CN113448007A - Method for realizing diversified illumination through fiber cladding design - Google Patents

Method for realizing diversified illumination through fiber cladding design Download PDF

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Publication number
CN113448007A
CN113448007A CN202110821819.4A CN202110821819A CN113448007A CN 113448007 A CN113448007 A CN 113448007A CN 202110821819 A CN202110821819 A CN 202110821819A CN 113448007 A CN113448007 A CN 113448007A
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China
Prior art keywords
illumination
design
cladding
opening
point
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Pending
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CN202110821819.4A
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Chinese (zh)
Inventor
张健
赵静
魏峘
覃翠
余辉龙
何睿清
姜男澜
吴利婷
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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Priority to CN202110821819.4A priority Critical patent/CN113448007A/en
Publication of CN113448007A publication Critical patent/CN113448007A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a method for realizing diversified illumination through fiber cladding design, which is characterized in that a plurality of positions in a single large-diameter fiber are removed, an opening is formed at the position where the cladding is removed, the refractive index and the incidence angle do not meet the total reflection condition, partial reflection and partial transmission occur, wherein the transmitted light beam forms an illumination light source of the point, and each opening on the fiber path is equivalently provided with a point light source, so that diversified illumination modes are formed. By the scheme of the invention, a single optical fiber can be used for obtaining a decorative effect with a complex pattern. The technical scheme provided by the invention can be applied to illumination and decoration in various large-range environments, such as underwater illumination, architectural decoration and the like.

Description

Method for realizing diversified illumination through fiber cladding design
Technical Field
The invention relates to the field of optical fiber illumination and optical system design, in particular to a method for realizing diversified illumination through optical fiber cladding design.
Background
At present, a plurality of optical fibers are adopted for optical fiber illumination application to realize illumination, decoration and the like, illumination in different environments or decoration design in different scenes are mainly realized through the design of a plurality of optical fiber output heads, and each optical fiber output head is equivalent to one pixel point. The design of complex patterns sometimes requires the use of large numbers of optical fibers, which is wasteful for reasonable utilization of resources.
Disclosure of Invention
The invention aims to provide a method for realizing diversified illumination through an optical fiber cladding design, which realizes multi-point illumination through a hole design for removing the cladding in a large-diameter optical fiber, and realizes the decoration function of complex patterns by matching with the optical system design of a hole opening.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a method for realizing diversified illumination through optical fiber cladding design is characterized in that a plurality of positions in a single large-diameter optical fiber are removed, an opening is formed at the position where the cladding is removed, the refractive index and the incident angle do not meet the total reflection condition, partial reflection and partial transmission occur, wherein the transmitted light beam forms an illumination light source of the point, and each opening on the optical fiber path is equivalent to providing a point light source, so that diversified illumination modes are formed.
Different material structure designs are arranged at the opening formed by removing the cladding, so that the emergent illuminance, the emergent light direction and the emergent spectrum of the point light source of each opening have different designs.
Furthermore, a specially designed lampshade is installed at each point of the light source formed by removing the cladding, so that a decorative effect with complex patterns is obtained.
Wherein, the material structure design of opening part is spherical lens type output structure, can expand the light scope.
The material structure at the opening is designed into a transmission grating output structure, so that light can be split and output from the optical fiber, and the transmission direction can be changed.
Wherein, the material structure design of opening part is light filter output structure, selects different colour spectral output, can obtain the illumination of different colours.
Wherein, the material structure at the opening is designed into a multilayer film system light-transmitting structure, and the selection range of spectral output can be expanded.
As a preferable scheme, on a single large-diameter optical fiber transmission path, the same coupling output structure design is performed at the point light source formed by each opening or multiple structure diversity designs are integrated according to circumstances, so that multi-point illumination or decoration effects of the single optical fiber can be obtained.
Compared with the prior art, the invention has the beneficial effects that:
the invention sets different material structure designs through the design of the opening for removing the cladding in the thick-diameter optical fiber, so that the emergent illuminance, the emergent light direction and the emergent spectrum of the point light source of each opening can have different designs. Meanwhile, a specially designed lampshade can be installed at each point of the light source formed by removing the cladding, and the decorative effect with complex patterns can be obtained. The technical scheme provided by the invention can be applied to illumination and decoration in various large-range environments, such as underwater illumination, architectural decoration and the like.
Drawings
FIG. 1: a design drawing of a point light source is formed at an opening of the optical fiber path.
FIG. 2: and (5) coupling out a structural type diagram.
FIG. 3: single fiber diversified lighting structure diagram.
Detailed Description
The above-mentioned contents of the present invention are further described in detail by way of examples below, but it should not be understood that the scope of the above-mentioned subject matter of the present invention is limited to the following examples, and any technique realized based on the above-mentioned contents of the present invention falls within the scope of the present invention.
A method for realizing diversified illumination through optical fiber cladding design is characterized in that a plurality of positions in a single large-diameter optical fiber are removed, an opening is formed at the position where the cladding is removed, the refractive index and the incident angle do not meet the total reflection condition, partial reflection and partial transmission occur, wherein the transmitted light beam forms an illumination light source of the point, and each opening on the optical fiber path is equivalent to providing a point light source, so that diversified illumination modes are formed.
Different material structure designs are arranged at the opening formed by removing the cladding, so that the emergent illuminance, the emergent light direction and the emergent spectrum of the point light source of each opening have different designs.
And a specially designed lampshade can be arranged at each point of the light source formed by removing the cladding, so that the decorative effect with complex patterns can be obtained.
The principle of the invention is that the optical fiber light transmission utilizes the design of a specific fiber core and a cladding to realize the total reflection of an optical signal in the fiber core, the optical signal is transmitted from a fiber head to a fiber tail almost without loss, when a crack occurs at a certain position in an optical fiber path, the total reflection condition is destroyed, and partial light leaks from the position to form light leakage. If the active light leakage design is performed by using the crack, multi-point illumination can be obtained on one optical fiber.
In the invention, the cladding is removed at a certain position in the single large-diameter optical fiber, so that the refractive index and the incident angle at the point do not meet the total reflection condition, and partial reflection and partial transmission can occur, wherein the transmitted light beam forms an illumination light source of the point, as shown in fig. 1.
Satisfy the requirement of
n0sinθ1=n1sinθ2
n0sinθ3=n1sin(90°-θ2)
Each opening on the optical fiber path is equivalent to providing a point light source, if a lampshade with special design is matched with each point, the decorative effect with complex patterns can be obtained, the point light sources of a plurality of optical fibers are not required to be designed together, the cost of optical fiber materials is saved, and the optical fiber arrangement design is simplified. The cladding is removed at a certain position in a single thick-diameter optical fiber, and different material structure designs are arranged on the cladding, so that the emergent illuminance, the emergent light direction and the emergent spectrum of each illumination point are designed differently.
M at the opening in fig. 1 is a coupling output design of a special structure, as shown in fig. 2, (a) is a spherical lens type output structure, which can expand the light range, (b) is a transmission grating output structure, which can perform light splitting output on an optical fiber and change the transmission direction, (c) is a filter output structure, which can select different color spectral outputs, (d) is a multilayer film system light transmission structure, which can expand the spectral output selection range.
On the transmission path of the single large-diameter optical fiber, the same coupling output structure design is performed at each light leak hole, or the diversified designs of various structures are synthesized according to circumstances, so that the multi-point illumination or decoration effect of the single optical fiber can be obtained, as shown in fig. 3.
The technical scheme can be applied to illumination and decoration in various large-range environments, such as underwater illumination, architectural decoration and the like.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any person skilled in the art can make any simple modification, equivalent replacement, and improvement on the above embodiment without departing from the technical spirit of the present invention, and still fall within the protection scope of the technical solution of the present invention.

Claims (8)

1. A method for realizing diversified illumination through fiber cladding design is characterized in that: the cladding is removed at a plurality of positions in the single large-diameter optical fiber, an opening is formed at the point where the cladding is removed, the refractive index and the incident angle do not meet the total reflection condition, partial reflection and partial transmission occur, the transmitted light beam forms the illumination light source of the point, and each opening on the optical fiber path is equivalently provided with a point light source, so that diversified illumination modes are formed.
2. The method of claim 1 for achieving diversified illumination through fiber cladding design, wherein: different material structure designs are arranged at the opening formed by removing the cladding, so that the emergent illuminance, the emergent light direction and the emergent spectrum of the point light source of each opening have different designs.
3. The method of claim 1 for achieving diversified illumination through fiber cladding design, wherein: and a specially designed lampshade is arranged at each point of the light source formed by removing the cladding, so that the decorative effect with complex patterns is obtained.
4. The method of achieving diversified illumination by fiber cladding design according to claim 2, wherein: wherein, the material structure design of opening part is spherical lens type output structure, can expand the light scope.
5. The method of achieving diversified illumination by fiber cladding design according to claim 2, wherein: the material structure at the opening is designed into a transmission grating output structure, so that light can be split and output from the optical fiber, and the transmission direction can be changed.
6. The method of achieving diversified illumination by fiber cladding design according to claim 2, wherein: wherein, the material structure design of opening part is light filter output structure, selects different colour spectral output, can obtain the illumination of different colours.
7. The method of achieving diversified illumination by fiber cladding design according to claim 2, wherein: wherein, the material structure at the opening is designed into a multilayer film system light-transmitting structure, and the selection range of spectral output can be expanded.
8. The method of claim 1 for achieving diversified illumination through fiber cladding design, wherein: on the transmission path of the single large-diameter optical fiber, the point light sources formed by the openings are subjected to the same coupling output structural design or the diversified design of various structures is integrated according to the situation, so that the multi-point illumination or decoration effect of the single optical fiber can be obtained.
CN202110821819.4A 2021-07-19 2021-07-19 Method for realizing diversified illumination through fiber cladding design Pending CN113448007A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000800A1 (en) * 1982-08-09 1984-03-01 Space Lyte Int Optical distribution system including light guide
WO1990000699A1 (en) * 1988-07-14 1990-01-25 Aromac Co., Ltd. Surface light-emitting ornamental device using optical fibers
CN1218556A (en) * 1996-03-22 1999-06-02 不列颠哥伦比亚大学 Light guide employing multiplayer optical film
US6186649B1 (en) * 1998-04-16 2001-02-13 Honeywell International Inc. Linear illumination sources and systems
WO2002021177A1 (en) * 2000-09-08 2002-03-14 Lumenyte International Corporation Optical conduit
CN2733382Y (en) * 2004-09-30 2005-10-12 四川汇源光通信股份有限公司 Falling star optical fibre
US20060133750A1 (en) * 2004-12-20 2006-06-22 Jean-Hway Lee Light petal generation structure for optical fibers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000800A1 (en) * 1982-08-09 1984-03-01 Space Lyte Int Optical distribution system including light guide
WO1990000699A1 (en) * 1988-07-14 1990-01-25 Aromac Co., Ltd. Surface light-emitting ornamental device using optical fibers
CN1218556A (en) * 1996-03-22 1999-06-02 不列颠哥伦比亚大学 Light guide employing multiplayer optical film
US6186649B1 (en) * 1998-04-16 2001-02-13 Honeywell International Inc. Linear illumination sources and systems
WO2002021177A1 (en) * 2000-09-08 2002-03-14 Lumenyte International Corporation Optical conduit
CN2733382Y (en) * 2004-09-30 2005-10-12 四川汇源光通信股份有限公司 Falling star optical fibre
US20060133750A1 (en) * 2004-12-20 2006-06-22 Jean-Hway Lee Light petal generation structure for optical fibers

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Application publication date: 20210928

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