{"title":"Neutral Density Filters","description":"\u003cdiv class=\"two-div\"\u003e\n\u003cdiv class=\"two-div-left\"\u003e\n\u003ch2 style=\"text-align: left;\"\u003eNeutral Density Filters\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"two-div-right\" style=\"text-align: left;\"\u003e\n\u003cp\u003eNeutral density filters (ND filters) are optical components designed to reduce light intensity without altering spectral characteristics. They are widely used in optical systems, laser attenuation, imaging, and laboratory applications where precise light control is required. Our ND filter collection includes absorptive neutral density filters made from optical gray glass, providing stable and uniform attenuation across multiple spectral ranges. Available products cover: Ultraviolet (UV) Visible (VIS, 400–700 nm) Near Infrared (NIR) Different material types are used to achieve optimal performance across these wavelength ranges.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 data-end=\"941\" data-start=\"909\" data-section-id=\"nj3xwe\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"941\" data-start=\"912\"\u003eAvailable Spectral Ranges\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1009\" data-start=\"943\"\u003eOur ND filters are available for multiple wavelength applications:\u003c\/p\u003e\n\u003cul data-end=\"1176\" data-start=\"1011\"\u003e\n\u003cli data-end=\"1070\" data-start=\"1011\" data-section-id=\"ouvkos\"\u003e\n\u003cstrong data-end=\"1026\" data-start=\"1013\"\u003eUV Range:\u003c\/strong\u003e ~200–400 nm (quartz \/ fused silica based)\u003c\/li\u003e\n\u003cli data-end=\"1134\" data-start=\"1071\" data-section-id=\"ax69a9\"\u003e\n\u003cstrong data-end=\"1091\" data-start=\"1073\"\u003eVisible Range:\u003c\/strong\u003e 400–700 nm (standard gray optical glass)\u003c\/li\u003e\n\u003cli data-end=\"1176\" data-start=\"1135\" data-section-id=\"5aesab\"\u003e\n\u003cstrong data-end=\"1161\" data-start=\"1137\"\u003eNear Infrared (NIR):\u003c\/strong\u003e 700–1100 nm+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1278\" data-start=\"1178\"\u003eCustom wavelength ranges are available depending on material selection and application requirements.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 data-end=\"1318\" data-start=\"1285\" data-section-id=\"17tanp2\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1318\" data-start=\"1288\"\u003eHow to Choose an ND Filter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1503\" data-start=\"1320\"\u003e\u003cstrong data-end=\"1347\" data-start=\"1320\"\u003eBy Optical Density (OD)\u003c\/strong\u003e\u003cbr data-end=\"1350\" data-start=\"1347\"\u003eOD0.04 – OD1 → Light attenuation and imaging adjustment\u003cbr data-end=\"1408\" data-start=\"1405\"\u003eOD1 – OD3 → General optical control\u003cbr data-end=\"1446\" data-start=\"1443\"\u003eOD3+ → High attenuation for laser and precision systems\u003c\/p\u003e\n\u003cp data-end=\"1617\" data-start=\"1505\"\u003e\u003cstrong data-end=\"1528\" data-start=\"1505\"\u003eBy Transmission (%)\u003c\/strong\u003e\u003cbr data-end=\"1531\" data-start=\"1528\"\u003e50% – 90% → Low attenuation\u003cbr data-end=\"1561\" data-start=\"1558\"\u003e1% – 10% → Medium attenuation\u003cbr data-end=\"1593\" data-start=\"1590\"\u003e\u0026lt;1% → High attenuation\u003c\/p\u003e\n\u003cp data-end=\"1783\" data-start=\"1619\"\u003e\u003cstrong data-end=\"1638\" data-start=\"1619\"\u003eBy Shape \u0026amp; Size\u003c\/strong\u003e\u003cbr data-end=\"1641\" data-start=\"1638\"\u003eRound filters → Standard optical mounts (e.g., 12.7 mm, 25.4 mm, 50 mm)\u003cbr data-end=\"1715\" data-start=\"1712\"\u003eSquare filters → Laboratory and flexible setups (e.g., 50 × 50 mm)\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 data-end=\"1813\" data-start=\"1790\" data-section-id=\"rwlzpt\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1813\" data-start=\"1793\"\u003eAbout ND Filters\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2023\" data-start=\"1815\"\u003eND filters reduce light intensity by absorbing a portion of the incident beam while maintaining a neutral spectral profile. This ensures that optical signals and images remain unchanged except for brightness.\u003c\/p\u003e\n\u003cp data-end=\"2134\" data-start=\"2025\"\u003eAbsorptive ND filters use \u003cstrong data-end=\"2093\" data-start=\"2051\"\u003egray optical glass or quartz materials\u003c\/strong\u003e depending on wavelength range, offering:\u003c\/p\u003e\n\u003cul data-end=\"2226\" data-start=\"2136\"\u003e\n\u003cli data-end=\"2170\" data-start=\"2136\" data-section-id=\"xx0py7\"\u003eStable attenuation performance\u003c\/li\u003e\n\u003cli data-end=\"2197\" data-start=\"2171\" data-section-id=\"1lubnm6\"\u003eLow surface reflection\u003c\/li\u003e\n\u003cli data-end=\"2226\" data-start=\"2198\" data-section-id=\"bc7b7c\"\u003e\n\u003ch3\u003eBroad spectral usability\u003c\/h3\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3 data-section-id=\"11knssi\" data-start=\"2233\" data-end=\"2271\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2236\" data-end=\"2271\"\u003eOptical Density vs Transmission\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2273\" data-end=\"2336\"\u003eOptical density (OD) and transmission (T) describe attenuation:\u003c\/p\u003e\n\u003cul data-start=\"2338\" data-end=\"2438\"\u003e\n\u003cli data-section-id=\"17x0qmo\" data-start=\"2338\" data-end=\"2357\"\u003eOD = log₁₀(1\/T)\u003c\/li\u003e\n\u003cli data-section-id=\"dd2naq\" data-start=\"2358\" data-end=\"2384\"\u003eOD1 → 10% transmission\u003c\/li\u003e\n\u003cli data-section-id=\"18vigtd\" data-start=\"2385\" data-end=\"2410\"\u003eOD2 → 1% transmission\u003c\/li\u003e\n\u003cli data-section-id=\"p80se\" data-start=\"2411\" data-end=\"2438\"\u003eOD3 → 0.1% transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2440\" data-end=\"2492\"\u003eHigher OD values correspond to stronger attenuation. \u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 data-section-id=\"4ewuj3\" data-start=\"2898\" data-end=\"2922\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2901\" data-end=\"2922\"\u003eCustom ND Filters\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2924\" data-end=\"2986\"\u003eWe provide custom solutions based on application requirements:\u003c\/p\u003e\n\u003cul data-start=\"2988\" data-end=\"3146\"\u003e\n\u003cli data-section-id=\"1m86ehm\" data-start=\"2988\" data-end=\"3019\"\u003eCustom sizes and geometries\u003c\/li\u003e\n\u003cli data-section-id=\"10760xc\" data-start=\"3020\" data-end=\"3058\"\u003eSpecific OD or transmission values\u003c\/li\u003e\n\u003cli data-section-id=\"10zlvyz\" data-start=\"3059\" data-end=\"3105\"\u003eUV, visible, or IR wavelength optimization\u003c\/li\u003e\n\u003cli data-section-id=\"13lcqrz\" data-start=\"3106\" data-end=\"3146\"\u003eOptical coatings (AR, reflective ND)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3148\" data-end=\"3192\"\u003eContact us for customized optical solutions.\u003c\/p\u003e\n\u003chr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[],"url":"https:\/\/glasshop.net\/collections\/neutral-density-filters.oembed","provider":"Canal Glass Shop","version":"1.0","type":"link"}