KR100255231B1 - Apparatus for opening and closing lens cover of video camera - Google Patents
Apparatus for opening and closing lens cover of video camera Download PDFInfo
- Publication number
- KR100255231B1 KR100255231B1 KR1019960020091A KR19960020091A KR100255231B1 KR 100255231 B1 KR100255231 B1 KR 100255231B1 KR 1019960020091 A KR1019960020091 A KR 1019960020091A KR 19960020091 A KR19960020091 A KR 19960020091A KR 100255231 B1 KR100255231 B1 KR 100255231B1
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- South Korea
- Prior art keywords
- lens cover
- lens
- video camera
- opening
- cover
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
- G03B11/043—Protective lens closures or lens caps built into cameras
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Blocking Light For Cameras (AREA)
- Studio Devices (AREA)
Abstract
본 발명은 비디오카메라장치에 관한 것으로서, 특히 렌즈를 렌드덮개로 개폐하는 비디오카메라 렌즈덮개개폐장치에 관한 것이다. 본 발명에 따른 비디오카메라 렌즈덮개개폐장치는 비디오 촬영을 위한 카메라모드에서만 렌즈덮개가 렌즈로부터 이탈되므로 렌즈를 손상으로부터 보다 안전하게 보호할수 있다. 또한, 렌즈를 렌즈덮개로 매번 덮을 필요가 없게 되므로 렌즈덮개의 여닫힘이 간편해지는 효과가 있게 된다.The present invention relates to a video camera apparatus, and more particularly to a video camera lens cover opening / closing apparatus for opening and closing a lens with a lid cover. The video camera lens cover opening / closing apparatus according to the present invention can protect the lens from damage only because the lens cover is detached from the lens only in the camera mode for video shooting. Further, since there is no need to cover the lens with the lens cover every time, there is an effect that the opening and closing of the lens cover is simplified.
Description
제1(a)도는 본 발명에 따른 비디오카메라를 보여주는 정면도.1 (a) and 1 (b) are front views showing a video camera according to the present invention.
제1(b)도는 본 발명에 따른 비디오카메라의 렌즈덮개와 그 구동장치를 보여주는 내부구성도이다.FIG. 1 (b) is an internal view showing a lens cover and a driving device of a video camera according to the present invention.
제2도는 본 발명에 따른 비디오카메라 렌즈덮개개폐장치가 구동되는 과정을 보여주는 흐름도이다.FIG. 2 is a flowchart illustrating a process of driving a video camera lens cover opening / closing device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS
10 : 캐비닛 12 : 손잡이10: cabinet 12: handle
14 : 접안렌즈 18 : 렌즈장치14: Eyepiece 18: Lens device
20 : 렌즈덮개 21 : 돌출편20: Lens cover 21:
22 : 복원장치 23 : 힌지22: restoration device 23: hinge
24 : 덮개개폐기 25 : 가동철심24: cover switch 25: movable iron core
26 : 솔레노이드 100 : 기능키 입력26: Solenoid 100: Function key input
102 : 카메로모드 판별 104 : 솔레노이드구동102: Camera mode discrimination 104: Solenoid drive
본 발명은 비디오카메라장치에 관한 것으로서, 특히 렌즈를 렌즈덮개 개폐(開閉)하는 비디오카메라 렌즈덮개개폐장치에 관한 것이다.The present invention relates to a video camera apparatus, and more particularly to a video camera lens cover opening / closing apparatus for opening and closing a lens cover.
일반적으로, 비디오카메라 렌즈덮개개폐장치는 비디오카메라 외부에서 인가되는 빛을 내부로 통과시키는 렌즈를 보호하는 역할을 하게 되므로 렌즈보호에 중요한 부분을 차지하게 된다.2. Description of the Related Art In general, a video camera lens cover opening / closing device plays an important role in protecting a lens because it protects a lens that passes light applied from the outside of a video camera to the inside.
종래의 비디오카메라는 구동목적에 따라 세가지의 각기 다른 모드(mode)를 취할수 있게 되어 있다. 그 모드로는 카메라모드, 비디오모드 및 전원차단모드로 구성된다. 비디오카메라는 비디오카메라가 촬영할수 있는 기능을 갖게 조정되는 모드이고, 비디오모드는 비디오카메라가 카메라모드에서 촬영한 영상기록을 재생할수 있게 조정되는 모드이다. 그리고 전원차단모드는 비디오카메라에 전원의 인가가 차단되도록 조정되는 모드이다. 이와같은 모드들 가운데 실제적으로 렌즈가 사용되는 모드는 카메라모드뿐이다. 그러나, 종래의 비디오카메라 렌즈덮개는 카메라모드에서 뿐만아니라 비디오모드, 전원차단모드에서도 렌즈덮개가 열려있게 되므로 항상 렌즈손상의 우려가 있게되는 문제점이 있었다.Conventional video cameras are able to take three different modes depending on the driving purpose. The modes include a camera mode, a video mode, and a power-off mode. The video camera is a mode in which the video camera is adjusted to have a function capable of shooting, and the video mode is a mode in which the video camera is adjusted so as to be able to reproduce the video image recorded in the camera mode. The power off mode is a mode in which the power supply to the video camera is interrupted. Among these modes, only the camera mode is the mode in which the lens is actually used. However, in the conventional video camera lens cover, since the lens cover is opened not only in the camera mode but also in the video mode and the power cut-off mode, there is a problem that the lens is always damaged.
따라서, 본 발명의 목적은 렌즈의 손상을 줄이기 위해 실제로 렌즈가 사용되는 상기 카메라모드에서만, 인가되는 전류에 의해 발생되는 소정의 전자기적 인력(引力)으로써 상기 렌즈덮개를 일측으로 젖혀 렌즈의 전면을 개방하는 비디오카메라 렌즈덮개개폐장치를 제공하는 데 있다. 이러한 본 발명의 렌즈덮개개폐장치는 촬영모드인 카메라모드에서만 인가된 전원에 의해 발생되는 소정의 전자기력으로써 상기 렌즈덮개를 일측으로 젖혀 렌즈를 개방하는 덮개개폐기를 포함하는, 렌즈덮개가 구비된 비디오카메라의 렌즈덮개개폐장치이다.Therefore, it is an object of the present invention to provide an image pickup apparatus capable of reducing the damage of a lens, in which only the camera mode in which a lens is actually used, the lens cover is turned to one side by a predetermined electromagnetic attraction force And to provide a video camera lens cover opening / closing device which is opened. The lens cover opening / closing apparatus of the present invention includes a cover switch which opens the lens by bending the lens cover to one side with a predetermined electromagnetic force generated by a power source applied only in a camera mode which is a photographing mode, Of the lens cover opening / closing device.
이하에서 본 발명의 바람직한 실시예를 보여준다.Hereinafter, preferred embodiments of the present invention will be described.
제1(a)도는 본 발명에 따른 비디오카메라를 보여주는 정면도이고, 제1(b)도는 그 비디오카메라의 렌즈덮개와 그 구동장치를 보여주는 내부구성도이다. 제1(a)도에서 보는 바와같이, 비디오카메라는 몸체를 구성하고 있는 캐비닛(10)을 갖고 있다. 이 캐비닛(10)의 일단부에는 손잡이(12)가 제작되어 있으며, 사용자가 이 손잡이(12)를 이용하여 비디오카메라를 손쉽게 조작할수 있게된다. 또한, 캐비닛(10)의 타단부에는 접안렌즈(14)가 제작되어 있으며, 사용자의 눈이 비디오 촬영시 접하게 되는 부분이다. 이 접안렌즈(14)를 통하여 비디오 카메라에 인가되는 사물의 상(像)을 볼수 있게 되는 것이다. 또한, 캐비닛(10)의 전방면에는 렌즈장치(18)가 제작되어 있다. 이 렌즈장치(18)는 비디오 촬영시 빛이 비디오카메라 내부로 인가되는 통로역할을 하게 된다. 이 렌즈장치(18)의 렌즈에 렌즈덮개가 여닫히게 되는 것이다. 그 렌즈덮개개폐장치는 제1(b)도를 보면 알수 있다. 점선으로 표시된 부분은 렌즈장치(18)를 보여주고 있으며, 이 렌즈장치(18)의 렌즈를 개폐하는 역할을 하는 것이 렌즈덮개(20)이다. 렌즈덮개(20)는 돌출편(突出片)(21)을 갖고 있으며, 이 돌출편(21)의 끝단부와 캐비닛(10)면이 힌지결합되어 있다. 그리하여, 힌지(hinge)(23)을 중심으로 이동될수 있다. 복원장치(22)는 렌즈덮개(20)에 일정한 복원력을 제공하기 위하는 것으로서 본 실시예에서는 코일스프링이 적용되었으며, 이하에서 상기 복원장치(22)는 스프링으로 개념대체하여 설명한다. 스프링(22)은 일끝단이 캐비닛(10)내부면에 고정되어 있고, 타끝단이 렌즈덮개(20)의 일단면과 연결되어 있다. 이 스프링(22)이 작용하여 렌즈덮개(20)가 렌즈를 덮게 만든다. 또한, 렌즈덮개(20)의 돌출편(21)은 덮개개폐기(24)와 연결되어 있다. 이 덮개개폐기(24)는, 상기 렌즈덮개 돌출편(21)의 일측에 그 일측 단부가 연결된 가동철심(25)과, 이 가동철심(25)의 타측 단부를 중공 내에 활동가능하게 수용된 솔레노이드(26)로써 구현된다. 이 솔레노이드(26)]는 원통형 관의 외주면을 따라 코일이 여러 번 감겨져 형성된다. 상기 한 바와 같이 비디오카메라의 카메라모드에서 전원이 솔레노이드(26)에 인가되면 솔레노이드(26)의 중공내에서 전자기력이 생성되고, 이 전자기력은 상기 가동철심(25)을 솔레노이드(26) 방향으로 잡아당기는 인력 또는 인장력으로 작용하게 된다. 이 가동철심(25)은 렌즈덮개(20)의 돌출부(21)와 접선연결되어 있으므로 렌즈덮개(20)를 솔레노이드(26)측으로 당겨서 렌즈로부터 이탈시킬 수 있게 된다. 이 때, 덮개개폐기(24)가 렌즈덮개(20)에 가하는 인장력은 스프링(22)이 제공하는 복원력보다는 커야 한다. 그래야만 렌즈덮개(20)을 렌즈장치(18)로부터 이탈시킬 수 있는 것이다.FIG. 1 (a) is a front view showing a video camera according to the present invention, and FIG. 1 (b) is an internal view showing a lens cover and a driving device of the video camera. As shown in FIG. 1 (a), the video camera has a cabinet 10 constituting a body. A handle 12 is formed at one end of the cabinet 10 so that the user can easily operate the video camera using the handle 12. The eyepiece 14 is manufactured at the other end of the cabinet 10, and the eye of the user is a portion to be brought into contact with at the time of video shooting. So that an image of an object to be applied to the video camera can be seen through the eyepiece 14. Further, a lens unit 18 is manufactured on the front surface of the cabinet 10. The lens device 18 serves as a passage through which light is applied to the inside of the video camera during video shooting. The lens cover of the lens device 18 is closed. The lens cover opening / closing device can be seen from the view of FIG. 1 (b). The portion indicated by a dotted line shows the lens device 18 and the lens cover 20 serves to open and close the lens of the lens device 18. [ The lens cover 20 has a projecting piece 21 and the end of the projecting piece 21 is hinged to the cabinet 10 side. Thus, it can be moved about the hinge 23. The restoring device 22 is provided to provide a certain restoring force to the lens cover 20. In this embodiment, a coil spring is applied. In the following, the restoring device 22 is replaced with a concept of a spring. One end of the spring 22 is fixed to the inner surface of the cabinet 10 and the other end of the spring 22 is connected to one end surface of the lens cover 20. This spring 22 acts to cover the lens cover 20 with the lens. Further, the projecting piece 21 of the lens cover 20 is connected to the cover switch 24. The cover switch 24 includes a movable iron core 25 having one end connected to one side of the lens cover protruding piece 21 and a solenoid 26 ). This solenoid 26 is formed by winding the coil several times along the outer peripheral surface of the cylindrical tube. When a power source is applied to the solenoid 26 in the camera mode of the video camera as described above, an electromagnetic force is generated in the hollow of the solenoid 26. This electromagnetic force is generated by pulling the movable core 25 in the direction of the solenoid 26 It acts as an attractive force or a tensile force. Since the movable iron core 25 is tangentially connected to the protruding portion 21 of the lens cover 20, the lens cover 20 can be pulled toward the solenoid 26 to be detached from the lens. At this time, the tensile force applied to the lens cover 20 by the cover switch 24 must be greater than the restoring force provided by the spring 22. So that the lens cover 20 can be separated from the lens unit 18 only by that.
한편, 상기 덮개개폐기(24)는 상기 솔레노이드(26)가 아니더라도 위와 같은 전자기력을 생성할 수 있는 다른 전자기장치로서도 구현가능하다.Meanwhile, the cover switch 24 may be implemented as another electromagnetic device capable of generating the above-described electromagnetic force even if the solenoid 26 is not provided.
이하에서도 흐름도를 이용하여 이 렌즈덮개개폐장치의 작동과정을 상세히 설명한다.Hereinafter, the operation of the lens cover opening / closing apparatus will be described in detail using the flowchart.
제2도는 본 발명에 따른 비디오카메라 렌즈덮개개폐장치가 작동되는 순서를 보여주는 흐름도이다. 비디오카메라는 기능에 따라 여러 다른 모드로 나뉘는데, 사용자가 그 기능에 맞게 원하는 기능키를 입력하게 된다(단계100). 이 기능키에 따라 모드가 구동되어 지며 그 모드가 카메라모드인지를 판별되게 된다(단계102). 이렇게 판별되어 카메라모드일 경우에만 솔레노이드가 구동된다(단계104). 이와같은 방법으로 비디오카메라 렌즈덮개개폐장치는 카메라모드에서만 렌즈덮개가 렌즈로부터 이탈되도록 한다.FIG. 2 is a flow chart showing the sequence in which the video camera lens cover opening and closing device according to the present invention is operated. The video camera is divided into different modes according to functions, and the user inputs a desired function key according to the function (step 100). The mode is driven according to the function key, and it is determined whether the mode is the camera mode (step 102). The solenoid is driven only when it is discriminated as the camera mode (step 104). In this manner, the video camera lens cover opening / closing device allows the lens cover to be detached from the lens only in the camera mode.
따라서, 본 발명에 따른 비디오카메라 렌즈덮개개폐장치는 비디오 촬영을 위한 카메라모드에서만 렌즈덮개가 렌즈로부터 이탈되도록 렌즈를 손상으로부터 보다 안전하게 보호할수 있다. 또한, 렌즈를 렌즈덮개로 매번 덮을 필요가 없게 되므로 카메라 사용이 보다 간편해지는 효과가 있게 된다.Therefore, the video camera lens cover opening / closing apparatus according to the present invention can more safely protect the lens from damage so that the lens cover is detached from the lens only in the camera mode for video shooting. Further, since it is not necessary to cover the lens with the lens cover every time, the use of the camera becomes easier.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960020091A KR100255231B1 (en) | 1996-06-05 | 1996-06-05 | Apparatus for opening and closing lens cover of video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960020091A KR100255231B1 (en) | 1996-06-05 | 1996-06-05 | Apparatus for opening and closing lens cover of video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR980007503A KR980007503A (en) | 1998-03-30 |
| KR100255231B1 true KR100255231B1 (en) | 2000-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960020091A KR100255231B1 (en) | 1996-06-05 | 1996-06-05 | Apparatus for opening and closing lens cover of video camera |
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| KR (1) | KR100255231B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100396679B1 (en) * | 2001-01-06 | 2003-09-03 | 엘지전자 주식회사 | LCD Projector and of the same screen change method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698216A (en) * | 1992-09-16 | 1994-04-08 | Sony Corp | Open/close mechanism for camera lens cover |
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1996
- 1996-06-05 KR KR1019960020091A patent/KR100255231B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698216A (en) * | 1992-09-16 | 1994-04-08 | Sony Corp | Open/close mechanism for camera lens cover |
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| KR980007503A (en) | 1998-03-30 |
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