SU993186A1

SU993186A1 - Photo lens (its versions)

Info

Publication number: SU993186A1
Application number: SU813338387A
Authority: SU
Inventors: Александр Алексеевич Токарев; Людмила Ивановна Самарина
Original assignee: Предприятие П/Я В-8450
Priority date: 1981-09-11
Filing date: 1981-09-11
Publication date: 1983-01-30

Description

(54) ФОТОГРАФИЧЕСКИЙ ТЕЛЕ(ЖЪЕКТИВ (ЕГО ВАРИАНТЫ)(54) PHOTOGRAPHIC BODY (LENS (ITS OPTIONS)

1one

зофетение относитс к оптическим системам, в частности к фотографичвсг ; КИМ дпиинофокусным телеобъективами может быть использовано в зеркальных фото аппаратах типа Зенит.Snuffing refers to optical systems, in particular to photography; CIM dimple-focus telephoto lenses can be used in the mirror photo devices such as Zenith.

Известен фотографический телеобъектив , включающий оптические компоненты, установленные на оп1 еделенном рассто нии друг от друга С1 .A photographic telephoto lens is known, including optical components mounted at a certain distance from each other C1.

Однако телеобъектив не обеспечивает щ высокого качества изображени при заданной светосиле и фокусном рассто нии.However, a telephoto lens does not provide high image quality at a given luminosity and focal length.

Известен фотографический телеобъектив , содержащий три двухсклеениых из ts положительной и отрицательной линзг компонента причем перва линза первого и второго мпонектов - дво ковыпукла , а третий компонент состоит из дво- ,„ ковыпуклой н дво ковогну гой линз с 21.20A photographic telephoto lens is known, containing three dvuhkleenykh of ts positive and negative lens of the component and the first lens of the first and second mono is a two-convex, and the third component consists of two, two co-convex lenses with 21.20

Недостатдюм объектива вл етс ниэкое качество изо ажени при заданной светосиле 1:П 1:3,5 н фокусном рассто нии 2ОО мм, что объ сн етс неудачным выбором схемы, расположением JI формой линзы.The disadvantage of the lens is the poor quality of imaging at a given luminosity of 1: P 1: 3.5 and a focal length of 2OO mm, which is explained by the unsuccessful choice of the circuit, the location of the JI lens shape.

Цельюо ете|т - повышение качества изображени объектива, работакшего в спектральном диапазоне от О,4 до о; мкм, и использовани более технологичных марок стекол..The goal is to improve the image quality of the lens operating in the spectral range from 0, 4 to o; um, and the use of more technological glass brands ..

Поставленна цель достигаетс тем, что в фотографическом телеобъективе по первому варианту, содержащем три двух- склеенных из положительной и отрицательной линз, компонента, причем перва линза первого и второго компонентов - дво ковыпукла , а третий компонент состоит из дво ковыпуклой и дво ковогнутой линз, втора линза первого компонента выполнена в виде плосковогнутой , а втора линза второго компонента - в виде дво ковогнутой.The goal is achieved by the fact that in a photographic telephoto lens in the first embodiment, containing three double-glued positive and negative lenses, the component, the first lens of the first and second components is a two-convex, and the third component consists of a two-convex and two-curved lenses, the second the lens of the first component is made in the form of flat-concave, and the second lens of the second component - in the form of double-concave.

Claims

In the photographic lens according to the second variant, which contains three dual-glued xv ponenta positive and negative lenses, the first lens of the second component is a two-convex. and the third component consists of a double-triced and double-concave lenses, the first component consists of negative and positive meniscuses facing the concavity of the image, and the second lens of the second component is double-concave. FIG. 1 shows the prior optical optical lens scheme, the first version of FIG. 2 - the same second option. The lens contains three two-component Components, the first of which consists of a double-indented 1 and a flat-concave 2 lenses in the first embodiment (Fig. 1) or a negative 1 and a positive 2 meniscus in the second embodiment (Fig. 2 of the second concave in 3 and two in Concave 4 lenses , and the third of the two plug 5 and double-curved lenses 6. The advantages of a telephoto lens for both options as compared to the known ones are in higher image quality at a focal length of 2OO mm and aperture 1: n 1: 3.5 in the spectral range 0 , 4-0, .7 microns. Known volume The Jupiter lens is 21 m. The advantages of the proposed telephoto lens compared with the known lens are in a higher luminosity l: rt 1: 3.5 instead of 1: n 1: 4, the image quality increases to 70 LIN / mm in the center of the floor and 55 lines / mm at the edge of the field of view, compared with 5O LIN / mm at the center and 36 lints at the edge of the field of view in a Jupiter 21 M lens, and also at a shorter length (17 mm shorter than the Jupiter 21 M lens) Formula of the invention 1. Photo telephoto lens containing three bi-glued positive and negative component lenses, and The first lens of the first and second components is a two-fold lens, and the third component consists of two-concave and two-concave lenses, in order to enhance the image quality in the spectral range 0.4- 0.7 MICM and the use of more technological glass brands; the second lens of the first component is flat-concave, and the second lens of the second component is double-concave. 2. A photographic telephoto lens containing three two-glued components of the positive and negative lenses, the first lens of the second component is a double capsule, and the third component consists of a double layer and a double-curved lens, characterized in that in order to improve the quality of the image in the spectral in the range of 0.4–0.7 μm, the first component consists of negative and positive menisci facing in with an image concavity, and the second component is a lens. the second component is double-cocked. Sources of information (schichi taken into account in the examination of 1, Patent of Germany No. 2321806, CL 42 1S, 4/10, Republic of 1978.

2. Japanese Application No. 48-10654, cl. 1O4A412, published. 1973-- (prototype).

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FIG. 2