Notifications
Mark all as read
Zeeko has joined our supplier lineup. Check out their catalog products.
Introducing high-E Photonics! Explore their products on our website.
%20rotate(45)'/%3e%3crect%20class='cls-4'%20x='9.85'%20y='26.36'%20width='38.34'%20height='5.31'%20transform='translate(58.03%2058.03)%20rotate(-180)'/%3e%3cpolygon%20class='cls-4'%20points='17.64%2022.13%2017.64%2016.8%2026.34%2016.8%2026.34%208.1%2031.66%208.1%2031.66%2016.8%2040.37%2016.8%2040.37%2022.13%2017.64%2022.13'/%3e%3cpolygon%20class='cls-4'%20points='17.64%2041.2%2017.64%2035.88%2040.37%2035.88%2040.37%2041.2%2031.67%2041.2%2031.67%2049.9%2026.34%2049.9%2026.34%2041.2%2017.64%2041.2'/%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Welcome aboard Piezolution! Find their catalog products now featured on MEETOPTICS.
New manufacturer announcement: Get to know SMART Photonics and their latest product offerings.
%20--%3e%3csvg%20version=%271.1%27%20id=%27layer%27%20x=%270px%27%20y=%270px%27%20viewBox=%270%200%20512%2072%27%20xml:space=%27preserve%27%20width=%27512%27%20height=%2772%27%20xmlns=%27http://www.w3.org/2000/svg%27%20xmlns:svg=%27http://www.w3.org/2000/svg%27%3e%3cdefs%20id=%27defs9%27%20/%3e%3cg%20id=%27g10%27%20transform=%27matrix(0.83352366,0,0,0.83352366,-11.170586,-232.01953)%27%3e%3cg%20id=%27g6%27%3e%3cpath%20d=%27m%20130.2,295.4%20h%201.5%20c%201.2,0%202.2,1%202.2,2.2%20V%20340%20c%200,1.2%201,2.2%202.2,2.2%20h%2025%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-30.9%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-47.8%20c%20-0.1,-1.2%200.9,-2.2%202.2,-2.2%27%20id=%27path1%27%20/%3e%3cpath%20d=%27m%20193.3,295.4%20h%201.5%20c%201.2,0%202.2,1%202.2,2.2%20v%2047.8%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-1.5%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-47.8%20c%200,-1.2%201,-2.2%202.2,-2.2%27%20id=%27path2%27%20/%3e%3cpath%20d=%27m%20226.4,321.7%20v%20-0.2%20c%200,-14.3%2010.5,-27%2026.2,-27%207.1,0%2012,1.6%2016.3,4.6%201.8,1.2%202.2,3.6%200.7,5.2%20-0.7,0.9%20-2.1,1%20-3,0.3%20-3.6,-2.8%20-7.9,-4.6%20-14.3,-4.6%20-11.6,0%20-19.9,9.8%20-19.9,21.4%20v%200.1%20c%200,12.5%208,21.7%2020.7,21.7%205.5,0%2010.6,-2%2014.2,-4.6%200.6,-0.4%200.9,-1.1%200.9,-1.8%20v%20-9.7%20c%200,-1.2%20-1,-2.2%20-2.2,-2.2%20h%20-11.5%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20V%20322%20c%200,-1.2%201,-2.2%202.2,-2.2%20h%2017.2%20c%201.2,0%202.2,1%202.2,2.2%20v%2017.6%20c%200,0.6%20-0.3,1.3%20-0.8,1.7%20-4.8,4%20-11.8,7.3%20-20.2,7.3%20-16.3,0%20-26.5,-12%20-26.5,-26.9%27%20id=%27path3%27%20/%3e%3cpath%20d=%27m%20305.9,295.4%20h%2033.4%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-27.5%20c%20-1.2,0%20-2.2,1%20-2.2,2.2%20v%2013.4%20c%200,1.2%201,2.2%202.2,2.2%20h%2024.1%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-24.1%20c%20-1.2,0%20-2.2,1%20-2.2,2.2%20v%2013.9%20c%200,1.2%201,2.2%202.2,2.2%20h%2027.8%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-33.7%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-47.8%20c%200,-1.3%201,-2.3%202.2,-2.3%27%20id=%27path4%27%20/%3e%3cpath%20d=%27m%20372.3,295.4%20h%202.2%20c%200.7,0%201.3,0.3%201.7,0.8%20l%2028.3,36%20c%201.3,1.6%203.9,0.7%203.9,-1.4%20v%20-33.3%20c%200,-1.2%201,-2.2%202.2,-2.2%20h%201.3%20c%201.2,0%202.2,1%202.2,2.2%20v%2047.8%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-1.4%20c%20-0.7,0%20-1.3,-0.3%20-1.7,-0.8%20l%20-29.1,-37%20c%20-1.3,-1.6%20-3.9,-0.7%20-3.9,1.4%20v%2034.3%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-1.3%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-47.8%20c%200,-1.2%201,-2.2%202.2,-2.2%27%20id=%27path5%27%20/%3e%3cpath%20d=%27M%20457.1,300.9%20H%20444%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-1%20c%200,-1.2%201,-2.2%202.2,-2.2%20h%2036.6%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-13.1%20c%20-1.2,0%20-2.2,1%20-2.2,2.2%20v%2042.4%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-1.6%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-42.4%20c%200,-1.2%20-1,-2.2%20-2.2,-2.2%27%20id=%27path6%27%20/%3e%3c/g%3e%3cg%20id=%27g8%27%3e%3cpath%20d=%27m%20512.5,295.4%20h%2033.4%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-27.5%20c%20-1.2,0%20-2.2,1%20-2.2,2.2%20v%2013.4%20c%200,1.2%201,2.2%202.2,2.2%20h%2024.1%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-24.1%20c%20-1.2,0%20-2.2,1%20-2.2,2.2%20v%2013.9%20c%200,1.2%201,2.2%202.2,2.2%20h%2027.8%20c%201.2,0%202.2,1%202.2,2.2%20v%201%20c%200,1.2%20-1,2.2%20-2.2,2.2%20h%20-33.7%20c%20-1.2,0%20-2.2,-1%20-2.2,-2.2%20v%20-47.8%20c%200,-1.3%201,-2.3%202.2,-2.3%27%20id=%27path7%27%20/%3e%3cpath%20d=%27m%20574.4,321.7%20v%20-0.2%20c%200,-14.8%2011,-27%2026.4,-27%208.4,0%2013.9,2.7%2018.6,6.7%201,0.8%201.1,2.3%200.2,3.2%20l%20-1,1.1%20c%20-0.8,0.9%20-2.1,1%20-3,0.2%20-4,-3.4%20-8.6,-5.8%20-14.9,-5.8%20-11.6,0%20-20.2,9.4%20-20.2,21.4%20v%200.1%20c%200,12.1%208.7,21.6%2020.2,21.6%206.5,0%2010.9,-2.2%2015.4,-6.2%200.9,-0.8%202.2,-0.7%203,0.1%20l%200.7,0.7%20c%200.9,0.9%200.9,2.4%20-0.1,3.2%20-5,4.6%20-10.7,7.5%20-19.2,7.5%20-14.9,0.3%20-26.1,-11.6%20-26.1,-26.6%27%20id=%27path8%27%20/%3e%3c/g%3e%3cg%20id=%27g9%27%3e%3crect%20x=%2753.299999%27%20y=%27284.29999%27%20width=%2741.799999%27%20height=%2741.799999%27%20id=%27rect8%27%20/%3e%3cpolygon%20points=%2720.6,284.3%2020.6,358.8%2077.6,358.8%2077.6,342.2%2037.2,342.2%2037.2,284.3%20%27%20id=%27polygon8%27%20/%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Introducing LIGENTEC! Explore their photonic foundry service on our website.
LioniX International has joined our supplier lineup. Check out their customized microsystem solutions.
New manufacturer announcement: Get to know Polariton Technologies and their latest custom PIC offerings.
Welcome aboard ficonTEC! Find their catalog products and solutions now featured on MEETOPTICS.
We have a new categorization for Photonic Integrated Circuits. Find all the products from trusted suppliers.
Introducing Yalosys Ltd! Explore their laser microprocessing solutions on our website.
Epiphany has joined our supplier lineup. Check out their photonic design solutions.
New manufacturer announcement: Get to know Light Trace Photonics and their latest product offerings.
- Your cart is empty. Please add some items.
Longpass Filter - 645FDL50
Longpass Filter
'%20transform='matrix(1.33333%200%200%20-1.33333%200%20471.1)'%3e%3cpath%20d='M547.25%20172.7a33%2033%200%2000-32.96-32.96h-150.3A33%2033%200%2000331%20172.7v99.43a33%2033%200%200032.97%2032.97h150.3a33%2033%200%200032.97-32.97zM514.3%20350.1h-150.3c-43%200-77.98-34.97-77.98-77.97V172.7c0-43%2034.97-77.97%2077.97-77.97h150.3c43%200%2077.98%2034.97%2077.98%2077.97v99.43c0%2043-34.97%2077.97-77.97%2077.97M47.85%20225.24V350.1H2.83V95.05H47.84v125.52'%20fill='%23342f59'/%3e%3cpath%20d='M291.86%20350.1h-75.58L47.85%20225.25v-4.67L217.16%2095.05h75.57L120.27%20222.91zM12.27%2045.2V27.38L29.55%2045.2h11.28L22.81%2026.8%2042.98%204.3H30.86L12.27%2025.83V4.3H3.1v40.9zM49.04%2045.2h12.91l23.18-31.38h.11v31.39h8.27V4.3H81.16L57.42%2036.24h-.1V4.3h-8.28zM104.45%2045.2h9.18V4.3h-9.18zM159.8%2032.01c-.3%205.71-6.18%207.93-10.71%207.93-8.61%200-16.6-4.37-16.6-15.01%200-7.6%204.07-15.02%2016.65-15.02%203.57%200%206.7.45%2011.22%201.88v7.81h-13.09v6.35h22.04V6.85c-5.83-2.5-14.78-3.63-20.73-3.63-15.24%200-25.6%206.8-25.6%2021.65%200%2012.24%208.66%2021.4%2024.75%2021.4%2012.35%200%2021.58-4.69%2021.58-14.26zM178.94%2045.2h9.18V28.57h22.26V45.2h9.18V4.3h-9.18v17.55h-22.26V4.3h-9.18zM265.56%2045.2v-6.68H250V4.3h-9.18v34.22h-15.58v6.69zM314.62%209.91c8.9%200%2014.33%205.22%2014.33%2014.85%200%209.62-5.43%2014.83-14.33%2014.83-8.84%200-14.33-5.2-14.33-14.83%200-9.63%205.5-14.85%2014.33-14.85m0%2036.36c15.07%200%2023.86-7.18%2023.86-21.51%200-14.34-8.8-21.54-23.86-21.54-15.07%200-23.85%207.2-23.85%2021.54%200%2014.33%208.78%2021.51%2023.85%2021.51M356.66%2026.29h10.7c4.88%200%208.73%201.41%208.73%205.83%200%205.55-5.1%206.4-10.36%206.4h-9.07zm-9.18%2018.92h19.88c12.92%200%2018.25-4.48%2018.25-13.15%200-4.76-2.38-12.46-16.78-12.46h-12.17V4.3h-9.18zM429.23%2045.2v-6.68h-15.58V4.3h-9.18v34.22H388.9v6.69zM435.9%2045.2h9.19V4.3h-9.18zM488.31%2032.23c-.22%205.1-5.83%207.37-10.82%207.37-5.72%200-13.54-3.46-13.54-14.84%200-11.4%207.82-14.84%2013.54-14.84%207.54%200%2010.82%204.02%2011.33%207.47h9.52c-.73-10.88-10.99-14.17-21.53-14.17-13.6%200-22.37%207.2-22.37%2021.54%200%2013.77%208.78%2021.52%2022.94%2021.52%208.67%200%2020-3.05%2020.45-14.05zM536.41%2020.16l-8.5%2017.8-8.5-17.8zm-13.6%2025.05h11.56l20.91-40.9H544.4l-4.7%209.17h-23.57l-4.3-9.18h-9.86zM560.77%2045.2h9.18V11h22.5V4.3h-31.68z'%20fill='%23342f59'/%3e%3c/g%3e%3c/svg%3e)
Product Line
Knight Optical's cost-effective longpass dichroic filters offer superior transmission, reflection, and absorption. Designed to transmit wavelengths higher than the cut-on point, they feature thin-film dielectric coatings on glass with sharp transitions. Suitable for high powers, they come in standard sizes or can be customized for specific applications.
Product Specifications
- Product Code
- Cut-On Wavelength
- 645 nm
- Dimensions
- 50 x 50 x 1.1 mm
- Thickness
- 1.1 mm
- Diameter Tolerance
- +0/-0.2 mm
- Length
- 50 mm
- Length Tolerance
- ±0.25 mm
- Shape
- Square
- Substrate
- Borosilicate
- Surface Quality
- 60-40 scratch-dig
- Thickness Tolerance
- ±0.2 mm
- Width
- 50 mm
- Width Tolerance
- ±0.25 mm
- Supplier Location
- United Kingdom; Rhode Island, USA
Technical Documents
