2. VY Optics Photoelectric Technology Co., Ltd. specialized in manufacturing kinds of optical precision components and lenses. Through many years' hard work and positive innovation, we have became a optical company integrating lens design, production and sales. Our company has strong production capacity, in possession of the domestically top production line and excellent workers, which mainly are composed of researchers and technicists of the Chinese Academy of Sciences, Changchun Institute of Optics and Fine Mechanics and Changchun University of Science and Technology, they are experienced and can produce wide range of optical articles. The prime products are spherical lens, windows, prisms, achromatic lens, cylindrical mirror, laser optical components, infrared optical components, various crystals and some other relative items. In addition, our company has independently developed a magnifier, microscope, telescope and kinds of conversion lenses. Mainly used in military, aerospace, industry, scientific, medical instrument, photoelectric device, optical communication and mechanical equipment and so on. 80% of our items are sold abroad, in the meantime we also cooperate with internal companies, we offer OEM service! Over the years, with the concept of " integrity, innovation, quality first ", we constantly provide our clients with the best products and perfect service, sincerely welcome domestic and foreign customers to establish cooperation with us, creating a bright future in optical field!

3. Optical component Achromatic lenses Prism Wedge prism,Roof prism,Amici prism,Beam splitter Cube etc. Cylindrical lens Plano-concave cylindrical lens,Meniscus cylindrical lens etc. Windows Filter OLPF Filter,Color Separation filter,Neutral Density filter,Bandpass Filter,IR-CUT filter etc. Spherical lens LiNbO3 lens,LiNbO3 powder Aspherical lens Waveplate Rod lens Conversion lens & accessories Telephoto lens Wide angle lens Fisheye lens Adapter ring & tube CCTV lens Customized lens Projector fisheye lens Projection sphere screen

4. Achromatic Lens is an achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic abberration at two well-separated wavelengths, usually in the blue and red region of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction limited focusing of a laser beam. Negative Achromats are typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, sphericalaberration and coma are greatly reduced. Material:BK7 & ZF2(or as requested) Diameter.:+0/-0.05 Center thickness tolerance:+/-0.1 Surface quality: 60-40 Surface figure:0.5-0.2 Centration < 3arc min Chamfer:0.1-0.25*45 degrees Design wavelength:486.1mm,587.6mm,656.3mm (The parameter is demision of nomal lens,so specification will be changed accordding to different demision and material) Achromatic lens

5. Prism Wedge prism Roof prism/Amici prism Beam splitter Cube Prisms are blocks of optical material with flat polished sides arranged at precisely controlle angles to each other, which deflect, deviate and rotate beams of light as well as dispersing their wavelengths. Tempotec offers many types of high precision prisms.

6. Material:BK7 or(JGS1 JGS2 JGS3) Glass Qualityz:nd+/-0.001~+/-0.0001 vd +/-0.8%~+/-0.1% Dimension Tolerance:+/-0.20mm~+0.01/-0.01mm Thickness Tolerance:+/-0.20mm~+/-0.005mm Surface Quality:80-50~10-5 Surface Flatness: at 632.8nm lambda~ lambda /20 per 25mm Clear Aperture 80% ~100% Angle Tolerance 3-5 minutes~3 second Chamfer 0.3+/-0.20mm x45degree No Chamfer Coating Optional Wedge prism is commonly used in laser system for eliminating the reflections from the second surface or for beam steering. Standard and broadband antireflection coatings are available upon request, see our standard optics components above. Wedge prism

7. Amici prism, named for the astronomer Giovanni Amici, is a type of compound dispersive prism used in spectrometers. The Amici prism consists of two triangular prisms in contact, with the first typically being made from a medium-dispersion crown glass, and the second a higher-dispersion flint glass. Light entering the first prism is refracted at the first air-glass interface, refracted again at the interface between the two prisms, and then exits the second prism at near-normal incidence. Material:BK7 or as requested Dimension Tolerance:+/-0.1mm Angular Tolerance:+/-3' Surface Accuracy:lambda/4@632.8nm Surface Quality:40-20 Clear Aperture:>90% Bevelling:<0.2*45° Coating:Custom Design Amici prism/Roof prism

8. Material:BK7 glass or UV grade fused silica Dimension Tolerances:+/-0.1mm Angle Tolerance: +/-3’or 30” Clear Aperture:90% Dimension Surface Quality:60/40 or 20/10 Surface Flatness:λ/8 or λ/4 @633nm Chamfer:0.3+/-0.1mm Coating Optional Beamsplitter Cube is a more sophisticated type consisting of two right- angle prisms cemented together at their hypotenuse faces. The cemented face of one prism is coated. Before cementing, with a metallic or dielectric layer having the desired reflecting properties, both in the percentage of reflection and the desired color. The absorption loss to the coating is minimal and transmission and reflection approach 50%. Beamsplitter cube

9. Material:BK7 or other optical materials Dimension Tolerance +0.0~-0.1mm Center Thickness +/-0.1mm Focal Length Tolerance+/-1% Surface Quality:60/40 Surface Figure lambda/2 at 633nm on plano side Clear Aperture >90% Chamfer 0.25mm at 45 degree typical Coating Optional Cylindrical lens is used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line.They are available in either plano concave or plano convex configurations. Plano-Concave Cylindrical lenses have a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylindrical lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications. Cylindrical lens

10. Material: BK7 or other materials Length tolerance:+/-0.01 Width tolerance:+/-0.01 Center thickness tolerance:0.005mm Surface quality:80-50~10-5 Surface flatness<lambda~lambda/20 Parallelism<=1min~2sec Clear Apenture:80%~100% Windows are applied to isolate different physical environments while allowing light to pass. When selecting windows you should consider materials, transmission, scattering, wave front distortion, parallelism and resistance to certain environment. China star optics offers a wide range of different materials and different degree of precision windows. Windows

11. Filters are designed by their manufacturers to transmit or absorb different wavelengths of light. And they are widely used in scientific experiments and industrial applications where that change is necessary. Fitlers OLPF Filter Color Separation Filter Neutral Density Filter Bandpass Filter IR-CUT Filter

12. Material:Filter Glass,BK7,as requested Dimension: 4mm-160mm - 0.20mm Squares/Rectangles:1mm-165mm Thickness:0.5mm-4mm Thickness tolerance:+/-0.01mm-0.1mm Paralism: Up to 3 Arc minutes Edges:Fine Ground Flatness:Up to Lambda/10 Surface quantity: 80/50-20/10 Scratch/Dig Optical Low Pass Filter (OLPF) is had the function to eliminate this noise. Different thin line direction should use the rightness OLPF to remove. Also for the different model number of CCD, CMOS photo sensor parts have some differences on the specification, for compromise the different model number and the low pass effect, so it need to be used various dissimilarity incise angle (such as 45°, 0°, 90° and WPL), and design a combination of low pass filter which contain “layer, thickness and IR CUT”,then we can clean the noise which bring form screen. OLPF Filter

13. Color separation filters, also known as dichroic filters, are designed to separate visible light into usable spectrum for such applications as: color correction, light balancing, control systems, studio and architectural lighting, display systems, color film processors, color photocopiers, color television cameras and many more applications. Material:Filter Glass,BK7,as requested Dimension: 4mm-160mm - 0.20mm Squares/Rectangles:1mm-165mm Thickness:0.5mm-4mm Thickness tolerance:+/-0.01mm-0.1mm Paralism: Up to 3 Arc minutes Edges:Fine Ground Flatness:Up to Lambda/10 Surface quantity: 80/50-20/10 Scratch/Dig Color Separation Filters

14. Neutral density (ND) filters are used to attenuate incident radiation without altering its spectral distribution.The neutral density value of an ND filter is related to the transmittance. Material:Filter Glass,BK7,as requested Dimension: 4mm-160mm - 0.20mm Squares/Rectangles:1mm-165mm Thickness:0.5mm-4mm Thickness tolerance:+/-0.01mm-0.1mm Paralism: Up to 3 Arc minutes Edges:Fine Ground Flatness:Up to Lambda/10 Surface quantity: 80/50-20/10 Scratch/Dig Neutral Density Filter Bandpass filters Bandpass filters are optical elements that are designed to transmit a specific spectral band with high efficiency, while reject others. The characteristics of the bandpass are controlled by multilayer dielectric coatings. Material:Filter Glass,BK7,as requested Dimension: 4mm-160mm - 0.20mm Squares/Rectangles:1mm-165mm Thickness:0.5mm-4mm Thickness tolerance:+/-0.01mm-0.1mm Paralism: Up to 3 Arc minutes Edges:Fine Ground Flatness:Up to Lambda/10 Surface quantity: 80/50-20/10 Scratch/Dig

15. IR-CUT Filter is the key part for digital mobile telephone with photographic lens, PC cameras, telephone with image etc. It’s mainly is that the optical glass’ surface will be done a coating with IR CUT, it only let the light-wave in stated scope to pass. Add the IR-CUT Filter between lens and CCD or CMOS image sensor, can effectively to repress the wave disturbance which cause by the pass of the light-wave whose frequency is higher than CCD or CMOS image sensor, and also it can repress infrared light-wave, then make the image more clearly and stability. Material: IR-CUT Filter is made of optical glass with the coating of IR-CUT on the surface, such as B270, D263T, BK7,IR-Glass(Blue-Glass)etc. Its shape can accord to the customer's special request to produce. Optical Characteristic:Flatness NR number: ≦ 3 Spectrum Characteristic: 400~620nm Tmin>85% 645 ± 10nm T=50% 740~1050nm Tmax<3% Tave<1% ( Can order to make according the customer request) IR-CUT Filter

16. Spherical lens Material: BK7,Quartz,Caf2,Crystal Diameter:5mm-300mm Diameter tolerance:0.01mm-0.1mm Edge Thickness:1mm+/-0.10mm Focal length:0.1%-2% Surface quantity:80/50 to 20/10 Centration:1-3Arc minutes Fringes:1-5 Coating:No or AR Spherical Ball Lenses are commonly used for laser collimating and focusing, Larger spheres are easier to handle and ease the sensitivity of translational alignment.Spherical Lenses offer a variety of applications including endoscopes, microscopes, sensors, light condensers and light receiver/throwers. These spherical lenses can be made into oval, square, rectangular or other shapes. PCX spherical lens PCV spherical lens Bi-convex spherical lens Bi-concave spherical lens Ball lens Meniscus lens

17. Lithium Niobate(LiNbO3) Crystal lens is widely used as frequency doublers for wavelength > 1 mm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase- matched (QPM) devices. Due to its large Electro-Optic (E-O) and Acousto-Optics (A-O) coefficients. Basic Properties of optical LiNbO3 crystal lens as follow: Crystal Structure:Trigonal, point group 3m Lattice Parameters:a=b=5.148, c=13.863 Density:4.64 g/cm3 Melting Point:1250 degrees Curie Point:1142+/- degrees Mohs Hardness:55 Dielectric Constant :e11/e0 = 85; e33/e0 = 29.5 Thermal Conductivity:38 W/m egrees at 25 egrees Thermal Expansion Coefficient:a1=a2 =2x10-6 egrees, a3=2.2x10-6/ degrees at 25degrees Piezoelectric Strain Constant:d22 = 2.04 x 10-11 C/N, d33 = 19.22 x 10-11 C/N Elastic Stiffness Constant:CE11 = 2.04 x 1011 N/m2, CE33 = 2.46 x 1011 N/m2 LiNbO3 lens

18. Material: BK7,Quartz,Caf2,Crystal,as requested Diameter:5mm-300mm Diameter tolerance:0.01mm-0.1mm Edge Thickness:1mm+/-0.10mm Focal length:0.1%-2% Surface quantity:80/50 to 20/10 Centration:1-3Arc minutes Fringes:1-5 Coating:No or AR Aspherical lenses are typically lighter weight than traditional lenses and do not conform to the typical sphere shape of lenses, meaning that their profile does not contain a sphere or any part of a sphere. Aspherical lenses are used to reduce certain types of aberration typically showing a much clearer picture than their traditional lens counterparts Aspherical lens

19. Its properties are much better than the multi-order waveplate because of its thinner thickness (less than 0.5mm). Better temperature (380C), wavelength (1.5nm) and incident angle (4.50) bandwidth and high damage threshold make it widely used in common application. Also, it is economical. Low Order Waveplate Material: Crystal Quartz Dimension Tolerance: +0.0, -0.2 mm Wavefront Distortion: <l/8 @ 632.8 nm Retardation: l/8, l/4, l/2, or l (typical) Retardation Tolerance: <l/500 (typical) Thickness: 0.2~0.4mm (determined by retardation) Wavelength Range: 240-2100 nm Parallelism: <1 arc second Surface Quality: 20-10 scratch and dig AR/AR Coating R<0.2% per face is available upon request. Other retardations are also available. Waveplate

20. Rod Lenses are highly polished small diameter rods made of optically transparent homogeneous materials. A carefully controlled manufacturing process produces rods (or fibers) with precise diameters and unsurpassed surface quality. Optical performance is similar to a cylinder lens. Collimated light passing through the diameter of the rod will be focused into a line. We supply optical rod lens,specification of our rod lens as follow: Dimension Range: 3-50mm Polish on both sides,cylindrical side or all side Diameter tolerance:+0/-0.02mm Thickness tolerance:+/- 0.02mm Centration: 90% Chamfer: 0.1-0.25mm*45 degrees Coat:as requested Material:Float glass,K9,FS,SapphireSF11,CaF2,MgF2 or other optical glass After several years of R& D,now VY Optics could manufacture 0.125mm fused silica rod lens with double waveband coating(R< 0.5 @ 808 ± 10 nm & 980 ± 10 nm),and successfully tested.Welcome inquire here and a competitive price will be supplied! Optical rod lens

21. Fisheye lens is a wide-angle lens that takes in an extremely wide, hemispherical image.The focal lengths of fisheye lenses depend on the film format.Fisheye lenses achieve extremely wide angles of view by forgoing a rectilinear image, opting instead for a special mapping (for example: equisolid angle), which gives images a characteristic convex appearance. A panorama by rotating lens or stitching images (cylindrical perspective) is not a fisheye photo. Fisheye lens showed in picture is used for Sanyo projector XM-1000C,5000 Lumen.We could manufacture and design kinds of fisheye lens as reqeusted. Projector fisheye lens and Sphere screen

22. Conversion lenses Telephoto lens Wide angle lens Fisheye lens Adapter ring & tube Custom lens and OEM service CCTV lens VY Optics design lens follow your thinking,welcome here to enquire!

23. Contact us Add: No.128 Taibei Street,Kuancheng Area,Changchun 130052,Jilin,China Tel: 86-431-86785771 Fax:86-431-84631230 Mail: sales@vyoptics.com info@vyoptics.comsales@vyoptics.cominfo@vyoptics.com Web: www.vyoptics.comwww.vyoptics.com Copyright@VY Optics