JPH0548179Y2 - - Google Patents
Info
- Publication number
- JPH0548179Y2 JPH0548179Y2 JP1986003044U JP304486U JPH0548179Y2 JP H0548179 Y2 JPH0548179 Y2 JP H0548179Y2 JP 1986003044 U JP1986003044 U JP 1986003044U JP 304486 U JP304486 U JP 304486U JP H0548179 Y2 JPH0548179 Y2 JP H0548179Y2
- Authority
- JP
- Japan
- Prior art keywords
- camera
- hole
- ring
- close
- narrow
- 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
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Accessories Of Cameras (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、TVカメラ等に取り付ける狭視野接
写撮影用アダプターに関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an adapter for narrow-field close-up photography that is attached to a TV camera or the like.
（従来技術）
従来、TVカメラ等に取り付ける狭視野接写撮
影用アダプター使用時被写体を照明する場合、第
２図に示すように、TVカメラ１と別体の蛍光灯
２０をTVカメラ１の前部に配置し、被写体２１
を広範囲に照射したり、第３図に示すように、
TVカメラ１と別体のハロゲンランプやタングス
テンランプやキセノンランプ２２をTVカメラ１
の側部に配置し、被写体２１を側方からスポツト
照射していた。(Prior Art) Conventionally, when illuminating a subject when using a narrow-field close-up adapter attached to a TV camera, etc., a fluorescent lamp 20 separate from the TV camera 1 is attached to the front of the TV camera 1, as shown in FIG. and place subject 21
irradiate a wide area, or as shown in Figure 3,
TV camera 1 and a separate halogen lamp, tungsten lamp, or xenon lamp 22
The object 21 was spot irradiated from the side.
又、実開昭57−150836号公報に示すように、接
写用筒体の外側に光源を配設し、光フアイバーに
より被検物を照射するようにした撮像装置は公知
である。 Furthermore, as shown in Japanese Utility Model Application Laid-Open No. 57-150836, an imaging apparatus is known in which a light source is disposed outside a close-up barrel and an object to be examined is irradiated with an optical fiber.
（考案が解決しようとする問題点）
ところで第２図、第３図に示した上記従来技術
に於ては照明装置が大きく、カメラレンズや対物
レンズを接近させ撮影するとき、レンズの影がで
きたり、目的とする場所に照明できないためカメ
ラ、レンズ等の光学系を傾け照明するので、TV
カメラによる計測には角度誤差を生じ、又照明装
置はTVカメラと独立していたので取り付けが複
雑で作業性が悪く、更にハロゲンランプ、タング
ステンランプは寿命が短く短期間でランプ交換し
なければならないという問題点があつた。(Problems to be solved by the invention) By the way, in the above-mentioned conventional technology shown in Figs. 2 and 3, the illumination device is large, and when the camera lens or objective lens is brought close together to take a picture, a shadow is created by the lens. In some cases, the camera, lens, and other optical systems must be tilted to illuminate the target area, so the TV cannot be illuminated.
Measurement using a camera causes angular errors, and since the lighting system is separate from the TV camera, installation is complicated and workability is poor.Furthermore, halogen lamps and tungsten lamps have short lifespans and must be replaced after a short period of time. There was a problem.
又、実開昭57−150836号公報に開示された撮像
装置は対物レンズ外径より外側に光フアイバー先
端が配置されているので装置全体が大型化し、対
物レンズ筒内部での乱反射により外乱光の悪影響
があり、対物レンズ外径側に光フアイバーがある
ため被検物の影の悪影響があるという問題点があ
つた。 In addition, in the imaging device disclosed in Japanese Utility Model Application Publication No. 57-150836, the tip of the optical fiber is placed outside the outer diameter of the objective lens, which increases the overall size of the device and reduces the amount of ambient light due to diffuse reflection inside the objective lens barrel. However, since the optical fiber is located on the outer diameter side of the objective lens, there is a problem in that the shadow of the object to be examined has an adverse effect.
本考案はこのような問題点を解決することを目
的としている。 The present invention aims to solve these problems.
（問題点を解決するための手段）
本考案は上記問題点に着目してなされたもの
で、TVカメラの接写リングにカメラ用レンズを
固定するようにした撮影用アダプターであつて、
カメラ用レンズの前面に固定されるリングと、該
リング内周に固定されたホルダーとからなり、該
ホルダーの中心部に狭視野孔が形成され、該狭視
野孔の外側に被測定物中心に向けて孔が形成さ
れ、該孔内に被測定物照明用のダイオードが配設
されてなることを特徴とするものである。(Means for Solving the Problems) The present invention was made with attention to the above problems, and is a photography adapter that fixes a camera lens to the close-up ring of a TV camera.
It consists of a ring fixed to the front surface of the camera lens and a holder fixed to the inner periphery of the ring. A narrow field of view hole is formed in the center of the holder, and a narrow field of view hole is formed outside the narrow field of view hole. The device is characterized in that a hole is formed toward the object, and a diode for illuminating the object to be measured is disposed within the hole.
（実施例）
以下、第１図に示した実施例に基づきて具体的
に説明する。１はTVカメラ、２は接写リング、
３はカメラ用レンズ、４はモニタテレビである。
このカメラ用レンズ３の前にリング５を固定し、
該リング５にホルダー６をねじ７で固定してあ
る。ホルダー６中心部には狭視野孔８を形成し、
狭視野孔外径近傍に被測定物９の中心部に向けて
孔１０を形成して発光ダイオード１１を該孔１０
に嵌合固定し、外部電源１２に接続してある。(Example) Hereinafter, a detailed description will be given based on the example shown in FIG. 1 is a TV camera, 2 is a close-up ring,
3 is a camera lens, and 4 is a monitor television.
A ring 5 is fixed in front of this camera lens 3,
A holder 6 is fixed to the ring 5 with screws 7. A narrow viewing hole 8 is formed in the center of the holder 6,
A hole 10 is formed near the outer diameter of the narrow field hole toward the center of the object to be measured 9, and a light emitting diode 11 is inserted into the hole 10.
The external power source 12 is connected to the external power source 12.
次に作用について説明する。被測定物９の測定
面に合せねじ７をゆるめてホルダー６を回転さ
せ、次いで、ねじ７を締めて固定し発光ダイオー
ド１１より光を照射する。被測定物９からの反射
光は狭視野孔８よりカメラ用レンズ３、接写リン
グ２よりTVカメラ１に導かれる。 Next, the effect will be explained. The holder 6 is rotated by loosening the set screw 7 on the measurement surface of the object 9 to be measured, and then the screw 7 is tightened to fix the holder 6 and light is emitted from the light emitting diode 11. The reflected light from the object to be measured 9 is guided to the camera lens 3 through the narrow field aperture 8 and to the TV camera 1 through the close-up ring 2.
発光ダイオード１１は被測定物９の表面状態に
より反射率が低下してしまう場合は複数個配設し
てもよく、又TVカメラの感度特性に応じた波長
の発光ダイオードを使用する。 A plurality of light emitting diodes 11 may be provided if the reflectance is reduced due to the surface condition of the object 9 to be measured, and a light emitting diode having a wavelength corresponding to the sensitivity characteristics of the TV camera is used.
（効果）
本考案によると、TVカメラの接写リングにカ
メラ用レンズを固定するようにした撮影用アダプ
ターであつて、カメラ用レンズの前面に固定され
るリングと、該リング内周に固定されたホルダー
とからなり、該ホルダーの中心部に狭視野孔が形
成され、該狭視野孔の外側に被測定物中心に向け
て孔が形成され、該孔内に被測定物照明用のダイ
オードが配設されているので、カメラ用レンズ部
と光源が一体化し、レンズ外径より内側に発光ダ
イオードを配設しているので装置全体がコンパク
トになり、又、発光ダイオードを使用しているの
でオン・オフが繰り返しても寿命が長く、メンテ
ナンスが不要でコストダウンを計ることができ
る。又、狭視野専用となつているので外乱光の影
響がなく、発光ダイオードの取付位置がレンズ中
心に近いため被検物の影が生せず直視することが
でき、計測の角度誤差を防止できる。(Effects) According to the present invention, the camera lens is fixed to the close-up ring of a TV camera. A narrow field hole is formed in the center of the holder, a hole is formed outside the narrow field hole toward the center of the object to be measured, and a diode for illuminating the object to be measured is arranged inside the hole. Since the camera lens part and the light source are integrated, and the light emitting diode is placed inside the outer diameter of the lens, the entire device becomes compact.Also, since the light emitting diode is used, it is easy to turn on and off. It has a long service life even if it is turned off repeatedly, and requires no maintenance, reducing costs. In addition, since it is designed exclusively for narrow field of view, it is not affected by ambient light, and since the light emitting diode is mounted close to the center of the lens, the object to be inspected can be viewed directly without shadows, and angular errors in measurement can be prevented. .
第１図は本考案の一実施例要部切断正面図、第
２図は従来装置の第１比較例正面図、第３図は同
第２比較例斜視図である。
１……TVカメラ、２……接写リング、３……
カメラ用レンズ、５……リング、６……ホルダ
ー、８……狭視野孔、１０……孔、１１……発光
ダイオード、１２……外部電源。
FIG. 1 is a cutaway front view of essential parts of an embodiment of the present invention, FIG. 2 is a front view of a first comparative example of a conventional device, and FIG. 3 is a perspective view of a second comparative example. 1...TV camera, 2...close-up ring, 3...
Camera lens, 5...Ring, 6...Holder, 8...Narrow field hole, 10...Hole, 11...Light emitting diode, 12...External power supply.
Claims (1)
定するようにした撮影用アダプターであつて、カ
メラ用レンズの前面に固定されるリングと、該リ
ング内周に固定されたホルダーとからなり、該ホ
ルダーの中心部に狭視野孔が形成され、該狭視野
孔の外側に被測定物中心に向けて孔が形成され、
該孔内に被測定物照明用のダイオードが配設され
てなる狭視野接写撮影用アダプター。 This is a photography adapter that fixes a camera lens to the close-up ring of a TV camera, and consists of a ring that is fixed to the front of the camera lens, and a holder that is fixed to the inner circumference of the ring. A narrow field hole is formed in the center, a hole is formed outside the narrow field hole toward the center of the object to be measured,
An adapter for narrow-field close-up photography in which a diode for illuminating the object to be measured is arranged in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986003044U JPH0548179Y2 (en) | 1986-01-16 | 1986-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986003044U JPH0548179Y2 (en) | 1986-01-16 | 1986-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62116236U JPS62116236U (en) | 1987-07-23 |
| JPH0548179Y2 true JPH0548179Y2 (en) | 1993-12-21 |
Family
ID=30782443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986003044U Expired - Lifetime JPH0548179Y2 (en) | 1986-01-16 | 1986-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0548179Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006337422A (en) * | 2005-05-31 | 2006-12-14 | Sigma Corp | Illuminating device for macro-photographic lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224272Y2 (en) * | 1981-03-16 | 1987-06-20 |
-
1986
- 1986-01-16 JP JP1986003044U patent/JPH0548179Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62116236U (en) | 1987-07-23 |
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