ISO 14132-3:2021 Optics and photonics — Vocabulary for telescopic systems —Part 3: Terms for telescopic sights

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Optics and photonics — Vocabulary for telescopic systems —Part 3: Terms for telescopic sights是ISO于2021‑02‑12发布的ISO标准,适用于全球范围。

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Optics and photonics — Vocabulary for telescopic systems —Part 3: Terms for telescopic sights
Optics and photonics — Vocabulary for telescopic systems —Part 3: Terms for telescopic sights(截图)

 

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INTERNATIONAL STANDARD ISO 14132-3:2021

Optics and photonics — Vocabulary for telescopic systems —

Part 3: Terms for telescopic sights

1 Scope

This document applies to telescopic sights used on hand-held firearms and airguns and gives terms and definitions for telescopic sights only.

The alphabetical indexes of terms that are common for all published parts of ISO 14132 are published in ISO 141321‑ .

The definitions can be changed, if required, by introducing derivative attributes into them, revealing the meanings of the terms used, showing the objects covered by the scope of the notion being defined. These changes will not affect the scope and contents of this document.

2 Normative references

There are no normative references in this document.

3 Terms a nd definiti ons

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp

— IEC Electropedia: available at http://www.electropedia.org/

3.1

telescopic sight

telescopic observational instrument which is mounted on hand-held firearms and airguns and used for sighting

3.2

main tube

main body of a telescopic sight (3.1)

3.3

central tube

in most cases slimmest part of a telescopic sight (3.1) located between eyepiece and objective cell

3.4

objective tube

straight, mostly cylindrical part of the main tube (3.2) in which the objective housing is mounted

3.5

parallax

angular deviation between the aiming points (3.12) for on‑ axis and off‑ axis observation

ISO 14132-3:2021

3.6

parallax-free distance

object distance for which the shift between the image of an object and the axial position of the reticle becomes imperceptible for on‑ axis and off‑ axis observations

Note 1 to entry: In the above case, the angular deviation for off‑ axis observation is zero.

3.7

elevation adjustment

system to adjust the relative position of the object image and the reticle in vertical direction

3.8

windage adjustment

system to adjust the relative position of the object image and the reticle in horizontal direction

3.9

reticle adjustment range

independent adjustment range for the relative position of object image and the reticle in each of the two perpendicular directions for windage and elevation corrections

3.10

reticle tracking

angular deviation between the reticle adjustment axes (elevation and windage) and the axes that are defined by the reticle lines

3.11

aiming mark

structural part of the reticle which is used for aiming

Note 1 to entry: Note that besides the term "aiming mark" in some languages (but not in English) there exists a special term for the hunting style type of aiming mark, e.g. in German "Absehen", "Abkommen".

3.12

aiming point

point on an object which corresponds with the aiming mark (3.11)

3.13

f i r s t i m a g e pl a ne

image plane of the objective

3.14

second image plane

image plane of the erecting system

3.15

subtension value

subtension measure

equivalent of a measure of the aiming mark (3.11) in the object plane

3.16

point of impact

point where the bullet actually hits the target

3.17

shift of point of impact

sighting in

action to eliminate the deviation of point of impact (3.16) from line of sight

3.18

line of sight shift

displacement of the line of sight due to zooming or focusing

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