Abstract: An adjustable rear view mirror extension apparatus that attaches to a standard existing rear view mirror found in most automobiles and other motor vehicles. The apparatus has a mirror, a mirror frame to secure the mirror, a plurality of lateral supports to position the mirror on the frame, and a flexible mirror retainer to releasingly retain the mirror in the mirror frame. There is a mirror frame support that allows the mirror to rotate on a vertical axis and a rotating device to allow the mirror to rotate on a horizontal axis. The rotating device has a housing comprising two sections. The two sections are adjustably connected to adjust the tension of the insert spring which controls the ease of movement of the mirror around its horizontal axis. The rotating device has a first and second surface with a plurality of radial bosses and grooves, respectively, included are an insert, spring and insert gripping device to restrict rotation.

Abstract: A holographic memory read-out system in which multiple pages of information are angularly multiplexed onto a recording medium, either planar or volume. For read-out of the hologram, a selected one of a plurality of surface-emitting semiconductor lasers arranged in a two-dimensional array is activated. The coherent output beam is passed through a collimating lens which produces a coherent plane-wave having a direction dependent upon which laser in the array produced the output beam. The plane-wave uniformly irradiates the recording medium to thereby diffract a selected image at a set angle to an imaging apparatus.

Abstract: A solar aircraft detector is provided and consists of a cylindrical housing secured to top surface of a fuselage of an aircraft. A plurality of reflectors are carried on the cylindrical housing for sending back light at various angles therefrom. The reflected light causes the aircraft to be visually identified and located by other aircraft pilots in the vicinity.

Abstract: A head-up vehicle instrument display system that includes an imaging illumination source located in a recess in the vehicle dashboard or on the dashboard, and a combiner/retarder element embedded in a vehicle windshield. The combiner/retarder element includes a reflection hologram and one or more half-wave retarders, and optionally the inside surface of the vehicle windshield.

Abstract: A finder device capable of forming an erecting non-reverse image to be observed at either of the waist level and the eye level, wherein when used as the waist-level finder, the photographer, while taking his eye at a good distance from the finder, can observe the image of an object to be photographed.

Abstract: An automated visual testing system is disclosed which presents an alternating steady state visual stimulus to a patient through an optical system that modifies the stimulus image. As the image changes, the patient produces evoked potentials that change. The evoked potentials are detected by a product detector which produces the amplitude of the evoked potentials. The amplitude is monitored through an analog to digital converter by a supervisor computer. The supervisor computer produces patient response curves from which it diagnoses visual system malfunction and/or prescribes correction. A control processor controls a stimulus generator to produce the image and an optical system, that includes polarizers, an astigmatism test slit or a cylindrical lens, a zoom lens system and a variable focal length test lens, transmits the image to the patient. The steady state visual potential stimulus generator is a device by which a rapidly complementing or flashing pattern can be presented to the patient.

Abstract: An adjustable mirror assembly includes a rigid base plate (35) and a mirror (16) which is integrally bonded thereto via an elastic layer (50), and adjustment screws (52, 54) that are threaded in the base place and press on the rearside of the mirror, thereby stretching the elastic layer (50).

Abstract: A light beam scanning apparatus includes a rotatable holographic disk having a hologram which is constructed by an interference of a reference wave and an objective wave, which is a coma wave, the coma wave having a focal length which decreases toward the outer periphery from the inner periphery of the holographic disk in a radial direction. The focal length has a different direction perpendicular to the radial direction, so that when the hologram of the holographic disk which rotates is reconstructed by a reconstruction wave, the scanning is effected by the beams diffracted by the hologram.

Abstract: The present invention discloses a reconfigurable optical interconnect apptus that redirects an optical beam through embedded holographic elements of a substrate-mode hologram to connecting information processors or to photonic switching devices. The apparatus includes a substrate-mode hologram, including a polarization insensitive input hologram member, one or more embedded polarization sensitive hologram members that couple transmitted diffracted or non-diffracted light to respective optical receivers. The optical receivers further couple the light out of the substrate-mode hologram or to cascaded similar apparatus. The method includes processing an incident beam of polarized light through a controlled polarization modulator, through an optical information encoder, such as a spatial light modulator, then further processing the polarized light through the substrate-mode hologram. The apparatus has advantages of being compact and expandable into larger systems.

Abstract: A chopping secondary mirror system is provided, in which magnetic circuits of a driving motor for causing a secondary mirror to chop about its rotation axis are mounted to the secondary mirror via a driving motor mounting so that the magnetic circuits function as a balancing mass to position the center of gravity of a whole chopping section on said rotation axis. The driving motor mounting is secured to the secondary mirror at the center of the secondary mirror. Leaf springs are used as vibration damping springs of a reaction force compensator.

Abstract: A polychromatic optical correlator system, comprising one or more devices to generate simultaneously a plurality of signal beams at a plurality of wavelengths, a beam recombiner to direct the signal beams along an axis to form a multicomponent, multiwavelength beam comprised of those signal beams, at least one view exposed to the signal beams to spatially modulate each of the signal beams, and a matched filter plate having a plurality of matched filters stored therein. A multiple beam generating holographic lens is located in the path of the multicomponent, multiwavelength beam to deflect each of the component signal beams thereof onto the matched filter plate, with each of the signal beams being focused on a respective one of the matched filters of the matched filter plate.

Abstract: An X-ray mirror apparatus includes a substantially cylindrical mirror body and a pair of light shielding members provided at both open ends of the mirror body. The inner surface of the mirror body constitutes a reflecting mirror surface having a surface of revolution. Each light shielding member has a light shielding plate arranged at the opened end of the mirror body to block it, and an annular slit allowing passage of X-rays entering onto and reflected on the reflecting mirror surface. A cylindrical fitting member is fixed to the light shielding plate to be coaxial with the slit. The fitting member is fitted on the opened end portion of the mirror body, thereby positioning the light shielding member so that the slit is located coaxial with the axis of the reflecting mirror surface.

Abstract: A mirror assembly for mounting onto an exterior front surface of a vehicle, preferably one on each opposed front fender of the vehicle. The mirror assembly includes a mirror having a reflective surface, the surface having a generally convex geometry, and being in the shape of an ellipsoid. The reflective surface provides the driver with a field of view along the vertical axis is in the range of 180.degree. to 220.degree.. The top portion of the reflective surface has a first plane of truncation which passes through the approximate center of the reflective surface. The rear portion of the reflective surface has a second plane of truncation which removes at least the rear half of the surface. This second plane is essentially normal to the first plane of truncation. The reflective surface is mounted with a slight upward tilt.

Abstract: A rear-view mirror pivoting apparatus according to the present invention reflects a dead angle portion generated in the direction in which a vehicle makes a turn.The mirror pivoting apparatus includes a mounting arm mounted on a car body a, a mirror box supported on the arm, a mirror pivotally supported on an open side of the mirror box by hinges, a crank arm whose one end is supported on the mirror, the other end thereof being pivotally supported by a crank piece, an electric motor with a reduction gear which rotates the crank piece, electrically insulated wires through which current is supplied from a power a source to said motor through a winker switch provided on the car body, and a mirror returning switch for short-circuiting the winker switch only when the mirror is pivoted.

Abstract: A rearview mirror device for a vehicle includes a mirror assembly provided in a housing, an arm holding the mirror assembly and mounted movably in the housing, and a moving and controlling mechanism which has a motor mounted in the housing and a screw rod connected to the motor and the movable arm. The arm can be moved into and out of the housing by the motor through the screw rod. The device can be mounted on the rear side of the vehicle so that the driver can be provided with a complete view of the rear of the vehicle and the vehicle can be backed up safely and easily.

Abstract: A deformable mirror construction is disclosed in which a difference in pressure between the front reflecting surface of the deformable mirror and an enclosed chamber behind the mirror's reflecting surface is used to restore the reflecting surface to its undeformed condition after its shape has been deformed by the selective operation of one or more electrodistortive actuators. A pump is associated with the chamber to produce at least a partial vacuum in the enclosed chamber. The use of a pressure differential to influence the shape of the mirror's reflecting surface avoids the need to have the actuators fastened to the reflecting surface, thereby permitting a construction which provides for the easy replacement of actuators. A preferred embodiment of the deformable mirror includes an apparatus for circulating a coolant through the mirror's faceplate to remove heat therefrom.

Abstract: An adjustable auxiliary planar rear view mirror for use in combination with a primary outside rear view mirror to increase the driver's field of vision comprising an outer mirror mounting member including an inclined retainer and an intermediate coupling member including an inclined support to operatively support a planar reflective element therebetween at an angle of substantially ten degrees relative to the central axis or the adjustable auxiliary planar rear view mirror mounting member, and an inner attachment member to rotatably mount the planar reflective element on the primary outside rear view mirror.

Abstract: A computer monitor viewing device is provided which locates a monitor image at a comfortable viewing location and which is desirably suitable for use by most computer users and, in particular, by bifocal users. The device includes a first mirror positioned to reflect an image from a computer monitor screen and a second mirror which is positioned to reflect the image reflected by the first mirror toward the eyes of a viewer. Supports are also provided for positioning the first and second mirrors. Desirably, where the device is used in connection with a keyboard, the second mirror is positioned closer to the keyboard than the computer monitor screen, thereby allowing users, including bifocal wearers, to comfortably view the screen and the keyboard simultaneously. The device may also incorporate means to shield the user from radiation from the computer monitor.

Abstract: An optical element (10) is mounted and aligned with minimum strain and distortion within a support (12) to which at least three mounts (14) are attached and spaced 120.degree. about the periphery of the optical element. Each mount comprises a spherical disc (16) spherically contacting a spherical surface (30) on a seat (20) which is linearly moveable within a housing (18). Each disc abuts and supports the optical element. Any loading exerted on the support causes the discs to rotate with respect to the seats and the seats to reciprocate with respect to the annular disc-retaining housings to prevent such loadings from being transmitted to the optical element, thereby enabling the optical element to maintain a chosen, strain-free orientation with pressure on the spherical disc being evenly distributed.

Abstract: A temple end piece for a temple of a spectacle frame has a unit stable in a form composed of an essentially horizontal first segment and a second segment curving downward to the rear in the shape of an arc. Connected to this unit is a third segment formed by a soft, flexible band, the upper end of which is attached to the first segment and the lower end of which is permanently connected to the lower end of the second segment. This band extends in the uncharged state of the temple end piece curved essentially in the shape of an arc, in fact, in a manner similar to the second segment. In its longitudinal direction the band is neither stretchable nor compressible. By virtue of its high flexiblity the band fit the shape of the auricle and/or head of the spectacle wearer when the spectacles are worn in place, so that a large contact area with lower pressures will adjust itself, and any and all pressure points are prevented in this contact area.