Abstract: A lens guide mechanism includes a lens frame which supports a photographing lens group, the lens frame including a plurality of guide holes extending in a direction parallel with an optical axis; a support barrel in which the lens frame is provided; a gear holding member which is provided at a front end of the support barrel; a gear train which is held between the support barrel and the gear holding member, the gear train constituting a drive mechanism for the lens frame; and a plurality of linear movement guide rods provided in the gear holding member, which extend through the guide holes of the lens frame and support the lens frame to move linearly in the optical axis direction relative to the support barrel.

Abstract: The present invention provides an improved switchable interleaved channel separator device. The switchable interleaved channel separator device utilizes an adjustable reflective non-linear interferometer, which performs both switching and wavelength polarization sorting functions, so that overall complexity of the device is reduced. Further, because the adjustable non-linear interferometer is a reflection element, signal light paths are folded back upon one another so as to realize an overall reduction in the device's size, as well as the capability of performing optical couplings predominantly or wholly at a single side or at adjacent sides of the device.

Abstract: An optical pickup actuator includes a bobbin. At least one focus coil and at least one track coil are arranged at both sides of the bobbin to secure the remaining sides of the bobbin. The optical pickup actuator can drive an optical pickup in a focus direction, a track direction, and a tilt direction. The focus coil is also used as the tilt coil. An optical pickup actuator is driven by arranging a bobbin on a base of the optical pickup actuator so as to be moved by support members, installing at least one focus and tilt coil to drive the bobbin in focus and tilt directions and at least one track coil to drive the bobbin in a track direction at opposite side surfaces of the bobbin, arranging magnets to face corresponding sides of the opposite side surfaces of the bobbin, and dividing the focus and tilt coils into at least two sets of coils and applying an input signal to each of the sets.

Abstract: A micro-optical switch including a flexureless magnetic micromirror hinged centrally over a pin, cone or the like. The pin, cone or the like allows the micromirror to rapidly switch or tilt into a plurality of predefined positions as accurately controlled by an microelectromagnetic assembly. A liquid surrounds the pin or cone, connects the bottom of the surface of the mirror with the substrate supporting the pin or cone, and provides a capillary force holding the mirror onto the pin or cone. The liquid low vapor pressure also dissipates heat generated by the fiberoptic beam reflecting off the top surface of the micromirror.

Abstract: A telemetry system is described including a remote unit having a remote input unit coupled to a remote transmit unit. The remote input unit receives one or more sensor output signals and produces a sensor status signal dependent upon the sensor output signals. The sensor status signal alternates between a first state and a second state, wherein an amount of time the sensor status signal remains in the first state is dependent upon one of the sensor output signals. An amount of time the sensor status signal remains in the second state may depend upon sensor output signals from other sensors. The remote transmit unit receives the sensor status signal and transmits a transmit signal each time the sensor status signal transitions between the first and second states. The transmit signal may be a frequency modulated radio frequency carrier signal including a status portion having direction information indicating a direction of the transition between the first and second states.

Abstract: A lens unit (U15) includes a housing (45), an upper and a lower lens arrays (A1′, A2′), and a first and a second prisms (4A, 4B). Each of the lens arrays includes a plurality of lenses, a light-shielding member (4), and a plurality of positioning projections, all of which are integral with each other. Downwardly traveling light which enters the housing (45) through a first slit (45c) formed at an upper portion of the housing (45) is directed upward by the first prism (4A) to pass through the two lens arrays (A1′, A2′). The light is then directed downward by the second prism (4B) to exit the housing through a second slit (45d) formed at a lower portion of the housing (45).

Abstract: Disclosed is a single-vision astigmatic-power spectacle lens having cylindrical power to correct astigmatism of an eye. The spectacle lens has front and back surfaces, one of which is a rotationally-asymmetrical aspherical surface. The rotationally-asymmetrical aspherical surface has a first rotationally-asymmetrical component to add said cylindrical power for correcting astigmatism of an eye and a second rotationally-asymmetrical component to correct the aberrations in the directions between first and second principal meridians caused by adding the cylindrical power. That is, when the sag z(h, &thgr;) is expressed as a function of the angle &thgr; while fixing the distance h from the center, a curve of the function has a larger gradient in close to the local maximum and a smaller gradient in close to the local minimum as compared with the curve interpolated by the sine curve.

Abstract: The invention relates to a magnifying glass which is secured in a frame (20). Said magnifying glass consists of a combination of lenses (10) comprising a principal lens (11) with a secondary lens (12) forming an integral unit therewith. The secondary lens (12) is integrated into the principal lens in an eccentric position and has a higher magnification in relation to the principal lens (11). To obtain a magnifying glass which is convenient to use under all respective working conditions, the inventive lens combination (10) is rotatably mounted (18, 18′) in the frame (20).

Abstract: An electro absorption modulator in which the photocurrent generated by the absorption of light is monitored and the bias voltage applied to the electro absorption modulator is varied in order to vary the photocurrent and thence the extinction ratio of the electro absorption modulator.

Abstract: There is provided an optical element which can be handled with ease and mounted on a supporting means for supporting it with high precision and efficiency in the course of manufacturing it, and also there is provided a method for manufacturing such an optical element as described above. A lens element 100 is an optical element which is mounted on a supporting substrate provided with a groove for mounting the lens element. The lens element 100 includes a handling portion 120, a side wall 162a which are brought into contact with the groove for mounting use, and a lens portion 180a. The thickness of the lens portion 180a in the optical axis direction thereof is able to be set arbitrarily.

Abstract: A temperature sensing system (30) that providing at least one detect signal related to temperature in an integrated circuit is presented. This system uses one thermal sensing circuit (40) to detect two or more temperature thresholds (t2, t3) and differentiates the temperature thresholds using time multiplexed logic control. The system (80) capable of detecting more than two temperatures includes the thermal sensing circuit (90) and a decode circuit (92) with at least one detect latch (100). Optionally, the system may include a hysteresis circuit (60). The thermal sensing circuit (40), connected to the integrated circuit, generates a detect signal (D4) in response to the a temperature selection signal (T1). This flexible on-board temperature monitoring solution reduces the cost of thermal feedback sensing by reducing die area and improves the correlation of detected temperatures. In addition, this solution reduces the possibility of mismatch and tracking errors between two or more sense elements.

Abstract: A pair of eyeglasses comprises a frame comprising two first lens, two bifurcated first end pieces each including a channel, and a cavity in a bridge; two replaceable lens frames each comprising a second lens (e.g., tinted lenses), a second end piece at one end, the second end piece being threadedly fastened in the channel, a rear tab at the other end releasbly fastened in the cavity, and at least one ridge on the tab, the ridge being urged against inside of the cavity; and two temple pieces each having a forward connecting end pieces pivotably, threadedly fastened in the channel.

Abstract: The optical device with a function of homogenizing and color separation according to the present invention has a shape of rod, makes a distribution of light uniform by totally u reflecting the incidence light at a boundary inside the device repeatedly, and separates the incidence light into light of different colors based on a wavelength band, the light of different colors outputted through different optical paths which are not overlaid one another.

Abstract: A pair of eyeglasses includes two frames each having a cutout defined in an outer periphery of the frame, two temples each pivotally connected to a corresponding one of the two frames and by a boss sandwiched between each of the temple and the corresponding frame, a bridge securely bridging the two frames together by an extension sandwiched between the bridge and a corresponding one of the two frames, two lenses each connected to a corresponding one of the two frames and having two notches oppositely defined in a side of the lens to respectively correspond to the extension and the boss and an indentation defined adjacent to one of the two notches to align with the cutout of the frame, and a positioning arm pivotally connected to the two frames to selectively combine the frames and the lenses.

Abstract: A pivoting optics mount includes an optical element set on an optics holder that has a pivot element. Three actuators included in the pivoting optics mount maintain a mating of the pivot element with a complementary pivot element. Adjusting the lateral displacement of a tip of one or more of the actuators provides angular adjustment of the optical element. The pivoting optics mount includes a frame that fixes the position of the complementary pivot element relative to the actuators.

Abstract: A three-way eyeglass retainer having a retaining cord secured to a retaining member is disclosed. The retaining member is a hollow, tubular member with a cylindrical shape. A channel extends through the member and is defined by a wall fabricated from an elastic material. The channel communicates with the environment of the retaining member by an opening one or more of the ends of the retaining member. The channel further communicates with the exterior through a tunnel that is positioned transverse to the longitudinal axis of the retaining member. The tunnel communicates with the exterior through ports on either end of the tunnel that extend through the wall. A temple piece of a pair of eyeglasses may be inserted into the openings or the ports in the retaining member in various orientations to secure the eyeglasses to the person of a user.

Abstract: A method for assembling eyeglasses is disclosed. The method consists of selecting a pair of lenses from an inventory of circular lenses according to a patient's prescription. The circular lenses have the same geometric and optical center so they do not require ground (grinded) decentration. The round shape also allows the lenses to be rooted geometric and optical center, so they do not within the eyewires when the clasps are open. The lenses are mounted into the annular eyewires of the eyeglasses, rotated so that the cylindrical axis is appropriately aligned, and secured in place so that the lenses may not rotate. The correct pupillary distance is achieved by varying the width of the nosepiece. Bifocal lenses may be selected based on the patient's bifocal prescription and positioned on the existing lens according to the bifocal markings on the eyewires.

Abstract: An objective lens includes a first lens unit with positive refracting power and a second lens unit on the specimen side of the first lens unit. The first lens unit has at least one lens and the second lens unit has at least one optical element, satisfying the following conditions: v dLD > v dHD ⁢ - 0.56 ≦ φ II ⁢ / φ T ≦ 0.56 where &ngr;dLD is the Abbe's number of glass material of the lens, &ngr;dHD is the Abbe's number of glass material of the optical element, &phgr;II{circle around (1)} is the refracting power of a first surface of the second lens unit, and &phgr;T is the refracting power of the entire system of the objective lens.

Abstract: A lens array of an erecting mode with unity amplification which scarcely generates a stray light and a flare light, is provided. In the lens array of the erecting mode with unity amplification constituted by superposing a plurality of lens plates in which convex lenses are arrayed and formed on both sides, a lens pitch P of the array direction of the convex lenses is not less than two times the height of an inverted image formed inside the lens array of the erecting mode with unity amplification, and an aperture diaphragm is provided on individual lens elements in a position in which the inverted image is formed so that a light does not pass through the outside of the region of a circle having the height of the inverted image as a radius.

Abstract: An injection molded lens-barrel assembly and method for fabricating lens-barrel and mount assemblies provides a low cost precision optical front end for digital cameras. A barrel is injection-molded around a lens, securing the lens in place. Alternatively, the lens-barrel assembly may be injection molded in one molding stage having two steps. A transparent material is injected to form a lens and an opaque compatible material is injected to form the barrel, yielding a single part that may be mounted to a digital camera. Multiple lens assemblies may be produced by incorporating an alignment feature on each lens to hold the lenses in an external mold fixture. One or more supporting structures are then molded around the multiple lenses, securing them in mechanical alignment.