JPH0343623U - - Google Patents
Info
- Publication number
- JPH0343623U JPH0343623U JP10471389U JP10471389U JPH0343623U JP H0343623 U JPH0343623 U JP H0343623U JP 10471389 U JP10471389 U JP 10471389U JP 10471389 U JP10471389 U JP 10471389U JP H0343623 U JPH0343623 U JP H0343623U
- Authority
- JP
- Japan
- Prior art keywords
- prism
- optical system
- achromatic
- refractive index
- imaging optical
- 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.)
- Pending
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
第１図ａ，ｂ，ｃはこの考案に係る色消しプリ
ズムの実施例を示す説明図、第２図はこのプリズ
ムを用いた防振光学系の一実施例を模式的に示す
説明図、第３図はこの考案の色消しプリズムを用
いるのに適した望遠レンズのレンズ断面図、第４
図は第３図に示したレンズの収差図、第５図は第
３図に示したレンズのスポツトダイアグラム、第
６図は第３図のレンズの最も物体側に光路偏向部
を設けた例を示すレンズ断面図、第７図は第６図
の構成によるスポツトダイアグラム、第８図は第
３図のレンズの中間部に光路偏向部を設けた例を
示すレンズ断面図、第９図は第８図の構成による
スポツトダイアグラムである。
１０，２０，３０……色消しプリズム、６１，
６２……モータ（回転機構）。
1a, b, and c are explanatory diagrams showing an embodiment of the achromatic prism according to this invention; FIG. 2 is an explanatory diagram schematically showing an embodiment of an anti-vibration optical system using this prism; Figure 3 is a cross-sectional view of a telephoto lens suitable for using the achromatic prism of this invention.
The figure shows an aberration diagram of the lens shown in Fig. 3, Fig. 5 shows a spot diagram of the lens shown in Fig. 3, and Fig. 6 shows an example of the lens shown in Fig. 3 with an optical path deflection section provided closest to the object side. 7 is a spot diagram of the configuration shown in FIG. 6, FIG. 8 is a lens sectional view showing an example in which an optical path deflection section is provided in the middle of the lens of FIG. 3, and FIG. It is a spot diagram according to the configuration shown in the figure. 10, 20, 30...Achromatic prism, 61,
62...Motor (rotation mechanism).
Claims (1)
わせて構成され、光入出射端面が互いに平行であ
り、前記プリズム体の一方の材質の屈折率及びア
ツベ数をそれぞれｎｄ１，νｄ１、他方の材質の
屈折率及びアツベ数をそれぞれｎｄ２，νｄ２と
して、 （ｎｄ１−１）／νｄ１≒（ｎｄ２−１）／ν
ｄ２ を満たすことを特徴とする色消しプリズム。 (2) 結像光学系と、 ２種類の材質のプリズム体が複数個組み合わせ
て構成され、光入出射端面が共に前記結像光学系
の光軸に対して垂直であり、前記プリズム体の一
方の材質の屈折率及びアツベ数をそれぞれｎｄ１
，νｄ１、他方の材質の屈折率及びアツベ数をそ
れぞれｎｄ２，νｄ２として、 （ｎｄ１−１）／νｄ１≒（ｎｄ２−１）／ν
ｄ２ を満たす色消しプリズムが複数個で構成される光
路偏向部と、 前記結像光学系が傾斜した場合に、傾斜角度に
応じて前記色消しプリズムを前記光軸回りに回転
させることによつて静止画像を得る回転機構とを
備えることを特徴とする色消しプリズムを用いた
防振光学系。[Claims for Utility Model Registration] (1) It is constructed by combining a plurality of prism bodies made of two types of materials, the light input/output end surfaces are parallel to each other, and the refractive index and Atsube number of the material of one of the prism bodies are (nd1 -1 ) / ν d1 ≈( nd2 -1 )/ν
An achromatic prism characterized by satisfying d2 . (2) The imaging optical system is configured by combining a plurality of prism bodies made of two types of materials, the light input and output end surfaces are both perpendicular to the optical axis of the imaging optical system, and one of the prism bodies The refractive index and Atsube number of the material are respectively n d1
, ν d1 , and the refractive index and Atsube number of the other material are nd2 and ν d2 , respectively, (nd 1 -1)/ν d1 ≒ (nd 2 -1)/ν
an optical path deflection unit composed of a plurality of achromatic prisms satisfying d2 ; and when the imaging optical system is tilted, the achromatic prism is rotated around the optical axis according to the tilt angle. An anti-vibration optical system using an achromatic prism, characterized by comprising a rotation mechanism for obtaining a still image.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10471389U JPH0343623U (en) | 1989-09-06 | 1989-09-06 | |
| US07/578,202 US5280387A (en) | 1989-09-06 | 1990-09-06 | Image stabilizing apparatus |
| GB9019426A GB2235788A (en) | 1989-09-06 | 1990-09-06 | Image stabilizing apparatus |
| DE4028359A DE4028359C2 (en) | 1989-09-06 | 1990-09-06 | Image stabilization device |
| US08/026,752 US5461513A (en) | 1989-09-06 | 1993-03-05 | Image stabilizing apparatus |
| GB9318926A GB2268285B (en) | 1989-09-06 | 1993-09-13 | Image stabilizing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10471389U JPH0343623U (en) | 1989-09-06 | 1989-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343623U true JPH0343623U (en) | 1991-04-24 |
Family
ID=31653497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10471389U Pending JPH0343623U (en) | 1989-09-06 | 1989-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343623U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003172876A (en) * | 2001-12-05 | 2003-06-20 | Topcon Corp | Observation apparatus |
| JP2021050991A (en) * | 2019-09-25 | 2021-04-01 | 株式会社トプコン | Surveying device and surveying device system |
| JP2021193335A (en) * | 2020-06-08 | 2021-12-23 | 株式会社トプコン | Surveying equipment and surveying system |
-
1989
- 1989-09-06 JP JP10471389U patent/JPH0343623U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003172876A (en) * | 2001-12-05 | 2003-06-20 | Topcon Corp | Observation apparatus |
| JP2021050991A (en) * | 2019-09-25 | 2021-04-01 | 株式会社トプコン | Surveying device and surveying device system |
| US11698254B2 (en) | 2019-09-25 | 2023-07-11 | Topcon Corporation | Surveying instrument having wavelength dispersion compensation prisms and surveying instrument system |
| JP2021193335A (en) * | 2020-06-08 | 2021-12-23 | 株式会社トプコン | Surveying equipment and surveying system |
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