摘要:
A planar light source, Fresnel lens sheet, and louver are disposed in the stated order in a light source apparatus. The Fresnel lens sheet deflects and focuses in one dimension light that has entered from the planar light source. The louver is disposed in the optical path of the light emitted from the Fresnel lens sheet, and the directivity of the light can be increased by restricting the traveling direction of the light to the focal direction of the Fresnel lens sheet. The light utilization ratio can thereby be increased, the directivity of planarly emitted light can be increased, and the brightness can be made uniform at the point of observation.
摘要:
A photopolymerizable composition comprising a polymerizable compound and a photopolymerization initiator, wherein the polymerizable compound is characterized by comprising (a) a bifunctional (meth)acrylic acid (thio)ester compound containing a sulfur atom in the molecule and (b) at least one of a (meth)acrylic acid ester compound represented by the general formula (1) or a bifunctional (meth)acrylic acid ester compound having a urethane linkage: wherein R1 and R2 are each independently a hydrogen atom or a methyl group; R3 and R4 are each independently an alkyl group, an aralkyl group, an aryl group or a halogen atom; m and n are each an integer of 0 to 2; X1 is an alkylidene group having 1 to 3 carbon atoms; and Y1 and Y2 are each independently a poly(oxyalkylene) group with the proviso that at least one of Y1 and Y2 is a poly(oxyalkylene) group having a hydroxy group.
摘要翻译:一种包含可聚合化合物和光聚合引发剂的可光聚合组合物,其中所述可聚合化合物的特征在于包含(a)分子中含有硫原子的双官能(甲基)丙烯酸(硫代)酯化合物和(b)至少一种 由通式(1)表示的(甲基)丙烯酸酯化合物或具有氨基甲酸酯键的双官能(甲基)丙烯酸酯化合物:其中R 1和R 2 SUB >各自独立地为氢原子或甲基; R 3和R 4各自独立地为烷基,芳烷基,芳基或卤素原子; m和n分别为0〜2的整数。 X 1是具有1至3个碳原子的亚烷基; 和Y 1和Y 2 2各自独立地是聚(氧化烯)基团,条件是Y 1和Y 3中的至少一个 > 2 sub>是具有羟基的聚(氧化烯)基团。
摘要:
Light emitted from a light source and incident on a light distributor of a light guide plate is partially emitted from the light guide plate as it is, and is predominantly reflected toward a prism section. Light incident on the prism section from the light distributor and light incident on the prism section directly from the light source are refracted and reflected by the prism section, and are then emitted from a light emission plane of the light guide plate in a region away from the light source in which the light distributor is not disposed, in a direction perpendicular to the light emission plane and substantially away from light source.
摘要:
An acrylic ester compound represented by the general formula (1): wherein, R1 and R2 represent independently a hydrogen atom, an alkyl group which may have a substituent, an aromatic alkyl group which may have a substituent or an aromatic residue which may have a substituent, respectively; R3 represents a hydrogen atom or an alkyl group; A represents a divalent organic group; and X represents a sulfur atom or an oxygen atom; provided that when X is an oxygen atom, R1 represents an aromatic residue that may have a substituent, a polymerizable composition comprising the compound, and a cured article and optical components obtained by polymerizing the polymerizable composition.
摘要:
The present invention provides a dyed molded article obtained by dyeing a polycarbonate molded article having repeating structural units represented by the following formula (1-a): Since the polycarbonate molded article is dyed easily, the present invention has made it possible to provide a lens made of a dyed polycarbonate.
摘要:
A sulfur-containing O-(meth)acrylate compound of the following formula (1) is useful as a starting material for a resin composition used in optical applications such as a lens; wherein R represents hydrogen atom or methyl group; l represents an integer from 1 to 3; B is ##STR1## when B is ##STR2## n is 2; m is 1 or 2; A is selected from the following groups: ##STR3## wherein m represents 1 or 2; each ring may be substituted by one or more alkyl, alkylthio or alkoxy groups having 1 or 2 carbon atoms; p and q are 0 or 1, while m is 1 when p is 1;when B is ##STR4## n is 1; m is 2 or 3; A is selected from the following groups:--(CH.sub.2).sub.r --S--(CH.sub.2).sub.r --,--(CH.sub.2).sub.r --S--S--(CH.sub.2).sub.r --,--(CH.sub.2).sub.r --S--(CH.sub.2).sub.s --S--(CH.sub.2).sub.r -- and ##STR5## wherein r and s are an integer from 1 to 3; when B is ##STR6## n is 1; m is 2; A is selected from the following groups:--(CH.sub.2).sub.r --S--(CH.sub.2).sub.r --,--(CH.sub.2).sub.r --S--S--(CH.sub.2).sub.r -- and--(CH.sub.2).sub.r --S--(CH.sub.2).sub.s --S--(CH.sub.2).sub.r --wherein r and s are an integer from 1 to 3.
摘要:
In an LCD projector, a color mixing optical system for mixing color beams transmitted through LCD elements includes an optical path length adjuster in three light paths from a light source to the LCD elements. The adjuster includes polarization beam splitters, phase plates, and light-beam reflectors. The numbers of reflections of the color beams in the optical paths from the light source to the projection lens are set only to odd values or only to even values. The adjusters are arranged and configured to equalize the respective optical path lengths to each other. With this configuration, the relative distribution of intensity of illumination is substantially equalized for the beams illuminating the respective LCD elements. Compounding the beams, there is attained a projected screen image with a satisfactory white balance and homogeneous chromaticity and luminance. Consequently, there is implemented an LCD projector capable of projecting on a screen an image having a favorable white balance and uniform chromaticity and luminance.
摘要:
A sulfur-containing O-(meth)acrylate compound of the following formula (1) is useful as a starting material for a resin composition used in optical applications such as a lens; ##STR1## wherein R represents hydrogen atom or methyl group; 1 represents an integer from 1 to 3; B is ##STR2## n is 1 or 2, m is 1, 2 or 3 and A is selected from certain arylene, aralkylene, thioether, dithioether or thiopheneylene radicals.
摘要:
In a projector comprising three image forming devices, disposed between a separation optical section and a combination optical section, for processing a red, a green, and a blue light beams, at least one of the three image forming devices comprises a polarization direction converting means, such as a halfwave plate for converting polarization direction for one of the red, the green, and the blue image light beams so that one of a color combining dichroic mirrors has a cutoff wavelength of spectral characteristic which shifts toward outside for one of the red, the green, and the blue central wavelengths from that of one of a color separating dichroic mirrors. The halfwave plate may be disposed in a light-leaving side of at least one of the three image forming devices.
摘要:
A novel polymerizable monomer represented by the formula (I) useful as a raw material for the high surface hardness transparent resin. ##STR1## wherein R is an aliphatic residue having or not having an oxygen atom, an alicyclic ring, a heterocyclic ring or an aromatic ring, or an alicyclic residue, l is 0 or 1, each of i and j is an integer of 1 or more, and when l=0, i=j=1, when l=1, (i+j) is 4 or less, when j=1, X is oxygen or sulfur, when j.gtoreq.2, all X's are oxygen or sulfur, or one X is oxygen and the other X's are sulfur, or one X is sulfur and the other X's are oxygen.The high surface hardness transparent resin comprises a crosslinked polymer prepared by copolymerizing a monomer (A) represented by the formula (I) as above and a monomer (B) containing one or more functional groups of at least one kind selected from the group consisting of CH.sub.2 .dbd.CH--C(O)--O--, CH.sub.2 .dbd.C(CH.sub.3)--C(O)--O-- and ##STR2##