How Do We Calculate With The Thin Lens Equation
An important thing to remember is that the object distance for both lens and mirrors is always a positive value. The image distance or i value in the thin lens equation may be negative or positive depending on the position of the image. If the image is on the same side as the object, in which we note as in front of the lens, then the image distance i value is negative . If the image is on the opposite side as the object, in which we note as behind the lens, then the image distance i value is positive.
For Lens:Images on the same side as the object are also known as virtual images. The i value is always negative.
Images on the opposite side of the object are also known as real images. The i value is always positive.
For mirrors: This is the opposite. Images on the same side as the object are real images.
Images on the opposite side of the object are virtual images.
Please note that we are referring to a general equation of 1/f = 1/i + 1/o that is used for both diverging and converging lens, in which our Summary Table below applies. Some people like to use two equations, depending on which lens they use. You may have used 1/f=1/o + 1/i for just convex or converging lens, and – = 1/o for just concave or diverging lens. In that case, for concave or diverging lens, you no longer have to pay attention the sign values, and simply plug in the numerical values for focal length, object distance, and image distance.
|Type of Lens
|Copyright 2018: Moosmosis.org
Did Harry Potter Ever Wear Contacts
I’ve read all the books and have seen all the movies , but I’ve been wondering: Is there ever a time when Harry wears contacts instead of glasses? My memory is pretty good, but it’s not that good 😉 I’m so used to seeing him in glasses that I’ve never really thought about alternatives.
- 3Welcome to SciFi.se, personally I like this question, but others are VTC based on its localization. Feel free to take a look at the faq for what type of questions to ask in the future. As I said I like this question, as it leads to some interesting thoughts such as why couldn’t Harry use magic to repair his vision, or why when his glasses seemingly got in the way on several occasions he wouldn’t change to contacts and/or get LASIK or something.Nov 7 ’12 at 2:11
- 3Note that the story plays in the past: between 1991 and 1998. Contacts weren’t as good at that time as they are now.
There is nothing in the books to suggest Harry wore contact lenses at any point during the series.
However, in both the movie and the book Harry Potter and the Deathly Hallows , during the King’s Cross scene he becomes conscious of not wearing or needing glasses while in that state of stasis.
He sat up. His body appeared unscathed. He touched his face. He was not wearing glasses any more.Deathly Hallows – page 565 – Bloomsbury – chapter 35, King’s Cross
Harry Potter and the Deathly Hallows – Part 2 – Warner Bros.
Jk Rowling’s Glasses And The Glasses Of Her Characters
From the iconic round, Harry Potter glasses to the half moon spectacles of Professor Dumbledore…
J.K. Rowlingone of the most influential women in Britain. J.K. Rowling’s glasses and the glasses of her characters
J.K. Rowling’s glasses style for reading glasses is classic and elegant – a very sophisticated look.
Her sunglasses, however, are more adventurous. They are a unique take on a popular look, and make her appear youthful, stylish and modern.
Perhaps more interesting, however, are the glasses worn by J.K. Rowling’s characters in Harry Potter. Throughout all seven of the books, the hero of the story, Harry Potter himself, wears glasses, and it is well know in the story that he suffers from very bad eyesight without them . This unusual image of a hero in glasses, for J.K. Rowling, stems from a very personal and interesting reason. In an interview, when a fan asked J.K. Rowling why Harry Potter wears glasses, she answered:
“Because I had glasses all though my childhood and I was sick and tired of the person in the books who wore the glasses was always the brainy one and it really irritated me and I wanted to read about a hero wearing glasses. It also has a symbolic function, Harry is the eyes onto the books in the sense that it is always Harry’s point of view, so there was also that, you know, facet of him wearing glasses”.
Recommended Reading: Is Harry Potter And The Cursed Child Movie
How Do I Know If A Lens Image Is Magnified Or Not Upside Down Or Upright
The magnification equation is m = i/o
If the m value is negative, the image is upside down. If the m value is positive, the image is upright side up.
Now, how do we know if the lens image is magnified, bigger or smaller, based on the thin lens equation? Good question. Plug in your i and o values, and take the absolute value.
m= | i/o |
If the absolute m value is greater than 1, then the image is larger than the size of the object.
If the absolute m value is equal to 1, the image size is the same size as the object.
If the absolute m value is less than 1, then the image is smaller than the size of the original object.
Why Does Harry Potter Wear Glasses
Is there some in-Universe explanation for why Harry wears glasses – either 100% of the time, or at least, when playing Quiddich?
Surely, given assorted spells, there should be one to repair either the issues with his near-sightedness, or, more likely, to act as lenses .
P.S. I seem to recall a spell to make someone see better from afar, but not sure of the details.
- May 24 ’11 at 2:36
- 1The spell you’re remembering is probably one that improved his glasses during the match with the heavy rain.May 24 ’11 at 5:11
- 5it’s a writing ploy that Rowling used to make give him a weakness, since he’s the boy wonder and all. :-DMay 24 ’11 at 18:16
Poor eyesight simply appears to be a non-reversible ailment among wizards.
We have ample evidence that this is so, by the 19 other mentioned wizard and witches who also wear them.
Amelia Bones , Borgin , Aberforth Dumbledore, Mafalda Hopkirk
Exactly, said Dumbledore, looking very seriously over the top of his half-moon glasses.
Instead he was smiling at a rather severe-looking woman who was wearing square glasses exactly the shape of the markings the cat had had around its eyes.
Myrtle Warren , Bob Ogden , Harry Potter
The tall, thin, black-haired man standing next to her put his arm around her. He wore glasses, and his hair was very untidy. It stuck up at the back, just like Harrys did.
Rufus Scrimgeour , Rita Skeeter , Tofty
Sybill Trelawney , Arthur Weasley
Also Check: Who Played Voldemort
Who Fixes Harrys Nose In The Book
Luna LovegoodBehind the scenes In the film adaptation of Harry Potter and the Half-Blood Prince, Luna Lovegood finds Harry on the Hogwarts Express instead of Nymphadora Tonks. Luna also uses the Episkey spell to mend Harrys broken nose when they reach the Entrance Gates to Hogwarts, instead of when Tonks does so in the book.
Creating The Harry Potter Look
Will says: I met with the director, costume designer and props master who all had a slightly different idea of what was required. The only thing that was set in stone was that the eye shape was to be round.
The first prototype we made up was a fairly chunky matt black 49mm round eye acetate .
We made up six different styles of plastic frames in varying thickness, colour and size before we decided to look at metal frames.
Again we looked at different sizes, bridges thickness of eye wire and finishes. We settled on a 38mm round silver plated frame with a W bridge but on the screen test; the silver didnt look quite right so we fitted black xylo rims. These were deemed a little too thick so we settle on black enamel rims. We used components supplied to us by Savile Row, who are well known for the John Lennon round style hand made glasses.
The gloss silver of the bridge and sides was a little too bright, we tried gunmetal, this was a little too dark so we made a polyurethane wash that we tinted with a little matt grey paint; and this gave a pleasing distressed, antique effect.
In all, we made up thirteen proto types before everyone was happy. During rehearsals we had a panic; the nickel silver from the rims was causing the actor to have an allergic reaction. We had to quickly make up duplicate pairs from rolled gold.;As the films went on, and Daniel grew, we had to increase the size of the glasses.
Recommended Reading: How To Save In Lego Harry Potter Nintendo Switch
Couldn’t Harry Potter Fix His Eyesight With Magic Perhaps But
Throughout all seven books and eight movies, Harry Potter, wears a pair of glasses with a metal frame and roundlenses; that made history. At the time of the first publication,however, a hero wearing glasses was by no means common and a very welcome changefor fans of the fantasy;genre.
At school, Harry had no one. Everybody knew that Dudley’s;ganghated that odd Harry Potter in his baggy old clothes and broken glasses, andnobody liked to disagree with Dudley’s;gang.Harry Potter and theSorcerers;Stone
According to author J.K. Rowling, the choice to give the maincharacter glasses was made to send a positive message to children with visualimpairments: if your favourite hero wears glasses, then the perceptionchanges and wearing them becomes something cool.
And just like this, glasses with round frames became fashionable.
Daniel Radcliffe Bans Glasses To Stop Potter Comparisons
Daniel Radcliffe has banned himself from ever wearing glasses.
The 25-year-old actor – who starred as the boy wizard in the ‘Harry Potter’ film series – has revealed he will insist on having contact lenses if his sight ever gets impaired because he doesn’t want to be compared to the character he played for 10 years.
He told MTV: ”It’s gonna be contacts or like triangular glasses or something just to really put some distance.”
Meanwhile, the ‘Horns’ star recently revealed that he is desperate for fans to stop comparing his recent work to his role in the fantasy series.
He explained: ”There is no one film that fully separates me, in the eyes of everyone else, from Harry Potter – that isn’t going to happen.
”It’s about building up as diverse and interesting a body of work as I can.”
He added: ”I’m looking forward to the day where I can release a film and it not be talked about in .”
Daniel also admitted that he wants to show his future children the ‘Harry Potter’ films but will wait until they are old enough.
When asked if he thinks the movies will ”stand the test of time”, he said: ”Well will they or won’t they remake them before my kids are grown up? Will my kids be saying, ‘My Dad was the original Harry Potter?’
”That’s all a possibility! I have thought at what age would I let my kids see those films because it is such a weird thing – I think I’m going to try and not for a long time.”
Daily Celebrity Watch
Also Check: Bravo Harry Potter Marathon
Harry Potter : Sunglasses
Sunglasses have become a must-have in mens wardrobe. While they help protect your eyes, sunglasses also add a finishing touch to your look. Whether youre looking for aviators, wayfarers, round sunglasses or wrap-around sunglasses, at Target, we have a wide range of shades that youll want to add to your collection. Choosing sunglasses might seem like a daunting task, here are a few points to help choose the right one for you. Firstly, know your facial type, it will make finding a pair of shades so much easier. Then you can either go for full-frame, half-frame or frameless sunglasses to suit your taste and style. You also have an option to select from the materials used to make the frame depending on your purpose as they play a huge role in your safety and comfort. Now that you have your frame sorted lets move to the lens. You can choose from a polarized, photochromic, gradient or mirrored lens. Next is the material and the color of the lens depending on your style and taste. Browse through our store for eyewear from top brands like Ray-Ban and others. Ready to make an eye-catching style statement?
Cant Harry Potter Fix His Eyesight
Harrys poor eyesight is collateral damage from Avada Kedavra, the darkest of evil curses. Body parts that are damaged, destroyed, or severed due to dark curses dont seem to be repairable in Potterverse: Mrs Weasley looked round and said, I cant make it grow back, not when its been removed by Dark Magic.
Also Check: Who Plays Lord Voldemort In Harry Potter
Does Harry Potter Glasses Have Lenses
Harry Potter, the wizarding boy who was first launched to fame in 1997 and graced our screens in 2001, is one of the most recognised names in the world. His glasses are almost as unique as his scar with their completely round lenses and thin frames in a style that even John Lennon would find hard to pull off.
Fun Facts About Harry Potter’s Glasses
And last but not least, a few fun facts for our Potterheads:
Did you ever notice that Harry Potter is the only Hogwarts School ofWitchcraft and Wizardry student wearing glasses? There’s;only anotherperson who wears a visual aid, and that is Moaning Myrtle but she isa;ghost.
This stylistic choice was made to emphasize the fact that Harry isdifferent and that he is the chosen one.
Finally, do you know how many glasses Daniel Radcliffe wore during theshooting of the movies? A;whopping 160;pairs!
Are you a Harry Potter fan?
Don’t forget to click the share button!
Don’t Miss: Which House Would You Be In
Do These Harry Potter Glasses Look Appealing To You
Well, Harry Potter glasses style has made these round shaped glasses famous around the whole wide world. You might have come across a lot of young children also who have been wearing these Harry Potter glasses frames due to eyesight problems.; Since, children are more attracted to the fictional and fairy tale characters, no wonder, Harry Potter has spellbound not only children but adults as well. Harry Potter has a huge fan following which includes, not only children but a large segment of adults too.
Why Is Harrys Eyesight So Bad
But also, I think that Harry really got his bad eyesight from Voldemorts attack. He killed Lily Potter in front of Harry, and the killing curse is described as sending off a blinding flash of green light. Harry was one year old at the time, so it would make sense that his eyesight was damaged from the killing curse.
Also Check: What Is Hermiones Middle Name
Did Hermione Fixes Harrys Glasses
In Harry Potter the Chamber of Secrets, Hermione casts a spell to repair Harrys glasses. She also does the same in Harry Potter and the Philosophers Stone. According to Magic Law, underage wizards are not allowed to do magic outside of Hogwarts. We also saw that Harry gets punishment for doing the same.
Trend Alert: Harry Potter Glasses
Written by on 21 Jan 2021
Due to the great popularity achieved by the Harry Potter series of books andfilms, it shouldn’t come as a surprise that his iconic glasses became a huge hitamong the millions of fans around the;globe.
Curious to find out why the famous wizard wore glasses in the first place andwhere you can get a pair of Harry Potter glasses? Keep reading!
Read Also: Who Gives Harry Potter The Nimbus 2000
Let Us Know More About These Glasses
Do Harry Potter Glasses Look Attractive?
Be it children or adults or senior citizens, Harry Potter Style Glasses look good on every face. These metallic frames are round in shape and are very simple in appearance but yet very appealing. These days a lot of children suffer from weak eyesight due to the burden of studies and hooking up to mobile phones all day long. Small kids do not accept spectacles so easy to carry them on their nose but they would love to do it when their favorite superhero or cartoon character does the same thing. So, yes it is appealing and attractive to kids especially for whom Harry Potter is their favorite superhero Character. Besides children, adults also love this character of J. K. Rowling insanely.
What Type of Frame Style Does Harry Potter Glasses Have?
Of course, round glasses are the basic identity of these types of glasses. If you saw the Harry Potter Series, the frame which this character wears is a thin metal frame with round lenses. So it is just a metal frame with round lenses. What makes it unique is the round lenses and nothing else. You may find a variety of variants in the markets or what we can say is that people have customized it according to their choice, need, and fashion.
Colour and Texture of Harry Potter Style Glasses
Moreover, thickness has also now been customized. Harry Potter wears the thinnest frame that you can see if you observe minutely but today the picture is different.