Reflector Telescope

A telescope is an instrument designed to look into faraway places. The first ones were created as far back as the 11th century by Arabian scientists. This era was known as the Golden Age of Islam and the invention of the optical lens that later lead to the development of the first telescope was one of numerous inventions of many other ‘firsts’ by Arab or Muslim Scientists. Large telescope mirrors only came about much later. These reflectors were designed to reflect light in such a manner as to reveal or highlight shadowed areas. Glass large telescope mirrors (it was silver coated) were replaced by metal mirrors in reflector telescopes only in the mid nineteenth century. At the time it was considered a huge improvement in the quality of the telescope.
Modern Telescopes
Large telescopes have been developed and have tremendously improved over the last few decades.
The newest telescopes are only as good as the performance of its reflectors. A reflector is designed to redirect light. Sunlight or starlight is being absorbed and the redirected by the reflector. The main objective for this redirection is to enable the viewer to spot or observe areas that are shadowed or obscured. This makes it ideal for deep space probing.
The further the object, the bigger the reflector. Huge reflectors are currently found in observatories around the globe. To be able to see what is happening in deep space areas, large telescope mirrors have been designed and built into these reflectors.
These large telescope mirrors are specially crafted and technically designed to reveal more details about everything out there. Images observed from the large telescope mirrors are on many occasions breathtaking. Because of reflector telescopes finer details are revealed on the moon as well as distant planets. The enormous amount of nebulas as well as clusters of stars may become easier identifiable. For the amateur astronomer it is relatively easy to build a reflector telescope with a large telescope mirror from scratch. After a sightseeing tour into space will have most amateurs go for bigger and better.
Where Are They Found?
The largest and most magnificent telescope that was put into space was of course “The Hubble Telescope”. After an initial flaw in one of its mirrors scientists occasionally go into space to service Hubble. Because of Hubble’s ability to reflect images of deep space a lot more clearly and accurately it has enabled astrophysicists to uncover many breakthroughs.

You want to build your own Telescope for home use, and then you will definitely need to fabricate your own mirrors.

Dependents on making your own mirror would be the size, design and complexity of the telescope you want as your end product. A Newtonian Reflector is considered the most common telescope built by amateurs and is a good starting project. Plans on telescope mirror making are widely available.

Telescope mirror making needs careful ‘calibrating’, or testing. Before you get to this stage, you need to grind, polish and your glass needs to be ground and polished to a very accurate point using a series of tools which should be similar in size to the glass, using a series of finer abrasives. You will also need a polishing pitch lap.

Construction

You have to test your Mirrors the shape of your mirror. A common method to use would be Foucault Tester, simple to fabricate, consisting of a light bulb, a piece of tin foil punched in the centre with a pinhole and a razor blade.

Set up the Focault Tester close to mirror’s radius of curvature. The tester is adjusted so that the knife-edge interrupts the returning beam from the pinhole light source. Viewing the mirror from behind the knife-edge shows a pattern on the mirror surface. If the mirror surface is a perfect spheroid, the mirror appears evenly lighted across the entire surface. If the surface is paraboloidal, the mirror looks like a donut or lozenge. It is possible to calculate how closely the mirror surface resembles a perfect paraboloid by placing a special mask over the mirror and taking a series of measurements with the tester. This data is then reduced and graphed against an ideal

While this is a very sketchy article on telescope mirror making, it is best to keep in mind the following matters. The difficulty in telescope mirror making is in the construction and should be a very important factor in how you choose your project. Keep in mind that in each design the difficulty of construction grows as the ‘square of the diameter grows’. Simply, A 4 inch Newtonian telescope is considered fairly ‘easy’, whereas a 6 inch Mirror is a good size since construction is considered ‘not difficult’. But, a 12 inch would be ‘difficult’ while anything approaching or exceeding 1m would usually be tackled by small groups.

It goes without saying that the large telescope mirror can only be constructed by a myriad of Engineers in a location designed for it.

A very good source of information on telescope mirror making is the online library. You cannot only find all the information on Telescope Mirror Making in deeper details.
Either way, telescope mirror making is generally cheaper to make than it would be to buy commercially.

Telescopes have been fascinating people for centuries. Being able to bring a bit of the Galaxy closer to us is very appealing and makes it less mysterious.

Apart from using a telescope to study the stars, they are not only designed for this purpose. Sailors, for one, have for eons been dependant on them for their safety and welfare.

In order to have a working Telescope, you need a primary lens and an eyepiece. This mechanism is paramount and without it, you don’t have a telescope. The basic idea is to collect light, lots of light inside the telescope tube to form a bright image. The eyepiece lens takes this bright image and magnifies it onto your retina by spreading it out so that it looks larger. If we had bigger eyes, we would be able to collect this light ourselves and thus create a larger image.

To illustrate as simply as possible how these lenses work, try this simple exercise. You need two magnifying glasses. One larger than the other. Add to this list, a sheet of printed paper. Look through the larger glass at the paper, the image should look blurry. Take the second glass and hold it between your eye and the larger magnifying glass.

Now, move the second, smaller, glass backwards and forwards until the print on the paper comes into sharp focus. The print should look larger, but it is upside down!

Congratulations, you have made your own Telescope.

Telescope mirror making is no longer the domain of experts and Engineers. If you want to tackle the task of making your own telescope you can easily find telescope mirror kits for sale

Making Your Own

There are various options of telescopes mirror kits to choose from when deciding that you want to make your own Telescope.

Telescope mirror kits are available on the Web and include all the parts you need as well as tools and instructions.

You would first need to decide which type of Telescope Mirror you want to make and then search for the appropriate telescope mirror kit. Common telescope mirror kits are based on Newtonian or Dobsonian.

If you opt for a Newtonian telescope mirror kit, you can find a very simple kit on the web as this will have the important things you need in building your own telescope. The best way is to start with cheap kits that have little telescopes. This way you can get the practice that you need.

If we think about NASA and other observing stations across the world, we would not think of a multiple mirror telescope as being a small item, and indeed the first multiple mirror telescope was definitely not! Starting off its life in Arizona as 6 individual mirrors each spanning approximately 1.8m in diameter to be used in Military satellite installations. These mirrors were taken over by the Smithsonian and in 1979, after the Cold War. Built on Mt. Hopkins, the first multiple mirror telescope the overall size when mounted on a lightweight, small frame, measured about 4.5m in diameter. A multiple mirror telescope measuring 6.1 m in diameter has since surpassed it.

However, although it performed well, this first multiple mirror telescope was not without glitches. The combined diameter of all 6 mirrors measured about 4.5m across and it was sometimes difficult to get this multiple mirror telescope operating as one by getting the mirrors to focus on exactly the same spot at the same time.

Since then much larger multiple mirror telescopes have been constructed. An example of this is the SALT telescope. Being amongst one of the largest telescopes in the world, but THE largest Refractory, this telescope resides in a town called Sutherland in the Cape Province of South Africa. It measures approximately 11m in diameter!

The mirrors on this Telescope look like the honeycomb you would find in a beehive. This is a new technology which allows future builders to make even larger telescopes, larger than we can possibly imagine, and will not be able to be constructed with single mirror Telescopes.

Most of the challenges faced while building multiple mirror telescopes have been overcome, and the ‘sky is the limit’ for Engineers now. In fact, a 30m Telescope is under development right now, consisting of segmented mirrors, it is purported to be unmatched in performance and should be completed in 2017, or thereabouts.

Could You Make One Yourself?

No! Definitely not! They are HUGE. Apart from that, they are complicated, they need to be calibrated to a fraction of a degree and computers, which have been programmed with endless mathematical equations, operate them.

The only multiple mirror telescope anybody would be able to make would in the form of a scale mode. Telescope mirror kits can be found and building one would be fun to make, at the same time as satisfying the curiosity of anyone who has ever wondered how they are designed.

Every project that you undertake whether it is making a telescope or learning the significance of telescope mirror grinding can seem daunting at first. The trick to learning anything new is to have patience.

Perhaps that is a cliché that has been repeated constantly over the ages, but it does hold true. Most people do not want to invest the time and assume that everything will happen fast. The reason that patience is key to learning the art of mirror grinding is perfection. If you are to succeed you will have to dedicate yourself to the project.

The best way to achieve this is through initial research. You will be amazed at just how many telescope mirror grinding tricks and tips are available. The other important factor when you want to hone in on the crucial chore of telescope mirror grinding is to ensure that you use more than one source. Often or not people make the mistake of assuming that the Internet is the only place that you can find information.

However this is not true. You can visit your local library or purchase a hard copy book, which will provide you with in depth information on telescope mirror grinding. Do not assume that you will become an expert in one day. Just because you are fast learner does not necessarily mean that you will harness the skills needed for telescope mirror grinding. Indeed the saying about the ‘best laid’ plans is true.

The Planning Stage Is Crucial For Success With Your Telescope Mirror Grinding Project

You will have to plan your telescope-making project from start to finish. Each stage needed is to be noted down. This way you can monitor your progress and see if you are on target. In fact planning also keeps you motivated as you will know what you are doing from day to day. By reading your resources, which you have gathered on telescope mirror grinding, you will find that the planning stage is relatively easy.

All you have to do is commit to your project. It is also important to note the finances needed to partake in such a venture. Your budget will also be reflective of the information that you have gathered in regards to a single mirror telescope or a multiple mirror telescope. You can also get your supplies, tools and equipment from auction sites.

This will help you save some money. Once completed your telescope-making project could be the pride ticket that you have been waiting for.

Knowing the ins and outs of making or buying a telescope can make the overall experience of owning a telescope wonderful. The telescope is not only about obtaining the view to the stars but also the key to a new hobby.

Most people find that making their own telescope can be rewarding, while others go for the ready-made route. Whichever route you fancy it is important to know about your telescope mirror cells. The reason for this is that the telescope mirror cells are what hold your telescope mirror.

If you are keen on telescopes but no keen on pre-made ones, then perhaps making your won telescope mirror cell might just be the right project for you. There are many types of materials that other telescope makers use but most try to stick to the traditional way of making a telescope mirror cell, which is using Masonite.

This material is easy to cut and readily available, so you will not be struggling with a saw or having unnecessary frustrations. The art should be enjoyed and should not feel like it is a chore. Your love of telescopes should not be shadowed by the seemingly complex tasks involved. The muscle work should not lie in the creation of the wonderful telescope mirror cell but form the enjoyment when usable. This way you can easily boost your confidence and ego by creating your own wonderful and personal telescope, which can make you have that sense of achievement.

Going the DIY Route For Mounting Your Mirror

It is never easy to actually find the right technique that will make mounting your mirror easy, but the key is first having the right tools and techniques for telescope mirror grinding. This is always the daunting task, but it can also be the most exciting.

After you have done this you will need to make sure you have the right size telescope mirror cell. This might mean that you have to grind your mirror just a bit so that it can fit comfortably on the telescope mirror cell. There is not much rocket science to mounting your mirror on the telescope mirror cell, all you need is the most efficient method.

Since glue is out of the question most people find that using the method of joining through taping it around with plastic electrical tape never fails. While this method might seem a bit primitive it is still very useful and effective. However with more research you are bound to hit on a way that helps you mount your mirror on the telescope mirror cell without the hassle of having to use tape.

World and outer world fascination has always seemed to hold man in its power. Human beings seem to have a capability to want to know more about all the planets that exist within our solar system and in worlds beyond. Perhaps our fascination of life beyond earth is the key that fuels all types of inventions that permit us to hope that we are not alone.

It is therefore no wonder that science has such a huge following and NASA such a great interest. The human curiosity is something that can be hard to quench, as it seems to grow fiercer with each new generation.

The invention of the telescope has always been hailed as the time when science made progress. That is why the interest in the telescope mirror is so intense. It not only signifies the need for progress but also the need to know. Indeed it can be said that the telescope mirror is the keyhole to the soul of the world.

The hype of creation has now seemed to have a stake hold in most people’s lives. It seems that some science nuts want to give the telescope mirror a more personal touch. This has lead to the DIY action of creating these telescope mirrors and in depth knowledge is about the telescope mirror cell is being gained. It is no wonder that the Internet is now loaded with ways of making your own telescope along with the crucial element, which is the telescope mirror.

The Perfection Lies In The Glass

For the first timer in telescope making it may seem a bit confusing as to how to get the shape of one’s telescope mirror right. It seems that all this lies in the shaping of the glass. Choosing the right glass type can be a bit daunting, but there are many professional websites dedicated to showing you how to achieve this.

The trick is to know the required thickness, baring in mind that the thicker the glass the more work it will require to get into the perfect sphere. You simply can talk to glass manufactures and find out which is their best glass. They will be able to advice you on the sturdy nature of the different types of glass as well as the type of glass, which might be ideal for telescope, use.

The appreciation in the telescope mirror is that it does indeed keep the flames of curiosity alive. Seeing something outside of the earth with just a tiny instrument can give one a much needed adrenaline rush.