JP3200433B2 - Video camera - Google Patents
Video cameraInfo
- Publication number
- JP3200433B2 JP3200433B2 JP27145690A JP27145690A JP3200433B2 JP 3200433 B2 JP3200433 B2 JP 3200433B2 JP 27145690 A JP27145690 A JP 27145690A JP 27145690 A JP27145690 A JP 27145690A JP 3200433 B2 JP3200433 B2 JP 3200433B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- holding member
- fixing portion
- lens holding
- mounting seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、電子シャッター機能を備えた撮像素子とこ
の撮像素子と組合わされて用いられるレンズとを具備す
るビデオカメラに関する。Description: TECHNICAL FIELD The present invention relates to a video camera provided with an image sensor having an electronic shutter function and a lens used in combination with the image sensor.
（発明の背景） 第４図は従来のレンズ保持機構の一例の構成を示す断
面図である。(Background of the Invention) FIG. 4 is a sectional view showing a configuration of an example of a conventional lens holding mechanism.
本従来例は、レンズ保持部材12に別部品のレンズ押え
11を嵌合し、これによりレンズ３を固定するようになっ
ている。レンズ押え11にはネジ部が設けられており、こ
れが撮像素子がハンダ等により固定された基板と一体と
なった取付座10のネジ部と嵌合し、この嵌合の深さを変
化させることにより合焦の調整を行う。In this conventional example, the lens holding member 12 has a separate lens holding member.
11 are fitted, thereby fixing the lens 3. The lens holder 11 is provided with a thread portion, which is fitted with the thread portion of the mounting seat 10 integrated with the substrate to which the image pickup device is fixed by soldering or the like, and changes the depth of the fitting. To adjust the focus.
なおCCD5はCCD基板６上の所定位置にハンダ付けによ
り固定されており、取付座10は、このCCD5を内部に収納
して、ビス13によりCCD基板６に固定されている。入射
光はCCD5の結像面８に結像するように合焦の調整がなさ
れる。The CCD 5 is fixed to a predetermined position on the CCD substrate 6 by soldering, and the mounting seat 10 houses the CCD 5 therein and is fixed to the CCD substrate 6 by screws 13. Focusing is adjusted so that the incident light forms an image on the image plane 8 of the CCD 5.
組立てに際しては、まず、レンズを保持しているレン
ズ保持部材12にレンズ３を嵌合後、レンズ押え11をネジ
込み、レンズ３を固定した後、接着する（Ａ部）。続い
て、取付座10に取付けてねじ回転により嵌合の深さを調
節し、合焦調整を行った後、取付座10とレンズ押え11と
を固定する（Ｂ部）。レンズ保持部材12とレンズ押え11
とを予め接着するのは、レンズ保持部材12を回転させて
ピント出しをした際、ゆるむ恐れがあるからである。In assembling, first, the lens 3 is fitted into the lens holding member 12 holding the lens, the lens presser 11 is screwed in, the lens 3 is fixed, and then bonded (part A). Subsequently, after attaching to the mounting seat 10 to adjust the depth of fitting by rotating the screw and performing focusing adjustment, the mounting seat 10 and the lens holder 11 are fixed (part B). Lens holding member 12 and lens holder 11
The reason is that the lens is loosened when the lens holding member 12 is rotated to focus.
（発明が解決しようとする課題） 上述した従来の技術は、レンズ保持部材に別部品のレ
ンズ押えを用いてレンズを固定するため、作業性が悪
く、コスト高となる。さらに、レンズ押えを固定するた
めに、ネジロック剤などの接着剤が必要となり、この点
でも、煩わしさがあり、コスト上昇の一因となる。(Problems to be Solved by the Invention) In the above-described conventional technology, the lens is fixed by using a separate lens presser for the lens holding member, so that workability is poor and cost is increased. Further, an adhesive such as a screw lock agent is required to fix the lens holder, and this also causes trouble and contributes to an increase in cost.
本発明はこのような従来技術の問題点に鑑みてなされ
たものであり、その目的は、部品点数を減らし、コスト
上昇を抑制するとともに、組立ての作業性を改善するこ
とにある。The present invention has been made in view of such problems of the related art, and an object of the present invention is to reduce the number of parts, suppress a rise in cost, and improve the workability of assembly.
（課題を解決するための手段） 請求項１記載の発明は、基板に固定された撮像素子
と、該撮像素子の周囲を内壁面で囲むように、前記基板
上に取り付けられた取付座と、同軸的に形成された開口
部及びレンズ固定部が前記撮像素子の撮像面と対向する
ように、前記取付座に螺合され、その螺合量に応じて前
記撮像素子の撮像面と前記開口部及びレンズ固定部との
間隔が変化するレンズ保持部材と、前記レンズ保持部材
の開口部を通過した光が通るように前記レンズ保持部材
のレンズ固定部に外周部が支持されたレンズとを具備す
るビデオカメラであって、前記レンズ保持部材のレンズ
固定部には、前記レンズを収納する凹部が形成され、こ
の凹部内の前記レンズを取り囲む壁部をカシメることに
より、前記レンズを前記レンズ固定部に固定したことを
特徴とするものである。(Means for Solving the Problems) The invention according to claim 1 includes an image sensor fixed to a substrate, a mounting seat mounted on the substrate so as to surround the periphery of the image sensor with an inner wall surface, An opening formed coaxially and a lens fixing portion are screwed to the mounting seat so as to face the imaging surface of the imaging device, and the imaging surface of the imaging device and the opening are screwed according to the amount of screwing. A lens holding member having a variable distance from the lens fixing portion, and a lens having an outer peripheral portion supported by the lens fixing portion of the lens holding member so that light passing through the opening of the lens holding member passes therethrough. In a video camera, a concave portion for accommodating the lens is formed in a lens fixing portion of the lens holding member, and a wall portion surrounding the lens in the concave portion is caulked, whereby the lens is fixed to the lens fixing portion. Fixed to It is characterized by having.
請求項２記載の発明は、請求項１記載の発明におい
て、前記レンズ保持部材のレンズ固定部は、プラスチッ
ク材料で構成され、且つ、このレンズ固定部には、前記
レンズの外周部の厚みよりも深い凹部が形成され、前記
凹部内の前記レンズの表面よりも突き出た前記凹部の壁
部を熱カシメによって変形させることにより、前記レン
ズを前記レンズ固定部に固定したことを特徴とするもの
である。According to a second aspect of the present invention, in the first aspect, the lens fixing portion of the lens holding member is made of a plastic material, and the lens fixing portion has a thickness larger than a thickness of an outer peripheral portion of the lens. A deep concave portion is formed, and the lens is fixed to the lens fixing portion by deforming a wall portion of the concave portion protruding from a surface of the lens in the concave portion by thermal caulking. .
（作用） 請求項１記載の発明では、レンズ保持部材のレンズ固
定部は、凹部で形成され、そこにレンズを収納する。そ
して、この凹部内のレンズを取り囲む壁部をカシメるこ
とにより、レンズをレンズ固定部に固定する。従って、
レンズ押えは不要になる。又、レンズ保持部材は取付座
に螺合しており、その螺合量を調整することにより合焦
調整を行える。一方、レンズ保持部材の開口部は固定絞
りとして機能する。(Operation) According to the first aspect of the invention, the lens fixing portion of the lens holding member is formed by a concave portion, and houses the lens therein. Then, the wall portion surrounding the lens in the concave portion is caulked to fix the lens to the lens fixing portion. Therefore,
The need for a lens holder is eliminated. Further, the lens holding member is screwed to the mounting seat, and the focus can be adjusted by adjusting the screwing amount. On the other hand, the opening of the lens holding member functions as a fixed stop.
請求項２記載の発明では、レンズ保持部材のレンズ固
定部は、プラスチック材料で構成されている。プラスチ
ックの場合、機械的に凹部の壁部を変形させるカシメで
は、十分な強度を得難いが、本発明のように、レンズの
外周部を覆うように熱カシメを行えば、レンズの脱落を
確実に防止できる。According to the second aspect of the invention, the lens fixing portion of the lens holding member is made of a plastic material. In the case of plastic, it is difficult to obtain sufficient strength by caulking which mechanically deforms the wall of the concave portion, but as in the present invention, if thermal caulking is performed so as to cover the outer peripheral portion of the lens, the lens will fall off securely Can be prevented.
（実施例） 第３図は本発明の一実施例の要部の斜視図（レンズ保
持部材の裏側から見た概略図も併記されている）であ
る。(Embodiment) FIG. 3 is a perspective view of a main part of one embodiment of the present invention (a schematic diagram viewed from the back side of a lens holding member is also shown).
レンズ保持部材２は、先端部に設けられたすりばち状
の凹部の底面に開口７を有する。また、取付座１との嵌
合の深さを調節するためのねじ部９が設けられており、
さらに、レンズ３を収納して最終的に熱ガシメによって
固定するためのカシメ部（レンズ固定部）４を有してい
る。本実施例では、レンズ保持部材２は、取付座１と同
一のプラスチック材料からなっている。但し、材料は同
一にする必要はなく、また、プラスチックの代わりに金
属材料で構成することもできる。The lens holding member 2 has an opening 7 on the bottom surface of the mortar-shaped recess provided at the tip end. Further, a screw portion 9 for adjusting the depth of fitting with the mounting seat 1 is provided,
Further, it has a caulking portion (lens fixing portion) 4 for housing the lens 3 and finally fixing it by heat caulking. In this embodiment, the lens holding member 2 is made of the same plastic material as the mounting seat 1. However, the materials do not need to be the same, and may be made of a metal material instead of plastic.
第１図は第３図のＸ−Ｘ線に沿う断面図（CCD基板も
併せて示してある）である。FIG. 1 is a sectional view taken along line XX of FIG. 3 (also showing a CCD substrate).
図示されるように、CCD5がハンダ付けされたCCD基板
６に、取付座１がビス13によって取付けられている。取
付座１の開口部にはねじ部20が設けられており、レンズ
保持部材２の外周に設けられたねじ部９と嵌合してい
る。As shown, the mounting seat 1 is mounted on a CCD substrate 6 to which a CCD 5 is soldered by screws 13. A screw portion 20 is provided in an opening of the mounting seat 1, and is fitted with a screw portion 9 provided on the outer periphery of the lens holding member 2.
レンズ３は、カシメ部４に突き当てによって嵌合して
おり、その位置で熱ガシメによってカシメ部４の壁面が
内側に変形され、固定されている。すなわち、第２図
（ａ）に示すように、レンズ３をカシメ部４内に収納し
た後、同図（ｂ）のように熱ガシメによってカシメ部４
の壁面を変形させてレンズ３を固定する。The lens 3 is fitted to the caulking portion 4 by abutting, and the wall of the caulking portion 4 is deformed inward by the heat caulking at that position and fixed. That is, as shown in FIG. 2 (a), after the lens 3 is stored in the caulking portion 4, the caulking portion 4 is heated by caulking as shown in FIG. 2 (b).
The lens 3 is fixed by deforming the wall surface.
また、レンズ保持部材２の開口部７は絞りの働きをす
る。いわゆる固定絞りであり、光量の微調整は、CCD5の
電荷転送タイミングを制御する電子シャッター機能によ
り行う。The opening 7 of the lens holding member 2 functions as a diaphragm. This is a so-called fixed stop, and the fine adjustment of the light amount is performed by an electronic shutter function for controlling the charge transfer timing of the CCD 5.
合焦の調節は、レンズ保持部材２を回転させ、取付座
１とレンズ保持部材２の嵌合の深さを変化させることに
よって行う。この合焦調整により入射光が結像面８に正
確に結像するようになった後、ネジロック剤などの接着
剤により、レンズ保持部材２と取付座１を固定する（Ｃ
部）。Adjustment of focusing is performed by rotating the lens holding member 2 and changing the fitting depth of the mounting seat 1 and the lens holding member 2. After the incident light accurately forms an image on the image plane 8 by this focusing adjustment, the lens holding member 2 and the mounting seat 1 are fixed with an adhesive such as a screw lock agent (C).
Department).
このように、レンズ保持部材２は、カシメ部４により
レンズ３を固定する機能と、さらに、絞り機能および合
焦調整機能を集約して有しており、従来技術のように、
レンズ押えが必要なく、接着剤による固定箇所も減少す
る。As described above, the lens holding member 2 has the function of fixing the lens 3 by the caulking portion 4, and further has the aperture function and the focus adjustment function.
There is no need to hold down the lens, and the number of places to be fixed by the adhesive is reduced.
本発明は上述の実施例に限定されるものではなく、種
々変形可能である。The present invention is not limited to the above-described embodiment, and can be variously modified.
例えば、上述の実施例では、レンズ保持部材２の先端
は反射防止を目的としたすりばち状の凹部となっている
が、この先端部の形状を第５図（ａ）に示すようにフラ
ットとすることもできる。このような先端がフラットで
ある場合、すりばち状の凹部を有する第５図（ｂ）の構
成と比較して、以下のような利点がある。For example, in the above-described embodiment, the tip of the lens holding member 2 is a cusp-shaped recess for the purpose of preventing reflection, but the tip is flat as shown in FIG. 5 (a). You can also. When such a tip is flat, there are the following advantages as compared with the configuration of FIG.
すなわち、先端がフラットの場合の開口部は、すりば
ち状の凹部の場合の開口部より小さくなる（図中、ａ＜
ｂ）。このため、外部を写すとき、開口部がより小さく
なるため目立ちにくい。したがって、人形の眼などに、
このカメラを仕込んでおけば、相手に気づかれることも
なく、監視カメラの役目も果たすことができる。That is, the opening when the tip is flat is smaller than the opening when the horn-shaped recess is formed (a <a in the figure).
b). For this reason, when photographing the outside, the opening is smaller, so that it is less noticeable. Therefore, in the eyes of dolls,
If this camera is installed, it can also serve as a surveillance camera without being noticed by the other party.
（発明の効果） 以上説明したように本発明は、レンズ保持部材にレン
ズ固定、合焦調整、絞りの３つの機能を集約させること
によって、レンズ押えを排して部品点数を減らし、コス
ト上昇を抑制するとともに、組立ての作業性を改善する
ことができる効果がある。(Effects of the Invention) As described above, the present invention integrates three functions of lens fixing, focusing adjustment, and aperture on the lens holding member, thereby eliminating the lens presser, reducing the number of parts, and increasing the cost. In addition to the suppression, there is an effect that the workability of assembly can be improved.
第１図は本発明の要部構成を示す断面図（第３図のＸ−
Ｘ線に沿っている）、 第２図（ａ），（ｂ）はレンズを固定する機構を説明す
るための図、 第３図はレンズ保持部材と取付座の一例の斜視図（レン
ズ保持部材の裏側から見た概略図も併記されている）、 第４図は従来のレンズ保持機構の一例の構成を示す断面
図、 第５図（ａ），（ｂ）は本発明の変形例の構成とその利
点を説明するための図であり、（ａ）は変形例の要部の
構成を示し、（ｂ）は比較例の要部の構成を示す。 １……取付座、２……レンズ保持部材 ３……レンズ、４……カシメ部 ５……CCD、６……CCD基板 ７……開口、８……結像面 ９……ねじ部、11……レンズ押え 13……ビスFIG. 1 is a cross-sectional view (X-
2 (a) and 2 (b) are diagrams for explaining a mechanism for fixing a lens, and FIG. 3 is a perspective view of an example of a lens holding member and a mounting seat (lens holding member). 4 is a cross-sectional view showing an example of the configuration of a conventional lens holding mechanism, and FIGS. 5A and 5B are configurations of a modified example of the present invention. FIGS. 7A and 7B are diagrams for explaining the advantages of the present invention, wherein FIG. 7A shows a configuration of a main part of a modified example, and FIG. DESCRIPTION OF SYMBOLS 1 ... Mounting seat 2 ... Lens holding member 3 ... Lens 4 ... Caulking part 5 ... CCD, 6 ... CCD board 7 ... Opening, 8 ... Image forming surface 9 ... Screw part, 11 …… Lens presser 13 …… Screw
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H04N 5/222 - 5/253 H04N 5/335 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H04N 5/222-5/253 H04N 5/335
Claims (2)
取り付けられた取付座と、 同軸的に形成された開口部及びレンズ固定部が前記撮像
素子の撮像面と対向するように、前記取付座に螺合さ
れ、その螺合量に応じて前記撮像素子の撮像面と前記開
口部及びレンズ固定部との間隔が変化するレンズ保持部
材と、 前記レンズ保持部材の開口部を通過した光が通るように
前記レンズ保持部材のレンズ固定部に外周部が支持され
たレンズと を具備するビデオカメラであって、 前記レンズ保持部材のレンズ固定部には、前記レンズを
収納する凹部が形成され、この凹部内の前記レンズを取
り囲む壁部をカシメることにより、前記レンズを前記レ
ンズ固定部に固定したビデオカメラ。An image sensor fixed to a substrate, a mounting seat mounted on the substrate so as to surround the image sensor with an inner wall surface, an opening formed coaxially and a lens fixing portion. Is screwed to the mounting seat so as to face the imaging surface of the imaging device, and the distance between the imaging surface of the imaging device and the opening and the lens fixing portion changes according to the amount of screwing. A video camera comprising: a member; and a lens having an outer peripheral portion supported by a lens fixing portion of the lens holding member so that light passing through an opening of the lens holding member passes therethrough, wherein the lens of the lens holding member is provided. A video camera in which a recess for accommodating the lens is formed in the fixing portion, and a wall portion surrounding the lens in the recess is caulked to fix the lens to the lens fixing portion.
ラスチック材料で構成され、且つ、このレンズ固定部に
は、前記レンズの外周部の厚みよりも深い凹部が形成さ
れ、前記凹部内の前記レンズの表面よりも突き出た前記
凹部の壁部を熱カシメによって変形させることにより、
前記レンズを前記レンズ固定部に固定したことを特徴と
する請求項１記載のビデオカメラ。2. A lens fixing portion of the lens holding member is made of a plastic material, and a concave portion deeper than a thickness of an outer peripheral portion of the lens is formed in the lens fixing portion. By deforming the wall of the concave portion protruding from the surface of the lens by thermal caulking,
The video camera according to claim 1, wherein the lens is fixed to the lens fixing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27145690A JP3200433B2 (en) | 1990-10-09 | 1990-10-09 | Video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27145690A JP3200433B2 (en) | 1990-10-09 | 1990-10-09 | Video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04150274A JPH04150274A (en) | 1992-05-22 |
| JP3200433B2 true JP3200433B2 (en) | 2001-08-20 |
Family
ID=17500286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27145690A Expired - Lifetime JP3200433B2 (en) | 1990-10-09 | 1990-10-09 | Video camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3200433B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0873010A1 (en) * | 1997-04-18 | 1998-10-21 | Fifty Cycle Video Laser Device Co. Ltd. | Lens assembly and housing for a video camera |
| JP4737311B2 (en) * | 2009-03-09 | 2011-07-27 | ソニー株式会社 | Optical module and manufacturing method thereof, imaging apparatus and manufacturing method thereof, and camera system and manufacturing method thereof |
-
1990
- 1990-10-09 JP JP27145690A patent/JP3200433B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04150274A (en) | 1992-05-22 |
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