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The first is the LED optical design have some knowledge <br> first said it CREE, CREE commonly used LED: XPE, XPE-hew, XPG, XPG-2, XTE, XBD, XML, XML-EZW, XML-HVW, MTG, CXA series and ML series, as well as the previous MX6, MX3, MX3 should have been discontinued, CREE LED is still very good overall, except XPE-HEW, XTE, XBD-ww, MX3 and MX6 Several models are easy to get out of the yellow circle (the MX3 and MX6 centers are prone to blue spots, the following will not talk about MX3, the latter will tell you how to remove the yellow spot of the TIR lens, do not need to bother to simulate the phosphor), other light sources are It is better to design. The positioning of MX6, XPG-2 and CXA series in these light sources should be noted (I use TP). The origin of the MX6 and ML series light source files is at the bottom of the LED base, XPG- The origin position of the light source file of 2 is 0.2mm below the LED light emitting surface, and the origin of the CXA series is on the surface of the light source board, so the origin position needs attention when importing the light source file.
The more CREE used now should be XPG, XPG-2, XTE, XBD. The CXA series is still very small. Let's talk about XTE, XBD and XPG-2. This is the CREE launched last year. (I remember it was last year.) I used XTE to do too many street lights. The edge is yellow, this I also think of any way to solve!! XBD designed a single lens, MR16, etc., XBD-CW plus a slight matte can be without the macula, but ww this scrub will be a little more, with the honeycomb to improve It is also possible, and the XBD's cool white and warm white are measured in the same lens. The angle is different. It is necessary to determine the color temperature range when designing. (In fact, pay attention to the structure when designing TIR, it can be completely smoothed with a slight scrub. Remove the macula. The XPG-2 light source is the same as the XPG. The TIR lens can be used without a matte. The spot has no yellow spots. When the luminous flux is 1.5A, the luminous flux can be above 400lm (R3, R4, R5), XTE. Both the XPG-2 and the XPG-2 are very close in luminous flux, and their luminous flux test data is measured at a junction temperature of 85 ° C. Now all the 4040 size LEDs are on the LUXEON-T (3737 size). ) can compete with them. These are my personal views on CREE LED.
Let's talk about lumileds. There are too many LED models for lumens. I mainly used rebel, rebel-es, Luxeon-Z, luxeon-A, luxeon-M and other LUXEON-H, luxeon-T and so on. I haven't used it. I believe that many optical designers are like me. The most used models of lumen LEDs are rebel and rebel-es. The position of the origin of the lumens of the LED light source is not moving (I use TP). And rebel-es is mainly competing with XPG. The luminous flux of the two is basically the same, and there is no yellow circle for the lens. However, the lumen specification of the lumen is generally not 1.5A, and CREE is available. Rebel and rebel-es are well-designed light sources, just like CREE's XPE and XPG (all of which are my personal views on lumileds, there may be incorrect places or missing places, welcome to point out)
The most famous LEDs of osram are oslon80 and 150, generally CP7P, CR7P, CQ7P and CPDP, CRDP, CQDP, among which CP7P, CPDP are the most used. In the absence of CR7P, CQ7P light source files, CP7P can be used. The design of the light source file is basically the same, as is the OSLON150. The light source files of the three light sources of osram's CP7P, CPDP, and CQAR are all required to be moved (TP). People who use TP design know that the 7p and DP simulations show that the spot is asymmetrical (I am talking about the mirror), osram's 80° and 150° are not very good design light distribution, the light distribution curve is always not Symmetry, this is actually not too careless, this is the problem of the light source file, you can add a honeycomb on the surface of the simulation, of course, you can also set the matte inside the TP, and then attach a matte property to the lens surface. I used CP7P and CPDP to design street lamps, par lights, MR16, lenses that are also used for backlighting, etc. There is no yellow circle, and there is no yellow circle on the glossy surface.
Osram launched CQAR last year, the luminous flux is not comparable to XPG-2 and luxoen-T, and if the street lamp is used, the yellow circle is very heavy, and the lens surface of TIE needs to be sanded to improve. The origin of the light source file also needs to be moved (above) All of my personal views on osram, there may be incorrect places or missing places, welcome to point out)
Here is the light source of Nichia: Nichia has 183-6L, 183-3L, 219, 119, 757, 153, these are used more, of course, there are COB package, cob package later said, 183 these two CREE's MX6, MX3 thinks very much, of course, the angle of the same lens is different, but the edge of the spot is yellow, the center of the small angle is blue, and the position of the light source files of the two sources is The same, all at the bottom of the LED base, so when you use to move the light source file, but now basically do not use the 183 these two light sources. The two light sources 219 and 119 are the same, but there is a difference in the package (this is what Nichia people say), but one of the 219 is different from the other 219, I forgot which one. I will say 119 directly. The 119 light source I encountered in a few years of design is not a lot, but the effect is good every time, there is no problem with adding a little scrub. Now the fire is 757, used on the TIR lens, used on the bulb, mainly cost-effective, but the yellow circle is heavy, tir's lamp cup, plus the matte spot is difficult to do evenly, but I used to help The customer has done one, the DUV is below 0.006, the cd value and efficiency also meet the customer's requirements, mainly the lens structure to pay attention to, to know which part of the lens is caused by the yellow circle of the LED, do not simulate the phosphor I used to use the analog phosphor method to process the yellow circle, but it is not right. It may be that my method of simulating phosphor is wrong!
The most common light source I have encountered in the design of these years is the above, of course, CITIZEN cob package LED, sharp, Samsung, and domestic.
I will talk about how to remove the yellow circle below. In fact, it is very simple. Just flatten the flat convexity in the lens crater, and add sanding or bead on the surface. You can try it later in design, but this way What is not good is that the cd value of the lens will be lower than that of the crater. It may not meet the customer's requirements. At this time, it is necessary to make the lens angle as the lower limit of the customer's allowable angle range. That is, the tolerance of the lens is also getting bigger.
Now let's talk about all the LEDs of the cob package. After that, I said that the streetlights are now more and more used for cob packaging. I want to use CLL010-020-030-040-0505, 234, etc. Sharp GW5D these, too much, can't remember! Especially the sharp and NICHIA cobLED, the downloaded light source file is RS8, TP can't use, then what to do at this time, I don't know how others do it, However, I have encountered a lot of saying that I built a light source file. How many LEDs are there, how many LEDs are built, plus a phosphor, set different wavelengths, or some people directly build the entire light surface? Langbo body, in or with the version of TP7.0 or above, build a light source according to the light distribution, and then attached to a plane of a certain size, I want to tell you that this will certainly not work, as long as the size of the LED exceeds 5050, The error of the lens built by oneself will be very large. In fact, it is very simple. For example, if you have a MX6 light source file and no Japanese 183-6L light source file, then you can use MX6 instead of Nichia. 183-3L to do, then lens table What I want to tell you is that the larger the light surface of the cob, the more accurate the angle of replacement will be, even if the LED surface of the LED light is 10mm, and the light source file of your existing light source is 9mm, this is Can be replaced directly, the only requirement is that the surface of the lens must be frosted, because the cost of fine-tuning the bead is too expensive.
The more CREE used now should be XPG, XPG-2, XTE, XBD. The CXA series is still very small. Let's talk about XTE, XBD and XPG-2. This is the CREE launched last year. (I remember it was last year.) I used XTE to do too many street lights. The edge is yellow, this I also think of any way to solve!! XBD designed a single lens, MR16, etc., XBD-CW plus a slight matte can be without the macula, but ww this scrub will be a little more, with the honeycomb to improve It is also possible, and the XBD's cool white and warm white are measured in the same lens. The angle is different. It is necessary to determine the color temperature range when designing. (In fact, pay attention to the structure when designing TIR, it can be completely smoothed with a slight scrub. Remove the macula. The XPG-2 light source is the same as the XPG. The TIR lens can be used without a matte. The spot has no yellow spots. When the luminous flux is 1.5A, the luminous flux can be above 400lm (R3, R4, R5), XTE. Both the XPG-2 and the XPG-2 are very close in luminous flux, and their luminous flux test data is measured at a junction temperature of 85 ° C. Now all the 4040 size LEDs are on the LUXEON-T (3737 size). ) can compete with them. These are my personal views on CREE LED.
Let's talk about lumileds. There are too many LED models for lumens. I mainly used rebel, rebel-es, Luxeon-Z, luxeon-A, luxeon-M and other LUXEON-H, luxeon-T and so on. I haven't used it. I believe that many optical designers are like me. The most used models of lumen LEDs are rebel and rebel-es. The position of the origin of the lumens of the LED light source is not moving (I use TP). And rebel-es is mainly competing with XPG. The luminous flux of the two is basically the same, and there is no yellow circle for the lens. However, the lumen specification of the lumen is generally not 1.5A, and CREE is available. Rebel and rebel-es are well-designed light sources, just like CREE's XPE and XPG (all of which are my personal views on lumileds, there may be incorrect places or missing places, welcome to point out)
The most famous LEDs of osram are oslon80 and 150, generally CP7P, CR7P, CQ7P and CPDP, CRDP, CQDP, among which CP7P, CPDP are the most used. In the absence of CR7P, CQ7P light source files, CP7P can be used. The design of the light source file is basically the same, as is the OSLON150. The light source files of the three light sources of osram's CP7P, CPDP, and CQAR are all required to be moved (TP). People who use TP design know that the 7p and DP simulations show that the spot is asymmetrical (I am talking about the mirror), osram's 80° and 150° are not very good design light distribution, the light distribution curve is always not Symmetry, this is actually not too careless, this is the problem of the light source file, you can add a honeycomb on the surface of the simulation, of course, you can also set the matte inside the TP, and then attach a matte property to the lens surface. I used CP7P and CPDP to design street lamps, par lights, MR16, lenses that are also used for backlighting, etc. There is no yellow circle, and there is no yellow circle on the glossy surface.
Osram launched CQAR last year, the luminous flux is not comparable to XPG-2 and luxoen-T, and if the street lamp is used, the yellow circle is very heavy, and the lens surface of TIE needs to be sanded to improve. The origin of the light source file also needs to be moved (above) All of my personal views on osram, there may be incorrect places or missing places, welcome to point out)
Here is the light source of Nichia: Nichia has 183-6L, 183-3L, 219, 119, 757, 153, these are used more, of course, there are COB package, cob package later said, 183 these two CREE's MX6, MX3 thinks very much, of course, the angle of the same lens is different, but the edge of the spot is yellow, the center of the small angle is blue, and the position of the light source files of the two sources is The same, all at the bottom of the LED base, so when you use to move the light source file, but now basically do not use the 183 these two light sources. The two light sources 219 and 119 are the same, but there is a difference in the package (this is what Nichia people say), but one of the 219 is different from the other 219, I forgot which one. I will say 119 directly. The 119 light source I encountered in a few years of design is not a lot, but the effect is good every time, there is no problem with adding a little scrub. Now the fire is 757, used on the TIR lens, used on the bulb, mainly cost-effective, but the yellow circle is heavy, tir's lamp cup, plus the matte spot is difficult to do evenly, but I used to help The customer has done one, the DUV is below 0.006, the cd value and efficiency also meet the customer's requirements, mainly the lens structure to pay attention to, to know which part of the lens is caused by the yellow circle of the LED, do not simulate the phosphor I used to use the analog phosphor method to process the yellow circle, but it is not right. It may be that my method of simulating phosphor is wrong!
The most common light source I have encountered in the design of these years is the above, of course, CITIZEN cob package LED, sharp, Samsung, and domestic.
I will talk about how to remove the yellow circle below. In fact, it is very simple. Just flatten the flat convexity in the lens crater, and add sanding or bead on the surface. You can try it later in design, but this way What is not good is that the cd value of the lens will be lower than that of the crater. It may not meet the customer's requirements. At this time, it is necessary to make the lens angle as the lower limit of the customer's allowable angle range. That is, the tolerance of the lens is also getting bigger.
Now let's talk about all the LEDs of the cob package. After that, I said that the streetlights are now more and more used for cob packaging. I want to use CLL010-020-030-040-0505, 234, etc. Sharp GW5D these, too much, can't remember! Especially the sharp and NICHIA cobLED, the downloaded light source file is RS8, TP can't use, then what to do at this time, I don't know how others do it, However, I have encountered a lot of saying that I built a light source file. How many LEDs are there, how many LEDs are built, plus a phosphor, set different wavelengths, or some people directly build the entire light surface? Langbo body, in or with the version of TP7.0 or above, build a light source according to the light distribution, and then attached to a plane of a certain size, I want to tell you that this will certainly not work, as long as the size of the LED exceeds 5050, The error of the lens built by oneself will be very large. In fact, it is very simple. For example, if you have a MX6 light source file and no Japanese 183-6L light source file, then you can use MX6 instead of Nichia. 183-3L to do, then lens table What I want to tell you is that the larger the light surface of the cob, the more accurate the angle of replacement will be, even if the LED surface of the LED light is 10mm, and the light source file of your existing light source is 9mm, this is Can be replaced directly, the only requirement is that the surface of the lens must be frosted, because the cost of fine-tuning the bead is too expensive.
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