• MENU >>
• Home
• About Us
• Contact Us

Name:
Password:

 Roof prism and Porro prisms

Roof prism binoculars have a modern design and are smaller than the porro ones. They have a shape of a roof of a house and so are easy to be fitted in houses that are small.

Porro prisms are generally more famous than the roof ones as these are simpler. These are however, heavier and wider than them which is a disadvantage at their side. Over here, roof prisms gain an advantage because their size is smaller because of which they occupy less space. They can be easily put in a bag pack along with a lot of items and can save space for even more while the porro ones would leave no space for other things to be kept along. They occupy a large amount of space and for people like mountaineers they can prove to be of a great disadvantage.

 

Company Resource:    PVC Painted Film, PVC Ceiling Profile

Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 Gift Baskets and The Special Events Throughout The Year

Gift Baskets are great for a variety of holidays and occasions like new baby birthday, thank you, house warming, sympathy, Mothers and Fathers day. Baskets are designed using delicious gourmet foods and a variety of keepsakes. These baskets are not only fashionable but they are also eco-friendly, as most baskets are made from re-cycled material. These are a perfect way to express thoughts of kindness, friendship and love, to name but a few. These gifts are remembered and treasured because we put the thought and care required into each basket. This a great way to make sure your customers, associates, friends and family know they are appreciated.

Gift baskets include centerpieces, strawberry gift baskets, chocolate gift baskets, plants, fruit gift baskets, flower arrangements from florists, bath product/spa gift baskets , food gift baskets, candy gift baskets, cookie gift baskets, candle gift baskets, wine gift baskets, coffee & aromatherapy gift baskets. These can be either be highly personalized or generic enough that anyone would enjoy receiving them. They are the perfect choice for any number of holidays and other special events throughout the year.

Company Resource:    Straight Binoculars, Monocular Telescope
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 The Notion of Gifts Has Expanded of Civilization

The notion of gifts has expanded with the development of civilization. As society progressed, the concept of what can be gifted has acquired a wider and deeper meaning. Frankly, any thing that carries an evocative and nostalgic value can be considered as a gift. Today, people exchange gifts on a variety of festive and jovial occasions.

The idea of presenting gifts in India is also well established since ancient times. Ancient Indians gifted grain, cattle, fabric, pottery, and even gold and silver ornaments to their peers and loved ones. The custom of giving gifts is as popular in modern India as it is the world over. India's innumerable festivals, traditions, and diverse cultures form the perfect occasion for mutually exchanging gifts. People exchange gifts on festivals and events like Diwali, New Year, Holi, Ganesh Chaturthi, Eid, Father's day, Mother's day, Valentine's day and Dussera.

Company Resource:    Big Porro Binoculars, Compact Porro Binoculars
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 Red Roses are Great Gifts for Female Friends

Red roses are great gifts for female friends. Fresh rose bouquets are all time favorites for women recipients. Alternatively,

you can send a Container garden gift which contains seeds, nutrients, soil in a leak-resistant bag which is used for its own

growing pot. This very affordable gift that blooms is a great gift to show your friends you are thinking of them.Candle gifts

and spa gift baskets are also great gifts for women. Scented natural wax candles sooth away stress, and help your recipients

to relax and refresh. Similarly, spa gift baskets contain bath crystals, bath fizzers, body gels and lotions, massager,

aromatherapy candles, slippers, and scented drawer sachets that will keep the recipient smelling delightful long after the

spa. The spa gift baskets will help the recipient to relax and rejuvenate from the stress in their lives.

Spa gifts for men are also available to help male recipients to relax. Other gifts for relaxation for men include a bullseye

treats dart board which comes with a delicious assortment of sausages, beef salami, mustard, and crackers. Other possible

gifts for male friends include snack gifts designed for men. One such gift is filled with shirt and tie decorated vanilla

cookie, cigar shaped chocolate filled cookies, chocolate pecan cookies, honey mustard pretzel nuggets and other treats. Other

gifts for men include decorative truck gift container filled with delicious treats.

Company Resource:    Straight Binoculars, Monocular Telescope
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 Great Birthday Gift and He's Sure to Love

Photo Gifts: Any man would love a birthday gift made from his favorite photo. Some of the most popular photo birthday gifts

for men include coffee cups, mousepads, puzzles, luggage tags, and photo books. You can also order cards, golf balls, aprons,

and U.S.postage stamps personalized with his favorite photo. These fun photo birthday gifts start at under $10.Other popular

photo birthday gift ideas for men are photo gadgets. This category includes digital photo keychains, clocks, and even digital

photo watches. He'll have a blast downloading his favorite photos onto these great photo gadgets!

Outdoor Living Gifts: Another fun category of birthday gift ideas for men is outdoor living gifts. Grilling gifts are some of

the most in-demand gifts for men. Grilling gifts could include motorized grill brushes, grill accessories, and even grilling

gift baskets loaded with fun grilling tools and spices.An outdoor TV would be high on most men's gift list. If you can't

quite swing the cost, perhaps he'd enjoy relaxing in a hammock, or listening to his favorite tunes on the wireless outdoor

speakers you give him for his birthday gift?

Food and Wine Gifts: With so many choices these days, gift baskets are popular birthday gift ideas for men. You can choose

from sports-themed gift baskets, wine gift baskets, beer gift baskets, cheese gift baskets...it seems like the list is

endles.Other creative gift ideas for men include in-home draft beer system (under $300!), personalized martini shakers and

shot glasses, and gourmet-item-of-the-month clubs. You can't go wrong with any of these great birthday gift suggestions.

Experiential Gifts: Some of the most thrilling birthday gifts for men include incredible experiences that you give as

presents. You can find an experiential gift that's as wild or as tame as he is. From Rock and Roll Fantasy Camp to hot air

balloon rides to NASCAR race car driving experiences, he's sure to remember this unique birthday gift!

Gadgets: Most men adore gadgets, so it's easy to see why they are such popular men's birthday gifts. How about a CarMD, the

engine code reader that will diagnose car problems for him? The grill master might like a talking remote grill thermometer

that tells him when the meat is done.

Company Resource:    Big Porro Binoculars, Compact Porro Binoculars
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 To Telescopes:the formula that shaped known

The formula that shaped known telescopes over the centuries of development is pretty basic, well known, and proven- bigger is better. This is the same as saying that larger aperture provides brighter image, while longer focal length provides greater magnification. Even so, is this formula written in stone? Let's put the formula to the test. Can large magnification be obtained without long focal length objective? The answer is yes. Microscopes provide very large magnification with relatively short focal length objective. Is it possible to collect light without very large aperture size? Again, the answer is yes. Microscope also demonstrates this. Then why is it that microscopes provide great magnification with adequate brightness at a relatively small size, while telescopes cannot? This shows that it isn't the law of magnification nor brightness, but it the instrument's design limitations that insist on the concept that bigger is better. A basic Keplerian design telescope operates as a microscope when viewed through the other end of the tube. From the fact that telescopes are basically an inverted microscope, one can see the close relationship between the two.

Company Resource:  Big Porro Binoculars, Compact Porro Binoculars 
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 All Optical Instruments are Design Around Focus

All optical instruments are design around focus; therefore it will always be a top priority in the formation of clear image. Magnification and brightness are of secondary importance, they are the result after focus is achieved. It is the critical distance of focus that determine the maximum magnification and brightness at which an image will be clearly viewed.

Magnification describes the action of converting smaller sight angles (true field) into larger ones (apparent field), this provide change in the angle at which the image rays are received, thus, tricking the brain into believing that the object is either closer or larger then it really is. If it wasn't for the need for focus, a single convex lens aEUR"a magnifier-would be a telescope capable of infinite zoom magnification, through the action of simply varying the distance it is held from the eye. Unfortunately, however, there is a critical distant at which images are focus through a single lens or even a system of lenses. This is also known as the critical distance of focus.

Company Resource:  Monocular Telescope Promotional Binoculars
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 Refractor Telescopes:Design or Fabrication

Refractor telescopes cannot obtain a 7 millimeters exit pupil without being affected by aberrations. In order to overcome this, telescope designers attempt to allocate a balance between magnification and brightness. Resolving power describes this balance. The compromise will reduce brightness, but increase magnification power and image clarity by the same proportion. The ocular plays an important role in finalizing the image of the apparent field. They are capable of influencing field of view, magnification, and exit pupil (brightness). A short focal length ocular will provide a large magnifying power, small field of view, and short exit pupil; while, a long focal length ocular will provide a small magnifying power, large field of view, and long exit pupil. From this example, one can see that magnification is inversely proportional the diameter of the exit pupil, and exit pupil is directly proportional to brightness.

From the bigger is better formula, we know that by increasing the aperture of the objective, we can increase the exit pupil and thus the brightness of the image. There are several optical design aberrations that set restriction on modem telescope design. In designing optical systems, the optical engineer must make tradeoffs in controlling aberrations to achieve the desired result. Aberrations are any errors that result in the imperfection of an image. Such errors can result from design or fabrication or both.

Company Resource:  Porro Binoculars  Big Porro Binoculars, Compact Porro Binoculars
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

 Telescope and The Mirror Manufacturing

Technique in lens and mirror manufacturing has improved significantly over the centuries. With the aid of computers, lasers, and robotics technologies, optics can be made with precision accuracy. Eventually, the size of telescopes will reduce to wearable instrument as small as a pair of eyeglasses, in the not so distance future. Telescopes will soon be comprised of very small (a few centimeters in length) tubes fitted into a headgear. They will have the advantage of precise movement and shock absorbent the human head provides.

Wide field of view similar to that of the naked eye, impressive focus, infinite magnification (limited only by light pollution and disturbance), and brightness allowing snap shot color photographing and live video recording.Headgear will be convenient, efficient, and versatile. The design reserves the potential to be up-graded and customized. After almost 400 years of telescope development, we finally have a revolutionary breakthrough now capable of reshaping telescopes science and create revolutionary optical devices to shrink football size telescopes to a view finder, and eventually into a pair of glasses.

Company Resource: Binoculars    Monocular Telescope   Waterproof Binoculars
Read more: http://www.nbbinoculars.com/blog/

 comments (0)

LBlog.dk