Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/22—Absorbing filters
  • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B21/00—Microscopes
  • G02B21/16—Microscopes adapted for ultraviolet illumination ; Fluorescence microscopes
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/22—Absorbing filters
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/26—Reflecting filters
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/28—Interference filters
  • G02B5/281—Interference filters designed for the infrared light
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/24—Coupling light guides
  • G02B6/36—Mechanical coupling means
  • G02B6/38—Mechanical coupling means having fibre to fibre mating means
  • G02B6/3807—Dismountable connectors, i.e. comprising plugs
  • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
  • G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
  • G02B6/3861—Adhesive bonding
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
  • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
  • H04B1/02—Transmitters
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
  • H04B1/06—Receivers
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
  • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
  • H04B10/50—Transmitters
  • H04B10/501—Structural aspects
  • H04B10/506—Multiwavelength transmitters

Definitions

• Optical filters are employed in a wide variety of applications including optical communication systems, sensors, imaging, scientific and industrial optical equipment, and display systems.
• Optical filters often include optical layers that manage the transmission of incident electromagnetic radiation, including light.
• Optical filters may reflect or absorb and portion of incident light, and transmit another portion of incident light.
• Optical layers within an optical filter may differ in wavelength selectivity, optical transmittance, optical clarity, optical haze, index of refraction and various other properties.
• adhesive component can include a material(s) that provides adhesive properties as well as other components.
• adhesive component can include a material(s) that provides adhesive properties, a solvent or solvent system and additional components (e.g., processing aids, etc.).
• useful adhesive components can include acrylic based adhesives, polyurethane based adhesives, polyester based adhesives, polyolefin based adhesives, or silicone based adhesives for example.
• the adhesive can be curable via activation with energy, for example UV curable to trigger crosslinking of the adhesive. Alternatively, the adhesive may also be cured by heat or a combination of heat and actinic radiation.
• Illustrative dyes and pigment that can be useful as absorber components in disclosed wavelength transmission selective layers can include those that appear visibly black or colored but are transparent to NIR wavelengths. Visible dyes and colorants fall in one or more classes like Acid Dyes, Azoic coloring matters coupling components and Diazo components.
• Basic dyes include Developers, Direct dyes, Disperse dyes, Fluorescent brighteners, Food dyes, Ingrain dyes' Leather dyes, Mordant dyes' Natural dyes and pigments, Oxidation bases, Pigments, Reactive dyes, Reducing agents, Solvent dyes, Sulfur dyes, Condense sulfur dyes, Vat dyes.
• the amount of an absorber component in a composition or solution to form a wavelength transmission selective layer can depend on a number of factors, including for example the thickness which the adhesive layer will be formed, the particular absorber component, the particular adhesive component, other factors, and combinations thereof.
• the composition to form the wavelength transmission selective layer are coated relatively thick (e.g., about 2 mil (about 0.051 mm)) so that a relatively small amount of dye can be utilized.
• a composition having not less than 0.1 wt%, not less than 0.2 wt%, or not less than 0.5 wt% dye based on the total weight of the composition can be utilized.
• the wavelength transmission selective adhesive layers can be used proximate any component in an optical article.
• Such optical articles can be referred to as optical filters.
• FIGS. 1A-1E are lateral cross-sectional views of example articles including optical filters.
• FIG. IB shows a lateral cross-sectional view of example article 10b.
• Article 10b may include the substrate 12, the wavelength transmission selective layer 14, and a reflective layer 16. While reflective layer 16 is shown between the wavelength transmission selective layer 14 and the substrate 12 in article 10b, in examples, article 10b may not include the substrate 12, and the wavelength transmission selective layer may be disposed on the reflective layer 16.
• substrate 12 may include the reflective layer 16, for example, at a major surface or within an interior of substrate 12.
• the reflective layer 16 may be disposed below the substrate 12.
• the reflective layer 16 may be disposed above the substrate 12.
• the reflective layer 16 may be perforated.
• article 10b may reflect less than 50% of visible light, and transmit more than 50% of near-infrared light.
• light receiver 40 may include a near- infrared sensor.
• the light receiver 40 may include an object that receives light, for example, a solar cell, or an object that at least partially absorbs incident light, for example, a solar heater or any other object that receives light.
• the optical filter 10 may include any of the example optical filters including a wavelength transmission selective layer, as discussed above with reference to FIGS. 1A-1E, or other example optical filters described in the disclosure. As shown in FIG. 2A, the optical filter 10 may be disposed adjacent the light receiver 40.
• An incident near- infrared ray 42a may include a near-infrared wavelength, and may be substantially transmitted through the optical filter 10 to the light receiver 40.
• Example 1 Visibly absorbing, IR transparent pigment in UV curable adhesive on Optically Clear Substrate
• Example 14 Visibly absorbing, IR transparent pigment in UV curable adhesive on textured liner

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Electromagnetism (AREA)
• Chemical & Material Sciences (AREA)
• Analytical Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Optical Filters (AREA)

Priority Applications (3)

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Publications (1)

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Cited By (2)

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Citations (3)

Family Cites Families (20)

• 2018
  • 2018-11-06 US US16/652,998 patent/US20200264354A1/en not_active Abandoned
  • 2018-11-06 CN CN201880071977.9A patent/CN111316137B/zh active Active
  • 2018-11-06 JP JP2020524854A patent/JP2021501917A/ja active Pending
  • 2018-11-06 WO PCT/IB2018/058720 patent/WO2019092597A1/en not_active Ceased

Patent Citations (3)

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