CN108761747B - Camera lens for shooting special-effect video and working method thereof - Google Patents

Camera lens for shooting special-effect video and working method thereof Download PDF

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Publication number
CN108761747B
CN108761747B CN201810965118.6A CN201810965118A CN108761747B CN 108761747 B CN108761747 B CN 108761747B CN 201810965118 A CN201810965118 A CN 201810965118A CN 108761747 B CN108761747 B CN 108761747B
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China
Prior art keywords
reflecting mirror
mirror surface
lens
air flow
fixed lens
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Application number
CN201810965118.6A
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Chinese (zh)
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CN108761747A (en
Inventor
许慕洁
其他发明人请求不公开姓名
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Shandong Mingda Electric Appliance Co ltd
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Changzhou Aishangxue Education Technology Co ltd
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Priority to CN201810965118.6A priority Critical patent/CN108761747B/en
Publication of CN108761747A publication Critical patent/CN108761747A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/08—Trick photography
    • G03B15/12—Trick photography using mirrors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/08—Anamorphotic objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0825—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a flexible sheet or membrane, e.g. for varying the focus
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Lenses (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

The invention provides a camera lens for shooting a special-effect video and a working method thereof, wherein the camera lens comprises a host; a fixed lens is arranged in front of the host; a special effect lens is arranged at the front end of the fixed lens and comprises a reflecting mirror surface forming an included angle of 45 degrees with the fixed lens, so that external scenes enter the fixed lens after being reflected by the reflecting mirror surface; the reflector comprises two transparent elastic membranes which are parallel to each other, and a mercury interlayer is formed between the two elastic membranes; an air nozzle is arranged behind the reflecting mirror surface and driven by a universal driving mechanism, so that the air nozzle can spray linear air flow to any position on the back surface of the reflecting mirror surface, and the reflecting mirror surface is arched forwards at the position sprayed by the air flow to form a local convex mirror. The lens can flexibly and randomly form a fisheye effect at each position of an image according to the requirement on the hardware level so as to reduce the workload of later-stage special effect production.

Description

Camera lens for shooting special-effect video and working method thereof
Technical Field
The present invention relates to the field of image pickup apparatuses, and in particular, to an image pickup lens for taking a special effect video and an operating method thereof.
Background
In the production process of film and television works, special effects are usually required to be used, wherein one special effect is a fish-eye effect, namely, a local part of a film and television picture forms an effect similar to that observed by a wide-angle lens, and actually, a local collapse area is formed on the film and television picture, so that peripheral pixels collapse towards the collapse area.
In contrast, in terms of hardware, currently, only fisheye lenses can be used, and currently, fisheye lenses are fixed, that is, only fisheye effects can be formed on the whole image or fixed parts of the image, but fisheye effects cannot be flexibly and randomly formed at various positions of the image according to needs. In order to form a dynamic fisheye effect at each position of an image, currently, only a software method can be used for post-processing a shot video picture, and since the video picture is composed of a large number of continuous frames of pictures, each frame of picture needs to be calculated and processed, the calculation amount is huge, and the processing difficulty is high.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a reflection-type special effect imaging lens that can flexibly and arbitrarily form a fisheye effect at each location of an image as needed on a hardware level to reduce a workload of a post-special effect production.
The technical scheme adopted by the invention for solving the technical problems is as follows: the reflection type special effect camera lens comprises a host; a fixed lens is arranged in front of the host; a special effect lens is arranged at the front end of the fixed lens and comprises a reflecting mirror surface forming an included angle of 45 degrees with the fixed lens, so that external scenes enter the fixed lens after being reflected by the reflecting mirror surface; the reflector comprises two transparent elastic membranes which are parallel to each other, and a mercury interlayer is formed between the two elastic membranes; an air nozzle is arranged behind the reflecting mirror surface and driven by a universal driving mechanism, so that the air nozzle can spray linear air flow to any position on the back surface of the reflecting mirror surface, and the reflecting mirror surface is arched forwards at the position sprayed by the air flow to form a local convex mirror.
Preferably, a rigid mesh plate is lined at the rear side of the reflector surface, and the rigid mesh plate forms a rigid support for the reflector surface so as to inhibit the reflector surface from deforming backwards and enable the linear air flow to penetrate through the rigid mesh plate and to be impacted to the back of the reflector surface.
Preferably, the size of the nozzle of the air nozzle is adjustable to adjust the deformation characteristic of the reflector surface, so as to adjust the range of the fisheye effect in the video picture.
The invention has the beneficial effects that: when the special-effect video of the fisheye is shot by the special-effect reflection-type photographic lens, the air flow of the air nozzle is sprayed on the back surface of the reflecting mirror surface corresponding to the position where the special effect is required to be formed on a video picture, so that the corresponding area on the reflecting mirror surface is arched forwards under the action of the air flow to form a local convex mirror, and due to the wide-angle characteristic of the local convex mirror, the local fisheye effect can be formed; with the free wandering of the airflow on the reflecting mirror surface, the fish eye effect can be freely formed at any position of the video picture.
Drawings
Fig. 1 is a schematic configuration diagram of an embodiment of the reflection type special effect imaging lens.
Fig. 2 is a schematic diagram of a partial convex mirror formed on the surface of a reflecting mirror in the reflection type special effect imaging lens.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
in the embodiment shown in fig. 1, the reflection type special effect imaging lens includes a main body 1; a fixed lens 2 is arranged in front of the host 1; the front end of the fixed lens 2 is provided with a special effect lens 3, the special effect lens 3 comprises a reflecting mirror 31 which forms an included angle of 45 degrees with the fixed lens 2, and external scenes enter the fixed lens 2 after being reflected by the reflecting mirror 31; the reflector 31 comprises two parallel transparent elastic membranes, and a mercury interlayer is formed between the two elastic membranes; an air nozzle 4 is provided behind the reflecting mirror surface 31, and the air nozzle 4 is driven by a universal driving mechanism 41 so as to eject a linear air flow to an arbitrary position on the back surface of the reflecting mirror surface 31 and to arch the reflecting mirror surface 31 forward at the position where the air flow is ejected, thereby forming a partial convex mirror 310 as shown in fig. 2.
In addition, in this embodiment, a rigid mesh plate 32 is further disposed on the rear side of the mirror surface 31, and the rigid mesh plate 32 forms a rigid support for the mirror surface 31 to suppress rearward deformation of the mirror surface 31, and enables a linear airflow to pass through the rigid mesh plate 32 and to impinge on the rear surface of the mirror surface 31.
When the above-mentioned reflective special-effect camera lens shoots a fish-eye special-effect video, it is only necessary to make the air flow of the air nozzle 4 spray on the back of the reflector 31 corresponding to the position where the special effect is to be formed on the video picture, so that the corresponding area on the reflector 31 is arched forward under the action of the air flow to form a local convex mirror 310, and due to the wide-angle characteristic of the local convex mirror 310, a local fish-eye effect can be formed; as the air flow freely moves on the reflecting mirror surface 31, the fisheye effect can be freely formed at any position of the video image.
In addition, the size of the nozzle of the air nozzle 4 is adjustable to adjust the deformation characteristic of the reflector 31, that is, when the nozzle is small, under the condition of the same air injection amount, the air flow is concentrated, so that the arching degree of the local convex mirror 310 is deep, the curvature is large, and the fisheye effect is concentrated and strong; when the nozzle is large, the range of the local convex mirror 310 is large, and the range of the fish eye effect is large and shallow; of course, if the jet opening is adjusted to be larger, the air injection amount is synchronously increased, so that the fish eye effect is large in range and strong.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

Claims (1)

1. A working method of a reflection type special effect camera lens comprises a host (1); a fixed lens (2) is arranged in front of the host (1); the method is characterized in that: a special effect lens (3) is arranged at the front end of the fixed lens (2), the special effect lens (3) comprises a reflecting mirror surface (31) forming an included angle of 45 degrees with the fixed lens (2), and external scenes enter the fixed lens (2) after being reflected by the reflecting mirror surface (31); the reflector surface (31) comprises two transparent elastic membranes which are parallel to each other, and a mercury interlayer is formed between the two elastic membranes; an air nozzle (4) is arranged behind the reflecting mirror surface (31), the air nozzle (4) is driven by a universal driving mechanism (41) to enable the air nozzle to spray linear air flow to any position on the back surface of the reflecting mirror surface (31), and the reflecting mirror surface (31) is arched forwards at the position sprayed by the air flow to form a local convex mirror (310);
the working method comprises the following steps: the air flow of the air nozzle (4) is sprayed on the back surface of the reflecting mirror surface (31) corresponding to the position where the special effect is required to be formed on the video picture, so that the corresponding area on the reflecting mirror surface (31) is arched forwards under the action of the air flow to form a local convex mirror (310), and then a local fish eye effect can be formed; as the air flow freely moves on the reflecting mirror surface (31), the fish eye effect can be freely formed at any position of the video picture.
CN201810965118.6A 2016-08-26 2016-08-26 Camera lens for shooting special-effect video and working method thereof Active CN108761747B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810965118.6A CN108761747B (en) 2016-08-26 2016-08-26 Camera lens for shooting special-effect video and working method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610730441.6A CN106094173B (en) 2016-08-26 2016-08-26 Reflection-type special efficacy pick-up lens
CN201810965118.6A CN108761747B (en) 2016-08-26 2016-08-26 Camera lens for shooting special-effect video and working method thereof

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201610730441.6A Division CN106094173B (en) 2016-08-26 2016-08-26 Reflection-type special efficacy pick-up lens

Publications (2)

Publication Number Publication Date
CN108761747A CN108761747A (en) 2018-11-06
CN108761747B true CN108761747B (en) 2022-10-14

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Family Applications (5)

Application Number Title Priority Date Filing Date
CN201811164023.0A Withdrawn CN109031858A (en) 2016-08-26 2016-08-26 Pick-up lens and its working method
CN201810965112.9A Withdrawn CN109031856A (en) 2016-08-26 2016-08-26 A kind of pick-up lens and its working method
CN201610730441.6A Active CN106094173B (en) 2016-08-26 2016-08-26 Reflection-type special efficacy pick-up lens
CN201810965119.0A Active CN109031618B (en) 2016-08-26 2016-08-26 Camera lens capable of reducing video special effect production in later period
CN201810965118.6A Active CN108761747B (en) 2016-08-26 2016-08-26 Camera lens for shooting special-effect video and working method thereof

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Application Number Title Priority Date Filing Date
CN201811164023.0A Withdrawn CN109031858A (en) 2016-08-26 2016-08-26 Pick-up lens and its working method
CN201810965112.9A Withdrawn CN109031856A (en) 2016-08-26 2016-08-26 A kind of pick-up lens and its working method
CN201610730441.6A Active CN106094173B (en) 2016-08-26 2016-08-26 Reflection-type special efficacy pick-up lens
CN201810965119.0A Active CN109031618B (en) 2016-08-26 2016-08-26 Camera lens capable of reducing video special effect production in later period

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Publication number Priority date Publication date Assignee Title
CN109324460B (en) * 2018-12-11 2021-06-08 朱秋虹 Special effect image pickup apparatus

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CN103076643A (en) * 2011-10-25 2013-05-01 洛阳师范学院 Liquid continuous zooming lens
CN103231166A (en) * 2012-09-12 2013-08-07 苏州领创激光科技有限公司 Pneumatic servo focusing mechanism
CN203217248U (en) * 2013-04-23 2013-09-25 合肥京东方光电科技有限公司 Exposure machine
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CN105739227A (en) * 2014-12-26 2016-07-06 柯尼卡美能达株式会社 Lens and projection image display apparatus

Also Published As

Publication number Publication date
CN108761747A (en) 2018-11-06
CN106094173A (en) 2016-11-09
CN109031856A (en) 2018-12-18
CN109031858A (en) 2018-12-18
CN109031618A (en) 2018-12-18
CN109031618B (en) 2021-11-23
CN106094173B (en) 2018-12-28

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Inventor after: Xu Mujie

Inventor after: Other inventors ask not to disclose names

Inventor before: Do not announce the inventor

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Effective date of registration: 20221212

Address after: No. 999, Jinan Road, Heze Development Zone, Shandong Province 274000

Patentee after: SHANDONG MINGDA ELECTRIC APPLIANCE CO.,LTD.

Address before: 213000 room 812, Tongjiang dragon Plaza, 18 Tongjiang South Road, Xinbei District, Changzhou, Jiangsu

Patentee before: CHANGZHOU AISHANGXUE EDUCATION TECHNOLOGY Co.,Ltd.