53results about How to "Uniform conversion" patented technology

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article. A carbonyl compound is useful as a raw material for producing the polymerizable compound. (In the formula (I), Y1 to Y8 represent —C(═O)—O—, G1 and G2 represent a C1-20 divalent linear aliphatic group, Z1 and Z2 represent a C2-10 alkenyl group that is unsubstituted, or substituted with a halogen atom, Ax represents a C2-30 organic group with at least one aromatic ring, Ay represents a hydrogen atom or C1-20 alkyl group, A1 represents a trivalent aromatic group, A2 and A3 represent a C3-30 divalent alicyclic hydrocarbon group, A4 and A5 represent a C6-30 divalent aromatic group or the like, and Q1 represents a hydrogen atom.)

The invention relates to superfine Kaolin calcining process and device, the prodn, method includes; preheating kaolin raw powder material, then putting it in fluidization calcining furnace from the bottom, at same time, sending fuel into the furnace, preheated primary air is sent from plenum under the furnace burns with the fuel and to form a reducibility atmosphere calcining area in the lower section, the volume content of CO+H2 in reduction area is 0-10 percent, secondary air is sent from top of the reduction area to burn residual CO+H2 completely, airflow speed is 1-6m / s in the furnace, raw powder material is in fluidization, kaolin is circularly burned for 0.3-3 hours in temp. 700-1100 deg.C, then is sent into cyclone cooling system to be cooled to obtain superfine kaolin by mixer-grinding and depolymerizing.

The present invention provides a polymerizable compound represented by the following formula (I), a polymerizable composition that includes the polymerizable compound and an initiator, a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic article that includes the polymer. The invention makes it possible to provide a polymerizable compound, a polymerizable composition, and a polymer that have a practical low melting point, exhibit an excellent solubility in a general-purpose solvent, can be produced at low cost, and may produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and an optically anisotropic article. [In formula: Q1 to Q4 represent hydrogen atoms or the like; X represents a C6-C12 divalent aromatic group or the like; Ax and Ay represent groups represented by the following formula (II); n represents 0 or 1; * represents a bonding position; Y1 to Y6 represent a single bond, —O—, —O—C(═O)—, —C(═O)—O— or the like; G1 and G2 represent divalent C1-C20 aliphatic groups or the like; Z1 and Z2 represent C2-C10 alkenyl groups or the like; A1 represents a trivalent aromatic group or the like; and A2 and A3 represent divalent C6-C30 aromatic groups or the like.]

This invention provides a polymerizable compound represented by formula (I), a polymerizable composition containing the polymerizable compound and a polymerization initiator, a polymer produced by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic product comprising the polymer as a constituent material. In formula (1), Y1 to Y9 represent —O—, —S—, —O—C(═O)—, —C(═O)—O— or the like, G1 and G2 represent a divalent linear aliphatic group having 1 to 20 carbon atoms or the like, Z1 to Z3 represent an alkenyl group having 2 to 10 carbon atoms or the like, Ax represents a group represented by a formula (II), wherein X represents an oxygen atom, a sulfur atom or the like,D represents an alkylene group having 1 to 20 carbon atoms or the like, A1 represents a trivalent aromatic group or the like, A2 and A3 represent a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms or the like, A4 and A5 represent a divalent aromatic group having 4 to 30 carbon atoms or the like, Q1 represents an alkyl group having 1 to 6 carbon atoms or the like, and m and n are 0 or 1.

The present invention relates to: a polymerizable compound represented by a formula (I), wherein each of Y1 to Y8 independently represents —O—, —O—C(═O)—, —C(═O)—O— or the like; each of A2, A3, G1, and G2 independently represents a divalent linear aliphatic group having 1 to 20 carbon atoms or the like; each of Z1 and Z2 independently represents an alkenyl group having 2 to 10 carbon atoms or the like; Ax represents an organic group having 2 to 30 carbon atoms that includes at least one aromatic ring; Ay represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or the like; A1 represents a trivalent aromatic group or the like; each of A4 and A5 independently represents a divalent aromatic group having 6 to 30 carbon atoms or the like; and Q1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or the like; and others. According to the present invention, it becomes possible to provide: a polymerizable compound that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced inexpensively, can be dried at a lower temperature, has excellent energy efficiency, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band; and others.

The present invention relates to a polymerizable compound represented by a formula (I). The present invention provides a polymerizable compound, a polymerizable composition, a polymer, and an optically anisotropic article that are capable of obtaining an optical film having a low melting point, having excellent solubility, capable of being manufactured at low cost, and capable of uniform polarized light conversion across a broad wavelength region. [In formula: Y1 to Y6 are independently a chemical single bond, —O—, —O—C(═O)—, —C(═O)—O— etc.; G1 and G2 are independently a divalent C1-C20 aliphatic group etc.; Z1 and Z2 are independently C2-C10 alkenyl group that is substituted with a halogen atom etc.; Ax is a C2-C30 organic group that includes at least one aromatic ring selected from a group consisting of an aromatic hydrocarbon ring and an aromatic hetero ring; Ay is a hydrogen atom, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C3-C12 cycloalkyl group etc.; A1 is a trivalent aromatic group etc.; A2 and A3 are independently a divalent C6-C30 aromatic group etc.; and Q1 is a hydrogen atom, or a C1-C6 alkyl group etc.]

The present invention relates to: a polymerizable compound represented by a formula (I); a polymerizable composition comprising the polymerizable compound and an initiator; a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition; and an optically anisotropic article comprising the polymer [in the formula, Y1 to Y8 are a chemical single bond, —O—, —O—C(═O)—, —C(═O)—O—, or the like; G1 and G2 are a divalent aliphatic group having 1 to 20 carbon atoms, or the like; Z1 and Z2 are an alkenyl group having 2 to 10 carbon atoms, or the like; A1 is a tetravalent aromatic group, or the like; A2 and A3 are a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms, or the like; A4 and A5 are a divalent aromatic group having 4 to 30 carbon atoms, or the like; Ax1 and Ax2 are an organic group having 2 to 30 carbon atoms that includes an aromatic ring, or the like; Ay1 and Ay2 are a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or the like; Q1 and Q2 are a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or the like; and m and n are 0 or 1]. According to the present invention, a polymerizable compound, a polymerizable composition, and a polymer that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced at low cost, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and also provide an optically anisotropic article.

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article. A carbonyl compound is useful as a raw material for producing the polymerizable compound. (In the formula (I), Y1 to Y8 represent —C(═O)—O—, G1 and G2 represent a C1-20 divalent linear aliphatic group, Z1 and Z2 represent a C2-10 alkenyl group that is unsubstituted, or substituted with a halogen atom, Ax represents a C2-30 organic group with at least one aromatic ring, Ay represents a hydrogen atom or C1-20 alkyl group, A1 represents a trivalent aromatic group, A2 and A3 represent a C3-30 divalent alicyclic hydrocarbon group, A4 and A5 represent a C6-30 divalent aromatic group or the like, and Q1 represents a hydrogen atom.)

The present invention provides a polymerizable compound represented by the following formula (I), a polymerizable composition that includes the polymerizable compound and an initiator, a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic article that includes the polymer. The polymerizable compound, polymerizable composition, and polymer have a practical low melting point, exhibit an excellent solubility in a general-purpose solvent, can be produced at low cost, and may produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and an optically anisotropic article.

The present invention pertains to: a polymerizable compound represented by a formula (I); a polymerizable composition comprising the polymerizable compound and an initiator; a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition; and an optically anisotropic article comprising the polymer. The present invention provides a polymerizable compound, a polymerizable composition, and a polymer that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced at low cost, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and also provide an optically anisotropic article.

The invention is a polymerizable compound represented by formula (I); a polymerizable composition comprising the polymerizable compound and an initiator; a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic article comprising the polymer. In the formula, Q1 to Q3 are a hydrogen atom, and the like; X is a C4-12 divalent aromatic group, and the like; Y1 to Y12 are a chemical single bond, —O—, —O—C(═O)—, —C(═O)—O—, and the like; G1 to G4 are a C1-20 divalent aliphatic group, and the like; Z1 to Z4 are a C2-10 alkenyl group, and the like; A1 is a trivalent aromatic group, and the like; A2 to A7 are a C4-30 divalent aromatic group, and the like; and n is 0 or 1. The present invention provides a polymerizable compound, a polymerizable composition, and a polymer that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced at low cost, and may produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and an optically anisotropic article.

This invention provides a polymerizable compound represented by formula (I), a polymerizable composition containing the polymerizable compound and a polymerization initiator, a polymer produced by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic product comprising the polymer as a constituent material. In formula (1), Y1 to Y9 represent —O—, —S—, —O—C(═O)—, —C(═O)—O— or the like, G1 and G2 represent a divalent linear aliphatic group having 1 to 20 carbon atoms or the like, Z1 to Z3 represent an alkenyl group having 2 to 10 carbon atoms or the like, Ax represents a group represented by a formula (II), wherein X represents an oxygen atom, a sulfur atom or the like,D represents an alkylene group having 1 to 20 carbon atoms or the like, A1 represents a trivalent aromatic group or the like, A2 and A3 represent a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms or the like, A4 and A5 represent a divalent aromatic group having 4 to 30 carbon atoms or the like, Q1 represents an alkyl group having 1 to 6 carbon atoms or the like, and m and n are 0 or 1.

The invention relates to a processing method for Mengdingshihua green tea. The processing method is characterized by comprising the following steps: picking up fresh leaves; withering; removing green; spreading to cool; grading; stripping; spreading to cool; returning water; shaping; spreading to cool; initially drying; spreading to cool; re-roasting; extracting fragrance and the like. Excellent product green tea is produced, wherein the shape is light green and lubricative, flat and beautiful and gives a feature of silvery hairs; the liquor color of the endoplasm is clear and bright, sweet in flavor and fresh and tender, pure in fragrance and durable, and the bottoms of the leaves are light green and bright. The quality of the Mengdingshihua green tea is greatly superior to that of existing Shihua green tea (existing Shihua green tea is heavy in green grass flavor and astringent in taste, and the bottoms of the leaves and the liquor color are yellow and dark).

An optical element (120; 220; 320; 420) includes a fluid material (104; 204; 304; 404) which is held between a first surface (106; 206; 306; 406) and a second surface (108; 208; 308; 408) and has a refractive index which is variable in response to variation of an applied field. The first surface and said second surface have respective first and second cross-sectional profiles, which vary in height when measured parallel to the optical axis of the optical element, across the respective first and second surfaces.

The present invention relates to: a copolymer comprising repeating units (I) and (II) in its molecule, wherein the content of the repeating units (I) and (II) are 5 to 90 mol % and 95 to 10 mol %, respectively, and a 0.5 g / dl methylene chloride solution of the copolymer having a reduced viscosity (ηsp / c) at 20° C. of 0.3 to 2.0 dl / g; an optically anisotropic article comprising one type or two or more types of the copolymer, or a mixture that includes one type or two or more types of the copolymer, and an additional polymer; and an oriented polymer film obtained by stretching the film-like optically anisotropic article.

The present invention relates to: a polymerizable compound represented by a formula (I); a polymerizable composition comprising the polymerizable compound and an initiator; a polymer obtained by polymerizing the polymerizable compound or the polymerizable composition; and an optically anisotropic article comprising the polymer [in the formula, Y1 to Y8 are a chemical single bond, —O—, —O—C(═O)—, —C(═O)—O—, or the like; G1 and G2 are a divalent aliphatic group having 1 to 20 carbon atoms, or the like; Z1 and Z2 are an alkenyl group having 2 to 10 carbon atoms, or the like; A1 is a tetravalent aromatic group, or the like; A2 and A3 are a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms, or the like; A4 and A5 are a divalent aromatic group having 4 to 30 carbon atoms, or the like; Ax1 and Ax2 are an organic group having 2 to 30 carbon atoms that includes an aromatic ring, or the like; Ay1 and Ay2 are a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or the like; Q1 and Q2 are a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or the like; and m and n are 0 or 1]. According to the present invention, a polymerizable compound, a polymerizable composition, and a polymer that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced at low cost, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and also provide an optically anisotropic article.

This polymerizable compound is represented by a formula (I), this polymerizable composition contains said polymerizable compound and a polymerization initiator, this polymer is obtained by polymerizing the polymerizable compound or polymerizable composition, and this optically anisotropic product is comprised from the polymer. In the formula, each of Y1 to Y8 represents —O—, —S—, —O—C(═O)—, —C(═O)—O—, etc., Ya represents —O—, —S—, —O—C(═O)—, —C(═O)—O—, etc., each of G1 and G2 represents a divalent linear aliphatic group having 1 to 20 carbon atoms, etc., each of Z1 and Z2 represents an alkenyl group having 2 to 10 carbon atoms, etc., Ax represents an organic group having an aromatic ring and 2 to 30 carbon atoms, A1 represents a trivalent aromatic group, etc., each of A2 and A3 represents a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms, each of A4 and A5 represents a divalent aromatic group having 4 to 30 carbon atoms, etc., Q1 represents an alkyl group having 1 to 6 carbon atoms, etc., and each of m and n represents 0 or 1.

The invention discloses a power detection device of a laser device. The power detection device comprises a power detection component which is composed of a light reflecting plate and a laser power detector. The light reflecting plate reflects the laser emitted by the laser device to the laser power detector to perform power detection. The light reflecting plate periodically reflects the laser beams of the laser device so that the laser power detector is enabled to periodically receive the laser reflected by the light reflecting plate. The power detection device of the laser device has low production cost, high detection value stability and high accuracy.

The invention discloses a millstone pressing method of puer tea. The millstone pressing method comprises the following steps of: loading weight: putting dry primary tea which is loaded in a cloth bag and kneaded into a round cake below a millstone, and vertically loading 45-55kg of weight on the millstone; peripheral pressing: pressing the dry primary tea loaded with the weight along the periphery of the millstone; intermediate pressing: pressing the dry primary tea after peripheral pressing in the middle of the millstone. The puer tea cake prepared according to the millstone pressing method is moderate in tightness, and the space density of the tea cake from inside to outside is uniform, so that the transformation of the tea cake in the later storage process can be uniformly carried out, and the consistent taste of tea liquor at all positions of the tea cake can be guaranteed.

The invention provides high hardness high-chromium alloy wear-resisting balls and a preparation method thereof. The wear-resisting balls comprise the following alloying elements in percentage: 2.2-2.45% of C, 0.5-0.7% of Si, 0.8-1.2% of Mn, 16-18% of Cr, 0.18-0.23% of Cu, 0.25-0.36% of Mo, 0.1-0.23% of B, 0.4-0.55% of Ni, and the balance of Fe and unavoidable impurities; and the high hardness high-chromium alloy wear-resisting balls further comprise rare-earth oxides and nitride fine powder. According to the high hardness high-chromium alloy wear-resisting balls and the preparation method thereof, through reasonable element proportion and process optimization, the prepared wear-resisting balls are good in comprehensive quality, high in strength and high in hardness, reduced by 7% in abrasion loss, not liable to deformation and sinking, and further prolonged by more than 4 times in service life when compared with that of common high-chromium alloy wear-resisting balls.

The invention discloses a fluorescent module and a laser lighting system. The fluorescent module comprises a fluorescent layer, a semiconductor refrigeration device and a radiator, a cold end of the semiconductor refrigeration device is connected with the fluorescent layer, a hot end of the semiconductor refrigeration device is connected with the radiator, and the fluorescent layer is an integrally formed fluorescent layer. According to the fluorescent module, the used fluorescent layer is the integrally formed fluorescent layer, so that the uniformity of a fluorescent material in the fluorescent layer can be ensured in the preparation process, the wavelength conversion is uniform, the color and intensity of emergent light are uniform, and light spots are not formed. Meanwhile, the integrally formed fluorescent layer is high in density and heat conductivity, so that heat generated when the integrally formed fluorescent layer is irradiated by laser can be rapidly conducted, and heat dissipation is faster. According to the laser lighting system, due to the fact that the fluorescent module is used, the luminous intensity is greatly improved, and meanwhile it is guaranteed that emergent light spots are uniform.

A laser scanning three-dimensional imaging correction method comprises the steps: obtaining laser dot matrix data by scanning an object through laser and storing the laser dot matrix data in a database; reading the laser dot matrix data from the database to a temporary variable data table; compensating the scanned dot matrix data and inserting dot values; carrying out matrix transformation of coordinates after dot matrix data is inserted; and storing and outputting the converted dot matrix data. According to the invention, through real-time measurement based on a scanning angle and an inclination angle, a data insertion method relative to a certain specific point is solved, conversion of a dot matrix from a sparse inconsistent state to a uniform dot matrix is achieved, so that the dot matrix can truly reflect an actual object state, and good data information is provided for subsequent dot matrix graphic processing.

The invention discloses an environment-friendly material-saving device for sulfuric acid rolling of smeared unformed plates through rolling dipping of a rich solution with a barren solution. The device comprises an upper rolling dipping roll, a lower rolling dipping roll, an upper transfer roll, a lower transfer roll, an upper rolling roll, and a lower rolling roll, wherein the upper rolling dipping roll is rolled through an upper rolling dipping acid tank below the upper rolling dipping roll in a soaked manner, and the lower rolling dipping roll is rolled through a lower rolling dipping acid tank below the lower rolling dipping roll in a soaked manner; the upper rolling dipping roll and the lower rolling dipping roll are respectively in contact with the upper transfer roll and the lower transfer roll to transfer rolling; the upper transfer roll and the lower transfer roll are respectively in contact with the upper rolling roll and the lower rolling roll to transfer rolling; a gap is formed between the upper rolling roll and the lower rolling roll; an unformed plate delivery rollway is arranged in the gap; roll surfaces of the upper rolling dipping roll, the lower rolling dipping roll, the upper transfer roll, the lower transfer roll, the upper rolling roll and the lower rolling roll are all wrapped with acid-resistant and acid-absorbent roll cloth. When the unformed plates are rolled through the device, dripping of dilute sulfuric acid and lead mud is prevented, so that the acid rolling lead mud and the acid are not wasted, and a surface acid layer is thin and uniform.

The invention provides a polymerizable compound represented by formula (I), a polymerizable composition, and a polymer that have a practical low melting point, can be produced at low cost, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band, and an optically anisotropic article. In the formula: Y1-Y6 represent a single bond, —O—, —O—C(═O)—, —C(═O)—O—, or the like; G1 and G2 represent a bivalent aliphatic group, or the like, of C1-20; Z1 and Z2 represent a C2-10 alkenyl group or the like; Ax represents a C2-30 organic group, or the like, having at least one aromatic ring selected from an aromatic hydrocarbon ring and a hetero-aromatic ring; Ay represents a hydrogen atom, a C1-6 alkyl group, or a C2-30 organic group, or the like, having at least one aromatic ring selected from an aromatic hydrocarbon ring and a hetero-aromatic ring; A1 represents a trivalent aromatic group or the like; A2 and A3 represent a bivalent aromatic group or the like; Q1 represents a hydrogen atom, a C1-6 alkyl group, or the like. Ax and Ay may form a ring together

The invention discloses a preparation method for a white tea brick. The preparation method comprises the following steps: step (1) selecting a mould; step (2) steaming and softening; step (3) pressing: rapidly taking out softened tea leaves, pouring into the tea brick mould and pressing as a tea brick, wherein pressing time is 10-20 s, in a pressing process, keeping a thickness of the tea leaves in the mould to be within 4.5-5.5 cm always, wherein a pressure is 10-16 tons; step (4) airing and rebounding: enabling the tea leaves in the tea brick to be rebounded by 10%-15%; step (5) drying and shaping; and step (6) packaging: after cooling the shaped tea brick, packaging. The preparation method is capable of effectively solving problems that in a preparation process, because a current tea cake or a tea brick is compacted, pressing time is longer, an auxiliary tool is necessarily needed in tea taking and brewing processes, the tea leaves are easily broken and crushed in the tea taking process, softening and pressing time is longer, a black or heartburning phenomenon easily happens, drying time is longer and is 24 hours or more, otherwise moisture is higher, and standard requirements cannot be achieved.

The present invention relates to: a polymerizable compound represented by a formula (I), wherein each of Y.sup.1 to Y.sup.8 independently represents --O--, --O--C(.dbd.O)--, --C(.dbd.O)--O-- or the like; each of A.sup.2, A.sup.3, G.sup.1, and G.sup.2 independently represents a divalent linear aliphatic group having 1 to 20 carbon atoms or the like; each of Z.sup.1 and Z.sup.2 independently represents an alkenyl group having 2 to 10 carbon atoms or the like; A.sup.x represents an organic group having 2 to 30 carbon atoms that includes at least one aromatic ring; A.sup.y represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or the like; A.sup.1 represents a trivalent aromatic group or the like; each of A.sup.4 and A.sup.5 independently represents a divalent aromatic group having 6 to 30 carbon atoms or the like; and Q.sup.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or the like; and others. According to the present invention, it becomes possible to provide: a polymerizable compound that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced inexpensively, can be dried at a lower temperature, has excellent energy efficiency, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band; and others. ##STR00001##

The invention discloses a processing technology of organic green tea leaves. The processing technology comprises the following steps: picking, tedding, deactivating enzymes, tedding and airing, tidying tea strips, shaping, spreading and airing, primarily baking, spreading and airing, re-baking, extracting fragrance and packaging. The spreading and airing processes are added after enzyme deactivating, shaping and primary baking, so that the temperature of the tea leaves is rapidly reduced after each processing process, and the phenomenon that the tea leaves are stuffy in water due to the fact that heat cannot be dissipated in time is avoided. During spreading and airing, the tea leaves are put into a bamboo or wooden tea storage device and covered with a plastic bag for spreading, airing and moisture regaining, moisture in the leaves is promoted to be conveyed to the surfaces of the leaves, moisture of bud leaves is redistributed evenly, and tea leaf appearance smoothness and uniform conversion of contained substances are facilitated until the tea leaves are softened by hand.

The present invention relates to a filter, a CMY color mixing assembly using the filter and an optical system thereof. Said filter comprises a substrate and a filtering film plated on the substrate, and the filtering film comprises a uniform region and a color mixing region. The thickness of the filtering film in the uniform region is uniform, while the thickness of the filtering film in the color mixing region is not uniform. The thickness of the filtering film in the uniform region is greater than or equal to the thickness of the filtering film in the color mixing region, and the thickness of the filtering film of a central region of the color mixing region is greater than the thickness of the filtering film of side regions of the color mixing region. Said color mixing region is provided at a side where the filter first accesses to a light path.

Provided is a compound represented by the following formula:Y1 to Y8 each represent a chemical single bond, —O—, —S—, —O—C(═O)—, —C(═O)—O—, —O—C(═O)—O—, —NR1—C(═O)—, —C(═O)—NR1—, —O—C(═O)—NR1—, —NR1—C(═O)—O—, —NR1—C(═O)—NR1—, —O—NR1—, or —NR1—O—, R1 being a hydrogen atom or an alkyl group having 1 to 6 carbon atoms. G1 and G2 each represent a divalent linear aliphatic group having 1 to 20 carbon atoms. that optionally includes —O—, —S—, —O—C(═O)—, —C(═O)—O—, —O—C(═O)—O—, —NR3—C(═O)—, —C(═O—NR3—, —NR3—, or —C(═O)—. Z1 and Z2 each represent an alkenyl group having 2 to 10 carbon atoms. A1 represents a trivalent aromatic group. A2 and A3 each represent a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms. A4 and A5 each represents a divalent aromatic group having 6 to 30 carbon atoms. Q1 represents a alkyl group having 1 to 6 carbon atoms, an organic group having 2 to 30 carbon atoms that includes at least one of an aromatic hydrocarbon ring and a heteroaromatic ring, or a hydrogen atom. n and m each represent 0 or 1.

Provided is a method for producing a polymerizable compound represented by a formula (I) comprising:a step (1) that reacts a compound represented by a formula (II) with 2,5-dihydroxybenzaldehyde in an organic solvent in the presence of a base to obtain a reaction mixture including a compound represented by a formula (III); and a step (2) that adds a compound represented by a formula (IV) and an acidic aqueous solution to the reaction mixture obtained by the step (1) to effect a reaction, wherein A represents a hydrogen atom, a methyl group or the like, L represents a leaving group, n represents an integer from 1 to 20, X represents an oxygen atom, a sulfur atom, —C(R1)(R2)— or the like, R represents a hydrogen atom, an organic group or the like, and each of RX represents a hydrogen atom, a halogen atom or the like. According to the present invention, provided is a method for producing a polymerizable compound represented by a formula (I) at high purity and at high yield.