When producing a mirror as an optical component for an optical system of a projection exposure apparatus for projection lithography, first, an average value of a global gravitational acceleration is determined. Next, a gravitational acceleration difference between the gravitational acceleration at the production location and the gravitational acceleration average value is determined. After a determination of a target surface shape of a reflection surface of the mirror, a mirror substrate is machined at the production location taking into consideration the gravitational acceleration difference in a manner such that, under the influence of the gravitational acceleration average value, a current surface shape of the reflection surface of the mirror substrate does not deviate from the target surface shape by more than a prescribed figure tolerance value (P.sub.max). The result is an optical element with a relatively small figure at a use location of the mirror.

A convex mirrored device that is placed on the floor to reflect electronic viewing monitors in view of the user when in downward facing positions. The device includes one or more convex arched mirrors that are placed on the floor between the user and the screen with the reflective side up. The arched mirror allows the user to execute multiple different downward facing positions while viewing monitor screens in the room having different sizes and heights. In one embodiment, the device attaches to the front of an activity mat and has hinges between the mirrors so that activity mat and the mirrored device can be rolled up and folded together. This enables the device to rolled up and folded for easy transportation and storage by the user.

A method for assembling a vehicular interior rearview mirror assembly includes providing a mirror mount and a mirror head. The mirror head includes a transparent mirror frame and a mirror reflective element accommodated at the transparent mirror frame. The transparent mirror frame has a patterned front side having a plurality of channels established thereat and a rear side opposite the patterned front side. An illumination source is provided at the mirror head. The patterned front side of the transparent mirror frame is patterned to reflect light emitted by the illumination source, when powered, so that an illumination pattern is visible to a person viewing the rear of the transparent mirror frame. The mirror head is pivotally mounted at the mirror mount.

Infant observation minor assembly with temperature display for attachment to a top portion of a rear vehicle seat includes a main panel having opposed front and rear surfaces and a minor embedded in the front surface thereof. The mirror assembly further includes a temperature display section defined on the front surface of the main panel. A positioning base is coupled to the rear surface of the main panel. The main panel is pivotably attached to the positioning base for allowing rotation about a horizontal axis and a vertical axis. A mounting harness attaches to the positioning base. The mounting harness removably attaches to the top portion of the rear vehicle seat to hold the minor assembly in a selected lateral and vertical position on the rear vehicle seat.

A mirror system includes a base mirror assembly and an adjustable mirror assembly. The adjustable mirror assembly is coupled to the base mirror assembly. The adjustable mirror assembly includes an adjustable hinge system that facilitates movement of the adjustable mirror assembly relative to the base mirror assembly. The adjustable hinge system includes a first bracket, a second bracket, a hinge, and a third bracket. The first bracket is coupled to the base mirror assembly. The second bracket is coupled to the first bracket. The hinge is coupled to the adjustable mirror assembly. The third bracket is coupled to the hinge and the second bracket. The third bracket is coupled to the second bracket via a first screw such that the base mirror assembly is coupled to the adjustable mirror assembly. Rotation of the first screw causes movement of the adjustable mirror assembly relative to the base mirror assembly.

An optical combiner that combines light from a plurality non-coherent light sources and directs it to a single output is described. The non-coherent light sources are arranged within a housing in a linear fashion, with light emitted from at least two of the non-coherent light sources directed towards a focusing lens by reflection from wavelength-selective mirrors, with the focus of the focusing lens directed to an input of an optical waveguide. Reflected light from at least one non-coherent light source passes through at least one wavelength-selective mirror that reflects light from a different non-coherent light source. A terminal non-coherent light source passes through all the wavelength-selective mirrors. Emitted light is transmitted or reflected along a plurality of optical axes that are parallel but offset to correct for refraction.

Disclosed is a novel assembly and method that enables a user to collimate a focused Cassegrain telescope. The assembly, having a secondary mirror and support baffle, comprising an axle, a bearing, and hub, enables a user to precisely rotate or freely spin a Cassegrain telescope's secondary mirror about its optical axis. Incident to freely spinning the telescope's secondary mirror, the user may peer into the telescope's eyepiece and observe a focused image that may wobble, or remain stable, dependent upon how well the telescope's mirrors are aligned. Further, the assembly's eyepiece, comprising a reticle design, enables the observer to measure the magnitude and direction of image shift incident to the secondary mirror spinning. Lastly, the assembly, comprising a radially marked collimating faceplate, and radially marked collimating knob screws, enables a user to make specific adjustments to the telescope's secondary mirror, compensating for the observed image shift, precisely collimating the telescope.

According to various embodiments of the present invention, a three-dimensional imaging device and/or an electronic device may comprise: a stand for supporting an electronic device including a display panel; a half mirror disposed on one surface of the stand in such a way as to slantingly face the display panel of the electronic device supported by the stand; and a retro-reflection member disposed on the stand in such a way as to incline toward the half mirror, wherein the half mirror reflects an image (hereinafter, a first output image) output from the display panel to introduce the reflected image into the retro-reflection member, and allows the image reflected by the retro-reflection member to transmit therethrough, so as to form an image (hereinafter, a first aerial image) corresponding to the first output image, on a space at another side of the half mirror. Such an electronic device may exist in various forms according to embodiments.

A device for mixed reality includes a base, a curved mirror, a first holder, and a second holder. The curved mirror has a concave surface, a convex surface opposite to the concave surface, and a light transmissive medium between the concave surface and the convex surface. The first holder is disposed on the base, disposed in front of the concave surface and within a focal length of the curved mirror, and configured to support a portable apparatus to be oriented at an angle. The second holder is disposed on the base and supports the curved mirror to face the portable apparatus.

An optical combiner that combines light from a plurality non-coherent light sources and directs it to a single output is described. The non-coherent light sources are arranged within a housing in a linear fashion, with light emitted from at least two of the non-coherent light sources directed towards a focusing lens by reflection from wavelength-selective mirrors, with the focus of the focusing lens directed to an input of an optical waveguide. Reflected light from at least one non-coherent light source passes through at least one wavelength-selective mirror that reflects light from a different non-coherent light source. A terminal non-coherent light source passes through all the wavelength-selective mirrors. Emitted light is transmitted or reflected along a plurality of optical axes that are parallel but offset to correct for refraction.