[a]https%3A%2F%2Fwww.tcoptik.com%2Fproducts%2Fbk7-window.html[/a] <br> <br>#custom #optics #supplier <br> <br>What Is BK7? <br>At TC Optik, we are proud to offer high-quality BK7 windows that are manufactured to the highest standards of precision and quality. Our BK7 windows are made from high-quality borosilicate optical glass with exceptional optical transmission characteristics, and are ideal for a wide range of applications, including imaging, spectroscopy, laser optics, and more. H-K9L is the alternative for N-BK7.H-K9L (N-BK7) is a RoHS-compliant borosilicate crown glass. It provides excellent transmission in the visible and near-infrared portions of the spectrum (350 nm - 2.0 µm). It is typically chosen whenever the additional benefits of UV fused silica. H-K9L (N-BK7) is probably the most common optical glass used in high-quality optical components. <br> <br>Specification of BK7 Window <br>Optical windows are an essential component in various optical applications such as laser systems, medical instruments, and scientific research devices. They play a crucial role in protecting optical systems from external elements and ensuring precise measurements by allowing light to pass through with minimal distortion. When it comes to optical windows, the material used is a critical factor in determining the performance and quality of the window. One such material that stands out is N-BK7 glass, which is widely recognized for its superior optical properties and versatility. In this article, we will take a closer look at N-BK7 optical windows and explore their characteristics, applications, and advantages over other materials. <br> <br>Material BK7 <br>Diameter 1 to 500 mm <br>Diameter Tolerance +0/-0.02 mm <br>Thickness Tolerance ±0.01 mm <br>Surface Quality 10-5 <br>Surface Figure λ/10 <br>Parallelism 1 Minute <br>Coating Uncoated, AR, HR, Beamsplitter, etc. <br> <br>Our BK7 windows offer excellent performance and superior durability, thanks to their high scratch resistance and low coefficient of thermal expansion. They are available in a range of standard sizes and thicknesses, or can be custom-manufactured to your exact specifications. <br> <br>At TC Optik, we use state-of-the-art manufacturing techniques and equipment to ensure that our BK7 fused silica windows are of the highest quality. Our experienced engineers and technicians use advanced glass grinding and polishing techniques to achieve the precise dimensional and optical specifications required by our customers, and we are committed to providing exceptional customer service and support. <br> <br>We offer competitive pricing and fast turnaround times on all of our custom optical window, and are happy to work with you to find the right solution for your specific needs. Contact us today to learn more about our optical window glass and how they can help you achieve your optical needs. <br> <br>Types of optical window glass for your needs: <br> <br>Fused silica window <br> <br>Sapphire optical window <br> <br>ZnSe window <br> <br>Germanium window <br> <br>Silicon window <br> <br>Borosilicate glass for sale <br> <br>Float glass optical windows <br> <br>Understanding N-BK7 Optical Windows <br>N-BK7 is a type of borosilicate crown glass that contains a precise composition of boron and potassium. This glass is specifically designed to offer exceptional optical transmission in the visible and near-infrared regions. With a refractive index of 1.5168, N-BK7 glass has excellent optical clarity, low dispersion, and high homogeneity, making it an ideal material for optical applications.

[a]https%3A%2F%2Fwww.tcoptik.com%2Fproducts%2Faspherical-lens.html[/a] <br> <br>#optics #china <br> <br>Aspherical Camera Meaning <br>Our aspheric lenses have surface profiles that are not portions of a sphere or cylinder, making them highly sought after in photography. Aspherical lenses include an aspheric element, and TC Optics is dedicated to producing lenses with surface form error within 100 microns. If you&#039;re wondering about aspheric lenses cost or the meaning of aspherical lens, contact TC Optics for more information. <br> <br>Specification of Aspherical Lens <br>Material BK7, B270 or PYREX <br>Diameter Range 10-300 mm <br>Diameter Tolerance +0.00/-0.15 mm <br>Center Thickness +/-0.5% <br>Focus +/-7% <br>Aspheric lens Face Form Checked by Caliper <br>Surface Finish: Processing Surface x: λ/2; y: 2λ <br> <br>Aspherical Lens Standard Products <br>Part No. Material EFL OD1 OD2 CT ET <br>TCA101 B270 18.51 24 10.4 1.54 <br>TCA102 PYREX 37.1 50 23 2.5 <br>TCA103 PYREX 36.4 52 24 2 <br>TCA104 B270 74.47 35 30.68 10.05 2.3 <br>TCA105 PYREX 48 50 19 2 <br>TCA106 PYREX 61.78 68.5 24.12 2 <br>TCA107 B270 6.25 6.5 2.679 0.942 <br>TCA108 PYREX 126.57 75 14.25 2.8 <br>TCA109 B270 190.1 80 15.24 3.8 <br> <br>Aspheric Lenses Advantages and Disadvantages <br> <br>Aspheric lenses are optical that have a non-spherical surface that allows them to have a flatter profile and a wider field of view. They have become increasingly popular in eyewear due to their numerous advantages over traditional spherical lenses. That said, there are still some disadvantages to consider when deciding whether aspheric lenses are right for you. <br> <br>Advantages: <br> <br>Improved vision: Aspheric lenses provide better visual acuity, especially in peripheral vision. The reduction of distortion and spherical aberration can significantly improve sharpness and clarity, reducing eye fatigue. <br> <br>Thinner and lighter: Aspheric lenses are designed to reduce the curvature of the lens, resulting in a flatter profile. This means that they are thinner and lighter than traditional lenses, allowing for more comfortable and stylish eyewear. <br> <br>Wide range of applications: Aspheric lenses are used in many different industries, including photography, aerospace, and medicine. They are also available in a variety of materials such as polycarbonate, high-index, and Trivex for durability and improved optics china.

[a]https%3A%2F%2Fwww.tcoptik.com%2Fproducts%2Fachromatic-lens.html[/a] <br> <br>#optical #components #company <br> <br>Achromatic Lens for Sale <br>An achromatic lens is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic doublet lenses have significantly better optical performance than singlet lenses in visible imaging and laser beam manipulation applications. We provide custom achromatic lenses consisting of two elements, usually of a positive low-index crown glass cemented to a negative high-index flint glass that have been corrected for chromatic aberration with respect to two or more selected wavelengths. Contact us for a quote and to learn more about our achromatic lens price options. <br> <br>Specification of Achromatic Lens <br>Material BK7 Grade A Optical Glass <br>Design Wavelength 480.0nm, 546.1nm, 643.8 nm <br>Diameter Tolerance +0.0, -0.15 mm <br>Thickness Tolerance ±0.2 mm <br>Paraxial Focal Length ±2% @546.1 nm <br>Centration &lt;3 arc Minutes <br>Clear Aperture &gt;85% <br>Surface Irregularity λ/[email protected] nm <br>Surface Quality 60-40 Scratch And Dig <br>Protective Bevel 0.25 mm x 45° <br> <br>Achromatic Lens Capacity <br>Material Optical Glass. <br>Diameter 0.5 to 350 mm <br>Diameter Tolerance +0/-0.02 mm <br>Thickness Tolerance ±0.01 mm <br>Surface Quality 10-5 <br>Surface Figure λ/10 <br>Centration 1 Minute or 30 Second <br>Coating Uncoated, AR and HR <br> <br>Positive Achromatic Lens Standard Products <br> <br>Part No. f (mm) Ф (mm) R1 (mm) R2=R3 (mm) R4 (mm) tc1 t c2 f b Lens A Lens B <br> (mm) (mm) (mm) <br>TPA101 10 6 6.546 -4.055 -23.23 3.6 0.8 7.54 SK9 SF15 <br>TPA102 20 10 12.32 -0.902 -25.23 3.8 1 17.625 BK7 SF5 <br>TPA103 30 12.7 18.535 -13.49 -37.84 4 1.3 27.36 BK7 SF5 <br>TPA104 40 12.7 25.23 -17.539 -48.75 3.4 1.3 37.778 BK7 SF5 <br>TPA105 50 18 31.69 -22 -60.57 4.8 1.5 46.987 BK7 SF5 <br> <br>Negative Achromatic Lens Standard Products <br>Part No. f (mm) Ф (mm) R1 (mm) R2=R3 (mm) R4 (mm) tc1 t c2 f b Lens A Lens B <br> (mm) (mm) (mm) <br>TNA101 -25 12.7 -15.6 13.09 44.16 3 2.67 -27.5 BK7 F2 <br>TNA102 -40 12.7 -24.45 17.97 66.6 3 2.34 -42.5 BK7 F2 <br> <br>Achromatic Lens Design and Achromatic Lens Combination <br> <br>As one of leading chinese optics manufacturers, TC Optics offers top-of-the-line achromatic lens design for all types of applications. Our achromatic barlow lens and achromatic convex lens are just some of the many high-quality lenses we offer. Our achromatic lens combination is unparalleled in the market and provides exceptional quality and clarity in all settings. <br> <br>Our lenses applied in achromatic combination are designed to meet the highest standards of precision optics. With excellent chromatic correction, our optical lenses help reduce the harmful effects of color dispersion and provide razor-sharp images for all your imaging needs.