Free-form surface folding type panoramic lens

A panoramic lens and fold-back technology, which is applied in the field of panoramic lenses, can solve the problems of inconvenient maintenance, difficult adjustment of the focal length of fold-back lenses, and inconvenient replacement of lens components.

Inactive Publication Date: 2018-09-18
天津煋鸟科技有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 201310257672.6 is a panoramic imaging device and method, which realizes 360-degree panoramic imaging with a large imaging surface. Using multiple image sensors for image stitching can obtain a larger imaging surface, and at the same time improve the image resolution at the edge of the field of view. The focal length of the traditional lens is generally difficult to adjust, and the parts inside the lens are inconvenient to replace and repair

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Free-form surface folding type panoramic lens
  • Free-form surface folding type panoramic lens
  • Free-form surface folding type panoramic lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment one: when adopting this lens to take pictures, the light passes through the curved surface lens 3 and is irradiated on the top of the reflector 5, the reflector 5 reflects the light, and it is converged once, and the light after reflection reaches the concave mirror 4 top for a second meeting Gather, and then pass through the light hole 8 to the liquid lens 10, the liquid lens refracts the light, and converges the light to the CCD sensor of the camera.

[0023] In this embodiment, when adjusting the focal length, the movable cylinder 2 is first rotated, and the movable cylinder 2 moves relative to the fixed cylinder 1, and the distance between the reflective mirror 5 and the concave mirror 4 changes. When reducing the focal length, the movable cylinder 2 is rotated to make the reflective mirror 5 and the The concave mirror 4 approaches, the reflected light path becomes shorter, and then the screw 19 is rotated accordingly, the screw 19 rotates inside the adjus...

Embodiment 2

[0024] Embodiment 2: In order to obtain a wider shooting range, when replacing the reflector 5, rotate the moving cylinder 2, remove the moving cylinder 2, and separate it from the fixed cylinder 1, and then insert the special hook for the replacement lens into the light transmission hole 8 , the head of the hook is provided with a protective cover to avoid poking the liquid lens 10, rotate the mirror 5 with the hook, the connecting block 6 slides along the limit groove 7, when sliding to the turning point of the limit groove 7, turn the moving cylinder 2 upside down, connect the block 6 slides along the limiting groove 7, and the reflector 5 is separated from the interior of the fixed cylinder 1.

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

No PUM Login to view more

Abstract

The invention discloses a free-form surface folding type panoramic lens. The panoramic lens comprises a fixed cylinder, a movable cylinder and a liquid lens, wherein the movable cylinder is connectedto one side of the fixed cylinder, and a curved surface lens is fixedly mounted on one side, far from the fixed cylinder, of the movable cylinder; a concave mirror is mounted at the upper part of thecurved surface lens, a reflecting mirror is mounted in the fixed cylinder, a light transmission hole is formed in the center of the reflecting mirror, a connecting ring is arranged on one side of thereflecting mirror, the outer side of the connecting ring is fixedly connected with the inner wall of the fixed cylinder, and the liquid lens is fixedly connected to the inner side of the connecting ring; and a protecting shell is fixedly connected to the outer side of the fixed cylinder, a liquid storage box is arranged in the protecting cover, and the fixed cylinder and the movable cylinder are connected through threads. According to the free-form surface folding type panoramic lens, the distance between the concave mirror and the reflecting mirror is adjusted through the fixed cylinder and the movable cylinder, and a rotating screw rod is matched for use, so that change of the curvature of the liquid lens can be changed, and the focus length can be adjusted; and the fixed cylinder and the movable cylinder can be separated, so that the maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of panoramic lenses, in particular to a free-form catadioptric panoramic lens. Background technique [0002] Freeform surface refers to the surface whose surface shape cannot be processed continuously and has the arbitrary characteristics of traditional processing and forming. When applied to the lens, it can improve the pixels and resolution of the edge scene. It is very suitable for panoramic shooting of the ring area, and the return type The lens is equivalent to adding a concave mirror with a hole in the center and a small concave mirror installed in the center of the lens on the basis of an ordinary lens. The light refracted through the front lens of the lens is reflected twice, so that the light path is divided into three sections. As a result, the length of the lens is about half shorter than that of a telephoto lens with the same focal length, and the entire length is only a quarter of the focal leng...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02G02B7/182G02B7/04G02B13/06G02B3/14
CPCG02B7/02G02B7/04G02B7/182G02B13/06G02B3/14
Inventor 张少军孙飞赵玉林
Owner 天津煋鸟科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap