Electronic view finder lens

Abstract

The invention discloses an electronic view finder lens. The electronic view finder lens comprises a barrel (100), wherein the barrel (100) is sequentially provided with a first lens (1), a second lens (2) and a third lens (3) from down to up, the first lens (1) is a positive plastic lens, the second lens (2) is a negative plastic lens, the third lens (3) is a positive plastic lens, the barrel (100) is provided with a light through hole (200) for eye observation, a positive focal length prism (4) is arranged between the light through hole (200) and the third lens (3), a face of the prism (4) facing towards the third lens (3) and the light through hole (200) is an aspheric face, and a face of the prism (4) used for reflecting light is taken as a full reflection face. The electronic view finder lens is advantaged in that the structure is compact, cost performance is high, and high-definition quality virtual imaging can be realized.

Description

【Technical field】 [0001] The invention relates to an electronic viewfinder lens. 【Background technique】 [0002] The viewfinder is a camera component that is often overlooked but is actually very important. It is often used in the virtual viewfinder optical lens of digital cameras, and can also be used in the latest popular head-mounted high-definition smart mobile theaters. Equipping different types of viewfinders also determines The type of camera, and even the grade of the camera. Electronic viewfinders, popularized by the popularity of single-cameras, have their own unique structure and advantages and disadvantages. With the advancement of electronic technology, electronic viewfinders will become more and more common, and the performance of electronic viewfinders will gradually improve. [0003] At present, the electronic viewfinder (EVF, Electronic Viewfinder) generally has such shortcomings: the field of view is relatively small, the details of the image display are ...

AI Technical Summary

Problems solved by technology

[0003] At present, electronic viewfinders (EVF, Electronic Viewfinder) generally have such shortcomings: the field of view is relatively small, the details of the image display are not very clear, and it is difficult to see whether someone's eyes are open or half closed when taking a group photo

The EVF commonly used in the market has a field of view around 20°, a limited range of diopter adjustment, and most of the structures have glass lenses, which are expensive

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