Select the binoculars (I). Dictionary of optical terms

08 january 2017, 22:20

  • Rating:
  • (0 / 5)

A quick transition back to list of articles 09 Mar 2007 The choice of binoculars is a difficult business for those who infrequently have to deal with optics. To fully assess the advantages and disadvantages of the vending device you need to know special terminology used in the technical descriptions of binoculars. The more often that such descriptions are given in English without translation into the Russian language. Below we provide a small dictionary of optical terms with their concise definitions. Hope it helps you in wandering through the shelves of the shop Protopic. Nitrogen filling Nitrogen Fill filling the internal volume of the binoculars with nitrogen gas.

This filling prevents fogging of inner optical parts of the system even at sharp jumps of temperature from 40 ° C to + 80 ° C. Aperture Аperture synonymous with the Entrance pupil of the entrance aperture of the optical device by which to limit the bundles of light rays emanating from individual points of the observed object. By analogy with the human eye pupil also limiting incoming in the eye bundles the light rays of the input hole is called the entrance pupil of the optical device. The binoculars as aperture supports the rim of the front lens. Aspherical lenses Aspherical eyepiece lenz while the surface of conventional lenses is limited by the two correct segments of a spherical surface, the curvature of aspheric lenses is maximal in the center and becomes smoother at the edges. This form allows the lens to minimize the spherical aberrations reduce the image field curvature and to make the image more vivid and contrasting.

Binoculars with aspherical lenses manufactured by Minox. Binoculars Binoculars Field glass binoculars Opera glass theater binocular optical system consisting of two parallel optical systems Monocular spotting scope each of which contains a Lens, Inverting system and Eyepiece with Eyecup. The binoculars is used for observation of distant objects using both eyes. The most common types of binoculars are currently prism binoculars in which the image is made by flipping the aid of the prismatic system. Two main prismatic system of Poro-PORRO prism and ROOF-prism. The main characteristics of binoculars Increase the Diameter of the entrance pupil, the exit pupil Diameter exit pupil distance resolution Limit Angle field of view and light transmittance.

The middle focus, see Minimum focus distance. The apparent angular field of view Apparent field of view expressed in degrees, the value visible through the observation device on the segment space is equal to the product of the true field angle and frequency of the device.

  Save as PDF

  Save as image


Comments and reviews (0)

Add comment

Please rate it between 1 and 5

Read also:

Test methods of optical cable

Textbooks The physics The Magazine "Kvant" The prize winners for physics Common Jl. Optical phenomena

CSU-01(02,03,04) Device loopback control Subscription

Mouse. Record navigation

.

The external storage device. The external memory of the computer. The optical drives. Flash memory. Flash drives.

190013, Saint-Petersburg, Moscow, Russia Ruzovskaya str., 21 Nagatinsky

Optical sights for carbines

How to choose scanner?

– , .

fototechnic.ru

SVD — Dragunov Sniper rifle cal. 7.62 mm.

Scopes

The coolest optical illusion

Promotion! Special offer up ! Order your M-AUTO and get the Tool to protect the glass AQUAPEL for free! Protective optical Avtopribor-AUTO 100% save You teleplione of oncoming headlights and the sun. Appreciate the difference! Why are there accidents o

The optical system of the eye. The construction of the image. Accommodation. Refraction, violations

The eye as an optical device

Optical computers.

ELECTRONIC SENSORS

Dysgraphia

" " 12. LINEAR MEASUREMENTS ON THE GROUND

Types of computer mice

() - / .

SFP module

CD

Lesson 28Устройства memory

Device loopback control IVS-Signalspetsavtomatika CSU-01

Dental treatment under the microscope

Vision. The structure of the eye

The principle of operation of incremental and absolute encoder

The device of the microscope, the structure of the microscope

Base-answers

CD-ROM and DVD-ROM Total Search and Troubleshooting in the CD-ROM and DVD-ROM

The principle of operation of optical mouse, 10 points...?

Optical sights of the middle class

Optical media

How to choose a scope for your rifle?

Inductive and optical sensors. Variety, the principle of operation

.

Equipment PON

Optical sight Pilad POSS 4х32

The typical failure of the laser drives

Scopes

CARE OPTICAL Devices.

IT News

Cursor — a special icon on the display screen (dash, arrow, the highlighted rectangle

Technology news, video reviews, prices

Peaceful weapon — a pneumatic sniper rifle

External storage devices

1. the iPhone 6 Plus. 2. LG G 3 3. Samsung Galaxy Note 4. 4. Samsung Galaxy K Zoom 5. Google Nexus 6 6. Nokia Lumia 930. 7. Nokia Lumia 1520 8. Nokia Lumia 1020 9. Nokia Lumia 830 10. BlackBerry Passport 11. ZTE Nubia X6 12. ZTE Nubia Z7 13. Lenovo Vibe Z