes a lens array, a first light blocking member, and a second light blocking member. The lens array includes a plurality of lens pairs arranged in a substantially linear arrangement. Each of the lens pairs includes a first lens for forming an inverted reduced-size image of an object and a second lens for forming an inverted enlarged-size image of the inverted reduced-size image. The first light blocking member is disposed between the first lenses and the second lenses, and includes first apertures. The second light blocking member includes second apertures arranged in a substantially linear arrangement corresponding to an arrangement interval of the lens pairs, and having different opening portion shapes depending on a position of the lens pairs in an optical axis direction of the lens pairs. The second light blocking member is disposed at least between the first lenses and an object plane or the second lenses and an image plane. | 09-02-2010 |
20100232002 | System and method for illumination attenuation - Generally speaking, the output brightness of an illuminator is varied by chopping an output light beam such that the beam is alternately interrupted and unhindered. An interrupter can be rapidly moved into and out of the transmission path of a light beam. The brightness of the light beam received at a site will be attenuated based on the amount of time per cycle the light beam remains obstructed versus unhindered. | 09-16-2010 |
20110043881 | DEVICE AND PROCESS FOR CONTROLLED CONVEYING OF DIFFERENT VISUAL IMPRESSIONS OF A ROOM WHILE RETAINING IDENTICAL ROOM ILLUMINATION - The invention concerns a device for the controlled conveying of different visual impressions of a room while retaining identical room illumination, consisting of at least two sources of light and at least one set of shutter glasses, where at least one of the light sources (La, Lb, Lc) is chronologically pulse controlled and the shutter glasses (S | 02-24-2011 |
20110058242 | LIGHT AMOUNT ADJUSTMENT APPARATUS HAVING PLURALITY OF PLATE-LIKE LIGHT-SHIELDING BLADE MEMBERS AND METHOD OF MANUFACTURING THE LIGHT-SHIELDING BLADE MEMBERS - A light amount adjustment apparatus having a plurality of light-shielding blade members that can be so manufactured by simple machining as to reduce undesired reflection on end faces of the light-shielding blade members which are parallel with the optical axis and prevent degradation in image quality such as flare and ghosts. A driving force of a stepping motor is transmitted to the light-shielding blade members so that an aperture diameter can be changed. The light-shielding blade members are formed by injection molding of a light-shielding resin material. By performing blasting on an end face of each light-shielding blade member in a part that forms the aperture diameter, an aperture end face whose surface is roughened while substantially maintaining outside dimensions of the light-shielding blade member is formed, and an oblique portion tilted relative to the aperture end face is formed. | 03-10-2011 |
20110096385 | PLASMA SHUTTER FORMING APPARATUS AND FORMING METHOD - A plasma shutter forming apparatus for forming a plasma shutter used in a system configured to generate and accelerate radiations by irradiating a target with a laser pulse and generating a high-density plasma for blocking the laser pulse which is returned as a feedback light to upstream of the system without being absorbed by the high-density plasma, including a plasma shutter generating target, and a plasma shutter triggering laser irradiator, wherein the laser pulse from the plasma shutter triggering laser irradiator is directed to the plasma shutter generating target to generate the high-density plasma and form the plasma shutter, thereby blocking the laser pulse which is returned as the feedback light. Optics are prevented from becoming damaged by feedback light reflecting when generating the high-density plasma in a laser-driven radiation generating system and returning back to the upstream of the laser system. | 04-28-2011 |
20110116149 | BLADE SPEED ADJUSTABLE MECHANISM AND FOCAL PLANE SHUTTER HAVING THE SAME - A blade speed adjustable mechanism includes: a board having an opening; a shutter blade opening or closing the opening; a drive lever supported by the board and bringing the shutter blade into an overlapped operation or an expanded operation; a biasing member engaging the drive lever and biasing the shutter blade in an overlapped direction or in an expanded direction; a ratchet member engaging the biasing member and having ratchet teeth; an engagement member holding the ratchet member at a desired stop position and adjusting an biasing force of the biasing member by changing the stop position. The engagement member has a plurality of pawl portions different from each other in length. The pawl portion engages the ratchet tooth to hold the ratchet member at the stop position. A difference in length between the pawl portions is shorter than a distance corresponding to a pitch of the ratchet teeth. | 05-19-2011 |
20110164297 | BLACK COATING FILM AND PRODUCTION METHOD THEREFOR, BLACK LIGHT SHADING PLATE, AND DIAPHRAGM, DIAPHRAGM DEVICE FOR LIGHT INTENSITY ADJUSTMENT, SHUTTER USING THE SAME, AND HEAT RESISTANT LIGHT SHADING TAPE - A heat resistant black coating film which is capable of making the surface of optical members to be low reflection property and black property, a black light shading plate having a resin film using the same as a base substrate, and a diaphragm, a diaphragm device for light intensity adjustment and a shutter using the same, and heat resistant light shading tape. | 07-07-2011 |
20110211244 | HIGH-PROBABILITY HERALDED SINGLE-PHOTON SOURCE AND RELATED METHOD - A system and method is provided for a source for a heralded single photon comprising a correlated photon-pair generator that provides bursts of multiple photon pairs that may be odd or even in number of pairs, one of each pair having a first but not a second characteristic and the other of each pair having the second but not the first characteristic; a first optical path for photons of pairs having the first characteristic; a second optical path for photons of pairs having the second characteristic; a two-photon absorber in the first optical path that, for each burst of photons, reduces the number of first characteristic photons in the first path to zero or one, depending on whether the number of photon pairs in the burst is even or odd; a photon detector in the second path having a heralding signal output to indicate when the number of photons in the burst is odd; and an optical switch coupled to the output of the second optical path and connected to operate in response to the heralding signal. | 09-01-2011 |
20120008186 | VARIABLE SPACE SHUTTER FOR LED DISPLAY - A variable space shutter includes: a first frame having vertically spaced slats forming vertical openings; a second frame having a horizontal indented channel, the second frame being affixed to the first frame around a periphery of the first frame; and a shutter part having vertically spaced slats forming vertical openings, the shutter part being sandwiched between the first and second frames such that a portion of the shutter part rests within the horizontal indented channel to permit selective sliding movement of the shutter within the channel between a first position, wherein the vertical openings of the first frame line up with the vertical openings of the shutter part, to permit light to pass through the variable space shutter, and a second position, wherein the vertical openings of the first frame line up with the vertical slats of the shutter part, to block light from passing through the variable space shutter. | 01-12-2012 |
20120026569 | System and method for illumination attenuation - Generally speaking, the output brightness of an illuminator is varied by chopping an output light beam such that the beam is alternately interrupted and unhindered. An interrupter can be rapidly moved into and out of the transmission path of a light beam. The brightness of the light beam received at a site will be attenuated based on the amount of time per cycle the light beam remains obstructed versus unhindered. | 02-02-2012 |
20120033282 | EYEGUARD WITH AUTOMATIC DIAPHRAGM - An eyeguard for use on the eye-end of an optical instrument is provided having an instrument-end member adapted for connection to the optical instrument, an eye-end member adapted to interface with the periocular portion of the user's face, a hinge member disposed between the instrument-end and eye-end members having two flexible annular hinges, and a diaphragm comprising a plurality of segments attached to the interior of the hinge member between the annular hinges. The force of the user's eye pressing the eye-end member toward the instrument-end member deforms the annular hinges such that the normally closed diaphragm segments move to an open position, allowing light to pass through the eyeguard. | 02-09-2012 |
20120044558 | DIAPHRAGM DEVICE FOR PROJECTOR - A diaphragm device for projector includes a first gear unit, a second gear unit and two diaphragm plates. The first gear unit includes a partial circular arc portion and a gear portion with partial no tooth. The second gear unit includes a circular arc portion corresponding to the partial circular arc portion, and a pinion and a gear corresponding to the gear portion with partial no tooth. When the partial circular arc portion abuts on the circular arc portion, the gear does not rotate. When the partial circular arc portion does not abut on the circular arc portion, the gear portion with partial no tooth meshes the gear to transmit rotation of the first gear unit to the gear. The two diaphragm plates each on which a rack meshing the pinion is formed, moves in directions opposed to each other according to rotation of the pinion. | 02-23-2012 |
20120092742 | MASK - A light irradiation apparatus and a method of manufacture a photo-aligning layer are disclosed. A mask included in a light irradiation apparatus according to one embodiment is configured to irradiate the light having straightness at a high level of illumination to a subject that is apart from the mask with a certain distance. A photo-aligning layer with a desired alignment pattern can be fabricated using the mask. | 04-19-2012 |
20120154884 | Light quantity adjustment apparatus and image pickup apparatus - A light quantity adjustment apparatus includes a pair of substrates having a light-path aperture; a plurality of diaphragm blades disposed between the pair of substrates; a driving ring that opens and closes the plurality of diaphragm blades; and a driving device. The plurality of diaphragm blades is supported by the substrate via a first guide plate made of a resin film. The substrate and the first guide plate are provided with guide grooves fitted into protrusions formed in the plurality of diaphragm blades to guide the blades. Guide grooves of the substrate are formed of concave grooves. Guide grooves of the first guide plate are formed of through holes. The through holes of the first guide plate have a narrower width than the concave grooves of the substrate to engage in the protrusions of the diaphragm blades and to guide the diaphragm blades in the open and close direction. | 06-21-2012 |
20120154885 | LIGHT CONTROL FILM - Light control films, and a method for manufacturing tools used to microreplicate light control films. | 06-21-2012 |
20120200904 | ACTUATING MECHANISM FOR A VIEWING PANEL - A viewing panel unit is disclosed, comprising: a first panel comprising one or more light transparent regions that are substantially transparent to visible light and one or more light hindering regions which substantially hinder transmission of visible light; a second panel comprising one or more light transparent regions that are substantially transparent to visible light and one or more light hindering regions which substantially hinder transmission of visible light; and an actuator ( | 08-09-2012 |
20120250132 | DISPLAY APPARATUS INCLUDING A SHUTTER - A display apparatus includes a first substrate, a second substrate facing the first substrate, and a plurality of pixels including a first pixel. The first substrate includes first openings through which a light is transmitted. The pixels are disposed on at least one of the first substrate and the second substrate. The first pixel includes a first flexible electrode, a second flexible electrode, and a shutter including second openings and disposed between the first and second flexible electrodes. The first flexible electrode receives a first voltage. The second flexible electrode receives a second voltage different from the first voltage. The shutter receives a third voltage. The shutter moves to the first flexible electrode or the second flexible electrode according to a level of the third voltage, thereby controlling the position of the second openings relative to the first openings to control the transmission of the light. | 10-04-2012 |
20130083384 | OPTICAL PROBE - An optical probe includes a laser light source that emits laser light, a collimator lens that converts the laser light into parallel light, a light shape changing section that converts the parallel light into linear laser light, an irradiating section to irradiate an object with a selected part of the linear laser light, an image pickup section that picks up an image of the object based on the laser light reflected from the object, and a controller that controls irradiation of the linear laser light. The linear laser light is composed of a plurality of parts including one end part and the other end part; and the irradiating section irradiates the object with the parts of the linear laser light sequentially from the one end part to the other end part. | 04-04-2013 |
20130194648 | OPTICAL IMAGING APPARATUS AND OPTICAL IMAGING METHOD USING THE SAME - An optical imaging apparatus operable to form a sharp stereo image in the air beside an observer, includes a flat plate-shaped light-controlling panel having numerous light-reflecting elements disposed side by side, each of which allowing light from the object to pass therethrough by reflecting the light by a first reflective surface and a second reflective surface disposed in a crossed arrangement with respect to the first reflective surface, wherein the light-controlling panel has a plurality of segment light-controlling panels in which the first reflective surfaces and the second reflective surfaces included are parallel, respectively, centerlines P of the respective segment light-controlling panels, when viewed from thereabove, intersect at a point O on the light-controlling panel, and bisectors which bisect crossing angles between the first and the second reflective surfaces of the light-reflecting elements existing on the centerlines P coincide with the centerlines P when viewed from thereabove. | 08-01-2013 |
20130335799 | PHOTOLUMINESCENCE DISPLAY DEVICE - A display device includes a light source unit that emits a first light with a first wavelength, an optical filter that converts the first light to a second light, and an optical shutter that transmits or reflects the first light or the second light. | 12-19-2013 |
20140063581 | OPTICAL SWITCHING ASSEMBLY WITH OVER-CENTER LOCK - An optical switching assembly having an optical path therethrough includes an optical element, a base frame, an optical support that supports the optical element and is pivotably mounted to the base frame, and a linkage. The linkage interconnects the base frame and the optical support to effect movement of the optical support between an aligned position where the optical element is in the optical path and a non-aligned position removed from the aligned position. The linkage has two over-center positions that respectively correspond to the aligned position and the non-aligned position. No additional energy is required to hold the linkage in the over-center positions. | 03-06-2014 |
20140139899 | DISPLAY DEVICE - A display device includes an image display, an optical component, a light control component. The image display emits light including an image. The optical component has a focal distance D1. The light control component is provided between the image display and the optical component on an optical path of the light. The light control component includes a central aperture transmitting a first portion of the light emitted, and a peripheral aperture provided around the central aperture and transmitting a second portion of the light. The light control component blocks a portion of the light other than the first and second portions. The focal distance D1, a distance D2 between the optical component and the light control component, and an aperture spacing d0 between the central aperture and the peripheral aperture satisfy a relationship: d0·D1/D2>2. | 05-22-2014 |
20140300943 | APERTURE DEVICE AND OPTICAL INSTRUMENT - An aperture device includes: a board including an opening; a blade opening and closing the opening; and first and second receiving plates sandwiching the blade; wherein the first receiving plate includes a pressing portion partially pressing the blade toward the second plate. | 10-09-2014 |
20150338559 | Frontal Aperture Stop for IR Optics - An IR imaging system is presented comprising an optical assembly comprising an optical assembly with a lens housing made of an organic polymer, the housing structurally defining a frontal aperture stop having an object-side surface and a detector-side surface, characterized in that the aperture stop comprises a metallic diaphragm. This results in an affordable design, well suited to be build into portable or mobile devices, in particular when protected behind an IR-transparent window. | 11-26-2015 |