Abstract: Provided is a member for an electricity storage device and an electricity storage device in each of which alkali metal ions are used as carrier ions and which can improve charge/discharge characteristics. A member for an electricity storage device includes: a solid electrolyte layer 2 containing an alkali metal ion-conducting solid electrolyte; an alkali metal layer 3 laid on the solid electrolyte layer 2 and containing an alkali metal; and an electrode layer laid on the alkali metal layer 3 and containing a material capable of absorbing and releasing alkali metal ions.

Abstract: Provided are a method for manufacturing a wavelength conversion member that can suppress the reaction between inorganic nanophosphor particles and glass to suppress the deterioration of the inorganic nanophosphor particles, and the wavelength conversion member. The method for manufacturing a wavelength conversion member according to the present invention includes the steps of: forming inorganic protective films 5 on surfaces of inorganic nanophosphor particles 1; and mixing the inorganic nanophosphor particles 1 having the inorganic protective films 5 formed thereon with glass powder and firing a resultant mixture in a temperature range where the inorganic protective films 5 survive.

Abstract: Provided is a wavelength conversion member capable of reducing the decrease in luminescence intensity with time and the melting of a component material when irradiated with light of a high-power LED or LD and providing a light emitting device using the wavelength conversion member. The wavelength conversion member (11) includes a laminate that includes: a phosphor layer (1); and light-transmissive heat dissipation layers (2) formed on both surfaces of the phosphor layer (1) and having a higher thermal conductivity than the phosphor layer (1).

Abstract: A light source using a wavelength conversion member is increased in brightness. A wavelength conversion element 11 includes a plurality of wavelength conversion members 12 bundled together, each containing a dispersion medium and phosphor powder dispersed in the dispersion medium.

Abstract: Provided is a light-emitting device with quantum dots that has a small in-plane variation in luminescence intensity. A light-emitting device (1) includes a light-emitting part (11), a cell (10), a light source (12), and an incident light scatting part. The light-emitting part (11) contains quantum dots. The cell (10) encapsulates the light-emitting part (11). The light source (12) emits light at a wavelength exciting the quantum dots to the light-emitting part (11). The incident light scatting part is disposed between the light source (12) and the light-emitting part (11). The incident light scatting part scatters light incident on the light-emitting part (11).

Abstract: Provided is a wavelength conversion member that can improve the color balance of emitted light.

Abstract: Provided is a glass cell in which the thickness of the interior space has high uniformity. A glass cell (1) includes first and second glass sheets (11, 12) and an intermediate sheet (13). The first and second glass sheets (11, 12) are disposed to face each other at a distance. The intermediate sheet (13) is disposed between the first glass sheet (11) and the second glass sheet (12). The intermediate sheet (13) includes an opening (13a). A surface of the intermediate sheet (13) next to the first glass sheet (11) or a surface of the first glass sheet (11) next to the intermediate sheet (13) is made of metal and a surface of the intermediate sheet (13) next to the second glass sheet (12) or a surface of the second glass sheet (12) next to the intermediate sheet (13) is made of metal.

Abstract: Provided is a process for producing a wavelength conversion member which can suppress the reaction between inorganic nanophosphor particles and glass to suppress the deterioration of the inorganic nanophosphor particles, and the wavelength conversion member. The process for producing a wavelength conversion member includes the steps of: preparing inorganic nanophosphor particles 1 with an organic protective film formed on respective surfaces thereof; and mixing the inorganic nanophosphor particles 1 with glass powder and firing a resultant mixture in a temperature range where the organic protective films remain as retained films 3.

Abstract: Provided is a liquid crystal lens having low wavefront aberration. A liquid crystal lens (1) includes a liquid crystal layer (11), a first electrode (21), a second electrode (22), and a third electrode (23). The first electrode (21) is provided with an opening (21a) and a communicating cutout (21b) formed therein, the communicating cutout (21b) allowing the opening (21a) to communicate with the outside. The second electrode (22) includes a main electrode portion (22a) and a linear leading electrode portion (22b). The main electrode portion (22a) is disposed within the opening (21a). The main electrode portion (22a) is electrically insulated from the first electrode (21). The leading electrode portion (22b) is electrically connected to the main electrode portion (22a). The leading electrode portion (22b) is disposed within the communicating cutout (21b). The third electrode (23) faces at least part of the first and second electrodes (21, 22).

Abstract: Provided is a method that can manufacture a light-emitting device in which quantum dot is used and which has a high luminous efficiency. A light-emitting device (1) is manufactured that includes: a cell (10) including first and second glass plates (11, 12) facing and spaced apart from each other; and quantum dot (17) encapsulated in the cell (10). Prior to the encapsulation of the quantum dot (17), a reduction step of reducing moisture adsorbed on the inside walls of the cell (10) is performed.

Abstract: A light source using a wavelength conversion member is increased in brightness. A wavelength conversion element 11 includes a plurality of wavelength conversion members 12 bundled together, each containing a dispersion medium and phosphor powder dispersed in the dispersion medium.

Abstract: Provided is a wavelength conversion member capable of reducing the decrease in luminescence intensity with time and the melting of a component material when irradiated with light of a high-power LED or LD and providing a light emitting device using the wavelength conversion member. The wavelength conversion member (11) includes a laminate that includes: a phosphor layer (1); and light-transmissive heat dissipation layers (2) formed on both surfaces of the phosphor layer (1) and having a higher thermal conductivity than the phosphor layer (1).

Abstract: A light source using a wavelength conversion member is increased in brightness. A wavelength conversion element 11 includes a plurality of wavelength conversion members 12 bundled together, each containing a dispersion medium and phosphor powder dispersed in the dispersion medium.

Abstract: Provided is a light-emitting device with quantum dots that has a small in-plane variation in luminescence intensity. A light-emitting device (1) includes a light-emitting part (11), a cell (10), a light source (12), and an incident light scatting part. The light-emitting part (11) contains quantum dots. The cell (10) encapsulates the light-emitting part (11). The light source (12) emits light at a wavelength exciting the quantum dots to the light-emitting part (11). The incident light scatting part is disposed between the light source (12) and the light-emitting part (11). The incident light scatting part scatters light incident on the light-emitting part (11).

Abstract: Provided is a liquid crystal element of low drive voltage and high response speed. A liquid crystal element (1) includes a liquid crystal layer (11), first and second electrodes (21, 22), a high-resistivity layer (41), and an inorganic dielectric layer (42). The first and second electrodes (21, 22) are operable to apply voltage to the liquid crystal layer (11). The high-resistivity layer (41) is interposed between either one (21) of the first and second electrodes (21, 22) and the liquid crystal layer (11). The inorganic dielectric layer (42) is interposed between the high-resistivity layer (41) and the liquid crystal layer (11).

Abstract: Provided is a method that can manufacture a light-emitting device in which quantum dot is used and which has a high luminous efficiency. A light-emitting device (1) is manufactured that includes: a cell (10) including first and second glass plates (11, 12) facing and spaced apart from each other; and quantum dot (17) encapsulated in the cell (10) . Prior to the encapsulation of the quantum dot (17), a reduction step of reducing moisture adsorbed on the inside walls of the cell (10) is performed.

Abstract: Provided is a liquid-crystal lens with low wavefront aberration. A liquid-crystal lens (1) includes a liquid crystal layer (11), a first electrode (21), a second electrode (22), and a high-resistivity layer (41). The first electrode (21) includes: a first electrode portion (21a) including a circular opening (21a1) and a communicating cutout (21a2) formed therein, the communicating cutout (21a2) allowing the circular opening (21a1) to communicate with the outside; and a second electrode portion (21b) including a circular main electrode portion (21b1) disposed within the opening (21a1) and a leading electrode portion (21b2) connected to the main electrode portion (21b1) and disposed within the communicating cutout (21a2). The second electrode (22) faces the first electrode (21) with the liquid crystal layer (11) in between. The high-resistivity layer (41) is disposed between at least the second electrode portion (21b) of the first electrode (21) and the liquid crystal layer (11).

Abstract: An object of the present invention is to provide a liquid-crystal lens having excellent imaging performance. A liquid-crystal lens (1) according to the present invention includes a first liquid-crystal layer (11), a second liquid-crystal layer (12), a third liquid-crystal layer (13), and a fourth liquid-crystal layer (14) which are arranged in this order along an optical axis (C). The first liquid-crystal layer (11) and the second liquid-crystal layer (12) are 90° different in alignment direction from each other in a plane perpendicular to the optical axis (C). The first liquid-crystal layer (11) and the fourth liquid-crystal layer (14) are 180° different in alignment direction from each other in the plane perpendicular to the optical axis (C). The second liquid-crystal layer (12) and the third liquid-crystal layer (13) are 180° different in alignment direction from each other in the plane perpendicular to the optical axis (C).

Abstract: Provided is a liquid crystal lens having low wavefront aberration. A liquid crystal lens (1) includes a liquid crystal layer (11), a first electrode (21), a second electrode (22), and a third electrode (23). The first electrode (21) is provided with an opening (21a) and a communicating cutout (21b) formed therein, the communicating cutout (21b) allowing the opening (21a) to communicate with the outside. The second electrode (22) includes a main electrode portion (22a) and a linear leading electrode portion (22b). The main electrode portion (22a) is disposed within the opening (21a). The main electrode portion (22a) is electrically insulated from the first electrode (21). The leading electrode portion (22b) is electrically connected to the main electrode portion (22a). The leading electrode portion (22b) is disposed within the communicating cutout (21b). The third electrode (23) faces at least part of the first and second electrodes (21, 22).

Abstract: Provided is a liquid-crystal lens with low wavefront aberration. A liquid-crystal lens (1) includes a liquid crystal layer (11), a first electrode (21), a second electrode (22), and a high-resistivity layer (41). The first electrode (21) includes: a first electrode portion (21a) including a circular opening (21a1) and a communicating cutout (21a2) formed therein, the communicating cutout (21a2) allowing the circular opening (21a1) to communicate with the outside; and a second electrode portion (21b) including a circular main electrode portion (21b1) disposed within the opening (21a1) and a leading electrode portion (21b2) connected to the main electrode portion (21b1) and disposed within the communicating cutout (21a2). The second electrode (22) faces the first electrode (21) with the liquid crystal layer (11) in between. The high-resistivity layer (41) is disposed between at least the second electrode portion (21b) of the first electrode (21) and the liquid crystal layer (11).