Abstract: A method of designing an optical surface (110) for producing an image of an object (100) includes defining an object model (102) representing the object (100) that includes a plurality of object points. A magnification profile is defined which specifies a desired transverse magnification factor for at least each of said object points. For each object point of the object model, the method includes determining a curvature of the optical surface (110) at a point along at least one axis thereof, such that a magnification of an image (112) of the object model (102) at a corresponding image point corresponds with the desired magnification factor of the magnification profile. The optical surface (110) is then selected to have a substantially continuously varying curvature along the axis, and to include the determined surface point curvatures. Optical imaging apparatus including surfaces designed in accordance with the method are also provided.

Abstract: An asymmetrical mirror lens, usable on front fenders of school buses and similar vehicles, which has a plurality of mirror sections, each having a distinct constant radius of curvature to reduce image distortion. Optional sections located between sections of the constant radius of curvature have a step-wise changing radii of curvature to smooth the image sizes as an object moves across the mirror lens.

Abstract: A method of fabricating or preparing an optical component, such as a mirror, using an amorphous oxide coated substrate is presented. An amorphous oxide coating is applied to an optical substrate. An assessment of surface roughness of the coated surface is performed. The coated surface is polished based on the assessment. Initial assessments can be conducted and polishing can be performed based on those initial assessments prior to applying the coating to better prepare the surface for the coating. Each assessment can assess the surface's Mid-Spatial Frequency Roughness (MSFR), High-Spatial Frequency Roughness (HSFR), or both. The performing of the assessments, polishing and/or coating can be computer-controlled. This process is ideal in the fabrication of an optical component formed from a substrate with a near-zero coefficient of thermal expansion. An optical component fabricated in this manner is also presented.

Abstract: A partial curved on-vehicle rear view mirror, wherein a center main portion (1) is formed in a flat surface, but an outer portion (2) is formed in a gentle convex surface toward the outside, a lower portion (4) is also formed in a gentle convex surface toward the lower side, and an inner portion (3) is also formed in a convex surface toward the inside so that the view of the mirror can be safely and efficiently increased in each direction. Since the center main portion (1) is formed in the flat surface, the safety of the operations of automobiles, motorcycles, and so on can be sufficiently increased by sufficiently expanding the rear view to the sides and also expanding the view in the lower side while sufficiently securing visual stability.

Abstract: A vehicle side mirror that can visually confirm the blind spot of the main mirror without providing a prism or a fresnel lens on the window glass is provided. The vehicle side mirror is equipped with mirror housing attached to the side of the vehicle body and main mirror attached to the rear surface of mirror housing. The first sub-mirror that reflects the blind spot at the front side of the vehicle is provided on the side surface of mirror housing so as to face the vehicle body and second sub-mirror that reflects the blind spot at the center side of the vehicle is provided at the bottom portion of the rear surface of mirror housing.

Abstract: Two identical sides, include convex mirror 61, mirror-backing 62 and main-frame 21. Sides are attached together and to frame-backing 30 by three hinges 70. Three adjustable length legs 80 with swivel, magnetic feet 90 in main-frames 21 near corners. Front, centerline view provides reflections, right and left, 90 degrees to centerline, through 40 degree arcs backward. Mirrors are centered at rear of vehicle's trunk-lid so as visible through the inside rear-view mirror. Driver can thus easily and safely see critical areas which may otherwise be unobservable. This includes seeing around vehicles parked on either side. In highway driving, these mirrors allow a driver to clearly see “blind-spots” in the rear-view mirror. Risk of losing attention to the road and positive steering by turning around to look, is thus avoided.

Abstract: The present invention is directed to a mounting apparatus for mounting a panoramic mirror in front of the focal point of a camera. The mounting apparatus comprises a conical optical stage configured to contact the mirror at an end point along the longitudinal axis. An optical masking spike is also disclosed which can be disposed along the longitudinal axis and extend at least partially into the interior of the conical optical stage. The conical optical stage and optical masking spike provide improved stability of the overall optic and reduce unwanted glare in images reflected to the camera.

Abstract: Cross-view mirrors for buses and other vehicles which provide modified image sizes. The mirror assemblies have lens members created from the shape of a portion of an elliptical or circular toroid volumetric shape with an elliptical or circular cross-sectional shape. A first embodiment has an elliptical toroid volumetric shape with an elliptical cross-sectional shape. A second embodiment has an elliptical toroid volumetric shape with a circular cross-sectional shape.

Abstract: Pressure spring pieces elastically bias a free-form curved mirror such that the free-form curved mirror is pressed against positioning sections and positioned thereby. Displacement restricting sections are disposed opposite to the pressure spring pieces with respect to the free-form curved mirror in biasing directions of the pressure spring pieces with gaps. The gaps are set such that deformation of the pressure spring pieces remain within an elastic range when the free-form curved mirror moves against biasing forces of the pressure spring pieces to come into contact with the displacement restricting sections.

Abstract: A reflector includes a body having a reflective surface formed therein and a reflector opening defined in the body, the reflector opening having a plurality of ridges.

Abstract: An asymmetrical mirror lens, usable on front fenders of school buses and similar vehicles, which has a plurality of mirror sections, each having a distinct constant radius of curvature to reduce image distortion. Optional sections located between sections of the constant radius of curvature have a step-wise changing radii of curvature to smooth the image sizes as an object moves across the mirror lens.

Abstract: An aspheric mirror has an aspheric reflective surface symmetrical with respect to an optical axis that goes through the reflective surface and a reference plane provided in the reflective surface. The optical axis may go through the reflective surface at a non-center position on the reflective surface. The reference plane may be perpendicular to the optical axis. The reference plane may be flat enough for a beam to be reflected from the reference plane in almost specular reflection when emitted to the reference plane.

Abstract: An exterior rearview mirror mechanism for a skid loader includes a support and a mirror attached to the support. The support is configured to extend from a movable lifting arm of the skid loader, and the mirror is attached to the support opposite the movable lifting arm and positioned to enable an operator of the skid loader to visualize substantially an entirety of a tail swing path on either rear side of the skid loader.

Abstract: To provide an illumination beam (5) which is essentially homogeneous in cross-section, in particular for a laser scanning microscope (15), an illumination device is used which provides an original beam which is essentially rotationally symmetric in cross-section and is incident at a converting unit which then transmits the desired illumination beam (5) and which comprises, for this purpose, an aspherical, convex mirror (1) which is more strongly curved in the area of the point of incidence of the original beam (3) than in the areas removed from the point of incidence.

Abstract: A mirror assembly is provided having a base member and a dome lens member. The dome lens member has a varying dome lens radius of curvature with a center surface portion having a center surface radius of curvature and a peripheral surface portion having a peripheral surface radius of curvature greater than the center surface radius of curvature.

Abstract: A mirror assembly particularly adapted for use with an exterior automotive fender includes a plastic housing and plastic reflective surface element or lens. The housing has a slot formed therein which receives a tab formed on the lens to enable the housing and the lens to be snap-fitted together.

Abstract: A mirror mounting assembly for mounting a mirror on a vehicle bulkhead. The assembly includes a generally Z-shaped mirror mounting bracket configured for attachment to a structural portion of the vehicle inside an engine bay of the vehicle, and a support member connected to the mounting bracket. The mounting bracket includes a first flange and a second flange extending laterally in opposite directions from opposed edges of a connecting web. The first flange has two through-holes sized and positioned for connection to the structural portion inside engine bay by existing body panel mounting screws. The second flange and the connecting web are sized and configured so that the second flange extends out of the engine bay upon installation of the bracket. The support member carries a pivot element sized and configured to pivotally support a first support arm assembly for a rear view mirror unit and a second support arm assembly for a cross view mirror unit.

Abstract: A vehicle mirror assembly having a housing or base member, a mirror lens and a gasket. The mirror lens is provided in the shape of a portion of an end of an ellipsoid. The lens has a varying radius of curvature. The center portion of the lens has a smaller radius of curvature than the outer portions along the major axis of the lens creating an improved field of view of the reflected image.

Abstract: An optical delay line for use with an optical source including input/output optics optically coupled to the optical source and a curved mirror with a reflective surface that is centered about an evolute curve of the delay line to retro-reflect light traveling along a delay line beam path tangent to the edge of the evolute curve. The input/output optics direct light from the optical source along the delay line beam path and direct delayed light from the delay line beam path out of the optical delay line along an output beam path. The input/output optics and/or the curved mirror rotate about the evolute curve at a selected angular speed. The reflective surface has a curvature based on a parametric curve that is calculated from the evolute curve such that the delay of the delay line varies according to a predetermined function as the input/output optics and/or the curved mirror rotate.

Abstract: Device of layered structures for optical reflectors and method for making the device. A device for providing environmental stability and mechanical integrity in space includes a substrate and a first silicon oxynitride layer on the substrate. The first silicon oxynitride layer has a tensile stress. Additionally, the device includes a second silicon oxynitride layer on the first silicon oxynitride layer. The second silicon oxynitride layer has a compressive stress.

Abstract: A reflecting surface design system (50) has (1) first rendering means (54) for displaying a free-form surface (20) on which a plurality of segments (24), each of which is defined by a plurality of vertices (251 to 254), are formed, (2) reflection information specifying means (56) for specifying the vertex position and light reflecting direction for each of the plurality of vertices (251 to 254) that define one of the plurality of segments (24), and (3) surface calculation means (58) for calculating a surface (S) to be assigned to the one segment (24) on the basis of the vertex positions and light reflecting directions specified for the plurality of vertices (251 to 254) that define one segment (24), and the light source position, which is specified in advance.

Abstract: For an optical reflecting mirror formed by applying injection molding to a plastic material, it is an object of the present invention to suppress warpage or distortion due to molding contraction and provide an optical reflecting mirror such as an axial eccentric a spherical mirror or free curved surface mirror with a highly accurate mirror surface, which is an axial eccentric a spherical mirror or free curved surface mirror formed by applying injection molding to a plastic material, including a rib connected in such a way as to intersect with the body having the mirror surface, formed at least at the outer edge of the mirror surface closest to the maximum curvature part within the mirror surface.

Abstract: An automobile exterior sideview mirror system includes an exterior sideview mirror assembly, which includes a reflective element assembly. The reflective element assembly includes a first reflective element having a unit magnification and a second reflective element having a curvature. The first reflective element and the second reflective element are supported at a support element. The mirror system preferably further includes an actuator, which is operable to adjust the orientation of the reflective element assembly. The second reflective element is disposed adjacent to and separate from the first reflective element when it is included in the exterior sideview mirror assembly. Further, a demarcation element is provided between the first reflective element and the second reflective element. A portion of the second reflective element adjacent the demarcation element has a front surface that is generally coplanar with the front surface of the first reflective element.

Abstract: A vehicle mirror assembly is provided comprising a base. The base comprises a first base portion defined by a first base longitudinal line and a first base periphery. The first base portion has a first base radius of curvature. The base further includes a second base portion defined by the first base longitudinal line and a second base periphery. The second base portion has a second base radius of curvature. A dome lens conforms to the base. The dome lens has a varying dome lens radius of curvature. The dome lens comprises a center surface portion having a center surface radius of curvature. The center surface radius corresponding to a position on said dome lens aligned with a first base longitudinal midpoint to said dome lens and is perpendicular to the first base longitudinal line. A peripheral surface portion has a peripheral surface radius of curvature corresponding to the first base periphery. The peripheral surface radius of curvature is greater than the center surface radius of curvature.

Abstract: A mirror mounting assembly for mounting a mirror on a vehicle bulkhead. The assembly includes a mirror element and a main support arm having a first end and a second end. The mirror element is connected to the first end of the main support arm. The second end of the main support arm is mountable to the vehicle. A pair of brackets are configured to conform to an engine bay side wall of the vehicle. Each bracket has a center portion and two laterally extending flanges that extend at an angle from the center portion in opposite directions. One of the flanges of each bracket is connectable to the bulkhead of the vehicle in the engine bay. A first additional support arm has a first end connected to a first one of the brackets and a second end connected to the main support arm. A second additional support arm has a first end connected to the main support arm and a second end connectable to the vehicle.

Abstract: A mirror with wide viewing angle and reduced image distortion, to be used as an external rear-view mirror for vehicles which is obtained monolithically by pressure injection-molding or gravity casting of a highly transparent material and its external incident surface is flat, while the reflective rear part is obtained by means of an aspheric surface which is generated by the rotation, about an axis which is ideally parallel to the centerline axis of the vehicle, of a curve which determines, with good approximation, a profile which avoids significant deformation of the reflected images.

Abstract: A variable mirror that is readily formable and can be readily and precisely changed into various configurations as desired. The variable mirror includes a mirror body formed of an elastic or flexible material and having one surface functioning as a reflecting surface. The mirror body is capable of changing the reflecting surface configuration. The rigidity of the mirror body varies in a direction parallel to the one surface.

Abstract: A vehicle mirror assembly 10 is provided. The vehicle mirror assembly 10 comprises a base 12 comprising a first base ellipsoidal portion 32 having a constant first minor axis 27? and a major longitudinal axis 38. The base 12 further comprises a second base ellipsoidal portion 34 having a second base minor axis 27? and sharing the major longitudinal axis 38. The first minor axis 27? and said second minor axis 27? are merged to form a common minor axis 27. The major longitudinal axis 38 intersects the common minor axis 27 in a position non-coincidental with a center of said common minor axis 27. The mirror assembly 10 further includes a dome lens 14 conforming to the base 12. The dome lens 14 comprises a first surface elliptical portion 48 having a longitudinal axis radius of curvature R1 taken along the major longitudinal axis 38 and a first minor radius of curvature R3 taken along the first minor axis 27?. The first surface elliptical portion 48 conforms to the first base ellipsoidal portion 32.

Abstract: An automotive rear view mirror includes a primary flat reflective surface that generates an undistorted image, and three secondary reflective surfaces that are curved so as to increase the field of view laterally and also vertically. The curved reflective surfaces include a relatively large trapezoidal surface curved in the horizontal plane for increasing the field of view in the horizontal direction, and two smaller triangular curved reflective surfaces contiguous with the upper and lower boundaries of the trapezoidal surface for increasing the field of view in the vertical direction.

Abstract: An image display device includes a case with an opening, a luminous source image display displaying a first image, and a focusing element. The focusing element is positioned within the case, and includes a concave mirror and a mirror supporter that supports the concave mirror. The mirror supporter includes a mirror cradle. The mirror screen is mounted on the arms of the mirror cradle. The mirror cradle includes a buffering pad at the tip of each arm, and the buffering pad includes adhesive parts on both surfaces. The tip of the arms of the mirror cradle is attached to the back of the mirror screen, and the attachment is achieved with a surface contact. The mounting holes on the top and bottom plates are oblong. The oblong mounting holes are adapted to adjust the mounting position of the mirror screen of the image display device.

Abstract: A mirror that, when used as a side view mirror, greatly increases the driver's field of view and eliminates the blind spot that is inherent in traditional side view mirrors. The mirror comprises two halves, the first half consisting of a plane mirror and the second half being a mirror with a convex shape. The plane mirror can be used to view other vehicles at a distance. The half with the convex shape is used to view vehicles that are close to the driver's vehicle. The increased field of view, and elimination of the blind spot, makes lane changes safer for the driver and other vehicles on the road.

Abstract: Disclosed is a half mirror reflector having an LED road sign, which can be used as a reflector in the daytime and as both a reflector and a road sign in the nighttime. The half mirror reflector comprises: a support plate attached to a support rod; a half mirror fixed to the support plate; an LED road sign mounted on the support plate under the half mirror and having a plurality of LEDs; a PCB substrate mounted on the support plate under the half mirror to control the operation of the LED road sign; and a solar battery module provided at the upper part of the support rod to generate a voltage for operating the LED road sign and supply the voltage to the PCB substrate.

Abstract: It is taught that two reflective parabolic or paraboloidal surfaces of different scales whose axes point in opposite directions but which share a common focal point can be used as an image forming telescope. If only a portion of a parabolic or paraboloidal sliced along the optical axis is used as the surfaces, then they can be configured so that light rays strike the surfaces at such angles as to be totally internally reflected. Thus a solid prism can be constructed that serves as telescopic or non-imaging collector of light with no loss of energy due to internal reflection or refraction. Since this system does not depend on an optically precise entry surface, it may be useful in fiber optic and solar power applications.

Abstract: An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light.

Abstract: A wide-angle imaging device suitable for a monitor area of about 180 degrees. A first reflection mirror (1) is provided that has, around the rotation center axis (6) of a rotary symmetrical body, a reflection surface having an approximately ±90-degree convex shape with respect to a reference optical axis direction, an image forming lens (2) that has a principal point (7) on the rotation center axis of the first reflection mirror (1) and forms the image of a reflection beam from the first reflection mirror (1) and an imaging element (3) are disposed, and an object within approximately ±90 degrees around the rotation center axis of the first reflection mirror (1) is imaged.

Abstract: Beams inputted from a fiber are collected by a lens and are angular-dispersed by a VIPA. The luminous flux from the VIPA is collected on a surface-shape variable mirror by a lens. The surface-shape variable mirror is configured in such a way that a mirror shape can be controlled by a piezo stage and necessary wavelength dispersion can be applied, if necessary. Although the beam group reflected on the surface-shape variable mirror propagates the light path backward, the beam group is inputted to a position different from the outputted position when the beam group enters the VIPA. Therefore, a desired wavelength dispersion can be given to each beam group by performing control of the input position in the VIPA for each wavelength using the surface-shape variable mirror.

Abstract: A precision surface formed of a thin stretchable membrane. The shape and curvature of the formed surface are determined by the boundary over which the membrane is stretched, a forming pressure (if applicable), and the membrane's mechanical properties. The surface has the property that it can concentrate electromagnetic radiation and, if appropriate materials for the membrane and boundary are chosen, the resulting system can have very low mass with diffraction limited optical performance. The surface may be incorporated into a telescope or imaging system wherein the system consists of a large primary optical element and subsequent corrective optical elements.

Abstract: A mirror which reflects input light from a lens which focuses light emitted from a VIPA, and returns the light to the lens is constituted as a multi-faced mirror including multiple reflection surfaces in the traveling direction of the input light which individually reflect light with a different wavelength, and have a different shape. As a result, an apparatus which has a small optical loss, and generates a different wavelength dispersion depending on a channel signal wavelength of a WDM signal.

Abstract: An automobile exterior sideview mirror system includes an exterior sideview mirror assembly, which includes a reflective element assembly. The reflective element assembly includes a first reflective element having a unit magnification and a second reflective element having a curvature. The first reflective element and the second reflective element are supported at a support element. The mirror system preferably further includes an actuator, which is operable to adjust the orientation of the reflective element assembly. The second reflective element is disposed adjacent to and separate from the first reflective element when it is included in the exterior sideview mirror assembly. Further, a demarcation element is provided between the first reflective element and the second reflective element. A portion of the second reflective element adjacent the demarcation element has a front surface that is generally coplanar with the front surface of the first reflective element.

Abstract: Various configurations of a virtually imaged phased array (VIPA) generator in combination with a mirror to compensate for chromatic dispersion. A VIPA generator produces a light traveling from the VIPA generator. In some embodiments, a variable curvature mirror is positioned to reflect the light back to the VIPA generator. A rotation axis around which the mirror is rotated and a translation path for the rotation axis are provided, to change the curvature of the mirror where the output light is reflected. In other embodiments, a plurality of mirrors have different surface curvatures. A holder has a rotation axis and holds the plurality of mirrors equidistantly from the rotation axis. The holder is rotatable around the rotation axis to bring a different, respective mirror in position to reflect light produced by a VIPA generator back to the VIPA generator. In other embodiments, a rotating mirror is rotatable about a rotation axis to reflect light produced by a VIPA generator to a respective fixed mirror.

Abstract: A composite mirror adapted for use as an outside rearview mirror of a motor vehicle includes a main or primary viewing mirror and an auxiliary blindzone viewing mirror juxtaposed to expose the vehicle blindzone to the vehicle operator. The main viewing mirror is generally of unit magnification. The auxiliary mirror is generally composed of a convex surface that can be either attached atop the surface of the main viewing mirror or placed within a cut-out region of the main viewing mirror. The auxiliary mirror can be partially recessed below the surface of the main viewing mirror and can have a skirt for minimizing undesirable reflections in the main viewing mirror.

Abstract: An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light.

Abstract: A variable shape mirror comprises a frame member having an opening, and a thin film having a first region including a reflecting plane and a second region of higher rigidity than the first region disposed in the outer periphery of the first region, being supported in the opening of the frame member. Other variable shape mirror comprises a frame member having a first opening and a second opening, a first thin film having a reflecting plane, forming an electrode, and supported in the first opening of the frame member, a second thin film forming an electrode electrically conducting with the electrode of the first thin film, and supported in the second opening of the frame member, and a substrate bonded to the frame member at a specified interval, and having an electrode at a position opposite to the electrode of the second thin film.

Abstract: A dispersion compensator is formed by an angular dispersion element, a diffracting optical element, and a reflecting mirror. By forming a reflecting surface in free-formed surfaces which are different between Y-Z plane and X-Z plane and shifting a reflecting position on a reflecting surface per wavelengths, dispersion and dispersion slope are compensated by having an optical path length difference per wavelengths. By doing this, it is possible to realize a dispersion compensator which can compensate dispersion and dispersion slope simultaneously with low loss.

Abstract: A side view mirror assembly and method of adjustment for use on an automotive vehicle. The mirror assembly includes a support for mounting to a side of the vehicle and supporting a reflective surface. The reflective surface has an outboard region, and an inboard region between the side of the vehicle and the outboard region. The inboard region is generally convex shaped, while the outboard region forms the majority of the reflective surface and is generally flat. A vehicle operator can tilt the reflective surface relative to the vehicle such that a portion of the side of the vehicle can be seen by a reflection from the inboard region. The outboard region can then be used to view other vehicles behind and to the side of the vehicle.

Abstract: This invention provides a reflective element assembly suitable for use in an exterior sideview mirror assembly mounted to the side body of an automobile. The reflective element assembly includes a first reflective element and a second reflective element. The second reflective element is angled downwardly and forwardly with respect to the first reflective element when the mirror assembly is mounted to a side of an automobile to provide an increased field of view. In one form, both reflective elements are commonly supported on a bezel, which is mounted to the mirror assembly casing. In another form, the reflective elements are separately mounted, with the second reflective element fixedly mounted to the casing and the first reflective element movably supported in the mirror casing, for example, on an actuator.

Abstract: An optical apparatus for producing chromatic dispersion. The apparatus includes a virtually imaged phased array (VIPA) generator, a mirror and a lens. The VIPA generator receives an input light at a respective wavelength and produces a corresponding collimated output light traveling from the VIPA generator in a direction determined by the wavelength of the input light, the output light thereby being spatially distinguishable from an output light produced for an input light at a different wavelength. The mirror has a cone shape, or a modified cone shape. The lens focuses the output light traveling from the VIPA generator onto the mirror so that the mirror reflects the output light. The reflected light is directed by the lens back to the VIPA generator. In this manner, the apparatus provides chromatic dispersion to the input light.

Abstract: A display apparatus which has a mirror with a free curved reflective surface of which curvature fluctuates with inflection points, a liquid crystal display (LCD), a back light and a polarizer. Light of an image which was modulated by the LCD is reflected by the free curved reflective surface and passes through the polarizer. Then, the light is directed to an optical pupil. Since the curvature of the free curved reflective surface fluctuates with inflection points, curvature of field and distortion can be corrected properly, and an image of high quality can be formed.

Abstract: An optical apparatus includes a nonplanar light-reflecting surface having a shape referenced relative to an orthogonal axial system having an x-axis, a y-axis, and a z-axis. The light-reflecting surface has a non-circular conic profile with a conic axis and a distance f from a conic vertex to a finite focal point of the conic, wherein the non-circular conic profile is determined in a yz-plane containing the y-axis and the z-axis. The light-reflecting surface has a circular profile with a circular center and a radius of curvature r numerically equal to the distance f from the conic vertex to the finite focal point of the conic, wherein the circular profile is determined in an xz-plane containing the x-axis and the z-axis. A point light transceiver is at a transceiver location, wherein the transceiver location lies on the conic axis in the yz plane, and also at the circular center in the xz plane.

Abstract: In order to increase the field of vision in cars, there are accessory rear-view mirrors that are fitted to a rear support, and are assembled by being placed over and firmly attached to the conventional rear-view mirror. These accessories are well known as having an excessive weight and being attached to the interior rear-view mirror using inadequate means.