# US 2015/0085334 A1 · Method for controlling optical transmissions, device for controlling optical transmissions, and method for manufacturing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2015/0085334 A1 - Document ID: US20150085334A1 - Status: Published application - Kind: A1 - Application number: 14/373,364 - Filed: 2013-01-11 - Published: 2015-03-26 - Earliest claimed: 2012-01-20 - Assignees: Nanobrick Co., Ltd. - Applicants: Nanobrick Co., Ltd. - Inventors: Jae Hyun Joo - Web page: https://patentgrep.com/patent/US20150085334A1 ## CPC - G02B 26/005: {based on electrowetting} - G02B 5/201: {in the form of arrays} - G02B 26/004: {based on a displacement or a deformation of a fluid} - G02B 26/02: for controlling the intensity of light {(G02B26/004 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract According to the method for controlling optical transmissions according to the present invention, in a state where particles formed of a light-blocking material, a first solvent with electro-wetting properties in which the particles are dispersed, and a second solvent which is not mixed with the first solvent are present in a space covered by an optical incident surface, the particles are mixed with the first solvent but not mixed with the second solvent, and an electric field applied to the first solvent is controlled so as to control the blocking area of the first solvent with respect to the optical incident surface and control optical transmittance. ## Claims ### Claim at position 1 1-12. (canceled) ### Claim 13 A device for adjusting light transmission, comprising: charged particles composed of a light blocking material; a first solvent in which the particles are dispersed; and a second solvent not being mixed with the first solvent, wherein the particles are mixed with the first solvent but are not mixed with the second solvent, and wherein light transmittance is adjusted by adjusting an electric field applied to the particles to move the particles and moving the first solvent together with the particles using a difference in movement resistance at an interface between the particles and the first solvent and that at an interface between the first solvent and the second solvent to control a blocking area of the first solvent with respect to a light incident surface. ### Claim 14 A device for adjusting light transmission, comprising: charged particles composed of a light blocking material; a first solvent having an electrowetting property in which the particles are dispersed; and a second solvent not being mixed with the first solvent, wherein the particles are mixed with the first solvent but are not mixed with the second solvent, and wherein light transmittance is adjusted by adjusting an electric field applied to the first solvent to control a blocking area of the first solvent with respect to a light incident surface, and by adjusting an electric field applied to the particles to move the particles and moving the first solvent together with the particles using a difference in movement resistance at an interface between the particles and the first solvent and that at an interface between the first solvent and the second solvent to control a blocking area of the first solvent with respect to the light incident surface. ### Claim at position 4 15-26. (canceled) ### Claim 27 A device for adjusting light transmission, comprising: charged particles composed of a light blocking material; and a first solvent in which the particles are dispersed, wherein light transmittance is adjusted by adjusting an electric field applied to the particles to move the particles and moving the first solvent together with the particles using movement resistance at an interface between the particles and the first solvent to control a blocking area of the first solvent with respect to a light incident surface. ### Claim 28 A device for adjusting light transmission, comprising: charged particles composed of a light blocking material; and a first solvent having an electrowetting property in which the particles are dispersed, wherein light transmittance is adjusted by adjusting an electric field applied to the first solvent to control a blocking area of the first solvent with respect to a light incident surface, and by adjusting an electric field applied to the particles to move the particles and moving the first solvent together with the particles using movement resistance at an interface between the particles and the first solvent to control a blocking area of the first solvent with respect to the light incident surface. ### Claim at position 7 29-30. (canceled) ### Claim 31 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the first solvent and the second solvent is composed of a light transmitting material. ### Claim 32 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the first solvent and the second solvent is composed of a light transmitting material. ### Claim 33 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the particles and the first solvent are hydrophilic and the second solvent is hydrophobic, or the particles and the first solvent are hydrophobic and the second solvent is hydrophilic. ### Claim 34 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the particles and the first solvent are hydrophilic and the second solvent is hydrophobic, or the particles and the first solvent are hydrophobic and the second solvent is hydrophilic. ### Claim 35 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the particles and the first solvent are polar and the second solvent is non-polar, or the particles and the first solvent are non-polar and the second solvent is polar. ### Claim 36 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the particles and the first solvent are polar and the second solvent is non-polar, or the particles and the first solvent are non-polar and the second solvent is polar. ### Claim 37 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the movement resistance at the interface between the particles and the first solvent is larger than that at the interface between the first solvent and the second solvent. ### Claim 38 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the movement resistance at the interface between the particles and the first solvent is larger than that at the interface between the first solvent and the second solvent. ### Claim 39 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the particles, the first solvent and the second solvent are encapsulated by capsules composed of a light transmitting material. ### Claim 40 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the particles, the first solvent and the second solvent are encapsulated by capsules composed of a light transmitting material. ### Claim 41 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the particles, the first solvent and the second solvent are partitioned by cells composed of an insulating material. ### Claim 42 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the particles, the first solvent and the second solvent are partitioned by cells composed of an insulating material. ### Claim 43 (depends on 13) A device for adjusting light transmission according to any one of claim 13, wherein after the electric field is applied to the particles, the first solvent and the second solvent, an electric field in the opposite direction of the electric field or an alternating-current electric field is applied to reset an arrangement of the particles, the first solvent and the second solvent. ### Claim 44 (depends on 14) A device for adjusting light transmission according to any one of claim 14, wherein after the electric field is applied to the particles, the first solvent and the second solvent, an electric field in the opposite direction of the electric field or an alternating-current electric field is applied to reset an arrangement of the particles, the first solvent and the second solvent. ### Claim 45 (depends on 13) A device for adjusting light transmission according to claim 13, wherein the light transmittance is adjusted by adjusting at least one of an intensity, direction, application time, number of times of application, and application period of the electric field. ### Claim 46 (depends on 14) A device for adjusting light transmission according to claim 14, wherein the light transmittance is adjusted by adjusting at least one of an intensity, direction, application time, number of times of application, and application period of the electric field.