Every.single.day. I report the junk to Apple and delete the text but nothing happens and they don’t stop. You would think there would be a way to stop it.

I’ve had these ridiculous text,emails, etc…. Most recent, was a phone call to verify my husband’s information having to do with a personal matter.. of course I didn’t give any information But questions made this scammer hang up on me.. I just wanted to know why he didn’t call my husband, how he got my phone number, and to verify information he had about my husband. Turned the table 😊

For minimal aberrations, it is best to use a plano-concave lens for the negative lens and a plano-convex lens for the positive lens with the plano surfaces facing each other. To further reduce aberrations, only the central portion of the lens should be illuminated, so choosing oversized lenses is often a good idea. This style of beam expander is called Galilean. Two positive lenses can also be used in a Keplerian beam expander design, but this configuration is longer than the Galilean design.

They email me and say that I need to contact them because they need an address because my package was delievered to a wrong address

Collimatedlaser meaning

They want you to click on the link without thinking about it and enter your personal or financial information. But the site is fake. A look-alike of a real website. And it’ll capture all the information you enter. The link could also install harmful malware on your phone or computer that steals your information. Things like your usernames and passwords to your online banking, email, or social media accounts that scammers could use to steal your identity and open new accounts in your name.

It’s the district stand dirty cops doing it not scammers why are you allowing them to do it and not prosecuting them for embezzlement and fraud

So true. and I am paying for scammers and others to be identified and stopped. Why even have this purching software on my phone!!

Jul 16, 2018 — What the USB port on back of WYZE camera FOR? ... What the USB port on back of WYZE camera FOR? ... You can add 1 or 2 more cameras using one power ...

Choose products to compare anywhere you see 'Add to Compare' or 'Compare' options displayed. Compare All Close

Collimateddefinition

I just recieved a package in the mail from Avienda de Parque De Africa with a cheap pendant that I did not order. They have my name address and phone number on the package, I researched and saw that this is happening to alot of people and it said to come here.

I just got caught up in that scan but thankfully I mentioned it to my friend and they said it was a scan so called my debit card # on the card and put a freeze on my debit card and went to the post office on Monday the next day and they said it was indeed a scam and then I went to my bank and they checked my account and there was nothing taken out (0.30) and they are sending me a new debit card. But after reading this I'm afraid they still have my name and address. I don't know what they can do with just my name and address but I'm so angry that I fell for that. I usually, always delete those texts but I am expecting a package from out of country so I fell for it. The post office cite they send you too looks real. They even have all the different tabs that you can go to for different information. Ugh!!!!!!

As an example, consider a Newport R-31005 HeNe Laser with beam diameter 0.63 mm and a divergence of 1.3 mrad. Note that these are beam diameter and full divergence, so in the notation of our figure, y1 = 0.315 mm and θ1 = 0.65 mrad. To expand this beam ten times while reducing the divergence by a factor of ten, we could select a plano-concave lens KPC043 with f1 = -25 mm and a plano-convex lens KPX109 with f2 = 250 mm. Since real lenses differ in some degree from thin lenses, the spacing between the pair of lenses is actually the sum of the back focal lengths BFL1 + BFL2 = -26.64 mm + 247.61 mm = 220.97 mm. The expanded beam diameter

As a first example, we look at a common application, the focusing of a laser beam to a small spot. The situation is shown in Figure 1. Here we have a laser beam, with radius y1 and divergence θ1 that is focused by a lens of focal length f. From the figure, we have θ2 = y1/f. The optical invariant then tells us that we must have y2 = θ1f, because the product of radius and divergence angle must be constant.

where f/2R = f/D is the f-number, f/#, of the lens. In order to make the image size smaller, we could make f/# smaller, but we are limited to f/# = 1 or so. That leaves us with the choice of decreasing R (smaller lens or aperture stop in front of the lens) or increasing s1. However, if we do either of those, it will restrict the light gathered by the lens. If we either decrease R by a factor of two or increase s1 by a factor of two, it would decrease the total light focused at s2 by a factor of four due to the restriction of the solid angle subtended by the lens.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

I have Gmail for my email provider, which auto sends about 99% of the scammers to my spam folder. Then I peek at the first 80 characters of their message, without opening the email (this avoids their pixel trackers from spying on me) to keep up with what's hot in spam country.

I agree Chris about hiring cyber experts although we also need to collect taxes from the super rich who often avoid paying their full share. I am sick of these phishing emails. My email provider has a site that I send all these emails and any others that are suspicious . The FTC needs such a site so everyone can have access to it, and hire cyber experts to check these things out instead of just compiling a data base.

I been finished all of my holiday shopping in November and already have the cute gifts that the children wanted me to have

If a microscope has only one ocular lens it is called a monocular and if it has two ocular lenses it is called a binocular. Eyepiece Tube. Connects the ...

Another common application is the collimation of light from a very small source, as shown in Figure 2. The problem is often stated in terms of collimating the output from a “point source.” Unfortunately, nothing is ever a true point source and the size of the source must be included in any calculation. In figure 6, the point source has a radius of y1 and has a maximum ray of angle θ1. If we collimate the output from this source using a lens with focal length f, then the result will be a beam with a radius y2 = θ1f and divergence angle θ2 = y1/f. Note that, no matter what lens is used, the beam radius and beam divergence have a reciprocal relation. For example, to improve the collimation by a factor of two, you need to increase the beam diameter by a factor of two.

Collimatedbeam of light

Collimatedtelescope

What to do about unwanted calls, emails, and text messages that can be annoying, might be illegal, and are probably scams.

This is good article to read help me to be aware what is fake messages or legit email. I received many times text and emails about packages. Thanks FTC to educate the public scammers online are everywhere. Learned a lot reading this article.

As a numerical example, let’s look at the case of the output from a Newport R-31005 HeNe laser focused to a spot using a KPX043 Plano-Convex Lens. This Hene laser has a beam diameter of 0.63 mm and a divergence of 1.3 mrad. Note that these are beam diameter and full divergence, so in the notation of our figure, y1 = 0.315 mm and θ1 = 0.65 mrad. The KPX043 lens has a focal length of 25.4 mm. Thus, at the focused spot, we have a radius θ1f = 16.5 µm. So, the diameter of the spot will be 33 µm.

ON MY HONOR I SWARE THAT I WILL NEVER ORDER ANYTHING ONLINE OR OTHERWISE. I’VE LEARNED MY LESSON! DON’T TRUST ORDERING SOMETHING BY MAIL OR OTHERWISE EVER! WHAT A MESS!

Thank you the FTC for bringing this to our attention.. it is overwhelming and scary. Congress needs to allocate more money to the FTC. To safeguard the American people.

I received what look like a legitimate email from the United States Post Office. I was expecting a package filled out some info but the following page wanted my credit card information and to charge me .30 cents. These scammers are truly tech savvy and its getting scary. Thank you for the articles that you send out, as they are very helpful.

The legitimate messages from carriers are not always truthful. I recently bought a very expensive computer through Amazon which the seller sent FedEx. When the computer did not arrive on time I received daily messages excusing the delay which were absolutely untrue. ("The customer wasn't available" "The business was closed" "Weather delay", etc.) When I pointed this out to Amazon and the seller and they began to investigate, FedEx reported that they had proof that they delivered the item a day PRIOR to their last notice of delay. After I suggested that the incident be reported as a crime, the computer showed up the next morning with no explanation or apology.

Avoid purchasing from Bed, Bath and Beyond. I purchased an item Dec 1st, was promised delivery by Dec 7th. Received a email changing delivery to Dec 9th. Long story short my delivery was never received. Some "anonymous" person (probably from Bed, bath and Beyond) rerouted the delivery on Dec 18th. I contacted the company for a resolution and am still waiting for a refund!

Thank you for the reminder. Coincidentally, just before your email, I received an email that caused me to pause and ponder it. It stated, "Thank you for your purchase..." and was a group send. It wanted me to click on a pdf and I deleted instead not recognizing the "purchase", though I made too many to remember. It felt wrong. Thanks so much for confirmation of these scams.

PrepMate. The body tube of a microscope is a structural component that plays a crucial role in the overall function of the microscope. It is the long, ...

A Fresnel lens is a type of composite compact lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a ...

I get frustrated and angry with so many scam emails and messages. Those from PayPal are the worst. I have never had an account and them demanding I pay them hundreds of dollars is ridiculous. I never open the link, return a phone call from the sender who gives a name and number and block them immediately. It’s ridiculous how far scammers will go these days.

You should trace these live fraudsters and throw them in prison for a long time to deter others from trying to make TAXFREE! money.

Adding...my order seemed very legit to a place in California. Problem is it then went to a London site but by the time I found that the order suddenly went to China. Then cannot find order in our system, please reenter tracking. Then order found Then order shipped bounced around China Then USA then shipped to a usps site then my town po, then out for delivery, then delivered. Nothin All this was done with usual delivery times of my local po.

These solid aluminum, nonmagnetic baseplates provide a convenient and cost-effective platform for assembling prototype optical assemblies, ...

Dear consumer advice I had a weird email from a scammer 724572107 that was created for Branch CO2 from 2200 Parkway Gray's lake Illinois that was set up by a scammer for FedEx that I never even ordered and now they are going to try to deliver but i don't want it because I never ordered it. So can have the scammer removed please.

I am on a mission to stop these annoying emails. My email provider has a site where I send all such emails which I cannot verify as legitimate. The FTC needs such a site and also an army of young cyber experts to track these people down and hold them accountable for the damage they cause.

Collimation definition in radiography

I GET THESE MESSAGES EVERY DAY FROM (UPS). YESTERDAY I RECEIVED 10 OF THESE IN A ROW. I NEVER ANSWER THEM, JUST DELETE THEM.

Open the image, apply a lens correction filter, and modify the settings to reduce distortion effects. Gradually tweak the settings while observing the changes ...

Yes, opt-in.  By checking this box, you agree to receive our newsletters, announcements, surveys and marketing offers in accordance with our privacy policy

First and foremost, ask yourself: have I really ordered anything recently? And if I did, and they "lost my address", how come they have my phone number?

This morning I received a text from USPS to verify my shipping address. I am waiting on various last minute shipments before Christmas. I will admit, I did click. The site looked very real. I provided my address and then it asked for payment. Immediately, I got out of it! I went to all of my emails notifications for my deliveries and none of them are using USPS. I guess I will learn if I was scammed with using just my address.

Since a common application is the collimation of the output from an Optical Fiber, let’s use that for our numerical example. The Newport F-MBB fiber has a core diameter of 200 µm and a numerical aperture (NA) of 0.37. The radius y1 of our source is then 100 µm. NA is defined as sine of the half-angle accepted by the fiber, which is approximate to the half-angle, so θ1 ≈ 0.37 rad. If we again use the KPX043 , 25.4 mm focal length lens to collimate the output, we will have a beam with a radius of 9.4 mm and a half-angle divergence of 4 mrad. We are locked into a particular relation between the size and divergence of the beam. If we want a smaller beam, we must settle for a larger divergence. If we want the beam to remain collimated over a large distance, then we must accept a larger beam diameter in order to achieve this.

When you order something online, you might get several emails or text messages about your order: Confirming your order. Telling you it shipped. Saying it's out for delivery. Notifying you about delivery. Did you know that scammers send fake package shipment and delivery notifications to try to steal people's personal information — not just at the holidays, but all year long? Here's what you need to know to protect yourself from these scams.

Collimatedlens

I get these all the time. I know when, where and if I'm expecting a shipment. The ones that are alarming is when you get an invoice telling you something has been renewed and they take your money. Fortunately, I don't have the accounts that say that. I also check the email domain if it ends with Gmail I just delete and report spam

You may also get Email asking to re-new your computer Virus software from Norton and others I keep getting them but do not respond because I have never used them but they state your account has expired do not respond to them I get many Emails from sights saying I WON another asking questions to receive free gift another saying I Inherited a large sum of money from a place I never heard of and one saying my relative needs help getting home do not respond to them unless you actually know for sure they are legitimate I still to this day get them but I know they are Spam as well as Scams and do turn this in to Federal Trade Commission, Attorney General and AARP in hopes to prevent others from being robbed of there money and personal information. These Notifications help more than ever to stay awhere of. the bad things going on

is reduced from the original divergence by a factor that is equal to the ratio of the focal lengths |-f1|/f2. So, to expand a laser beam by a factor of five we would select two lenses whose focal lengths differ by a factor of five, and the divergence angle of the expanded beam would be 1/5th the original divergence angle.

So why do you let them do it, you never arrest them but I bet if I did it the Feds would be on my door step first thing in the morning garenteed. The only people putting a stop to it are youtubers which you won't even give funding to. There's something fishy going on between the governments and these scammers, it's like they have some kind of deal going on that let's them do do it. Just saying.

Another way to tell real emails from the frauds, is almost all real companies use my real name, but the scammers are clueless, so just use none or address me by my email.

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

I made.a LG order and have been waiting for too long. I ordered from a store on facebook. Don't they have some kind of responsibility to protect your member from fraudests go

I agree on both counts. In order to provide necessary consumer protection like cyber experts and other services, a government needs additional income which is only possible if we all pay our fair share in taxes.

Very good info and at the right time. I get messages like that all the time , but I know I am not expecting any packages , so I don’t click as asked . Thanks.

Don't answer surveys regarding, "How did we do?" or "How do you like your new [whatever]" for a week, or a month; that may be phishing/not sent by the shipper/business.

Nov.29, 2023. Add for 8 Henley style shirts on special. I ordered. Within 3 min got a received and thank no you. Next day search and it took me to London site with scam all over the page. Contacted my bank, useless. Then every 2 days since get email package is here, package moving the arrival at usps in my hometown. Today email tracking says out for delivery then delivered to me. Nope did not get. I see this article couldn't believe step by step just what they are doing. I give up.

Crafted from durable aluminium, this adapter ring ensures a sturdy and reliable connection between your C-mount lens and CS-mount camera. The 5mm extension tube ...

This application is one that will be approached as an imaging problem as opposed to the focusing and collimation problems of the previous applications. An example might be a situation where a fluorescing sample must be imaged with a CCD camera. The geometry of the application is shown in Figure 4.  An extended source with a radius of y1 is located at a distance s1 from a lens of focal length f. The figure shows a ray incident upon the lens at a radius of R. We can take this radius R to be the maximal allowed ray, or clear aperture, of the lens.

Collimatedlaser

Dec 31, 2017 — As an addendum; a linear polarizer selects a (linear) polarization state by blocking all others. Circularly polarized light, on average, ...

Collimatedbinoculars

It is often desirable to expand a laser beam. At least two lenses are necessary to accomplish this. In Figure 3, a laser beam of radius y1 and divergence θ1 is expanded by a negative lens with focal length −f1. From Applications 1 and 2 we know θ2 = y1/|−f1|, and the optical invariant tells us that the radius of the virtual image formed by this lens is y2 = θ1|−f1|. This image is at the focal point of the lens, s2 = −f1, because a well-collimated laser yields s1 ~ ∞, so from the Gaussian lens equation s2 = f. Adding a second lens with a positive focal length f2 and separating the two lenses by the sum of the two focal lengths −f1 +f2, results in a beam with a radius y3 = θ2f2 and divergence angle θ3 = y2/f2.

Product Summary. This demonstrations optics set uses a Laser Ray Box that has bright, well-defined rays because it uses lasers rather than an incandescent light ...

Transform the diameter of high-power CO₂ laser beams with these Galilean telescopes (no internal focus) beam expanders, suitable for a wide range of ...

This is a fundamental limitation on the minimum size of the focused spot in this application. We have already assumed a perfect, aberration-free lens. No improvement of the lens can yield any improvement in the spot size. The only way to make the spot size smaller is to use a lens of shorter focal length or expand the beam. If this is not possible because of a limitation in the geometry of the optical system, then this spot size is the smallest that could be achieved. In addition, diffraction may limit the spot to an even larger size (see Gaussian Beam Optics), but we are ignoring wave optics and only considering ray optics here.

The scammers send bogus messages by email or text. The message might say that you missed a delivery attempt and ask you to click on a link to re-schedule the delivery. Or it could say that your item is ready to ship but you need to update your shipping preferences. Some create a sense of urgency by saying if you don’t respond right away, they'll return your package to the sender.

I never taught of that.. Thanks for that suggestion. Too bad that people who are smart enough to develop these scams use their intelligence for good things.

Yes, me too exactly the same. Looks like the USPS website and has links that take you to real link on the postal service website. But why ask for my credit card for an incorrect address entry? I’m sure there have been a lot of victims of this scam.

You know, the VERY FIRST thing that should be available is a link to send in our scam emails and texts. Instead of hiring 800 thousand IRS agents to squeeze the citizens, why don't we hire 800 thousand cyber experts to eliminate the evil citizens "have to be prepared for"!!

I keep reading about how the new AI chatbots gives scammers new abilities to fix their broken English, but I'm not seeing any improvements there. I wonder if this is because there are so many people still falling for their scams.

If s1 is large, then s2 will be close to f, from our Gaussian lens equation, so for the purposes of approximation we can take θ2 ~ R/f. Then from the optical invariant, we have

I clicked on a texted link to a package delayed because of wrong address. It looked like it was from the USPS. I did type in the correct address and was asked to give my credit card number to pay .30 cents for a redelivery. I backed out at that point, didn't give my credit card info and when I tried to get back to the text it was gone.

I always go back to where I ordered the item(s).Walmart or Amazon....sign up for USPS informed delivery...you can log in and see the status of packages coming in the mail....legitimate orders don't need an update of address or delivery.....I have never had to contact a "warehouse" to update delivery information