# US 2014/0153215 A1 · Illuminating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153215 A1 - Document ID: US20140153215A1 - Status: Published application - Kind: A1 - Application number: 13/992,218 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Empire Technology Development LLC - Inventors: Hidekazu Hayama - Web page: https://patentgrep.com/patent/US20140153215A1 ## CPC - G02B 1/045: {Light guides} - B29D 11/00663: {Production of light guides} - G02B 6/0003: {the light guides being doped with fluorescent agents} - G02B 6/0035: {provided on the surface of the light guide or in the bulk of it} - G02B 6/0068: {Arrangements of plural sources, e.g. multi-colour light sources} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) ## Abstract An illuminating device is configured to include a light guide structure having a first light source configured to emit light of a first wavelength to excite at least one red fluorescent transparent substance; a second light source configured to emit light of a second wavelength to excite at least one green fluorescent transparent substance; and a third light source configured to emit light of a third wavelength to excite at least one blue fluorescent transparent substance. ## Claims ### Claim 1 An illuminating device comprising: a light guide structure having a transparent member containing at least one red fluorescent transparent substance, at least one green fluorescent transparent substance, and at least one blue fluorescent transparent substance; a first light source configured to emit light of a first wavelength to excite the at least one red fluorescent transparent substance; a second light source configured to emit light of a second wavelength to excite the at least one green fluorescent transparent substance, wherein the green fluorescent transparent substance includes a terbium complex; and a third light source configured to emit light of a third wavelength to excite the at least one blue fluorescent transparent substance. ### Claim 2 (depends on 1) The illuminating device of claim 1, wherein the first, second, and third wavelengths are different from one another. ### Claim 3 (depends on 1) The illuminating device of claim 1, wherein the red, green, and blue fluorescent transparent substances are combined to enable the transparent member to emit white light in response to the light of the first, second, and third wavelengths. ### Claim 4 (depends on 1) The illuminating device of claim 1, wherein the red fluorescent transparent substance includes a europium complex. ### Claim 5 (depends on 4) The illuminating device of claim 4, wherein the europium complex includes a europium ion and at least one chemical compound having a phosphate group coordinated to the europium ion. ### Claim 6 (depends on 5) The illuminating device of claim 5, wherein the chemical compound having a phosphate group is selected from the group including: trimethyl phosphate, triethyl phosphate, tri-n-butyl phosphate, triphenyl phosphate and tritolyl phosphate. ### Claim 7 (canceled) ### Claim 8 (depends on 17) The illuminating device of claim 17, wherein the terbium complex includes a terbium ion and at least one chemical compound having a phosphate group coordinated to the terbium ion. ### Claim 9 (depends on 8) The illuminating device of claim 8, wherein the chemical compound having a phosphate group is selected from the group including: trimethyl phosphate, triethyl phosphate, tri-n-butyl phosphate, triphenyl phosphate and tritolyl phosphate. ### Claim 10 (depends on 1) The illuminating device of claim 1, wherein the blue fluorescent transparent substance is selected from the group including: fluorescent organic dyes, bis-(triazinylamino-) stilbenedisulfonic acid derivative, bis biphenyl derivative, 9,10-Dibrmanthrace, bis-(triazinylamino-)stilbenedisulfonic acid derivative, bis stilbiphenyl derivative, 2,5-bis(5-tert-butyl-2-benzoxazolyl)thiophene, tris(2-(2,4-difluorophenyl) pyridinate) iridium(III), bis(2-(2,4-difluorophenyl) pyridinate) picolinic acid iridium(III), tris(3,4,7,8-tetramethyl-1,10-phenantrolinato) iridium(III), and tris(2,9-dimethyl-4,7-diphenyl-1,10-phenanthrolinato) iridium(III). ### Claim 11 (depends on 1) The illuminating device of claim 1, further comprising a reflection layer arranged on one side of the transparent member. ### Claim 12 (depends on 1) The illuminating device of claim 1, wherein a ratio of the red fluorescent transparent substance to a combination of the red, green, and blue fluorescent transparent substances is greater than about 25% but less than about 65% by weight; a ratio of the green fluorescent transparent substance to the combination of the red, green, and blue fluorescent transparent substances is greater than about 20% but less than about 60% by weight; and a ratio of the blue fluorescent transparent substance to the combination of the red, green, and blue fluorescent transparent substances is greater than 0% but less than about 40% by weight. ### Claim 13 A light guide structure comprising: a transparent member containing at least one red fluorescent transparent substance capable of being excited at a first excitation wavelength, at least one green fluorescent transparent substance capable of being excited at a second excitation wavelength, wherein the green fluorescent transparent substance includes a terbium complex including a terbium ion and at least one chemical compound having a phosphate group coordinated to the terbium ion, and at least one blue fluorescent transparent substance capable of being excited at a third excitation wavelength. ### Claim 14 A method of manufacturing a transparent fluorescent substance for white light emission, the method comprising: providing at least one red fluorescent transparent substance capable of being excited at a first excitation wavelength; providing at least one green fluorescent transparent substance capable of being excited at a second excitation wavelength; providing at least one blue fluorescent transparent substance capable of being excited at a third excitation wavelength; and combining the red, green, and blue fluorescent transparent substances to form a mixture of the red, green, and blue fluorescent transparent substances that emits white light in response to applied light of the first, second, and third excitation wavelengths, wherein a ratio of the red fluorescent transparent substance to the mixture is greater than about 25% but less than about 65% by weight, a ratio of the green fluorescent transparent substance to the mixture is greater than about 20% but less than about 60% by weight, and a ratio of the blue fluorescent transparent substance to the mixture is greater than 0% but less than about 40% by weight. ### Claim 15 (canceled) ### Claim 16 (depends on 14) The method of claim 14, further comprising: adding a monomer to the mixture; and polymerizing the monomer to produce a transparent member that emits the white light in response to the applied light. ### Claim 17 (depends on 14) The method of claim 14, further comprising: adding a polymer solution to the mixture; and evaporating a solvent from the polymer solution to produce a transparent member that emits the white light in response to the applied light. ### Claim 18 (depends on 14) The method of claim 14, further comprising: combining the mixture with a dissolved polymer to produce a transparent member that emits the white light in response to the applied light. ### Claim 19 A method of generating white light, the method comprising: emitting light of a first wavelength from a first light source; emitting light of a second wavelength from a second light source; emitting light of a third wavelength from a third light source; and guiding the light of the first, second, and third wavelengths to a light guide structure having a transparent member containing at least one red fluorescent transparent substance capable of being excited at the first wavelength, wherein the red fluorescent transparent substance includes a europium complex including a europium ion and at least one chemical compound having a phosphate group coordinated to the europium ion, at least one green fluorescent transparent substance capable of being excited at the second wavelength, wherein the green fluorescent transparent substance includes a terbium complex including a terbium ion and at least one chemical compound having a phosphate group coordinated to the terbium ion, and at least one blue fluorescent transparent substance capable of being excited at the third wavelength. ### Claim 20 (depends on 19) The method of claim 19, wherein emission of red light from the at least one red fluorescent transparent substance, emission of green light from the at least one green fluorescent transparent substance, and emission of blue light from the at least one blue fluorescent transparent substance are combined to produce the white light.