Patent
Light expanding system for producing a linear or planar light beam from a point-like light source
Ping-Kaung Tai,Han Zou +1 more
TLDR
A light expanding system for converting a light beam generated from a point-like light source into a collimated linear or planar light beam is described in this article, which is suitable for use in devices utilizing a linear light beam, such as a scanner.Abstract:
A light expanding system for converting a light beam generated from a point-like light source into a collimated linear or planar light beam is disclosed herein. According to an embodiment of the invention, a system for producing a linear light beam includes a beam collector and a light pipe adjacent to which a multiplicity of specially configured microprisms are located. The light expanding system according to this embodiment is suitable for use in devices utilizing a linear light beam, such as a scanner. According to another embodiment of the invention, a system for producing a planar light beam includes, in addition to the beam collector and light pipe described above, an additional light pipe with adjacent microprisms. The light expanding system according to this embodiment of the invention can be used, for example, in displays, road signs, medical research equipment, instrument meters or jewelry; to light pictures or art work; or as part of a see-through lighting system for use in dentistry and surgery.read more
Citations
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Patent
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Patent
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TL;DR: In this paper, the transreflectors are used in a transreflector system or display to transmit more of the light emitted by a backlight or other light source incident on one side of the trans reflectors.
References
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Patent
Backlighting apparatus employing an array of microprisms
TL;DR: In this article, an improved backlighting apparatus comprising a slab waveguide (6) that accepts light rays generated by a light source (4) and transmits the light rays via total internal reflection is presented.
Patent
Thin panel illuminator
TL;DR: In this article, a thin panel illuminator includes a solid transparent panel member having one or more deformed output regions which cause light entering the panel along an input edge thereof to be emitted along the length of the panel.
Patent
Faceted light pipe
TL;DR: A light pipe (100) used for backlighting liquid crystal displays (D) has a planar front surface (110) and a stepped or faceted back surface (112), which are angled so that the injected light reflects off the facets and through the front surface as mentioned in this paper.
Patent
A backlighting system with a multi-reflection light injection system and using microprisms
Chen-Yu Tai,Han Zou +1 more
TL;DR: In this paper, an assembly for backlighting a liquid crystal flat panel display or other such arrangement requiring backlighting is described, which is composed of a multi-reflection light injection system, a light pipe (14), a collimating assembly (28), and a set of specifically configured microprisms (36).
Patent
Surface illuminating apparatus
Kojima Takeshi,Shinpei Ninomiya +1 more
TL;DR: In this article, a surface illuminating apparatus, which is provided with a transparent light guide plate 2, a reflecting plate 4 layered onto the rear surface of the guide plate, and a light diffusion plate 6 layered on top of the same, is provided between the light guide and the reflecting plate with an irregularly reflecting plate 3.