59results about How to "Pastel color" patented technology

The invention discloses a wiping colorant for an aqueous wooden ware and a preparation method thereof. The colorant for the aqueous wooden ware is matched with aqueous wooden ware paint to be used during coating; the colorant totally uses water degradable raw materials, and does not need to use an organic solvent; the colorant can be coated with aqueous base paint and surface paint and also can be coated with oily base paint and surface paint; and the colorant can allow the wood texture to show more remarkable wiped color and layering feeling. After coloring, if the wood board has defect, no trace or connected trace is left after repair. The colorant is quite simple in field construction operation, is provided with a matched transparent main agent for adjusting drying speed and color concentration, is environment-friendly, has no public hazard and pollution, and can be widely applied to building decoration, household environment, restaurants, hospitals, schools, marketplaces and other various public places, government offices, recreation spots, office buildings, and the like.

The invention discloses a single image defogging method based on sky region segmentation processing, comprising the steps of: calculating the preliminary estimation transmittance of an input image according to a dark channel prior theory, optimizing the preliminary estimation transmittance respectively through median filtering and guide filtering, combining two results, and replacing the transmittance optimized by halo region guide filtering with the transmittance optimized by median filtering; employing a Canny boundary operator to calculate the boundary images of original images, correcting miscalculated regions, dividing the images into sky and ground regions to be used as binary template to extract the sky region transmittance after guide filtering optimization, and performing non-linear expansion processing on the extracted sky region transmittance; combining the transmittance respectively obtained through the two steps, and performing guide filtering smooth processing; and utilizing obtained optimization transmittance to perform filtering processing. The single image defogging method can better improve halo effects and sky region color distortion, and greatly improve defogging effects of fog-degraded images.

The invention relates to the technical field of coated glasses, in particular to a piece of double-silver low-emissivity coated glass and a preparation method thereof. The coated glass adopts magnetron sputtering coating and comprises a glass substrate, and a film layer coated on the surface of the glass substrate, wherein the film layer comprises a first dielectric layer, a first silver layer, a first protective layer, a second dielectric layer, a second silver layer, a second protective layer, a third dielectric layer, a third protective layer and a fourth dielectric layer from one side of the glass substrate outwards in sequence. Compared with the prior art, the third protective layer and the fourth dielectric layer are additionally arranged, and the problem that the side surface of the coated glass changes in color when being observed from small angle is solved. Moreover, the film surface color and the penetration color are neutral, the whole color is soft and beautiful, and as a result, a comfortable feeling is offered for people.

The invention discloses an automatic zipper color plating device and a control system thereof. The purpose of the present invention is to solve the problems of low efficiency due to low automaticity of the existing zipper color plating equipment and the like. The automatic zipper color plating device comprises a frame, wherein an ultrasonic oil removal area, an activation area, a color plating area and a drying area are arranged inside the frame, and the zipper sequentially passes through the ultrasonic oil removal area, the activation area, the color plating area and the drying area, and is exported. A control system comprises a transmission system, a heating system, a temperature control system, a liquid medicine adding system, an ultrasonic oil removal system, a washing system and a sewage discharge system, wherein various systems closely match to achieve the automatic operation of the device. According to the present invention, With the parameters set by the electronic control equipment and various systems of the frame, the full automatic zipper production line is provided, the plated color is uniform, and the characteristics of energy saving and environmental protection are provided.

The invention discloses an LED integrated optical source with adjustable color rendering index and color temperature. The LED integrated optical source comprises a substrate, wherein a plurality of fluorescent powder cofferdams are arranged on the substrate, a plurality of blue-light LEDs and a plurality of red-light LEDs are arranged in each fluorescent powder cofferdam, the blue-light LEDs are connected in series, the red-light LEDs are connected in series, and the plurality of fluorescent powder cofferdam are alternatively coated with YAG:Ce<3+> fluorescent powder having a color temperature of 2,300-2,800K and YAG:Ce<3+> fluorescent powder having a color temperature of 6,000-6,800K.

The invention discloses an offline low-emissivity glass coated film system. According to the invention, an original metal Ti layer or a NiCr alloy is replaced with a nitrogen zinc oxide film layer in an existing offline low-emissivity glass coated film system. The nitrogen zinc oxide film layer is prepared by a magnetron sputtering method; nitrogen acts as a sputtering gas and a technological gas in the magnetron sputtering film coating process, and meanwhile, trace oxygen is introduced according to the practical product performance. Relatively low visible light reflectance is kept as well as the sun shading coefficient is low. The offline low-emissivity glass coated film system is gentle in color, can meet the neutral color requirement easily, is low in angle color deviation, and is excellent in abrasion resistance and outstanding in processing property, the finished product rate of the system is effectively improved, and the production cost is lowered.

The invention belongs to the field of LED display, and in particular relates to an LED screen cover with transparent round holes formed by multi-layer periodically changing black nets. A kind of LED screen cover with transparent circular holes formed by multi-layer periodically changing black nets. The black mesh forms round holes distributed in a dot matrix. There is no black mesh in the round holes, which maintains the transparency of the screen body and is a light-transmitting round hole. The beneficial effect of the present invention is that the shield body reduces the luminous intensity of the pixel unit; and the light transmission in part of the light-transmitting area restrains the mutual crosstalk between pixels, and the part of the light-transmitting area emits light, reducing the periodicity existing in the prior art The black area network structure, strong graininess, glaring local light intensity, and technical shortcomings that are not suitable for close viewing. The beneficial effect is that the PC plastic paper can be hot-compressed or printed or spray-painted, which can satisfy large-scale display on a large screen, has good display effect, low cost, simple technology, and scrub resistance.

The invention belongs to the field of ceramic products, and in particular relates to a Dehua ivory white porcelain and a preparation process thereof. The Dehua ivory white porcelain prepared by the present invention includes lard white body and lard white glaze, and the lard white body is made of Dehua kaolin, low-temperature clay, low-temperature stone, Dehua quartz, and pyrophyllite 18-25%. Made by comparison, the lard white glaze is made of low-temperature stone, pyrophyllite, Dehua Yangshan limestone, quartz, and Dehua kaolin. The Dehua ivory white porcelain provided by the present invention selects raw materials with large reserves and low prices as raw materials for lard white body and lard white glaze, and strictly controls the chemical components of the raw materials. Introducing trace amounts of rare earth elements cerium and praseodymium into the raw materials of the glaze can make the body and glaze appear milky yellow lard color, making the porcelain fine, dense, moist, lard color, soft in color, firm in white, and as white as fat , slightly yellow, has the closest artistic effect to traditional Dehua ivory white porcelain.

The invention discloses a green and healthy sandwich gelatinized confection rich in nutrition, and a production method thereof. The sandwich gelatinized confection comprises a capsule shell and a sandwich wrapped in the capsule shell, the capsule shell is prepared from, by weight, 26-49 parts of edible gelatin, 23-43 parts of water, 10-20 parts of glycerol, 5-11 parts of crystalline fructose, 4-9parts of ultramicro cocoa powder and 2-5 parts of ultramicro titanium dioxide; and the sandwich is prepared from, by weight, 0.009-0.018 part of beta-carotene, 0.03-0.12 part of phytosterol, 0.1-1.0 part of ultramicro cocoa powder, 0.35-0.65 part of hydrolyzed collagen, 2.8-5.19 parts of cocoa butter and 70-130 parts of sesame oil. The production method comprises the following steps: preparing a capsule shell gel solution, preparing a sandwich nutrient material, and preparing soft capsules from the capsule shell gel solution and the sandwich nutrient material to obtain the sandwich gelatinizedconfection. The sandwich gelatinized confection has the advantages of low sugar content, no pigment addition, greenness, healthiness, and richness in nutrition.

The invention discloses a clay plate prescription comprising main components and additives. The main components contain the following raw materials in percentage by weight: 8-20 white mud, 15-32 red mud, 20-35 clinker and 25-40 scraps; and the additives contain one or more rare earth yttrium oxide, rare earth oxide or rare earth cerium oxide with the addition of 2-7 percent (in percentage by weight of the main components) and also contain 3-6 percent of calcium chloride (in percentage by weight of the main components). The rare-earth elements and the calcium chloride are added to a clay plateto uniformly improve the plasticity, the toughness, the stability and the freeze-thaw performance of the clay plate and enable the clay plate to have brighter appearance colors and hardly fade; and meanwhile, the calcium chloride is added so that the clay plate has excellent waterproof, dust-collecting and self-cleaning functions.

The invention discloses a method for preparing proanthocyanidin whitening sunscreen cream, and belongs to the technical field of skin care products. A scientific formula for proanthocyanidin whitening sunscreen cream and a reasonable and high-utilization-rate sunscreen cream preparation method are provided. The proanthocyanidin whitening sunscreen cream is formed in the way that an aqueous phase and an oil phase are slowly mixed according to certain parts by weight for heat preservation and then stirring is conducted. The oil phase is prepared from oligomerization proanthocyanidin, stearic acid, hexadecanol, isopropyl palmitate, wool fat, olive oil, glycerin monostearate, methylparaben, propylparaben and water. The aqueous phase is prepared from glycerol, triethanolamine, lauryl sodium sulfate, water and azone. The effective component of the whitening sunscreen cream prepared through the method is the oligomerization proanthocyanidin which is a natural polyphenol substance, the oligomerization proanthocyanidin is obtained by purifying and extracting the proanthocyanidin through a macroporous resin isolation technology, and a good whitening sunscreen effect is achieved.

The invention relates to a preparation process for a diatom mud formaldehyde-removing indoor coating. The coating mainly comprises the following components in percentages by mass: 15-35% of diatomaceous earth, 0.2-1% of a dispersant, 0.1-2% of a surfactant, 15-25% of modified starch, 10-17% of a synthetic emulsion, 6-13% of nano-sized titanium dioxide, 5-12% of talc powder, 0-30% of a filler, 0.5-2% of a silver ion antibacterial agent, 1-5% of an auxiliary agent, 0.3-0.5% of a wetting agent, 0.2-0.5% of a defoaming agent, 10-15% of activated carbon, and the balance of water. In a word, the coating provided by the invention has the advantages of a wide range of raw material sources, low price, safety, environmental protection, and strong formaldehyde-adsorbing ability.

The invention relates to a protection method for a textile heritage, in particular to an inlaying and supporting method for protection of the textile heritage. The method comprises the following stepsthat step 1: material selection is performed; step 2: the production process of an inlaying layer is performed, the inlaying layer comprises a main body layer and a packaging layer, and the packaginglayer is folded to form a supporting surface and a packaging surface; a clamping groove is produced, a picture equal to the heritage in size is printed out, a pattern is cut out carefully along the edge and is placed on cloth of the supporting surface of the produced inlaying layer, the optimal placing position is adjusted, the closed figure is drawn along the outline of the pattern by the aid ofa pencil on the cloth, all the cloth is closely sewed by one circle along the outer side of the drawn closed figure, the cloth is cut off layer by layer along the outer side of the drawn closed figure, and a supporting plate is added to the inlaying layer. The method conforms to the general principle of heritage protection and repair, the operation method is simple, the cost performance of materials is high, and various requirements for heritage protection can be met.

The invention discloses multifunctional wheatgrass paint, a preparation method thereof and a wall construction method of the paint. Each ton of wheatgrass paint is prepared from, by weight, 100-150Kgof water, 1-3Kg of hydroxyethyl cellulose, 5Kg of coalescing agents, 4-8Kg of propylene glycol, 1-3Kg of mildew-resistant synergists, 1-2Kg of multifunctional additives, 1-2Kg of defoaming agents, 1-2Kg of polyurethane rheological modifiers, 90-140Kg of RS silicone acrylic emulsion, 1-4Kg of thickening agents, 2-3Kg of leveling agents, 0-3Kg of ethylene glycol monobutyl ether, 300-500Kg of nano-calcium carbonate, 30-80Kg of diatomite, 15-20Kg of nano-zinc oxide, 15-20Kg of vermiculite, 15-30Kg of shell powder, 1-6Kg of rutile titanium dioxide, 200-300Kg of natural round sand and 1-8 parts of mildew-resistant specially-made wheatgrass. Color paste is added according to actual color depth requirements of the wheatgrass paint. The wheatgrass paint has a plurality of functions of antique ecological decoration, adsorption moisture regulation and long color retention, the mildew-resistant specially-made wheatgrass is stewed and soaked to prepare the wheatgrass print which is fine and can beused for inner wall decoration, the mildew-resistant specially-made wheatgrass is soaked to prepare the wheatgrass print which is rough which can be used for outer wall decoration.

The present invention relates to a colored manila paperboard which is used to coating colors on the surface when the general chest or carton box is made, especially relates to the making method of the colored manila paperboard whose surface is coated with yellow soil, greenstone, wood coal and plant extract and the presentation of the color and luster becomes easy and economical. Furthermore, the invention makes the manufacturer of the manila paperboard produce the colored base paper comprising the yellow soil, green stone, wood coal or plants (mescal) extract with one product line, accordingly makes the manufacturer of the package box does not need to add work procedures or equipments of other materials to coasting on the chest or carton box, therefore it reduces the cost of the manufacturer and it can make environment protection packing box.

The invention relates to a clear water hair dyeing cream. The clear water hair dyeing cream comprises 50 to 51% of a water phase ingredient, 20 to 22% of an oil phase ingredient, 17 to 18% of an intermediate phase ingredient, 4 to 5% of a pH conditioning agent, 6 to 8% of an anti-oxidizing stable phase ingredient, and 0.4 to 0.6% of an essence. The invention also discloses a preparation method of the clear water hair dyeing cream. The clear water hair dyeing cream is low in toxicity, and is capable of controlling oxidation coloring reaction; after dyeing with the clear water hair dyeing cream, hair color is natural and soft; the preparation method is simple; and product performance is more stable.

The invention relates to polyvinyl chloride color masterbatch suitable for high-speed production of automobile wires and cables and a preparation method of the polyvinyl chloride color masterbatch. The active components of the polyvinyl chloride color masterbatch consist of the following raw materials in parts by weight: 45-55 parts of polyvinyl chloride, 5-12 parts of titanium dioxide, 4-8 partsof a brightening agent, 3-6 parts of a calcium zinc stabilizer, 1-3 parts of oxidized polyethlene wax, 1-3 parts of a surface treating agent, 1-3 parts of zinc stearate, 1-3 parts of a coupling agentand 25-35 parts of pigment. The polyvinyl chloride and the oxidized polyethlene wax are pre-stirred, so that substrate materials are stable and uniform when being mixed, the polymerizing degree is higher, when the temperature of masterbatch substrates is lower than that of squeezed materials, diverging and coloring of masterbatch are facilitated, the fusion degree of the masterbatch substrate materials and the squeezed materials is increased, and high-speed squeezing is facilitated; and through measures of added materials and a production technology, the masterbatch materials are more suitablefor high-speed squeezing of automobile wires and cables, the production efficiency is greatly improved, and unnecessary losses caused by color problems are reduced.

The invention discloses a photovoltaic glue-lined glass for non-crystalline silicon solar battery component, belonging to BIPV field, substituting film solar battery component for block solar battery to change the structure of photovoltaic layer. And the single-faced or double-faced noncrystalline silicon solar battery components and the transparent glass medium are arranged in parallel, in order and at intervals and inlaid in a conductive side frame, several said solar battery components and transparent glass medium alternates with light and shade to form a grating shape. The sections of the conductive frame are í‹LíŒ-shaped, í‹TíŒ-shaped, í

Bacitracin, bacitracin derivatives and other oligopeptides, alone or in the form of oligopeptide-metal ion complexes, are shown to be useful as bleach catalysts incorporated in washing and cleaning agents for the cleaning of soiled hard surfaces and textile fabrics. These catalysts may be used in conjunction with hydrogen peroxide or any alternate bleaching agent, or used simply in the presence of atmospheric oxygen to bleach stains. New and novel oligopeptides and their metal ion complexes are disclosed herein, along with methods for the cleaning of hard surfaces and textile fabrics with washing and cleaning agents incorporating these bleach catalysts.

The invention belongs to the field of LED display screen, and particularly relates to a plastic-film-stacked LED color screen cover with part of transparent aperture in lattice distribution. The plastic-film-stacked LED color screen cover with part of transparent aperture in lattice distribution is characterized in that the screen cover is an entity which is stacked and adhered by n layers of transparent plastic film or plastic board of with the same size, and an inner interlayer surface of the screen cover is provided with a pattern layer; circular black-spot layers with lattice distribution are added from the (n-1)th layer to the nth layer of the screen cover. The plastic-film-stacked LED color screen cover with part of transparent aperture in lattice distribution has the advantages that after a pixel image is subjected to light filtering treatment, luminance in the circular-cone section of a color screen pixel cell is filtered out, a network black area of the color screen is lightened, the four advantages of the LED display are given full play to, and seamless and impeccable displaying of an image output by the LDE color screen is achieved. It is estimated that one day this kind of color screen which is subjected to light filtering by adding the screen cover can become a novel and personalized domestic television, and will be applicable to thousands of households.

The invention discloses a method for enabling the displayed colors of a status bar and a toolbar to change automatically, and the method can be realized through the following steps: getting colors in non-controlled regions; matching the colors in the non-controlled regions with colors enjoying the highest similarity; and designating the obtained colors to controlled regions to realize color changes in controlled regions further to achieve the function of automatic color changing. According to the invention, the function of automatic color changing realized in the method help a viewer avoid visual discomfort from the vast color contrast between the status bar and the toolbar on a computer display for a lack of color transition there-between, and makes displayed contents free of color conflicts and makes the display more visually comfortable. The method also prevents a views from visual discomfort from the mismatch of colors and makes the interface softer in terms of colors.

The invention belongs to the technical field of thermal insulation materials and in particular relates to a sodium-based thermal insulation coating and a preparation method thereof. The sodium-based thermal insulation coating is prepared from the following components in parts by weight: 10-35 parts of perlite, 10-30 parts of aluminum silicate fiber, 10-30 parts of wood fiber, 2-10 parts of kaolin, 5-20 parts of pearlite sand, 5-15 parts of floating bead, 8-20 parts of brucite fiber, 5-20 parts of bentonite and 0.5-3 parts of water and is prepared by the steps of mixing, standing and the like. By virtue of adopting the thermal insulation coating prepared by the method, the fire resistance, the high temperature resistance, the flame retardancy, the corrosion resistance, the waterproofness and the performance cost ratio are high, the application range is wide, and therefore, the sodium-based thermal insulation coating has very high market value.

The invention is suitable for the field of illumination, and provides a yellow / green light diode, a backlight, a mobile phone and an illumination indicating device. The yellow / green light diode comprises a substrate for die attach and wire bonding of a blue light LED (Light Emitting Diode) chip and a reflecting cup which is fixedly arranged on the substrate and enables an packaging material to the formed, wherein the packaging material is transparent slurry doped with a light yellow fluorescent material, and the packaging material covers the blue light LED chip. According to the invention, the light yellow fluorescent material is doped in the transparent slurry to obtain the packaging material, the packaging material covers the blue light LED chip, the light emitted by the blue light LED chip excites the light yellow fluorescent material to generate high-brightness yellow / green light, and the yellow / green light diode prepared from such packaging has the advantages of high reliability, simple process and low cost. The yellow / green light diode can be used as the backlights of a variety of consumption products, such as a mobile phone, a PDA (Personal Digital Assistant) and the like or used for decoration, illumination indication and the like, and has the advantages of wide application, softer color and comfort and warm feeling to people.

The invention discloses an environment-friendly volcanic rock composite coating for removing formaldehyde. The environment-friendly volcanic rock composite coating comprises main materials and auxiliaries, the main materials comprise, by weight, 15-30 parts of tourmaline, 3-8 parts of medical stone, 10-20 parts of volcanic rock, 3-8 parts of bamboo charcoal powder, 4-6 parts of titanium dioxide and 5-10 parts of kieselguhr. The invention relates to the technical field of building coatings. The environment-friendly volcanic rock composite coating for removing formaldehyde can effectively adsorb formaldehyde and purify air. The adopted volcanic rock has natural pores and good adsorbability, the microporous structures can realize physical adsorption of formaldehyde, under the action of diatomite, and part of water in air can be absorbed; meanwhile, medical stone and tourmaline with permanent electrodes are added, and water molecules are ionized in the microporous structure to form negative oxygen ions which are emitted into a room, so that the indoor environment body feeling is further improved; and rare earth phosphate or rare earth sulfate is adopted as a curing agent, a coating layer can form a huge molecular network, and convenience is brought to use of people.

The invention discloses a purification type four-prevention bracket lamp, and belongs to the technical field of illumination lamps. The bracket lamp comprises a bracket and a lampshade, a lamp cap end cover and a light source arranged on the bracket. The bracket lamp is characterized in that: the lamp cap end cover is provided with a 1-shaped clamp spring, the lamp cap end cover is connected with the bracket and the lampshade through the clamp spring to form a lamp body, the light source and a lamp pin are fixed in the lamp body, and silicon rubber sealing rings for sealing are arranged between the lamp cap end cover and the bracket, between the lamp cap end cover and the lampshade and between the bracket and the lampshade. The lampshade is made of anti-glare acrylic plate, and the lampshade is provided with a powder electrostatic coated nano material layer. The nano material layer contains nano silver and sodium ions. The bracket lamp has reasonable and simple structure, is easy to produce and manufacture and convenient to assemble, has low cost and good dustproof, shockproof, waterproof and anti-glare performance, is efficient, energy-saving and environment-friendly, and can be widely applied to the places of offices, markets, schools, hospitals and the like.

The invention discloses a copper casting coloring agent. The copper casting coloring agent comprises, 50-100 g / L of sodium hydroxide, 50-100 g / L ammonium molybdate, 50-100 mL / L ammonia water, 15-30 g / L sodium bicarbonate, 20-40 g / L potassium peroxodisulfate, 50-100 g / L sodium nitrate and 5-10 g / L thiourea. The coloring agent is water-soluble, low in manufacturing cost, uniform in coloration, softin color, not easy to fall off and free of discoloring.

The invention discloses an even-lighting variable-color light source with low power consumption. The light source comprises a control circuit board. A plurality of LEDs are disposed on the control circuit board and are at least in two colors. The LEDs different in color are arranged at intervals. Reflecting film is arranged between the control circuit board and the LEDs. A diffusion plate is disposed above the LEDs. Semitransparent light guide film is disposed on the diffusion plate. The LEDs are symmetrically disposed at two ends of the diffusion plate. The LEDs different in color are disposed on the control circuit board and are synchronously turned on under circuit control, so that a light guide plate can change in various colors with no need for change of the light guide film. The LEDs different in color are arranged at intervals, so that light from the light source is even. The LEDs are also symmetrically distributed at two ends of the diffusion plate and are installed end to end to allow light to mutually irradiate, so that the light can be concentrated to the diffusion plate.

The invention relates to a portable colorful LED lamp and belongs to an ornamental LED lamp. The LED lamp is capable of being carried along, presenting different colors and pure, uniform and soft in presented colors. The LED lamp comprises a casing formed by a base and a milky semitransparent lampshade. Various circuit components are arranged in the casing, and a battery supplies power. LEDs in the circuit comprise red, green, blue and white LEDs and emit light and mix colors under the control of the integrated circuit, emitted light irradiated on the lampshade directly or irradiated to the lampshade after passing through a diffusion plate to present corresponding colors on the lampshade to be enjoyed by people. The LED lampshade has the purposes of being capable of put indoors to be enjoyed by people or carried to any places to be enjoyed by people, and accordingly, nice feelings are brought to people.

The invention provides a natural dye transfer printing color paste as well as a preparation method and a printing method. A shortcoming that damages are caused to human bodies and atmospheric environment by transfer printing in the prior art is overcome. The color paste comprises the following components in percentage by mass: 2-23 % of natural plant dye, 35-50 % of acrylic resin, 0.3-0.5 % of plasticizer and 26.5-62.7 % of solvent. The printing method of the natural dye transfer printing color paste comprises the following steps: (1) preparation of the natural dye transfer printing color paste; and (2) fabric printing. The natural plant dye has no affinity with a film; during transfer printing, high transferring efficiency and fastness is qualified through an effect of a natural modifying agent; the natural plant dye has a soft and plain color; through a transfer printing process, a layered plate printing effect can be obtained; the transfer printing process is pollution-free and the dye, the solvent, an auxiliary and a fabric are all modified into environment friendly products; and moreover, transfer printing paper is not needed and forest resources are protected.

The invention discloses a camera. The camera comprises a fill-in light device and a camera shell, the light supplementing light source comprises a main light supplementing part and a mixed color lightsupplementing part, light emitted by the main light supplementing part is located in a first wave band, light emitted by the mixed color light supplementing part is located in a second wave band, andlight emitted by the mixed color light supplementing part and light emitted by the main light supplementing part are mixed to form exposure compensation light. According to the light supplementing light source, the wavelength of the main light supplementing part is adjusted in the first wave band; the recognition rate of the to-be-photographed object is improved; in addition, the color mixing andlight supplementing part is arranged on the basis of the main light supplementing part, and the color of the mixed light mixed with the light emitted by the main light supplementing part is adjustedthrough the light emitted by the color mixing and light supplementing part, so that the color of the exposure compensation light emitted by the light supplementing light source is softer, and glare topeople is avoided.