KR0182441B1 - Secession preventing apparatus of focusing lens - Google Patents
Secession preventing apparatus of focusing lens Download PDFInfo
- Publication number
- KR0182441B1 KR0182441B1 KR1019950054429A KR19950054429A KR0182441B1 KR 0182441 B1 KR0182441 B1 KR 0182441B1 KR 1019950054429 A KR1019950054429 A KR 1019950054429A KR 19950054429 A KR19950054429 A KR 19950054429A KR 0182441 B1 KR0182441 B1 KR 0182441B1
- Authority
- KR
- South Korea
- Prior art keywords
- focusing lens
- screw
- lens
- screw portion
- screwed
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
본 발명은 투사렌즈에 나사결합되어 있는 포커싱 렌즈가 투사렌즈에 형성되어 있는 나사부로 부터 이탈되는 것을 방지할 수 있는 포커싱 렌즈의 이탈방지장치가 제공하기 위하여 투사렌즈(20)에 형성되어 있는 나사부(22)에 나사결합되는 포커싱 렌즈(24)가 상기 나사부(22)로 부터 이탈되는 것을 방지할 수 있는 포커싱 렌즈의 이탈방지장치에 있어서, 상기 나사부(22)의 뿌리부분에 형성되어 있는 불완전나사부(22a)에 삽입되어 상기 나사부(22)에 이르면 걸리는 이탈방지 링(30)을 상기 포커싱 렌즈(24)의 선단부에 결합하여 구성한 것이다.The present invention provides a screw portion formed in the projection lens 20 to provide a focusing lens separation prevention device capable of preventing the focusing lens screwed to the projection lens is separated from the screw portion formed in the projection lens ( In the focusing lens departure preventing device that can prevent the focusing lens 24 is screwed to the screw 22 to be separated from the screw 22, an incomplete screw portion formed in the root portion of the screw 22 ( 22a) is coupled to the distal end of the focusing lens 24 is coupled to the separation preventing ring 30 is inserted when the screw 22 is reached.
Description
제1도는 종래 포커싱 렌즈의 구조를 보이는 분해사시도.1 is an exploded perspective view showing the structure of a conventional focusing lens.
제2도는 본 발명에 따른 포커싱 렌즈 이탈방지장치의 구성을 보이는 분해사시도.Figure 2 is an exploded perspective view showing the configuration of the focusing lens departure prevention apparatus according to the present invention.
제3도는 본 발명에 따른 포커싱 렌즈 이탈방지장치의 구성을 보이는 결합상태 단면도이다.3 is a cross-sectional view of the coupling state showing the configuration of the focusing lens departure prevention apparatus according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
20 : 투사렌즈 22 : 나사부20: projection lens 22: screw portion
22a : 불완전나사부 24 : 포커싱 렌즈22a: incomplete thread part 24: focusing lens
30 : 이탈방지 링30: release prevention ring
본 발명은 포커싱 렌즈의 이탈방지장치에 관한 것으로, 특히 포커싱 렌즈가 나사결합되는 투사렌즈의 나사부에 형성되어 있는 불완전나사부에서만 이동이 가능한 이탈방지 링을 포커싱 렌즈의 선단부에 설치하여 포커싱 렌즈가 나사부의 말단부에서 이탈되는 것을 방지하도록 한 포커싱 렌즈의 이탈방지장치에 관한 것이다.The present invention relates to a detachment prevention device of a focusing lens, and in particular, a detachment ring which is movable only on an incomplete screw part formed on a screw part of a projection lens to which a focusing lens is screwed is installed at the distal end of the focusing lens so that the focusing lens is provided with An apparatus for preventing the detachment of a focusing lens to prevent the detachment from the distal end portion.
종래 포커싱 렌즈는 첨부도면 제1도에 도시된 바와 같이 투사렌즈(10)에 형성되어 있는 나사부(12)에 나사결합되어 있다.The conventional focusing lens is screwed to the threaded portion 12 formed in the projection lens 10 as shown in FIG. 1 of the accompanying drawings.
따라서 포커싱 렌즈(14)를 무리하게 돌릴 경우에는 나사부(12)로 부터 빠지면서 바닥으로 낙하하여 파손되는 폐단을 가지고 있었다.Therefore, when the focusing lens 14 is forcibly turned, it has a closed end that falls from the screw part 12 and falls to the floor.
본 발명은 상기한 바와 같은 제반 문제점들을 해소하고자 안출한 것으로 투사렌즈에 나사결합되어 있는 포커싱 렌즈가 투사렌즈에 형성되어 있는 나사부로 부터 이탈되는 것을 방지할 수 있는 포커싱 렌즈의 이탈방지장치를 제공하려는데 그 목적이 있는 것이다.The present invention has been made to solve the above problems to provide a focusing lens separation prevention device that can prevent the focusing lens screwed to the projection lens from being detached from the screw formed on the projection lens. The purpose is.
이러한 본 발명의 목적을 달성하기 위하여 투사렌즈에 형성되어 있는 나사부에 나사결합되는 포커싱 렌즈가 상기 나사부로 부터 이탈되는 것을 방지할 수 있는 포커싱 렌즈의 이탈방지장치에 있어서, 상기 나사부의 뿌리부분에 형성되어 있는 불완전나사부에 삽입되어 상기 나사부에 이르면 걸리는 이탈방지 링을 상기 포커싱 렌즈의 선단부에 결합하여 포커싱 렌즈의 이탈방지장치가 제공된다.In order to achieve the object of the present invention, the focusing lens screwed to the screw portion formed in the projection lens to prevent the detachment of the focusing lens that can be prevented from being separated from the screw portion, formed in the root portion of the screw portion The release preventing device of the focusing lens is provided by coupling the release preventing ring, which is inserted into the incomplete screw part and reaches the screw part, to the distal end of the focusing lens.
이하 본 발명에 따른 포커싱 렌즈의 이탈방지장치의 실시예를 첨부도면을 참조하여 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of a detachment preventing apparatus of a focusing lens according to the present invention will be described in detail with reference to the accompanying drawings.
제2도 및 제3도는 본 발명에 따른 포커싱 렌즈의 이탈방지장치의 실시예를 도시하는 것으로서, 이에 도시한 바와 같이 투사렌즈(20)에 형성되어 있는 나사부(22)에 나사결합되는 포커싱 렌즈(24)가 상기 나사부(22)로 부터 이탈되는 것을 방지할 수 있는 포커싱 렌즈의 이탈방지장치에 있어서, 상기 나사부(22)의 뿌리부분에 형성되어 있는 불완전나사부(22a)에 삽입되어 상기 나사부(22)에 이르면 걸리는 이탈방지 링(30)을 상기 포커싱 렌즈(24)의 선단부에 결합하여 구성하였다.2 and 3 show an embodiment of the separation prevention device of the focusing lens according to the present invention, as shown in the focusing lens screwed to the screw 22 formed in the projection lens 20 ( In the anti-separation device of the focusing lens which can prevent the 24 from being separated from the screw portion 22, the screw portion 22 is inserted into the incomplete screw portion 22a formed in the root portion of the screw portion 22. ) Is coupled to the distal end of the focusing lens 24 to the separation preventing ring 30 is applied.
상기 이탈방지 링(30)은 중앙에 상기 불완전나사부(22a)에 접촉되는 원형구멍(30a)이 형성되어 있으며, 그 원형구멍(30a)의 둘레에는 상기 포커싱 렌즈(24)의 선단면상에 방사모양으로 여러개 배열되어 있는 회전방지용 핀(24b)이 끼워지는 여러개의 회전방지 구멍(30b)이 형성되어 있다.The release preventing ring 30 has a circular hole 30a formed at the center thereof in contact with the incomplete screw portion 22a, and has a radial shape on the distal end surface of the focusing lens 24 around the circular hole 30a. A plurality of rotation preventing holes 30b into which the rotation preventing pins 24b are arranged are formed.
이상에서와 같은 본 발명의 실시예에 따른 작용효과를 첨부도면을 참조하여 상세히 설명한다.With reference to the accompanying drawings, the operation and effect according to the embodiment of the present invention as described above will be described in detail.
첨부도면 제2도 및 제3도에 도시된 바와 같이 포커싱 렌즈(24)를 나사부(22)로 부터 빠져나오는 방향으로 돌리게 되면, 포커싱 렌즈(24)가 축방향으로 이동되는 동시에 이탈방지 링(30) 또한, 불완전나사부(22a)에서 이탈방지 링(30)이 직선운동과 회전운동이 복합된 나선운동을 하게 된다.As shown in FIGS. 2 and 3 of the accompanying drawings, when the focusing lens 24 is turned in the direction exiting the threaded portion 22, the focusing lens 24 is moved in the axial direction and the release preventing ring 30 In addition, the release prevention ring 30 in the incomplete screw portion (22a) is a spiral motion combined with a linear motion and a rotational motion.
상기와 같은 상태에서 사용자가 포커싱 렌즈(24)를 무리하게 돌려 이탈방지 링(30)이 불완전나사부(22a)와 나사부(22)의 경계선에 이르게 되면, 이탈방지 링(30)은 더 이상 진행하지 않으므로 직선운동을 하던 포커싱 렌즈(24)는 이탈방지 링(30)에 의해 직선방향으로 진행하지 못하게 된다.When the user forcibly rotates the focusing lens 24 in the above state and the release preventing ring 30 reaches the boundary between the incomplete screw portion 22a and the screw portion 22, the release preventing ring 30 does not proceed any further. Therefore, the focusing lens 24, which has been in a linear motion, may not proceed in a straight direction by the release preventing ring 30.
이상에서와 같은 본 발명은 포커싱 렌즈를 무리하게 돌리더라도 이탈방지 링에 의해 포커싱 렌즈가 이탈되는 것을 방지할 수 있으므로 기존과 같이 포커싱 렌즈가 투사렌즈로 부터 완전히 분리되면서 파손되는 것을 방지할 수 있는 효과가 있다.As described above, the present invention can prevent the focusing lens from being separated by the release preventing ring even if the focusing lens is forcibly turned, thereby preventing the focusing lens from being broken while being completely separated from the projection lens. There is.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950054429A KR0182441B1 (en) | 1995-12-22 | 1995-12-22 | Secession preventing apparatus of focusing lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950054429A KR0182441B1 (en) | 1995-12-22 | 1995-12-22 | Secession preventing apparatus of focusing lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970056940A KR970056940A (en) | 1997-07-31 |
| KR0182441B1 true KR0182441B1 (en) | 1999-05-01 |
Family
ID=19443054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950054429A KR0182441B1 (en) | 1995-12-22 | 1995-12-22 | Secession preventing apparatus of focusing lens |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0182441B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220032233A (en) | 2020-09-07 | 2022-03-15 | 현대자동차주식회사 | One Pedal System and Vehicle Driving Method Thereof |
-
1995
- 1995-12-22 KR KR1019950054429A patent/KR0182441B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220032233A (en) | 2020-09-07 | 2022-03-15 | 현대자동차주식회사 | One Pedal System and Vehicle Driving Method Thereof |
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| Publication number | Publication date |
|---|---|
| KR970056940A (en) | 1997-07-31 |
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