Asahi Glass Company, Limited

Agc Inc.

Kenta Sekikawa

Yukihiro Tao

Yuriko Kaida

Makoto Hasegawa

Hiroshi Shimoda

Hiroshi Kumai

Satoshi Kashiwabara

Hitoshi Tsujimura

Takashi Shibuya

Hiroyuki Arishima

Mitsuo Osawa

Yuko Tachibana

Kenichi Ebata

So Ishido

Katsushi Kamijyo

Hiromichi Nagayama

Yoko Mitsui

Yasushi Kawamoto

Masamichi Ide

An optical element includes a three-dimensional structure having a curved surface; and a retardation plate bent along the curved surface. The retardation plate includes a transparent substrate and a liquid crystal layer formed over the transparent substrate. The retardation plate has a slow axis and a fast axis. A glass-transition temperature, Tgne, in a slow axis direction of the retardation plate is higher than a glass-transition temperature, Tgno, in a fast axis direction of the retardation plate.

Optical element and method for manufacturing the same

A reflective transparent screen () capable of displaying an image light projected from a projector as an image to an observer who is on the same side as the projector, is provided with two transparent substrates and a metal thin film () sandwiched therebetween, wherein the color tone of the image light reflected from the metal thin film () or the image visibility is improved by adjusting the metallic composition of the metal thin film ().

Reflective transparent screen having metal alloy thin film and concavo-convex structure

A transparent screen sheet that displays images projected from a front side of the transparent screen sheet and/or a rear side of the transparent screen sheet to a user on the front side, and causes the user on the front side to view a rear background behind the rear side. The transparent screen sheet includes an image display layer configured to display the images; and a resin film that holds the image display layer. A difference between a maximum value and a minimum value of retardations of the resin film measured by irradiating a main surface of the resin film with a light with a wavelength of 460 nm in a direction orthogonal to the main surface, within a region on the main surface that overlaps with the image display layer, is one fourth of the wavelength of the light or less.

Transparent screen sheet, transparent screen, and image display system

To provide an image projecting structure having a wide viewing angle and whereby the visibility of a projected image is high. The image projecting structure comprises a first transparent layer having irregularities formed on its surface, a reflective film formed on the surface on which the irregularities are formed, of the first transparent layer, and a second transparent layer formed on the reflective film, wherein the transmittance of visible light is from 5 to 95%; the value obtained by dividing the haze by the diffuse reflectance of visible light is at least 0.1 and at most 1; the vertical difference Sk in the core section defined by ISO 25178, of the surface on which the irregularities are formed, is at least 0.1 &#x3bc;m; and the value obtained by dividing the shortest autocorrelation length Sal by the vertical difference Sk in the core section is at least 1.2 and at most 190.

Image projecting structure and image projecting method

A video projecting structure includes a substrate having a visible light transmittance greater than or equal to 5% and less than or equal to 90%, a reflectivity greater than or equal to 5% and less than or equal to 90%, and a front haze less than or equal to 30.

Video projecting structure, method for manufacturing video projecting structure, video projecting method, and automobile window

To provide a transmission-type transparent screen which is excellent in the see-through property for a scene on the other side of the transparent screen as viewed from an observer in a state where no image-forming light is projected from a projector and which is excellent in visibility of an image displayed on the transparent screen as viewed from the observer in a state where image-forming light is projected from the projector, as well as an image display system and an image display method, employing the transparent screen. A transmission-type transparent screenwhich has a first surface A and a second surface B on the opposite side thereof and which has a light scattering layercomprising a transparent resinand a light scattering material, wherein the light scattering layerfurther contains a light absorbing material, the haze is from 3 to 30%, the total light transmittance is from 15 to 95%, and the diffuse reflectance is from 0.1 to 2.4%.

Transmission-type transparent screen, image display system and image display method

A video projecting structure includes a substrate having a visible light transmittance greater than or equal to 5% and less than or equal to 90%, a front haze greater than or equal to 4 and less than or equal to 40, and a rear haze greater than or equal to 0 and less than or equal to 60. In a case where light is incident on a surface of the substrate at an angle of 45&#xb0;, an intensity of a backward scattering light is lower than an intensity of a frontward scattering light.

Video projecting structure, video projecting method, and video projecting window

The present invention relates to an optical filter, a solid-state imaging element and an imaging device lens which contain a near infrared ray absorbing layer having a specific near infrared ray absorbing dye dispersed in a transparent resin having a refractive index of 1.54 or more, and also relates to an imaging device containing the solid-state imaging element or the imaging device lens. The near infrared ray absorbing layer has a transmittance of visible light of from 450 to 600 nm of 70% or more, a transmittance of light in a wavelength region of from 695 to 720 nm of not more than 10%, and an amount of change of transmittance of not more than &#x2212;0.8.

Optical filter, solid-state imaging element, imaging device lens and imaging device

An optical filter including a near infrared absorbing layer on a glass substrate, in which adhesiveness between the glass substrate and the near infrared absorbing layer is firm, high reliability is enabled in uses under a high temperature and high humidity environment, and manufacturing yield is secured, and a high reliability solid-state imaging device having the optical filter are provided. An optical filter includes: a glass substrate; and a near infrared absorbing layer formed on one principal surface of the glass substrate, wherein the near infrared absorbing layer is obtained by reacting a composition for forming the near infrared absorbing layer on the glass substrate and the composition contains a transparent resin having a fluorene skeleton and a reactivity group; a near infrared absorbing dye; and a silane coupling agent and/or oligomer thereof having a hydrolyzable group and a functional group which have reactivity for the reactivity group.

Growing community of inventors

Chiyoda-ku, Japan

Kenta Sekikawa