Abstract: This light quantity adjustment apparatus is provided with a pair of first and second boards each having, an exposure aperture, and a plurality of diaphragm blades supported between the pair of broads to be openable and closable to adjust a quantity of light passing through the exposure aperture, and each of the diaphragm blades is comprised of a blade substrate in which are formed a base end portion positioned outside the exposure aperture, and a blade portion that moves forward and backward with respect to the exposure aperture to form a diaphragm aperture, and an auxiliary substrate, having a joint surface to be joined to the base end portion, in which are formed a first shaft portion penetrating the base end portion from the joint surface, and a second shaft portion provided to stand on the side opposite to the joint surface.

Abstract: Disclosed are a lens assembly and a camera module. The lens assembly includes a lens unit and a spacer provided at an upper portion or a lower portion of the lens unit. The spacer includes polymer having the glass transition temperature of about 140° C. to about 500° C.

Abstract: Briefly, embodiments of an optical micro-sensor are described.

Abstract: An optical lens is obtained by injection-molding a polyester resin containing a diol unit containing from 40 to 99% by mol of a unit derived from ethylene glycol and from 1 to 60% by mol of a unit derived from a diol having from 3 to 16 carbon atoms, and a dicarboxylic acid unit containing 50% by mol or more of a unit derived from a naphthalenedicarboxylic acid.

Abstract: A model eye includes an optically transmissive structure having a front curved surface to receive a coherent light beam, and an opposite rear planar surface for directing a portion of the coherent light beam back out the model eye through the front curved surface; and a material structure adhered to the rear planar surface of the optically transmissive structure that has a characteristic to cause a speckle pattern of the portion of the coherent light beam that is directed back out the front curved surface of the optically transmissive structure to have a bright-to-dark ratio of less than 2:1. In some embodiments, the material structure may include a fabric-reinforced polyethylene tape adhered to the rear planar surface of the optically transmissive structure by an adhesive. One example material structure which may be employed is duct tape.

Abstract: An objective lens has a numerical aperture of 0.8 or more and focusing a light beam of a wavelength ? of at least 450 nm or less on an optical information recording medium. In this objective lens, a wavefront-aberration deterioration level TOR, accumulative value of aberration deterioration, satisfies the equation (1): TOR=?{square root over (2.52(DCm32+DCm52)+(TSA32+TSA52))}{square root over (2.52(DCm32+DCm52)+(TSA32+TSA52))}?0.07[?rms]??(1) In the equation (1), TSA3 [?rms/?m] and TSA5 [?rms/?m] refer to a third-order thickness sensitivity level and a fifth-order thickness sensitivity level, which are generated when a thickness error from a predetermined thickness is +1 ?m, respectively. DCm3 and DCm5 refer to a third-order decentering sensitivity level and a fifth-order decentering sensitivity level, which are generated when a decentering error of each of lens surfaces is 1 ?m, respectively.

Abstract: A lens injection mold includes an upper mold and a lower mold, a cavity provided in the upper mold or the lower mold and having a shape corresponding to the rib portion having the concave portions in order to form the rib portion, and an upper core and a lower core disposed to be movable inside the upper mold and the lower mold and having an upper tip portion and a lower tip portion, respectively, the tip portions having a shape corresponding to the effective aperture portion such that the effective aperture portion is created by pressing injection liquid.

Abstract: An optical film for reducing color shift in an LCD is disposed in front of a liquid crystal panel of the LCD. The optical film includes a background layer, a plurality of engraved lens sections formed in the background layer such that the engraved lens sections are spaced apart from each other, and portions partially packed in the engraved lens sections. The partially packed portions contain a light dispersing material. The partially packed portions are implemented by mixing the light dispersing material into a base material. The refractive index of the light dispersing material is different from that of the base material.

Abstract: In a method for manufacturing a structure of curable material, a first structure from a first curable material is molded and cured on a substrate, and a second structure of a second curable material is molded and cured on a first surface of the first structure facing away from the substrate, so that at the first surface of the first structure a boundary surface forms between the first and second structures so that the first structure is not covered by the second structure in a passage area. A solvent is introduced into the passage area to dissolve the first curable material of the first structure so that a cavity forms between the second structure and the first surface of the substrate. After curing, the first curable material is soluble and the second curable material is insoluble for the solvent. An optical component and an optical layer stack are made of curable material.

Abstract: Disclosed is a lens wherein characteristic direction of aberration and the like can be easily determined, and a lens processing method. A reference point of the characteristic direction of aberration and the like is clarified by providing a thin portion (103) of a flange section (102) with a mark portion (106), and the characteristic direction of aberration and the like can be easily and accurately determined. Furthermore, by not removing the whole flange section (102) in the thickness direction, the center position of the lens is prevented from shifting at the time of attaching the lens (100), and the processing portion of the lens (100) can be prevented from hitting a case and the like at the time of transferring the lens (100).

Abstract: Disclosed is an optical element wherein a fine shape is transferred precisely to the outer edge side of a lens while increase in cycle time is prevented. In the optical element, the outermost periphery of the fine shape is covered with a protrusion section provided at a flange part. Accordingly, in injection molding, with the resin introduced into the molding cavity formed in the mold, the molding cavity section corresponding to the resin inflow port side of the protrusion section provided at the flange part is filled first, and thereafter the molding cavity section corresponding to the fine shape adjacent to the protrusion section is filled. Preheating a mold surface section, for transferring the fine shape, of a movable mold with the resin accumulated in the molding cavity corresponding to the protrusion section suppresses the temperature reduction of the mold surface section corresponding to the fine shape.

Abstract: Provided is an objective lens that enables the suppression of molding defects in a high NA lens, and an optical pickup device. As the objective lens (OBJ) includes a thick-flange section (FT), a thick-flange-section forming section (11c) can be formed on a first-flange-section transfer surface (11b) of a first mold (10) so as to connect to a gate section (GT), as shown in FIG. 2. Thereby, the cross sectional area of the gate section (GT) is increased, which allows optimizing the gate seal time, applying sufficient pressure, and effectively removing air.

Abstract: Urethane acrylates of the general Formula (I), corresponding salts, solvates or solvates of a salt thereof: wherein R1, R2, R3, R4 and R5 each independently represent a substituent selected from the group consisting of hydrogen, halogens, C1-6-alkyls, trifluoromethyl, C1-6-alkylthios, C1-6-alkylselenos, C1-6-alkyltelluros, and nitro groups, with the proviso that at least one of R1, R2, R3, R4 and R5 is not hydrogen; R6 and R7 each independently represent a substituent selected from the group consisting of hydrogen and C1-6-alkyls; and A represents a saturated or unsaturated or linear or branched C1-6-alkyl radical or a polyalkylene oxide radical having 2-6 ethylene oxide or propylene oxide units; processes for producing and methods of using the same.

Abstract: A plate-shaped lens member has concentric annular prisms each including an inner annular surface divided from a light-entrance surface of a conventional TIR lens and an outer annular surface divided from a light-reflection surface of the TIR lens in which the light-entrance surface has a concave shape provided in a lower portion of the TIR lens and the light-reflection surface has a convex shape positioned at a peripheral side of the TIR lens to surround the light-entrance surface. The light-entrance surface and light-reflection surface of the bulky TIR lens are Fresnel-ized or divided into a set of concentric annular prisms on a surface of the plate-shaped lens member and positions of divided portions from the TIR lens are efficiently arranged on the surface of the plate-shaped lens member.

Abstract: A beam splitter splits a laser beam emitted from a laser light source into a first laser beam that travels toward an object and a second laser beam. The second laser beam is received by a second photodetector. The second photodetector is positioned such that the light quantity of the second laser beam incident on the second photodetector is equal to that of the first laser beam incident on a first photodetector. A position calculator calculates displacement of the object relative to the laser light source on the basis of the difference between an output of the first photodetector and an output of the second photodetector.

Abstract: An optical tracking system is disclosed that provides more precise tracking and better performance in an optical mouse. It involves provides a collimated laser, and imaging a reflection of the collimated laser, such that the reflection has a substantially linear phase gradient. The reflection of the laser includes a pattern of speckles due to optical interference effects. The speckles are imaged such that the substantially linear phase gradient restricts any variation in intensity of the imaging of the speckles during a translating motion of the reflection, thereby providing superior tracking performance.

Abstract: The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a first lens group including a positive lens or a negative lens, a second lens group including a cemented lens in which at least one negative lens and at least one positive lens are cemented together, and a third lens group including a positive lens. Of lenses forming the first, second, and third lens groups, at least one lens surface is an aspheric surface.

Abstract: To produce a meniscus lens from synthetic quartz glass for use in a microlithography apparatus, which lens has a first optical surface (7) and a second optical surface (8) with the same direction of curvature as the first optical surface (7), SiO2 particles are formed by oxidation or flame hydrolysis of a silicon-containing starting compound and deposited layer by layer on a substrate to form a cylindrical SiO2 blank which contains layers with a surface normal extending in the direction of growth. To allow such layers, which have however the least possible adverse effect on optical or mechanical properties, it is proposed according to the invention that the blank is plastically worked in a hot forming process under the effect of a deforming force to form a preform (6), which has at least the first curved surface (7) and in which the layers are curved in the direction of curvature, and that the meniscus lens is obtained from the preform.

Abstract: There are provided a lens and a method of manufacturing the same. The lens includes: a first lens member having a lens surface formed thereon; a second lens member having a lens surface formed thereon; and an adhesive member adhering the first and second lens members to each other, wherein the first and second lens members include a ventilation path formed therebetween in order to discharge air therethrough.

Abstract: A lens includes a glass substrate, and a silicone layer adhered to the glass substrate and having a pattern formed on an outer surface thereof. Since the light-transmissive silicone layer is directly adhered to the glass substrate, without the use of an adhesive layer, the fabrication cost and thickness of the lens are reduced, and the objective of thinning the lens is achieved.

Abstract: Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is in a range from about 4% to about 20% and an optical clarity that is in a range from about 20% to about 60%. The light redirecting film has an average effective transmission that is not less than about 1.55.

Abstract: The invention relates to focusing optics (100) for a biosensor (10) which allow with simple means to accurately image an extended investigation region (13) onto a detector plane (P). To this end, the focusing optics (100) comprises at least two focusing lenslets (LL) that are arranged adjacent to each other such that they image an incident parallel light beam (L2) that is directed along a main optical axis (MOA) onto a common plane (P). The output light beam (L2) that is received by the focusing optics (100) may preferably originate from total internal reflection of a parallel input light beam (L1) at the investigation region (13) of a transparent carrier.

Abstract: A fixture structure is disclosed that is able to reduce the workload when adjusting a relative position of constituent components. The fixture structure includes a first member and a second member fixed with the first member by a screw. The first member has a first contacting surface, the second member has a second contacting surface in contact with the first contacting surface, the first member and the second member are fixed by the screw passing through the first contacting surface and the second contacting surface, a first notch is formed at an end of the first contacting surface, a second notch is formed at an end of the second contacting surface, and an inner end of the second notch of the second member is inside an inner end of the first notch of the first member.

Abstract: A resin bonding method according to the present invention is a resin bonding method for bonding a first resin and a second resin including (I) a step of irradiating spaces containing oxygen molecules with vacuum ultraviolet light having a wavelength of 175 nm or less, the spaces being in contact with surfaces of the first and second resins; and (II) a step of, after the irradiation, subjecting the surfaces to temperature rise while the surfaces are in contact with each other, to bond the first resin and the second resin together with the surfaces serving as bonding surfaces. In the step (I), the surfaces of the first and second resins may be further irradiated with the vacuum ultraviolet light. In this case, a light amount of the vacuum ultraviolet light having reached the surfaces is preferably, for example, 0.1 J/cm2 or more and 10 J/cm2 or less.

Abstract: An optical device having a specific form is provided that includes a resin molding compound having an adhesion-reducing, chemically modified surface layer.

Abstract: A lens device includes a base, groups of prism-like elements formed on the base and at least two alignment points formed on the base. Each of the groups and a related portion of the base form a lens. Each of the prism-like elements comprises an incidence surface in the form of a camber. The alignment points are used for alignment of a laser device with the lens device.

Abstract: This is to shed light on a glass composition suitable for a thin lens, and provide a lens (an optical component) manufactured with using the glass. A concave lens as an optical component is made of glass containing 12 to 16% of B2O3, 35 to 44% of La2O3, and 3 to 8% of ZnO, expressed as wt %. The concave lens has a thickness t1 in its center portion of 0.5 mm or less, and a ratio (W/t1) of an external diameter W with respect to the thickness t1 of 24 or more. The concave lens can be produced suitably by press forming.

Abstract: An eye simulation system for testing wavefront sensor systems, the eye stimulation system comprising a housing having a chamber with an opening for allowing light to enter said chamber, a fluid located in the chamber, said fluid having a known index of refraction, a lens positioned relative to said housing such that light entering the opening of the chamber passes through said lens, and a rotatable imaging surface positioned in said chamber such that light passing through said lens propagates through said fluid and is incident on said rotatable imaging surface.

Abstract: The present application discloses methods and systems for augmenting a field of view of a user. In one embodiment, a device may include a detector, a processor, and an array of visual indicators. According to an embodiment of the method, the detector may image an environment. The processor may identify within the environment imaged by the detector an object of interest. The processor may also determine a relative spatial location of the identified object of interest. Further, the array of visual indicators may be used to indicate the determined relative spatial location of the identified object of interest. In particular, a set of one or more visual indicators may be selected that has a relative spatial location in the array of visual indicators that is indicative of the relative spatial location of the identified object of interest.

Abstract: A laser system for processing thin film composite materials, such as solar cells and in general materials produced by depositing various layers of dielectric, semiconductor and conductor substances on rigid or flexible substrates of glass and/or polymers, comprising a laser generator (10) producing a laser beam; means (11, 12, 15) for transferring said laser beam into an optical fibre (14); and a focuser (17) applied to the end of said optical fibre (14) to supply said laser beam to said materials, wherein said transfer means (11, 12, 15) comprise a lens for focusing said laser beam and, coupled to said focusing lens, means for anticipating the focusing of said laser beam relative to the surface of said fibre (14) by a predetermined value.

Abstract: This invention is to provide a polyester carbonate copolymer suitable for an optical lens that has high refractivity and transparency and low birefringence and little optical strain, and optical lenses formed therefrom. This invention is a polyester carbonate copolymer for an optical lens, which comprises 67 to 95 mol % of a unit of the following formula (I) and 33 to 5 mol % of a unit of the following formula (II) and has a specific viscosity of 0.12 to 0.30, wherein Y in the formula (II) is a phenylene group or a naphthalenediyl group.

Abstract: An optical element that has a fine textured structure formed on an exit surface thereof. The fine textured structure satisfies the following conditions: ?min/1.71nsub<p<?min/2 and 0.6?min<h<1.5?min, where ?min is the shortest wavelength used in the optical element, nsub is the refractive index of a substrate on which the fine textured structure is formed, p is the pitch of the fine textured structure, and h is the height of the fine textured structure. The textured structure includes a part where some rays incident parallel to the optical axis are totally reflected.

Abstract: An optical element includes: an optically functional part having a first convex surface and a second convex surface intersecting with an optical axis and facing opposite to each other; and an outer peripheral part provided around the optically functional part, the outer peripheral part having a first outer peripheral surface extending from a periphery of the first convex surface and a second outer peripheral surface extending from a periphery of the second convex surface. The first outer peripheral surface and the second outer peripheral surface each are formed to be tapered. A thickness of the outer peripheral part in an optical axis direction is reduced toward a direction moving away from the optical axis.

Abstract: A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials.

Abstract: A transparent optical component (10) comprises at least one transparent set of cells (15) juxtaposed parallel to one surface of the component, each cell being separated by absorbing walls (18) parallel to the component surface, and each cell being hermetically sealed and containing at least one substance with an optical property. The optical component may be cut out along a predefined contour and optionally drilled. The invention also relates to a method of producing such an optical component and its use for the production of an optical element. The optical element may especially be a spectacle lens.

Abstract: A concave lens as an optical component is made of glass containing 20 to 22% of B2O3, 30 to 40% of La2O3, and 19 to 25% of ZnO, expressed as wt %. The concave lens has a thickness t1 in its center portion of 0.5 mm or less, and a ratio (W/t1) of a diameter W with respect to the thickness t1 of 24 or more. The concave lens can be produced suitably by press forming.

Abstract: A method for manufacturing a preferably asymmetrical lens element (5a) from a tempered blank (1) is characterized by: producing the lens element (5a) from a first partial volume (1a) of the tempered blank (1), whose thickness d is less than approximately 70%, preferably less than approximately 60%, particularly preferably less than approximately 50% of the thickness D of the tempered blank (1). Preferably, from a second partial volume (1b) of the tempered blank (1) at least a further lens element (5a?) is produced, wherein before the lens elements (5a, 5a?) are produced the tempered blank (1) is divided into the first and second partial volume (1a, 1b).

Abstract: In a metamaterial, a dielectric layer includes a host medium and dielectric bodies disposed in rows with predetermined intervals therebetween is sandwiched between a pair of conductive mesh plates each having holes, thereby forming a functional layer including dielectric resonators corresponding to the dielectric bodies. The metamaterial is configured by laminating the functional layers. The holes and the dielectric resonators are positioned coaxially and an electromagnetic wave is propagated in each of the functional layers in a propagation direction perpendicular to a multi-layered laminate surface such that the metamaterial function as a left-handed metamaterial in relation to the propagation direction perpendicular to the multi-layered surface.

Abstract: An optical element such as a reflector defining a differentiable fiducial surface having a first portion, with a flat region, that seamlessly adjoins, along a curved line, a second portion having a two-dimensionally curved region. The quality of optical imaging in the reflector is drastically improved by reducing the ratio of optical powers measured in two perpendicular directions along the two-dimensionally curved portion of the surface. The vehicular rearview assembly including such a reflector possesses a field-of-view (FOV) that is significantly higher than the FOV of a conventional flat mirror and facilitates visual access to a “blind spot” behind the vehicle.

Abstract: A method for manufacturing a molded article by melting and molding a granule of a polycarbonate resin at a temperature of 280 to 380° C., wherein the granule satisfies condition (a): when 100 parts by weight of the granule is cleaned with 100 parts by weight of a 1N nitric acid aqueous solution, the amount of an Fe compound eluted into the cleaning liquid of the 1N nitric acid aqueous solution is 1 to 100 ppb in terms of an Fe atom based on the granule. The molded article exhibits excellent color and transparency.

Abstract: A polarizing plastic lens comprising a polarizing film with low tendency to detachment from an optical resin layer. There is provided polarizing plastic lens comprising polarizing film constituted of a polyvinyl alcohol resin. Two optical resin layers of different thicknesses may be disposed on both surfaces of the polarizing film. The optical resin layers are formed by polymerizing a polymerization raw material composition in contact with the polarizing film. The polymerization raw material composition contains as one main component an isocyanated or isothiocyanated compound. The iscocyanate or isothiocyanate functional group reacts with the hydroxyl of polyvinyl alcohol resin of polarizing film to thereby form an urethane bond or thiourethane bond, so that the optical resin layers are strongly unified with the polarizing film.

Abstract: An electro-optic color imaging system includes an optical subsystem, a detector subsystem and a digital image processing subsystem. The system is used to image a color-correlated object. In the optical subsystem, the image surfaces for different color channels of the object are substantially separated. Thus, one color channel may be in focus while others are out of focus. The detector subsystem is located at a fixed image distance from the optical subsystem and captures the different color channel images of the object. The image processing subsystem estimates the image of the object by combining the captured color channel images based at least in part on an a priori estimate of the correlation between the color channels.

Abstract: Provided are a wafer lens production method, an intermediate die, an optical component, a molding die, and a molding die production method. The production method of a wafer lens (1) includes a first intermediate die production step using a die (7), a second intermediate die production step using the first intermediate die (8), and a wafer lens production step using the second intermediate die (9). A first intermediate-die substrate (80) is provided with a depressed section (85) on the surface facing the die (7). When photo-curable resin (84A) is pressed, at least a portion closer to the first intermediate-die substrate (80) among the top (71a) and the peripheral section (77) of the die (7) is arranged in the depressed section (85), and a gap is provided so that the die (7) does not contact with a depressed plane (85a) of the depressed section (85).

Abstract: A lens array module includes a light incident surface, a light emitting surface opposite to the light incident surface, and a plurality of first and second lens surfaces. The first lens surfaces are arranged on the light incident surface to form into an array. The second lens surfaces are arranged on the light emitting surface to form into an array. The center of curvature of each of the first lens surfaces located at two opposite sides of a first reference point on the light incident surface deviates away from the first reference point in a direction parallel to a first reference axis, and the center of curvature of each of the second lens surfaces located at two opposite sides of a second reference point on the light emitting surface deviates toward the second reference point in a direction parallel to the first reference axis. A projection apparatus is also provided.

Abstract: An optical head according to the present invention includes: a first light source that emits light with a first wavelength; a beam splitter that splits the light emitted from the first light source into a first light beam traveling in a first direction and a second light beam traveling in a second direction different from the first direction; a first collimator lens for changing degrees of divergence of the first light beam; a first mirror that changes the traveling directions of the first light beam, of which the degrees of divergence have been changed; a first objective lens for converging the first light beam, which has had its traveling directions changed, toward a storage layer of a first optical disk; a mover that holds the first objective lens; a first photodetector that receives the first light beam reflected from the storage layer of the first optical disk and converts it into an electrical signal; a condenser lens for condensing the second light beam; and a second photodetector that receives the sec

Abstract: A first toroidal ray guide defines an axis of revolution and has a toroidal entrance pupil adapted to image light incident on the entrance pupil at an angle to the axis of revolution between 40 and 140 degrees, and it also has a first imaging surface opposite the entrance pupil. A second toroidal ray guide also defines the same axis of revolution and has a second imaging surface adjacent to the first imaging surface. Various additions and further qualities of the ray guides, which form optical channels, are disclosed. In a method light emanating from a source at between 40-140 degrees from an optical axis is received at an entrance pupil of a ray guide arrangement that is circularly symmetric about the optical axis. Then the received light is redirected through the ray guide arrangement to an exit pupil in an average direction substantially parallel to the optical axis.

Abstract: A resin casting mold includes a mold member forming a cavity that includes first and second surfaces facing each other in a first direction. The mold member further includes an insert member which forms a part of a third surface and which is slidable in a second direction perpendicular to the first direction. At least one cross-sectional shape of the cavity satisfies h<A<H, where “A” is the length of the insert member in the first direction, “h” is a spacing in the first direction between a portion of the first surface closest to the insert member and a portion of the second surface closet to the insert member, and “H” is the length in the first direction on the third surface. The insert member is disposed to include a region having the spacing “h”.

Abstract: A device for acquiring equally blurred intermediate image to realize Extension of DOF imaging is characterized in that: the lens of said device produces space-invariant and approximately equal psf output in the designed range of the depth-of-field; the lens realizing space-invariant transfer characteristic is a multi-focal points lens with ray compensation; the angle of the ray guided by the multi-focal point changes in response to the object distance, but the corresponding position and energy distribution of the light spot on the image surface remain constant substantially.

Abstract: Selective fractionation and separation of melanin and use of fractionated or separated melanin in connection with light filters is disclosed. Further, light filters that use yellow melanin or melanin like materials prepared to have a yellow color and a melanin transmission spectrum in combination with a photochromic dye are disclosed. The yellow form of melanin has minimal impact on the perception of light intensity with transmission values greater than 80%. The combination allows for a single light filter suitable for both night driving and sunglass applications and which also preserve color perception.

Abstract: An objective lens for an optical pickup device is provided with a light-source-side lens surface by which laser light is converged, and a disc-side lens surface by which the laser light converged by the light-source-side lens surface is converged. The first lens surface and the second lens surface are configured to guide a part of a light collecting portion of the laser light reflected on the second lens surface to a position on an outside of the first lens surface.