CN101546091A - Folding and unfolding light shield of optical camera - Google Patents
Folding and unfolding light shield of optical camera Download PDFInfo
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- CN101546091A CN101546091A CN200910022264A CN200910022264A CN101546091A CN 101546091 A CN101546091 A CN 101546091A CN 200910022264 A CN200910022264 A CN 200910022264A CN 200910022264 A CN200910022264 A CN 200910022264A CN 101546091 A CN101546091 A CN 101546091A
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- outer rim
- fixed
- brace
- light shield
- optical camera
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Abstract
The invention relates to a folding and unfolding light shield of an optical camera, which solves the technical problems of the prior light shied of an optical camera that the storage volume and the weight are increased caused by increasing the length of the light shield. The folding and unfolding light shield of an optical camera comprises a support bracket and a light shielding cloth, wherein the support bracket comprises a flange fixed in front of the camera lens, a plurality of joints and an outer frame which are fixed on the flange, and a plurality of connecting rods fixed with the joints and the outer frame at both end; the cross section of each connecting rod is a cambered thin-wall straight-strip member; and the light shielding is enwrapped at outer periphery of a polygon platform formed by the connecting rods and the outer frame. The invention has the advantages of small size, light weight, good rigidity, automatic unfolding and wide application range and can be used in cascade mode.
Description
Technical field
The present invention relates to a kind of optical camera light shield, relate in particular to a kind of collapsible and optical camera light shield of launching.
Background technology
In optical camera, in order to suppress the influence of parasitic light, need light shield be set at the front end of optical lens usually, this light shield is generally integrally-built cone.In order to reduce the influence of parasitic light as far as possible, need increase the length of light shield as far as possible, and long light shield can bring the problem that the optical camera storage volume increases, weight increases.
Summary of the invention
The purpose of this invention is to provide a kind of collapsible and optical camera light shield of launching, the technical matters that storage volume increases, weight increases that it has solved existing optical camera light shield and causes because increasing the length of light shield.
Technical solution of the present invention is:
A kind of collapsible and optical camera light shield of launching, comprise bracing frame and gobo, its special character is: support frame as described above comprises the flange that can be fixed on the camera lens front end, be fixed on a plurality of connecting links that a plurality of joints, outer rim and two ends on the flange are connected with joint and outer rim respectively, and described connecting link is that xsect is that the thin-walled of arc directly is with member; Described gobo is coated on many terrace with edges outer circumferential side of connecting link and outer rim formation.
Above-mentioned a plurality of connecting link comprises at least three rib bars and at least three braces, and an end of described rib bar is fixed on the joint, and its other end end is fixed in the corner of outer rim; One end of described brace is fixed on the joint, its other end be fixed in outer rim the straight flange place and with the angle of this straight flange be acute angle.
Above-mentioned outer rim is a rectangle frame, and the quantity of described rib bar and brace is four.
Above-mentioned outer rim is the octagon frame, and the quantity of described rib bar and brace is eight.
Above-mentioned bracing frame comprises the middle boxes that be arranged in parallel with outer rim, and the shape and the outer rim of described middle boxes are similar, and the middle part of described middle boxes and a plurality of connecting links is connected.
Above-mentioned brace comprises long diagonal brace and short brace, and described long diagonal brace is fixed between joint and the outer rim, and described short brace is fixed between middle boxes and the outer rim.
Above-mentioned outer rim is rectangle frame or octagon frame, and described rib bar, long diagonal brace and the quantity of short brace should be four or eight mutually.
Technique effect of the present invention is:
1, volume is little.Can bending fold, and it is launched voluntarily by the elastic force that its bending produced, it is also folding thereupon simultaneously or stretch to be fixed on gobo on outer rim, connecting link and the joint.Therefore when depositing optical camera, compressible greatly to reduce the storage volume of optical camera.
2, in light weight.Because the skeleton of light shield only is made of outer rim, connecting link, joint and flange, and the rib bar that constitutes and brace only be directly band shape of thin-walled, reduced weight; And then come shading by gobo, more played the effect of weight reduction.
3, good rigidly.The lighter weight and the use of brace make total have rigidity preferably.
4, can launch voluntarily.The self-characteristic of connecting link makes light shield can utilize its recovery of elasticity distortion to launch voluntarily in use, need not other development mechanism is set, and is simple and easy to do.
5, applied range.Light shield has characteristics collapsible and that can launch voluntarily, is widely used in all kinds of optical cameras.
But 6 cascades are used.By middle boxes, can construct the structure of plural serial stage, increase the length of the optical camera light shield of collapsible and expansion, and keep rigidity preferably, and gobo is coated on the bracing frame better.
Description of drawings
Fig. 1 cuts open first kind of structural representation behind 1/4th gobos for the present invention.
Fig. 2 connecting link structural representation of the present invention.
Fig. 3 cuts open second kind of structural representation behind 1/2nd gobos for the present invention.
Fig. 4 cuts open the third structural representation behind 1/4th gobos for the present invention.
Fig. 5 cuts open the 4th kind of structural representation behind 1/4th gobos for the present invention.
Reference numeral is as follows: 1-outer rim, 2-connecting link, 21-rib bar, 22-brace, 4-joint, 5-flange, 6-gobo, 7-middle boxes, 8-long diagonal brace, the short brace of 9-, 10-underframe.
Embodiment
The present invention is a kind of collapsible and optical camera light shield of launching, include bracing frame and gobo 6, wherein bracing frame comprises the flange 5 that is fixed on the camera lens front end, is fixed on a plurality of connecting links 2 that a plurality of joints 4, outer rim 1 and two ends on the flange are connected with joint 4 and outer rim 1 respectively, and connecting link 2 is that the thin-walled of arc directly is with member for xsect; Gobo 6 is coated on the terrace with edge outer circumferential side of connecting link 2 and outer rim 1 formation.
With reference to Fig. 1, joint 4 is screwed on flange 5, with screw rib bar 21 1 ends is fixed on the interstitial hole of joint 4, and the other end is fixed on the turning of outer rim 1; With screw brace 22 1 ends be fixed on 4 joints two lateral opening on, the other end is fixed on the right-angle side of adjacent outer rim 1.Gobo 6 is fixed on outer rim 1 and the joint 4, is coated on the outside of outer rim 1, rib bar 21 and brace 22.
With reference to Fig. 2, connecting link 2 is a kind of individual layer opening column face-piece members, and it is directly banded that profile is rendered as the thin-walled with arc-shaped cross-section, specifically can adopt banded spring (to have another name called the tape measure spring, English name: tape spring).
Fig. 3 is an another kind of basic structure synoptic diagram of the present invention, with screw brace 22 1 ends be fixed on joint 4 two lateral opening on, the other end is fixed on the corner of adjacent outer rim 1.Wherein gobo 6 half cuts open among Fig. 3.
Enforcement for long light shield can be provided with middle boxes in the centre, and increases the quantity of brace.
With reference to Fig. 4, if the centre of light shield 6 has increased middle boxes 7, connecting link 2 is divided at least three rib bars 21, three long diagonal braces 8 and three short braces 9.Joint 4 is screwed on flange 5.With screw long diagonal brace 8 one ends be fixed on joint 4 two lateral opening on, the other end is fixed on the right-angle side of adjacent outer rim 1, preferably be fixed on 1/3rd places of the right-angle side of adjacent outer rim 1, and the mid point of long diagonal brace 8 is fixed on the midpoint of the right-angle side of middle boxes 7.Lack the corner that brace 9 one ends are fixed on middle boxes 7 with the screw handle, the other end is fixed on the right-angle side of adjacent outer rim 1, preferably is fixed on 1/3rd places of the right-angle side of adjacent outer rim 1.Gobo 6 is fixed on outer rim 1, middle boxes 7 and the joint 4, is coated on the outside of rib bar 21, long diagonal brace 8 and short brace 9.
For the enforcement of coniform or light shield cylindraceous, can increase the limit number of outer rim, make the light shield cross section near circular.
Fig. 5 is an another kind of basic structure synoptic diagram of the present invention.Outer rim 1 and underframe 10 are regular polygon.With screw rib bar 21 1 ends are fixed on the turning of underframe 10, the other end is fixed on the turning of outer rim 1.Being fixed on brace 22 1 ends on the underframe 10 near the incline place with screw is near underframe 10 turnings, and the other end is fixed on the diagonal angle of adjacent outer rim 1 near the incline place.Gobo 6 is fixed on outer rim 1 and the underframe 10, and is coated on the outside of rib bar 21 and brace 22.
The principle of work and the course of work of the collapsible and optical camera light shield that launches of the present invention: the present invention since passive connecting link (comprising rib bar and brace) constitute by banded spring, so rib bar and brace can also can launch by bending fold voluntarily, the gobo that is fixed on frame, joint and the connecting link also can fold thereupon or stretch, and can be widely used in all kinds of optical cameras.Before transportation and using, earlier connecting link and gobo are folded, and be fixed in the camera lens front end, conveniently transport and reduce volume.During use, adopt mode artificial or that adopt machinery control to separate that the stationary installation of connecting link is removed, then gobo stretches under the resilient force of connecting link, realizes shaded effect.
Claims (7)
1, a kind of collapsible and optical camera light shield of launching, comprise bracing frame and gobo (6), it is characterized in that: support frame as described above comprises the flange (5) that can be fixed on the camera lens front end, be fixed on a plurality of connecting links (2) that a plurality of joints (4), outer rim (1) and two ends on the flange are connected with joint (4) and outer rim (1) respectively, and described connecting link (2) is that the thin-walled of arc directly is with member for xsect; Described gobo (6) is coated on many terrace with edges outer circumferential side of connecting link (2) and outer rim (1) formation.
2, the collapsible and optical camera light shield that launches according to claim 1, it is characterized in that: described a plurality of connecting links (2) comprise at least three rib bars (21) and at least three braces (22), one end of described rib bar (21) is fixed on the joint (4), and its other end end is fixed in the corner of outer rim (1); One end of described brace (22) is fixed on the joint (4), its other end be fixed in outer rim (1) the straight flange place and with the angle of this straight flange be acute angle.
3, the collapsible and optical camera light shield that launches according to claim 2, it is characterized in that: described outer rim (1) is rectangle frame, and the quantity of described rib bar (21) and brace (22) is four.
4, the collapsible and optical camera light shield that launches according to claim 2, it is characterized in that: described outer rim (1) is the octagon frame, and the quantity of described rib bar (21) and brace (22) is eight.
5, according to claim 1 or 2 or 3 or the 4 described collapsible and optical camera light shields that launch, it is characterized in that: support frame as described above comprises the middle boxes (7) that be arranged in parallel with outer rim (1), the shape of described middle boxes and outer rim (1) are similar, and described middle boxes (7) is connected with the middle part of a plurality of connecting links (2).
6, the collapsible and optical camera light shield that launches according to claim 5, it is characterized in that: described brace (22) comprises long diagonal brace (8) and short brace (9), described long diagonal brace (8) is fixed between joint (4) and the outer rim (1), and described short brace (9) is fixed between middle boxes (7) and the outer rim (1).
7, the collapsible and optical camera light shield that launches according to claim 6, it is characterized in that: described outer rim (1) is rectangle frame or octagon frame, described rib bar (21), long diagonal brace (8) and the quantity of lacking brace (9) should be four or eight mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100222646A CN101546091B (en) | 2009-04-29 | 2009-04-29 | Folding and unfolding light shield of optical camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100222646A CN101546091B (en) | 2009-04-29 | 2009-04-29 | Folding and unfolding light shield of optical camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101546091A true CN101546091A (en) | 2009-09-30 |
| CN101546091B CN101546091B (en) | 2011-04-27 |
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ID=41193296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100222646A Expired - Fee Related CN101546091B (en) | 2009-04-29 | 2009-04-29 | Folding and unfolding light shield of optical camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101546091B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606142A (en) * | 2015-12-16 | 2016-05-25 | 中国科学院长春光学精密机械与物理研究所 | Large-sized keel type non-intrusive lens hood |
| CN105759537A (en) * | 2016-04-12 | 2016-07-13 | 华中科技大学 | Extendable light shield |
| CN107238993A (en) * | 2017-07-13 | 2017-10-10 | 西安电子科技大学 | A kind of deployable large-scale inflating thin film shading cover structure in space |
| CN108961168A (en) * | 2018-07-27 | 2018-12-07 | 奔腾激光(温州)有限公司 | Laser processing field graph display method |
| CN113515002A (en) * | 2021-04-23 | 2021-10-19 | 上海卫星工程研究所 | External heat flow restrained satellite-borne shading system |
| CN113848621A (en) * | 2021-09-28 | 2021-12-28 | 浙江大学 | Leaf spring driven multi-block light ring film expansion type lens hood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201397439Y (en) * | 2009-04-29 | 2010-02-03 | 中国科学院西安光学精密机械研究所 | Foldable and unfoldable optical camera hood |
-
2009
- 2009-04-29 CN CN2009100222646A patent/CN101546091B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606142A (en) * | 2015-12-16 | 2016-05-25 | 中国科学院长春光学精密机械与物理研究所 | Large-sized keel type non-intrusive lens hood |
| CN105759537A (en) * | 2016-04-12 | 2016-07-13 | 华中科技大学 | Extendable light shield |
| CN105759537B (en) * | 2016-04-12 | 2018-02-27 | 华中科技大学 | A kind of expandable type light shield |
| CN107238993A (en) * | 2017-07-13 | 2017-10-10 | 西安电子科技大学 | A kind of deployable large-scale inflating thin film shading cover structure in space |
| CN107238993B (en) * | 2017-07-13 | 2019-07-16 | 西安电子科技大学 | A kind of deployable large-scale inflating thin film shading cover structure in space |
| CN108961168A (en) * | 2018-07-27 | 2018-12-07 | 奔腾激光(温州)有限公司 | Laser processing field graph display method |
| CN113515002A (en) * | 2021-04-23 | 2021-10-19 | 上海卫星工程研究所 | External heat flow restrained satellite-borne shading system |
| CN113515002B (en) * | 2021-04-23 | 2022-12-27 | 上海卫星工程研究所 | External heat flow restrained satellite-borne shading system |
| CN113848621A (en) * | 2021-09-28 | 2021-12-28 | 浙江大学 | Leaf spring driven multi-block light ring film expansion type lens hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101546091B (en) | 2011-04-27 |
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