Abstract: Embodiments of the present disclosure generally relate to methods of forming a substrate having a target thickness distribution at one or more eyepiece areas across a substrate. The substrate includes eyepiece areas corresponding to areas where optical device eyepieces are to be formed on the substrate. Each eyepiece area includes a target thickness distribution. A base substrate thickness distribution of a base substrate is measured such that a target thickness change can be determined. The methods described herein are utilized along with the target thickness change to form a substrate with the target thickness distribution.

Abstract: The finder includes, in order from an object side to an eye point side, a negative objective lens group, and a positive eyepiece lens group. The eyepiece lens group consists of, in order from the object side to the eye point side, a negative first lens, a positive second lens, and a negative third lens. During diopter adjustment, only the second lens moves. The finder satisfies a conditional expression determined in advance.

Abstract: An imaging lens and an imaging device furnished with same, including a first lens group having a positive refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power, disposed in sequence from the object side, wherein zooming from a point at infinity to an object at the near point is performed by moving the second lens group along an optical axis toward the object side while affixing the first lens group and third lens group, and satisfying predetermined conditional expressions.

Abstract: Provided is an observation apparatus including an image display element and an eyepiece optical system to be used to observe an image displayed on the image display element, in which the eyepiece optical system includes a plurality of lenses consisting of, in order from an image display plane side to an observation side, a first lens having a negative refractive power and a second lens having a positive refractive power, and in which a paraxial curvature radius of a lens surface on the image display plane side of the first lens, a paraxial curvature radius of a lens surface on the observation side of the first lens, a paraxial curvature radius of a lens surface on the image display plane side of the second lens, and a paraxial curvature radius of a lens surface on the observation side of the second lens are set appropriately.

Abstract: In an ocular optical system including a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, and a fourth lens having positive refractive power which are arranged in this order from an object side to an observation side, the shape and position of each lens is set appropriately to increase the angle of view and to minimize on-axis and magnification chromatic aberrations.

Abstract: The present invention provides an eyepiece optical system for observing an image displayed on an image display surface. The eyepiece optical system includes a first lens having a positive refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power, which are arranged in this order from an image display surface side to an observation side. A focal length of the first lens, a focal length of the third lens, a curvature radius of a lens surface on the observation side of the first lens, and a curvature radius of a lens surface on the image display surface side of the second lens are appropriately set.

Abstract: A telescope remote display and control system for viewing objects through a telescope and controlling the telescope remotely includes a wearable display, a manual controller, a camera, an mechanical adjuster, and an integration system, all of which are electrically interconnected. In the preferred embodiment, the camera, mechanical adjuster, and integration system are all attached to a target telescope and tripod assembly, while the wearable display and manual controller are positioned remotely. The integration system operates as the control hub, allowing a user to view images from the telescope with the wearable display by way of signals from the camera and control the positioning of the telescope with the manual controller through manipulation of the mechanical adjuster.

Abstract: A camera device (2) for capturing a surrounding area of a driver's own vehicle has optoelectronics including a high-resolution image capturing sensor and a wide-angle optical system for capturing at least one initial image of the surrounding area. The optoelectronics are configured to generate, from the at least one initial image, a processed output image (4) that has, compared to the associated initial image, at least one non-modified image section (4a) and a resolution-reduced remainder image region (4b) bordering on the at least one non-modified image section (4a).

Abstract: Technologies for virtual reality display include a computing device coupled to a head-mounted display device. The head-mounted display includes a display panel, a pixel emission controller, and a pancake lens assembly. The display panel includes a display surface that emits light as multiple pixels. The pancake lens assembly includes folded optics to direct light to an eye box. The pixel emission controller applies an emission profile to each pixel of the light as a function of the position on the display surface of the corresponding pixel. The emission profile is determined based on an optical coupling between the position on the display surface through the pancake lens assembly to the eye box. The beam width of each pixel may decrease and the beam angle relative to an optical axis may increase as distance from the optical axis increases. Other embodiments are described and claimed.

Abstract: A display device includes an intermediate-image formation unit configured to form an intermediate image on a screen, a projection unit configured to project the intermediate image toward a transmission/reflection member to display a virtual image, a reception unit configured to receive virtual image information about the virtual image, and a correction unit configured to rotate the intermediate image within the screen to correct a defect of the virtual image in accordance with the virtual image information.

Abstract: An eyepiece optical system for a near-eye display, and a head-mounted display device are disclosed. The eyepiece optical system has a first lens, a reflection unit, a second lens, and a third lens group. An optical axis of the second lens and an optical axis of the third lens group are coaxially with each other and coaxially with an optical axis of the first lens when they are reflected by the reflection unit. The third lens group has a third lens. An optical surface of the first lens proximate to the eye viewing side is convex to an eye viewing direction, and an optical surface of the second lens proximate to the miniature image displayer side is concave to a miniature image displayer direction. The present eyepiece optical system has advantages such as compact structure, small size, high optical resolution and so on, which gives the best visual experience.

Abstract: An optical imaging system for pickup, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power having a convex object-side surface, the second lens element with refractive power, the third lens element with refractive power, the fourth lens element with refractive power, the fifth lens element with refractive power; the sixth lens element made of plastic, the sixth lens with refractive power having a concave image-side surface with both being aspheric, and the image-side surface having at least one inflection point.

Abstract: An optical imaging system for pickup, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power having a convex object-side surface, the second lens element with refractive power, the third lens element with refractive power, the fourth lens element with refractive power, the fifth lens element with refractive power; the sixth lens element made of plastic, the sixth lens with refractive power having a concave image-side surface with both being aspheric, and the image-side surface having at least one inflection point.

Abstract: A holder for maintaining a mobile device having a screen in a fixed position when used by a user to capture images. The holder includes an elongated hollow cover section for being held by a hand of the user, the cover section comprising a viewer end and an opposed device end, the viewer end being configured for being held near an eye of the user so as to permit the user to view the screen of the mobile device therethrough. A mobile device support section supports the mobile device, the support section being mounted adjacent to the device end of the cover section, the support section being positioned, shaped, and sized for maintaining the mobile device in the fixed position such that the user can stably view the screen of the mobile device through the view end of the cover section, thereby allowing the user to capture images.

Abstract: An optical magnifier suitable for viewing microdisplay panels and other optical fields and providing a wide field of view with minimal aberrations across the field over a large pupil with long eye-relief. The magnifier comprises six lens elements formed without the use of expensive very high dispersion glass. The lens surfaces are spherical and/or flat thereby simplifying lens fabrication. A similar magnifier with fewer lens elements configured to view a concave image surface is also disclosed.

Abstract: A six-piece wide-angle lens module includes, from an object side to an image side, a first lens group, an aperture and a second lens group. The first lens group consists of a negative first lens, a negative second lens and a positive third lens, each lens having an object side surface facing the object side and an image side surface facing the image side, the first lens is a meniscus lens having a convex object side surface, the second lens has a concave image side surface, the third lens has a convex object side surface. The second lens group consists of a positive fourth lens, a negative fifth lens and a positive sixth lens, the fourth lens is a biconvex lens, the fifth lens has a concave image side surface, the sixth lens has a convex object side surface, the second lens group has a positive focal length.

Abstract: A variable power relay optical system is arranged closer to an image side than an imaging optical system. The variable power relay optical system includes, in order from a side of the imaging optical system, a front group that is arranged between the imaging optical system and a position of an image of a sample that is formed by the imaging optical system, the front group forming an intermediate image formed by reducing the image, and a rear group that forms a relay image formed by magnifying the intermediate image, the rear group including a plurality of lens groups that each move along an optical axis so as to change magnification of the rear group without changing a distance from the front group to the relay image.

Abstract: An eyepiece optical system is achieved that is suitable for an object image displayed on a miniaturized image display device and can magnify the object image to a high magnification ratio, the distance to the eyepoint is long while achieving a wide apparent visual angle at a short focal length, various aberrations can be favorably corrected while achieving a superior optical quality, and the pupil diameter can be enlarged. The eyepiece optical system includes a first lens element having a meniscus shape with a concave surface on the object side, a positive second lens element, a negative third lens element, and a positive fourth lens element, in that order from the object side toward the eye side.

Abstract: An integrated apertured micromirror is provided in which the micromirror is monolithically integrated with a micro-optical bench fabricated on a substrate using a lithographic and deep etching technique. The micromirror has an aperture therein and is oriented such that the micromirror is optically coupled to receive an incident beam having an optical axis in a plane of the substrate and to at least partially transmit the incident beam therethrough via the aperture.

Abstract: A compact imaging lens suitable for a high pixel density image pickup device which properly corrects chromatic aberration and other types of aberrations and ensures high image quality, low f-number, and low cost. A first lens, second lens, third lens, fourth lens, and fifth lens are arranged in order from the object side and both sides of all the lenses are aspheric surfaces and a diffractive optical surface with a chromatic aberration correction function is formed on one of the surfaces from the object side surface of the first lens to the object side surface of the second lens and on one of the surfaces from the object side surface of the third lens to the object side surface of the fifth lens. All the lenses are made of a plastic material.

Abstract: Opto-mechanical systems, methods of assembly, and devices utilizing opto-mechanical systems are disclosed. One example opto-mechanical system includes an optics housing; an optics display; and a display module. The optics display can extend away from a first open end of the optics housing to display images to a user. A display module is positioned adjacent a second open end of the optics housing. The display module may be constructed and arranged to project images onto the optics display. The display module further comprises a display module housing, as well as module displays that are positioned within the display module housing. The optics housing may be constructed and arranged to join the display module to the optics housing. The display module can be positioned within the optics housing and is spaced a predetermined distance away from the first surface of the optics display.

Abstract: A wearable display device is disclosed. In one aspect, the wearable display device includes an image source configured to output an image and an optical housing at least a portion of which is configured to be placed in front of a user's eye. The optical housing includes a waveguide configured to receive the light from the image source and guide the output image, at least one inclined surface configured to reflect the guided image to the user's eye, and a first sensor formed on the waveguide and configured to sense contact between an object and the waveguide. The waveguide and the inclined surface are integrally formed.

Abstract: According to an embodiment, a solid-state imaging device includes: an imaging device including an imaging area including a plurality of pixel blocks each of which includes a plurality of pixels; an image formation lens forming an image on an image formation plane by using light from a subject; an aperture unit including a plurality of aperture elements provided to associate with the plurality of pixel blocks, each of the aperture elements having an aperture portion and a shield portion, light from the image formation lens being filtered by each aperture element; a microlens array including a plurality of microlenses provided to associate with the plurality of aperture elements, each of the microlenses forming an image in the imaging area by using light filtered by an associated aperture element; and a signal processing circuit configured to process a signal of an image taken in the imaging area and estimates a distance to the subject.

Abstract: An eyepiece for a head mounted display (“HMD”) includes a doublet lens that includes a first optical element, a second optical element, and a reflecting element. The first optical element has an entry surface to receive the display light from a micro display and a first coupling surface disposed opposite the entry surface. The first optical element has a first index of refraction and a first Abbe number. The second optical element has an exit surface and a second coupling surface paired to the first coupling surface of the first optical element. The second optical element has approximately the first index of refraction and a second Abbe number different from the first Abbe number. The doublet lens and the reflecting element are configured to direct the display light through the entry surface, the first coupling surface, the second coupling surface, off the reflecting element, and through the exit surface.

Abstract: In order from the object side, a first lens having positive power with a convex observation-side surface, a second lens having negative power and a meniscus shape with a concave object-side surface, and a third lens having positive power with an observation-side surface having a smaller radius of curvature than that of an object-side surface are provided. The first, second and third lenses are single lenses. The conditional expressions (1): 0.9<f1/f3<5.0, (2): 10.0<TL<17.0 and (3): 15.0<f<25.0 are satisfied at the same time, where f1 is a focal length of the first lens, f3 is a focal length of the third lens, f is a focal length of the entire system, and TL is a distance along an optical axis from an object-side lens surface of the first lens to the observation-side lens surface of the third lens.

Abstract: An eyepiece includes a focusing apparatus for positioning the area perceived as in focus by the relaxed human eye and for correcting axial ametropia of an eye of a user of the eyepiece and a correction apparatus for adjustable correction of an astigmatism of an eye of a user of the eyepiece.

Abstract: Providing an eyepiece optical system 10 comprising: an eyepiece system 11; and an optical member 12 having a meniscus shape disposed to an eye side of the eyepiece system 11, the following conditional expression being satisfied: 2.00<|R|/fe<22.00 where fe denotes a focal length of the eyepiece system 11 when a diopter of the eyepiece system 11 is 0 (m?1), and R denotes a radius of curvature of the surface having the meniscus shape, and the optical member 12 with a meniscus shape having a concave surface facing the eye side.

Abstract: Provided are an ocular zoom optical system which has a wide apparent field of view even on a low power side and in which aberrations are favorably corrected while a sufficient eye relief is secured over the entire zoom range, and an optical instrument including the ocular zoom optical system. The ocular zoom optical system 3 includes, in order from the object side: a first lens group G1 having a negative refractive power; a second lens group G2 having a positive refractive power; and a third lens group G3 having a positive refractive power and at least one aspheric surface. An intermediate image I? is formed between the first lens group G1 and the second lens group G2. During zooming, the third lens group G3 is fixed on the optical axis, and the first lens group G1 and the second lens group G2 are moved in directions opposite to each other with the intermediate image I? interposed therebetween.

Abstract: The invention provides an ocular lens well corrected for aberrations through a sufficiently large angle of view and having a sufficient eye relief while ensuring avoidance of increasing the overall length and suppression of an increase in lens diameter, and provides an optical device including this ocular lens. An ocular lens 3 includes, in order from an object side, a first lens group G1 including a first lens component G1A in meniscus form having a convex surface facing the object side, a second lens group G2 including a lens component L21 having a convex surface facing a viewing eye side, and a third lens group G3 having a positive refractive power. An object-side focal plane I of the third lens group G3 is positioned between the second lens group G2 and the third lens group G3.

Abstract: An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. An object-side surface of the second lens has a shape having negative refractive power at a center, and including a part having positive refractive power in an area between the center and an effective diameter edge, and having negative refractive power at the effective diameter edge (concave shape facing the object side), and the refractive power at the effective diameter edge being weaker than the refractive power at the center. Further, an object-side surface of the third lens is convex toward the object side. Further, a predetermined conditional formula about a combined focal length of the first lens, the second lens and the third lens is satisfied.

Abstract: An imaging lens assembly comprises a fixing diaphragm and an optical set including five lenses. An arranging order from an object side to an image side is: a first lens; the fixing diaphragm; a second lens; a third lens; a fourth lens; and a fifth lens. At least one surface of the five lenses is aspheric. By the concatenation between the lenses and the adapted curvature radius, thickness/interval, refractivity, and Abbe numbers, the assembly attains a big diaphragm with wide-angle, a shorter height, and a better optical aberration.

Abstract: An eyepiece lens (EL) used for a viewfinder optical system (VF) for viewing, using the eyepiece lens (EL), an image formed by an objective lens (OL), an image displayed by a display member, or an object, wherein an antireflection coating (101) is disposed on at least one surface among the optical surfaces constituting the eyepiece lens (EL), and the antireflection coating (101) includes at least one layer (101g) formed by a wet process.

Abstract: A coupling device for detachably connecting an eyepiece of an endoscope optical system with a camera lens includes a receptacle for the eyepiece, attachment means for securing the eyepiece in the receptacle, and a manually activated handle arranged on the outside for releasing the attachment. The attachment means are controlled by the eyepiece so as to automatically attach the eyepiece in the receptacle while introducing the eyepiece into the receptacle.

Abstract: Provided is automatic shading goggles in that a welding helmet is manufactured in a goggle shape, so that the size thereof is compact and the weight thereof is light and a shading degree of a LCD lens can be selectively adjusted in any one mode of a welding mode for shielding a harmful light generated during welding operation and a security mode for shielding a visible ray, so that it can reduce a burden of the weight applied to a worker, block a strong light during welding operation, and easily distinguish the surrounding objects, when the welding operation is not performed.

Abstract: Removable and/or detachable viewing devices for optical and/or other measuring equipment and methods of making and using the same are disclosed. The viewing device includes a housing, an eyepiece, and an attachment mechanism configured to releasably or detachably connect the viewing device to an optical measuring instrument. An optical measuring system includes an optical measuring instrument and the viewing device detachably connectable to the optical measuring instrument. The optical measuring kit may include one or more caps or plugs detachably connectable to the opening of the optical measuring instrument and/or the interface end of the viewing device.

Abstract: The invention relates to an adapter sleeve for fastening an accessory, such as a fixture for an optical recording or measuring device, to an eyepiece portion of an observation telescope. The adapter sleeve has a basic body that centers the adapter sleeve on the eyepiece portion, an attachment portion that fastens the accessory to the adapter sleeve, and a fixing device that locks the adapter sleeve at the eyepiece portion. Likewise, the present invention relates to different fixtures for attaching an optical recording or measuring device to the eyepiece portion of an observation telescope. This provides both an adapter sleeve and a fixture that meets increased positioning accuracy requirements, while being adjustable to fit the needs of different observation telescopes and optical recording or measuring devices.

Abstract: A plastic lens includes a first surface and second surface that each have an optical function; and a peripheral surface formed at a periphery of the first surface and the second surface; and has a central portion of a thickness that is thinner than that of a peripheral portion of the plastic lens. The second surface includes an optically functional concave aspect, a recess formed along an outer perimeter of the concave aspect, a first protruding portion formed at a boundary of the concave aspect and the recess, a second protruding portion formed at a boundary of the recess and the peripheral surface, and a gate portion formed on the peripheral surface, at a position where a resin injection outlet is arranged during formation of the plastic lens.

Abstract: An optical scope has at least one optical element which is used to image an object. An optical element is, for example, understood to mean a lens unit, a prism, or a prism system composed of multiple prisms. A lens unit is, for example, understood to mean one single lens or a unit which is composed of at least two lenses. It is now provided to make the optical element of glass, namely of at least one of the following glasses (glass types): N-BK7HT, N-SK2HT, F2HT, N-LASF45HT, SF6HT, N-SF6HTultra, N-SF6HT, SF57HTultra, N-SF57HTultra, N-SF57HT, as well as N-LASF9HT. The above-named glasses are glasses of the SCHOTT corporation.

Abstract: The present invention generally relates to contact lenses. Specifically, this invention relates to contact lenses that change color based on one or more stimuli. The present application provides for a color changing contact lens that can change its color based on one or more stimuli. The color changing contact lens is constructed of an inner layer, an outer layer and a supply of liquid crystal.

Abstract: The eyepiece optical system of the invention is characterized by comprising, in order from the display plane side on which images being viewed are formed toward the exit side, a first lens component of positive refracting power, a reflecting member having only one reflective surface, a second lens component of negative refracting power and a third lens component of positive refracting power. The lens component here means a lens block that, in an optical path involved, contacts air at only two surfaces: the display-plane-side refractive surface and the exit-side refractive surface.

Abstract: A finder apparatus superimposes, on an image formed by an observation optical system of a reverse-Galilean finder including an objective lens group and an eyepiece lens group, display on a display member arranged outside an optical path of the observation optical system by using an optical path combination member arranged between the objective lens group and the eyepiece lens group, thereby making a user observe the image on which the display is superimposed. The finder apparatus includes a target lens group that guides light from the display member, and which is provided in an optical path from the display member to the eyepiece lens group. Further, the focal length of the eyepiece lens group, and a combined focal length from the target lens group through the eyepiece lens group satisfy predetermined formulas.

Abstract: An ocular lens used in an optical apparatus, such as a telescope optical system, includes the following lens groups sequentially arranged from the object side: a first lens group G1 having negative refracting power; a second lens group G2 including a lens component having a convex surface facing the viewer's eye side; and a third lens group G3 having positive refracting power. An object-side focal plane of the third lens group G3 is located between the second lens group G2 and the third lens group G3. The first lens group G1 includes the following lens components sequentially arranged from the object side: a first lens component G1A having a convex surface facing the object side, having negative refracting power, and having a meniscus shape; and a second lens component G1B having negative refracting power.

Abstract: Provided is a head-mounted display element, including: a first casing (11) which incorporates therein at least a display element (21), and has a light projection window (11a) for projecting image light from the display element (21); a second casing (12) which incorporates therein an eyepiece optical system (31) with a refractive power, and has a light receiving window (12a) for receiving incident image light projected through the light projection window (11a) and an eyepiece window (12b) for emitting the image light that has passed through the eyepiece optical system (31); and a coupling portion (13) for coupling the second casing (12) to the first casing (11) so as to make adjustable a length of an optical path between the light projection window (11a) and the light receiving window (12a).

Abstract: A lens arrangement suitable for looking through small holes is provided in which no conventional integral physical lens stop is required. The lens arrangement is relatively insensitive to its position, meaning that it may be set back behind the hole reducing the risk of detection and allowing rapid installation.

Abstract: A fixed-focus lens module includes an outer lens barrel, an inner lens, a first lens, and a second lens group. The outer lens barrel includes a first open end, a first cavity, and a second open end arranged in the order from the object side to the image side of the outer lens barrel. The inner lens barrel is received in the outer lens barrel adjacent to the first open end. The first lens is received in the inner lens barrel. The second lens group is received in the outer lens barrel adjacent to the second open end. An gap is defined between an outer wall of the inner lens barrel and an inner wall of the outer lens barrel at the first open end, and the center axis of the inner lens barrel is adjustable relative to the outer lens barrel for adjusting the alignment between the first lens and the second lens group.

Abstract: An aimer is provided. The aimer includes an object lens unit, a body and an eyepiece unit. The body is connected to the object lens unit. The eyepiece unit is connected to the body. The eyepiece unit includes a first pipe, a second pipe, a lens unit and a graduated pattern. The first pipe is connected to the body. The second pipe is connected to the first pipe, wherein the second pipe is rotated to move between a first position and a second position relative to the first pipe. The lens unit is disposed in the second pipe. The graduated pattern is formed on the second pipe.

Abstract: In an example embodiment, lightwave device for use in a dispersion compensator, includes a light coupler configured to direct light toward a grating structure. The light coupler includes a first strip including a first material and a second strip attached to the first strip. The second strip includes a second material, and the second material has an expansion coefficient different than the first material. The first and second strips form a deformable reflector. A thermoelectric unit is coupled to the light coupler and is configured to adjust a shape of the deformable reflector based on a temperature of the thermoelectric unit. A support member is connected to the light coupler and is configured to position the deformable reflector so to receive light for transmission to the grating structure. Another embodiment provides a dispersion compensator using the lightwave device.

Abstract: A first embodiment is a lens system having a plurality of refractive and reflective spherical elements that work as a magnifier to produce a distortion free, less than 1%, image with optical correction over a wide field of view. The system has at least one concave reflecting surface, and at least three convex refracting surfaces with the sign of the radius of one of the convex refracting surfaces being opposite of the sign of the radius of remaining two convex refracting surfaces. A second embodiment is a lens having a concave reflecting element which is on a substrate that is a negative lens by transmission with an index of refraction between 1.6<nd>2.0 and a dispersion 49<?d>15. This is used in combination with at least 3 positive refracting surfaces with less dispersive power than the negative element and with the sign of the radius of one of the positive elements being opposite from the sign of the radius of the remaining positive elements.

Abstract: Provided is a head-mounted display element, including: a first casing (11) which incorporates therein at least a display element (21), and has a light projection window (11a) for projecting image light from the display element (21); a second casing (12) which incorporates therein an eyepiece optical system (31) with a refractive power, and has a light receiving window (12a) for receiving incident image light projected through the light projection window (11a) and an eyepiece window (12b) for emitting the image light that has passed through the eyepiece optical system (31); and a coupling portion (13) for coupling the second casing (12) to the first casing (11) so as to make adjustable a length of an optical path between the light projection window (11a) and the light receiving window (12a).

Abstract: A finder apparatus superimposes, on an image formed by an observation optical system of a reverse-Galilean finder including an objective lens group and an eyepiece lens group, display on a display member arranged outside an optical path of the observation optical system by using an optical path combination member arranged between the objective lens group and the eyepiece lens group, thereby making a user observe the image on which the display is superimposed. The finder apparatus includes a target lens group that guides light from the display member, and which is provided in an optical path from the display member to the eyepiece lens group. Further, the focal length of the eyepiece lens group, and a combined focal length from the target lens group through the eyepiece lens group satisfy predetermined formulas.