Reflects twice between a pair of light reflecting surfaces, and utilizes the effect that the light after two reflections (passed light) forms an image at a spatial position on the opposite side of the array (symmetric with respect to the element surface). A micromirror array in which a large number of optical elements or convex unit optical elements are arrayed has attracted attention in recent years because of its simple structure and expected to reduce manufacturing costs (see Patent Documents 1 and 2). Among them, a concave unit having “two mirror surfaces orthogonal to each other” (a pair of adjacent light reflecting surfaces forming a right-angled corner, that is, “corner reflector”) disposed at an angle perpendicular to or close to this substrate. A micromirror array in which a plurality of elements are arranged has been developed. in space, a unit optical that reflects light by one or more mirror surfaces is applied to a substrate (substrate) that constitutes the element surface of the optical element. G02B5/124- Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet.G02B5/122- Reflex reflectors cube corner, trihedral or triple reflector type.voxels by projecting aerial or floating images stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. G02B30/56- Optical systems or apparatus for producing three-dimensional effects, e.g.G02B30/50- Optical systems or apparatus for producing three-dimensional effects, e.g.G02B30/00- Optical systems or apparatus for producing three-dimensional effects, e.g.G02B5/136- Reflex reflectors plural reflecting elements forming part of a unitary body.G02B5/00- Optical elements other than lenses.G02B- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP2012043860 external-priority Application filed by 日東電工株式会社 filed Critical 日東電工株式会社 Priority to US14/379,904 priority Critical patent/US9519088B2/en Priority to CN201380011206.8A priority patent/CN104160304B/en Publication of WO2013129043A1 publication Critical patent/WO2013129043A1/en Links Inventor 紀行十二昭子長藤 Original Assignee 日東電工株式会社 Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents WO2013129043A1 - Dihedral corner reflector array WO2013129043A1 - Dihedral corner reflector array

Dihedral reflector