Photographic optical system
An optical system and lens technology, applied in the field of photographic optical systems, can solve problems such as insufficient overall brightness of the picture, limited imaging performance, unfavorable chromatic aberration correction, etc., to achieve the effects of correcting chromatic aberration, improving optical performance, and good reliability
Active Publication Date: 2018-09-14
RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD
View PDF4 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The existing photographic lens with six lens groups is limited by the material, which is not conducive to the correction of chromatic aberration, and the aperture is small, the overall brightness of the captured picture is not enough, resulting in limited imaging performance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0053] see figure 1 , is a schematic structural view of a preferred embodiment of the photographic optical system provided by the present invention. The photographic optical system 100 is mainly composed of six lenses arranged coaxially, including a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and The sixth lens L6 has a specific structure as follows:
[0054] The object side of the first lens L1 is convex on the paraxi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a photographic optical system which comprises a first lens (of which a focal length is f1), a second lens (of which a focal length is f2), a third lens (of which a focal lengthis f3), a fourth lens (of which a focal length is f4), a fifth lens (of which a focal length is f5) and a sixth lens (of which a focal length is f6) in sequence from an object side to an image side, wherein the lenses are coaxially arranged and meet the following condition equations: f1 / f is greater than 0.8 and is less than 1.2; f2 / f is greater than -8 and less than -1.4; f3 / f is greater than 400and less than 600; f4 / f is greater than 5 and less than 18.0; f5 / f is greater than 0.1 and less than 1; f6 / f is greater than -1 and less than -0.1; f is a focal distance of the whole photographic optical system. Due to reasonable surface shape optimization, focal power allocation and optical material selection, the invention designs a large relative aperture photographic optical system which is capable of providing imaging properties in a low illumination environment, is clear in imaging, and in addition is relatively good in temperature and humidity reliability.
Description
【Technical field】 [0001] The invention relates to a photographic optical system, in particular to a photographic optical system for portable electronic equipment. 【Background technique】 [0002] In recent years, with the vigorous development of miniaturized photographic lenses, the demand for miniature imaging modules is increasing day by day, and the photosensitive elements of general photographic lenses are nothing more than two types of photosensitive coupling elements or complementary metal oxide conductor elements, and with the development of semiconductor The improvement of manufacturing technology has reduced the pixel size of the photosensitive element, coupled with the development trend of today's electronic products with good functions and thin, light and small appearance. Therefore, miniaturized photographic lenses with good imaging quality have become the current market. mainstream. [0003] In photographic lenses using photosensitive elements, the resolution of...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B1/00
CPCG02B1/00G02B13/0045G02B13/18G02B9/64
Inventor 卞旭琪
Owner RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD