Patent
Diffractive optical element
Hideki Sato
- 06 Jun 2001
15
TL;DR: In this paper, a diffractive element includes a first diffractive optical part having a phase type diffractive grating, and a second diffractive component having a different grating formed of a material differing from that of the first component.
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Abstract: A diffractive optical element includes a first diffractive optical part having a phase type diffractive grating, and a second diffractive optical part having a phase type diffractive grating formed of a material differing from that of the first diffractive optical part. The first diffractive optical part and the second diffractive optical part are disposed in proximity to each other with an air layer. Each of the first diffractive optical part and the second diffractive optical part has a mark for aligning them with the optical effective areas thereof.
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Citations
Patent
Image display device and manufacturing method thereof
Shinichi Uehara,Nobuaki Takanashi +1 more
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TL;DR: In this article, a marker for lens is provided as aligning unit in a lenticular lens that is of optical unit, and marker for display panel is used as alignment unit in transmissive liquid crystal display panel.
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Patent
Minute Structure and its Manufacturing Method
Masatoshi Hayashi
- 02 Oct 2006
TL;DR: In this article, a manufacturing method of a minute structure having fine structures on opposing inner surfaces, including the steps of forming a first pattern in a surface of a first layer, forming a sacrificial layer on the patterned surface of the first layer.
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Method of molding, process for producing lens, molding apparatus, process for producing stamper, master production apparatus, stamper production system, and stamper production apparatus
Kunio Yoshida
- 12 Jun 2008
TL;DR: In this paper, the authors describe a transfer process composed of the transformation step of bringing a transfer member with a transfer configuration area consisting of the same configuration as that of a lens part with aspherical configuration into contact with a photohardening resin, and the departing step of letting the photheardened resin and the transfer member depart from each other.
27
Patent
Light directing film and method for making the same
Alan B. Campbell,Dale L. Ehnes,John F. Van Derlofske,Mark R. Dupre,Stephen J Dreyer,Patrick H Marushin,Todd M. Johnson,Bryan V. Hunt +7 more
- 01 Apr 2009
TL;DR: In this paper, a light directing film includes a structured major surface with a plurality of microstructures extending along a first direction, each microstructure has a first region and a second region different from the first region, a substantially constant height in the first regions and a non-constant maximum height of the second region greater than the substantially constant high point of the first, and a same lateral cross-sectional shape in both regions.
17
Patent
Laminated diffractive optical element and optical system
Kenichi Saito,Kazutaka Inoguchi +1 more
- 05 Oct 2010
TL;DR: The laminated diffractive optical element includes plural diffraction gratings 21, 22 and 23 laminated with each other, the respective gratings being formed of a same light-transmissive material as mentioned in this paper.
16
References
Patent
Lenslet array systems and methods
Robert J. Burger
- 24 Jan 1997
TL;DR: A stacked array magnifier (SAM) as discussed by the authors consists of one or more non-refractive lenslet arrays and one or multiple refractive lenslets to form a plurality of lenslet channels.
358
Patent
Multi-focal diffractive ophthalmic lenses
John A Futhey,Michael J Simpson +1 more
- 31 Mar 1989
TL;DR: In this paper, a lens according to the invention has diffractive power and two primary foci, where one focus is associated with the first diffractive order and one with the second order.
258
Patent
Optical element employing aspherical and binary grating optical surfaces
Chen Chungte W
- 06 Feb 1990
TL;DR: In this article, a negative meniscus optical element (107) and a positive power lens (112) are affixed to a common housing (124), which is removable from the telescope system.
222
Patent
Multiple optical channels for chemical analysis
Harold G. Craighead
- 21 Jul 1997
TL;DR: In this paper, a channel block incorporating microfabricated channels and an integral gel material is used for optical analysis of a sample material, which includes multiple closely spaced pillars to form a porous separator for sample material to be analyzed.
114
Patent
Diffraction bifocal with adjusted chromaticity
Allen L. Cohen
- 17 Jul 1990
TL;DR: A diffraction bifocal lens or lens system, comprising two profiled surfaces or interfaces or a linear combination thereof, wherein one profile provides for the bifocality of the lens and the other profile compensates for chromatic aberration, is described in this paper.
113