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.
Our company was founded in 2000 as an optics scientific development, named xin xing liang electric- optics of jilin province, co., ltd. It has evolved into a unique company, specializing in the manufacture of cylindrical lens etc.
Achromatic lenses are cemented with two lenses mainly used to reduced values of spherical aberration, coma, and chromatic aberration. Sunday offer positive achromatic lenses and negative achromatic lens with coatings
Structure doublet lenses
Material Optical glass, UVFS,Germanium, Silicon,CaF2,MgF2,ZnSe ZnS,Sapphire
Diameters Available 0.1mm to 600mm D: Customer Design.
Cr-39 1.499 finished single vision plastic resin lenses
1) refractive index: 1.499
2) abbe value: 58
3) specific gravity: 1.32
4) raw materials are imported: ppg and at
5) up-to-date surface curvature design
6) diameters: 50mm, 55mm, 60mm, 65mm, 70mm
7) power range:
For 50mm, 55mm and 60mm:
A) s: plano ~ +8.00/c: -0.25 ~ -2.00
B) rx power: cyl: -2.25 up to -4.00, -4.25 up to -6.00
For 65mm and 70mm:
A) s: plano ~ -6.00/c: -0.25 ~ -2.00
B) s: +0.25 ~ +6.00/c: -0.25 ~ -2.00
C) rx power: cyl: -2.25 up to -4.00, -4.25 up to -6.00
8) available for uncoated(uc), hard-coated(hc), hard coating-tintable (hct) and hard-multi coating (hmc)(ar-coating) and emi processing.
9) semi-finished lenses:
Base: 2.00, 4.00, 6.00, 8.00.
This is ARC optical lenses with emi coating blocks negatives lights from all led displays like mobiles laptops t.v
helps to stops further increase of power
both side coating
best of all lenses
We are in the top lenses line with the best quality and price, please feel free to contact with us now.
Divel is an Italian based company that creates, produces and operates in
the international market of ophthalmic lenses and sun-lenses.
MISSION
Our goal is to create lenses that can truly improve people's life and for most,
than vision conditions an every rage of them.
HOW DO WE DO IT? EASY.
In our labs, we work with the most advanced technologies to design a product
that embodies the true essence of Italian style.
Our products are carefully designed in every detail and showcase the deep
imagination and love for stylish perfection that has always represented Italian
designers.
Achromatic lens
Achromatic lenses are cemented with two lenses mainly used to reduced values of spherical aberration, coma and chromatic aberration. Sunday offer positive achromatic lenses and negative achromatic lens with coatings.
Material Optical glass
Dia.1-600mm
Surface quality:20-10
Flatness:1/20lambda.
Centration
1.523/1.70 mineral glass lens
1) Abbe value: 53
2) Diameter 56MM 60MM 65MM are available
3) Power range: sph: 0_15.00 cyl: 0_6.00
4) AR and AR EMI coating available in greenish and bluish color
5)1.523 Round top and 1.523 flat top bifocal lens
6) Absorb UV ray
7) We can offer 1.523 photo gray and 1.523 photo brown lens.
1) voltage output range: dc 6v/12v/24v/50v(auto range switch)
2) current output range: dc 0.1ma - 2.500a
3) current drift at full range: 0.05% reading/8 minutes
4) accuracy of a: (0.08% reading 0.02% range)
1) voltage output range: dc 6v/12v/24v/50v(auto range switch)
2) current output range: dc 0.1ma - 2.500a
3) current drift at full range: 0.05% reading/8 minutes
4) accuracy of a: (0.08% reading 0.02% range)
