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The History and Importance of Binoculars

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Simone 110gs

on 7 November 2013

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Transcript of The History and Importance of Binoculars

Physical and Social Benefits of Binoculars:
Physical: allows you to see far distances and makes jobs easier so people can perform their job properly and efficiently
Modern Societal Uses of the Binocular:
Requirements for Efficient Binoculars:
Lenses:
The lenses used in binoculars are convex lenses, usually 2 or more. If there are more lenses, the magnification will be more intense
How Do Binoculars Function?
Why Was it Invented?
We suspect Galileo wasn't intentionally designing a telescope with 2 spy glasses, it was simply more efficient than only 1. His intention was to improve the distance of how far you can see from the telescope. His design with 2 spy glasses worked much better, thus inventing the binoculars.
Who Invented the Binoculars?

According to many resources; there are several inventors who claim to have invented the binoculars, but following the first documented patent;
Galileo Galilei
invented the first binocular telescope.


1613
1645
1702
1671
1609
1608
Antonius de Rheita
Cherubin d'Orleans
Johann Zahn
The first hand held binoculars were invented by Johann Zahn, using 2 tubes a lithe connection.
Galileo Galilei
This Dutch scientist was believed to create the first telescope, which was essential in order for Galileo to develop binoculars.
Hans Lippershey
The Italian scientist Galileo heard of Hans Lippershay's invention of the telescope, deciding upon himself to further improve it. His improvement allowed the viewer to see 30x as far than before, the first astronomical binocular telescope. The changes that consisted were putting 2 spy glasses together, and using Galilean optics (also his invention). He named it the Galilean binoculars.
Modern version of an Astronomical Binocular Telescope
Galileo's Astronomical Binocular Telescope
Ottavio Pinani
Coin Operated Binoculars: for public's use to view scenic areas
Bird Watching: bird watching enthusiasts and hikers can see the birds and wild life much more visibly with efficiency
Hunting: hunters can very effectively kill animals with a crystal clear view of their target either close range or further away with either a scope adjusted to their rifle or having a spotter with binoculars in hand
Sports: while sports fanatics are far up in the Grand Stand and can't see the game as close
Modern Scientific Uses:
Military/Navy: binoculars can be used to see the enemy coming towards the ship or camp
Astronomy: astronomical binocular telescopes can be used to observe stars and planets to learn more about space
Social: binoculars can be used for leisure activities or organizations that involve outdoor activity
Binoculars are very effective at doing what it is meant to do because because there are now many different uses for binoculars involving scientific research, leisure and outdoor activities, and efficiently sufficing certain job requirements
Effectiveness?
Eyepiece:
the eyepiece performs the function of bringing the image into focus and makes it visible for our eyes to see it
Prism:
this is located between the lenses and the eyepieces. It has 2 tasks; bends the light rays that enter the binoculars, then magnifies the image and flips the image. Without the prism, the image would appear upside down

When binoculars are pointed at a distant object, the light rays from the object fall on the objective lens

the objective lens picks up the light rays; makes a focused image

this image is picked up by the smaller lens and is then magnified

the magnified image is then sent to the prism

it flips the image and sends it to the eyepiece to make a 3D image, so we can view the image

NOTE: Some binoculars have a 'center focus wheel' where it allows you to adjust the magnification to be sharper
Types of Binoculars:
Porro Prism Binoculars:
(Invented by Ignazio Porro, 1854) Roof prisms have straight tubes (the objective lens is in line with the ocular lens) which makes them more compact. Provide a wider field of range, the offset lenses give a greater depth perception which allows more light capacity for a brighter image

Roof Prism Binoculars:
(Invented by Achille Victor Emile Daubresse, 1880) Porro prims have a single pivot between the two halves of the binoculars, which makes it easier to adjust the distance between the eyes. Gives a smaller field of view and less depth perception.
The History and Importance of Binoculars
By: Simone D'Hondt and Hannah Anderson
Web Sources:
www.ninoculardepot.hubpages.com
www.buzzle.com
www.optexsys.com
www.wikipedia.org/wiki/binoculars
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