New 8'' Black Antique Solid Brass PERISCOPE,Made for Royal Navy LONDON-1917

Description

SIFAAT WORLD 8'' Black Commando Antique Solid Brass PERISCOPE with Beautiful Wooden Box, Made For Royal Navy LONDON-1917,Fully Functional (Replica)
Condition : Branded NEW ;
“
What you see is what you get!
”
A Periscope is an Optical Instrument that is used to see Objects which are not at the Same level as of Observer.
Principle of the Periscope:
➤
In a periscope, light from an object strikes the top Prism at 45° and bounces off at the same angle to reach the bottom prism.
➤
It works on the principle of total internal reflection (T.I.R.) of the light phenomenon. In Periscope, We use the totally reflecting prisms which turn the ray through 90°.
Uses Of Periscopes :
➤
Periscopes uses prisms providing magnification operate on Submarines and in various fields of Science.
➤
People first started using Periscope in submarines to allow sailors to see above the Water.
How this Periscope Works ?
➤
Inside this Periscope There are 2 Prisms that are Placed in Parallel and Facing Each Other. Also, there are 2 Mirrors that are Fixed near the Observer's Eye and on the Other End.
➤
The 2 Prisms in this Periscope are Placed at 45° degree angle.
➤
According to the laws of Reflection, When a ray of light falls on a plane surface. it gets reflected at an angle equal to incident angle.
➤
The Reflected light falls on second prisms and is again reflected. Hence, the first prism captures the desired image and reflects surface of second Prism.
➤
In turn, the Second Mirror Reflects the image in a way that it can be viewed by the Observer.
* This item is not Binocular, This is a Periscope.
Not Sold as an Antique,This is a Reproduction Item.
** Sold & Manufactured By SIFAAT WORLD from INDIA.
Other Features :
➤This is a
HandCrafted Item Made By Experienced Indian Craftsman
. A Periscope is an Optical Instrument that is used to see Objects which are not at the Same level as of Observer.
➤This is a
Fully Functional Working Periscope with Wooden Box
. A Beautiful Item To be Gifted to Your DAD, SAILOR'S , MILITARY PEOPLE, SHIP WORKER'S,etc. and many more to Your LOVED ONE'S.
➤Item Box Dimensions :
25 x 8 x 7.5 cm
; Total Weight Of this item with Wooden Box :
1.05 kg/2.32 Pounds
; Periscope Length -
8 Inches / 20cm
(approx.) ; Weight of Periscope Only :
0.65kg / 1.4 Pounds.
➤This Antique Item is
Made of Pure Antique BRASS, 2 - MIRRORS and 2 - PRISMS
; The Diagram to Explain How this Item Works is Engraved on the top of the Wooden Box.
➤Can be Used as an
Gift Items For Birthday Gifts, Christmas Gift,Fathers Day Gift,
etc.
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