Fuji Photo Film Company, Limited

Hanayama International Trading Limited

Keiichi Miyazaki

Mikio Ihama

Shunji Takada

Mitsuo Saitou

Yoichi Maruyama

Masaaki Miki

Tsutomu Arai

Toshiyuki Nabeta

Yasushi Tanabe

Norihiro Omae

An object is to provide, in place of a cube toy such as Yoshimoto Cube, a wide variety of playing patterns, playing patterns which cannot be predicted in terms of change in forms, a polyhedral toy which can be enjoyed in terms of change in form even when only one polyhedral toy is used, and a polyhedral toy having extensibility for achieving a wide variety of contents of play through combination of two or more polyhedral toys. Therefore, when a polyhedral piece (U) forming the toy is formed with three quadrangular pyramids (Gto G) having, among six triangular faces (Tto T) of a cube (R), three faces (Rto R) as bottom faces, the polyhedral piece (U) includes a triangle surface () formed of six triangular faces (Tto T) other than respective side faces of the quadrangular pyramids (Gto G) placed on one another. When polyhedral pieces (Uto U) each having the configuration described above form a toy () unfolded into a cuboid shape of two rows and four columns as illustrated in FIG., in plan view on a top face of the toy (), in each of the first row and the second row, the triangle surface (), the third face (R), the third face (R), and the triangle surface () are arranged in the stated order.

Polyhedral toy

A photonic crystal manufacturing method exposes two or more silver halide particle layers that contain silver halide particles which have different spectral sensitivity characteristics for each of the silver halide particle layers to light having wavelengths corresponding to the respective different spectral sensitivity characteristics, and then develops the exposed silver halide particle layers to form therein a periodic structure with an aggregate of developed silver. Photonic crystals can be manufactured with relative ease in a relatively short period of time. This method assures continued high accuracy.

Method of manufacturing photonic crystal

An optical film containing an anti-glare layer having irregularities on a surface thereof, wherein the irregularities are arranged such that the value of NN determined by the sequence of the following steps is 1,000 or less: dividing the irregular surface of the optical film into 10,000 planes; calculating, for each divided plane, the standard deviation D of the distance between positions where adjacent high or low spots have peaks; determining the mean value M for the values of the standard deviation D; and determining the number NN of divided planes for which the value of the standard deviation D is 50% of the mean value M or lower; and, wherein the frequency at which the angle of inclination to the regular reflecting plane as measured with an aperture of two square microns is 0.5 or less degrees is 2% or lower.

Optical film containing anti-glare layer and image display apparatus using the same

The method of compressing a multi-spectral image formed of a plurality of elemental images having different spectral distribution ranges calculates an average image and a superior average image by averaging two elemental images and two inferior average images having respective spectral distribution ranges close to each other, respectively. The method calculates finally a superlative average image of all the elemental images by hierarchically repeating the calculating step. Next, the method creates differential images between all the elemental images and the respective average images and between the inferior average images and the respective superior average and calculates compressed differential images by compressing the differential images. The method records the superlative average image and the compressed differential images so as to take a hierarchical structure with the superlative average image being positioned at a top. The method is capable of preferably compressing the multi-spectral image while making use of characteristics thereof and grasping an entire configuration of the image without a necessity for observing all elemental images.

Method of compressing multi-spectral image

A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains, in the dispersion medium phase of the emulsion, one or more kinds of inorganic fine particles having a refractive index the total weight of the fine particles contained in the unit volume of the dispersion medium phase is from 1.0 to 95 wt %, the dispersion medium phase containing the fine particles is substantially transparent to the photosensitive peak wavelength light of the emulsion layer, and the photographic material is exposed and processed in the development process comprising at least a developing step and a fixing step.

Growing community of inventors

Kanagawa, Japan

Keiichi Miyazaki