Jilin tianhua opto-electrical technology development co., ltd., production and sale of precise optical elements. Our company locates in changchun city, jilin province, the optical base of china. We specialize in cylindrical mirror. There are more than 60 people in the company, who are researchers and professional technicians of changchun institute of optics, fine mechanics and physics, chinese academy of sciences. Our company has advanced optical cold-working detecting equipments and process equipments, and provides high-quality products and professional services for customers. We can produce cylindrical mirrors of different specifications, sizes, radii, materials and special shapes or organized types. We can process high-precision cylindrical mirrors of special optical characters, such as: achromatic cylindrical mirror, parabolic mirror, cylindrical ellipsoidal mirror and hyperbolic mirror. Cylindrical mirrors of complicated shapes, such as: fan-typed, off-axis cylindrical mirror, angular cylindrical mirror, etc. In addition, we produce other optical elements such as flat mirror, window, prism, spherical lens, etc. Our company can design and process all kinds of optical elements according to requirements, and do gluing and filming on products. Substrate materials we usually use are optical glass, bk7, k9, violet quartz, ultrared quartz, caf2 crystal zf soft material, etc. (special material should be supplied by customers) the company takes “be faithful and honest, keep quality first, supply products on time and pursue perfect” as its operational principle. We are glad to communicate and cooperate widely with friends in domestic and abroad. We promise: to become your “wholesaler” of optical elements with high quality, high speed and low price. Soft paper and box 10*10*10cm 0.4kg
Glass lenses resin lenses 10pairs/box
Refractive index: 1.498 Abbe value: 58 Density: 1.32 Uv: 380 Carton:0.5*0.5*0.3
We deal in branded CL of JJ,BL,Ciba,Cooper. Standarded
Contact lenses Soft contact lenses Color contact lenses. Export packing standard
Specifications£º Material: Bk7, Quartz, Caf2, Sapphire etc. Diameter: .OD:2mm-120mm Edge thickness: 1mm +/- 0.10mm. Focal length: 0.1% to 2% . Surface quantity: 80/50 to 20/10 . Centration: 1 to 3Arc minutes Fringes: 1 to 5 Clear Aperture>90% of diameter Coating: Uncoated, AR, HR, PR coating, etc. Shaps: Spherical, aspheric, ball, plano, cylindrical etc. Applications: Lighting ,project,viedo projector,saolar system,telescope, etc.
Material: Pet PETG PC, Ply: 0.25mm/0.5mm/0.8mm/1.0mm etc There are 2 type of those products one is One-sided bright silver and bottom surface application of gum another is two-sided bright. Brightness is outstanding, the reflection and the illumination are extremely good and the clarity close mercury real mirror splendid. It's can be cut different ship according to custmoers requirments. This item also can be use in lamps and lanterns' counter-optical glass, strengthens lamps and lanterns' counter-luminosity, saves lamps and lanterns' energy consumption, enhances lamps and lanterns' brightness.
Infrared lenses Standard lot
contact lenses.
Contact lenses
Index : 1.49, 1.56 Color : grey/brown(photochromic available)
Bigger eyeballs and beautiful colours, this contact lens makes you seem individual with the various colors you want, concurrently with the merits of cosmetic contact lens and circle contact lens. Materials: 2-HEMA(2-Hydroxy ethyl(metharylate) Manufacturing Method: Front surface-Lathe cutting / 3Curve Design Base curve- semi casting mold Diameter: 14.0mm ~14.5mm Power Range: Plano ~ -.6.00D(0.25step) -6.00 ~ -10.00D(0.50step) Center thickness: 0.05mm(-3.0D) Base Curve Radious: 8.60mm
Opthlmic lenses
Opthlmic lenses
Cylindrical lenses
Optical lenses
Product name: Dried Calendula Flowers Family: Asteraceae. Botanical name: Calendula Officinalis. Origin: Egypt Color: Orange HS Code: 121190 Packing: 20 kg bags Cultivation: Common Form: Flowers & whole plants include flowers, petals & Petals Description: Calendula is considered a kind of annual and perennial herbaceous plant from 15-20 species in the Daisy family Asteraceae that are called marigolds. The Difference between Calendula and French Marigold: 1) Marigold or pot marigold (calendula) is back originally to Europe. But French marigold backed originally to America) In the case of marigold, pot marigold (Calendula), a native to Europe, and French marigold (Tagetes), an American native in the same family as the daisy, are very different plants. Calendula can be eaten and appear on lists of attractive edible flowers, but the French marigold cannot be eaten and is not an edible flower, the Marigolds refers to calendulas, under the name pot marigold. 2) If you are searching for a pot marigold, you will find it by its scientific name which is (Calendula Officinalis) - Ancient Egyptian and Calendula flowers: Calendula was used by ancient Egyptians for more than 4,000 years. It was mentioned in a prescription in Qurtas Hurst (book of Hirst) with other species as an ointment painted by the diseased parts. CONTACT US NOW 24/7 NO BROKERS PLS
Calendula Flowers Family: Asteraceae. Botanical name: Calendula Officinalis. Common name: Marigold Flower l Calendula Officinalis l Dried Calendula Flower l Calendula Herb l Marigold Calendula (Marigold refers to the Virgin Mary. And marigold is considered the most commonly cultivated and used member of the genus) Origin: Egypt Color: Orange HS Code: 12119000 Packing: 20 kg bags Cultivation: Common Form: Flowers & whole plants include flowers, petals & Petals. Are there any differences between Calendula and French Marigold? Calendula flower can be eaten and appears on lists of attractive edible flowers, but the French marigold cannot be eaten and is not an edible flower, the Marigold refers to calendula, under the name pot marigold. Does the Ancient Egyptian known Calendula flower? The calendula flower (Calendula Herb) was known and used by ancient Egyptians for more than 4,000 years. It was mentioned in a prescription in Quotas Hurst (book of Hirst) with other species as an ointment painted by the diseased parts.
Acrylic lenses, whose base plate material is PMMA, also known as pressure afterburner lenses, sub-afterburner lenses, in fact, refers to the general term of PMMA sheet after electroplating, using plastic lenses instead of glass lenses, has the advantages of light weight, not easy to break, easy shaping and processing, easy coloring, etc., the momentum of development is increasing, and has become a kind of technology in lens production. Plastic sheets can generally be made into: single-sided mirror, double-sided mirror, taped mirror, paper mirror, semi-lens, etc. can be done according to different requirements. For example, mobile phones and TV screens are visible everyday. Because acrylic is difficult to produce and its cost is high, there are many substitutes of high quality and low price in the market. These substitutes, also known as acrylic, are actually ordinary organic or composite boards (also known as sandwich boards). Ordinary organic board is cast with ordinary organic glass cracking material and pigment. Its surface hardness is low, and it is easy to fade. After polishing with fine sand, the polishing effect is poor. The composite board has only a very thin acrylic surface and ABS plastics in the middle. It is easy to delaminate due to thermal expansion and contraction in use. The true and false acrylic can be identified from the slight chromatic aberration and polishing effect of the plate section. 1. Architectural Applications: Shop Window, Soundproof Doors and Windows, Lighting Hood, Telephone Booth, Decorative Color Mirror, etc. 2. Advertising applications: light boxes, signboards, signboards, exhibition shelves, etc. 3. Traffic applications: train, car backup mirror, car lens, etc. 4. Medical applications: baby care box, various surgical medical appliances and civilian articles: handicraft, cosmetic mirror, bracket, aquarium, toy mirror, etc. 5. Industrial applications: instrument surface plate and cover, etc. 6. Lighting applications: fluorescent lamp, Pendant lamp, Street lampshade LED reflector, acrylic reflector, etc. If you need proofing, please give specific size specifications drawings.
Product name: Calendula Officinalis Flower Family: Asteraceae. Botanical name: Calendula Officinalis. Origin: Egypt Color: Orange HS Code: 121190 Packing: 20 kg bags Cultivation: Common Form: Flowers & whole plants include flowers, petals & Petals. Calendula is considered a kind of annual and perennial herbaceous plant from 15-20 species in the Daisy family Asteraceae that are called marigolds. Calendula is originally cultivated in Egypt. In a modern Latin diminutive of calendae, calendula means "little calendar" "little clock" or possibly "little weather-glass". Calendula's common name "marigold" refers to the Virgin Mary. Marigold is considered the most commonly cultivated and used member of the genus. Traditional and ancient uses 1) Traditionally, calendula species have been used as medicine herbs, and culinary. Whereas you can eat Calendula petals in a salad, or dry them to use in coloring cheese or as a replacement for saffron. 2) You can extract yellow dye from calendula flowers. 3) The golden calendula is used by Romans and Greeks in ceremonies and rituals. They wore crowns and garlands which are made from flowers. In catholic events, a calendula flower called Mary's Gold has been used in some countries. 4) There are skin products from calendula ointments that can cure burns, minor cuts, and skin irritation. 5) Medically, calendula oil of C. officinalis is used as an antitumor agent, an anti-inflammatory, and a healing wound remedy. Ancient Egyptian and Calendula flowers: Calendula was used by ancient Egyptians for more than 4,000 years. It was mentioned in a prescription in Qurtas Hurst (book of Hirst) with other species as an ointment painted by the diseased parts. The Difference between Calendula and French Marigold: 1) Marigold or pot marigold (calendula) is back originally to Europe. But French marigolds backed originally to America) In the case of marigold, pot marigold (Calendula), a native to Europe, and French marigold (Tagetes), an American native in the same family as the daisy, are very different plants. Calendula can be eaten and appear on lists of attractive edible flowers, but the French marigold cannot be eaten and is not an edible flower, the Marigolds refers to calendulas, under the name pot marigold. 2) if you are searching for a pot marigold, you will find it by its scientific name which is (Calendula Officinalis)
