摘要:
A head mounted display with improved high transmission see-through view of the surrounding environment with an overlaid high contrast displayed image includes upper optics with a first optical axis including an emissive image source that provides image light comprised of one or more narrow spectral bands of light, one or more lenses, a stray light trap and non-polarized lower optics with a second optical axis including a planar beam splitter angled relative to the first and second optical axes and a curved partially reflective mirror, wherein one or more of the reflective surfaces are treated to reflect a majority of incident light within the one or more narrow spectral bands and transmit a majority of incident visible light from the surrounding environment.
摘要:
There is disclosed an optical device, including a light-transmitting substrate having an input aperture, an output aperture, at least two major surfaces and edges, an optical element for coupling light waves into the substrate by total internal reflection, at least one partially reflecting surface located between the two major surfaces of the light-transmitting substrate for partially reflecting light waves out of the substrate, a first transparent plate, having at least two major surfaces, one of the major surfaces of the transparent plate being optically attached to a major surface of the light-transmitting substrate defining an interface plane, and a beam-splitting coating applied at the interface plane between the substrate and the transparent plate, wherein light waves coupled inside the light- transmitting substrate are partially reflected from the interface plane and partially pass therethrough.
摘要:
L'invention concerne un composant de séparation spectrale (10) à deux faces, une face avant (11) plane comportant un traitement dichroïque et une face arrière (12'). Il est destiné à être placé en aval d'un objectif convergent. La face arrière (12') est convexe selon une surface cylindrique définie par une génératrice de direction fixe se déplaçant perpendiculairement le long d'un arc de cercle (12) comportant deux extrémités, le plan (13') passant par ces deux extrémités et parallèle à la génératrice de la surface cylindrique formant un dièdre avec le plan de la face avant (11), la génératrice de la surface cylindrique étant parallèle à l'arête (14') du dièdre.
摘要:
A system and method of making a remarkably bright high-gain reflective beam-splitter is presented. Each non-glued together touching layer of the multilayered film of the beam splitter has front and back reflective surfaces that additively increase the brightness. The system can include tables, step-down shelves, cutting bars, gripper units, tension units, a frame, a hoist assembly, and dollies. Constructing the beam-splitter can use grippers that slip slightly, as a function of applied tensioning force, along the trimmed edges of the multilayered film. This slip gripping scheme can result in constructing subtantially coplanar sheets of the multilayered film that touch each other face to face and result in removing most of the air between the sheets. The planar integrity of the multilayered film of the high-gain reflective beam-splitter can be maintained at almost any desired display angle even when the high-gain reflective beam-splitter is as large as a standard theatrical stage.
摘要:
The invention relates to a quasi-monolithic polarization beam splitter assembly for splitting a UV beam into two partial beams, comprising two optical prisms (1) that form a polarization beam splitter (2) and a holding part (6) having no optically effective surfaces, which holding part is connected to the polarization beam splitter (2). The invention also relates to a method for producing such a polarization beam splitter assembly, which is characterized in that even after mounting the polarization beam splitter assembly in an optical mount, the partial beams passing therethrough undergo only a very slight wavefront deformation.
摘要:
Novel thin film optical filters have an integral air layer. The frustrated total internal reflection (FTIR) phenomenon, combined with thin film interference, is used to effectively control the polarization properties of thin film coatings operating at oblique angles. The invention is applicable to high-performance thin film polarizing beam-splitters, non-polarizing beam-splitters, non-polarizing cut-off filters and non-polarizing bandpass filters, and any other thin film coatings that require the control of polarization effect. The low index layer offers an improvement in performance and the simplification of the thin film optical filter coating designs by reducing the total number of layers and the total layer thicknesses to minimize the angles of incidence and the size of the filter substrates, thereby minimizing the contact area and hence reducing the manufacturing costs.
摘要:
A method for fabricating a pellicle beam splitter (200, 300, 400, 500, 600, 612, 716) includes etching an aperture (214, 606, 610, 718, 720) in a support substrate (202, 608, 700); bonding a beam splitter substrate (208, 406, 710) to an upper surface of the support substrate so that the beam splitter substrate (208, 406, 710) covers the aperture (214, 606, 610, 718, 720); and depositing at least one optical coating (210, 212, 402, 404, 602, 604, 712, 714) on the beam splitter substrate (208, 406, 710). A pellicle beam splitter includes a support substrate (202, 608, 700), an aperture (214, 606, 610, 718, 720) created in the support substrate (202, 608, 700) using a semiconductor fabrication processes and a beam-splitting coating (210, 402, 602, 712) covering the aperture (214, 606, 610, 718, 720).
摘要:
Ein optisches Filter zur Manipulation des Spektrums einer Lichtquelle umfasst ein transparentes Substrat und ein lediglich auf einer Seite aufgebrachtes erstes Schicht System, vorzugsweise ein Interferenzschichtsystem. Das Substrat und das erste Schichtsystem bilden ein kombiniertes UV und IR-Filter (UVIR-Filter), dergestalt, dass mittels des ersten Schichtsystems Strahlungsanteile sowohl unterhalb einer Wellenlänge von 420 nm, insbesondere des UV-Bereichs, als auch oberhalb einer Wellenlänge von 690 nm Wellenlänge, insbesondere des IR-Bereichs, nicht vollständig transmittiert werden.