JPH027541U - - Google Patents
Info
- Publication number
- JPH027541U JPH027541U JP8671488U JP8671488U JPH027541U JP H027541 U JPH027541 U JP H027541U JP 8671488 U JP8671488 U JP 8671488U JP 8671488 U JP8671488 U JP 8671488U JP H027541 U JPH027541 U JP H027541U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- measured
- image
- index
- eccentricity
- 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
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
Description
第１図は本考案の１実施例を要部のみ略示する
説明図、第２図は、偏心測定の説明図である。
１……光源、２……コンデンサーレンズ、３…
…指標、４……半透鏡、５……コリメートレンズ
、６……ビームスプリツター、８１，８２……１
対の対物レンズ、７，９，１０……ミラー、１２
……２次元センサー、１５……回転ステージの駆
動部、１６……回転ステージの保持部。
FIG. 1 is an explanatory diagram schematically showing only the essential parts of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of eccentricity measurement. 1...Light source, 2...Condenser lens, 3...
... Index, 4 ... Semi-transparent mirror, 5 ... Collimating lens, 6 ... Beam splitter, 81, 82 ... 1
Pair of objective lenses, 7, 9, 10...Mirror, 12
...Two-dimensional sensor, 15... Rotation stage drive section, 16... Rotation stage holding section.
Claims (1)
像を投影し、上記レンズ面による上面指標の反射
像の座標の計測により上記レンズ面の偏心を測定
する装置であつて、 コリメートレンズから被測定レンズに向かう光
束を２光束に分離するビームスプリツターと、 被測定レンズを保持し、回転させる回転ステー
ジと、 上記ビームスプリツターにより２分された光束
の各々につき、一方は被測定レンズ表面側に到る
光路を形成し、他方は上記被測定レンズの裏面側
に到る光路を形成する光路形成部材と、 上記各光路に光軸方向へ可動に配備された１対
の対物レンズと、 上記対物レンズを介して指標の像を投影された
レンズ面からの反射像が結像される２次元センサ
ーと、 上記２次元センサーの出力信号を演算手段によ
り演算処理して、上記レンズ面の偏心量を算出す
る演算手段とを有し、 被測定レンズの所望のレンズ面へ指標の像を、
表面側及び／又は裏面側から投影し得るようにし
たことを特徴とする偏心測定装置。[Claims for Utility Model Registration] An apparatus for projecting an image of an index onto the spherical center of a desired lens surface of a lens to be measured, and measuring the eccentricity of the lens surface by measuring the coordinates of the reflected image of the upper surface index by the lens surface. A beam splitter that separates the light beam directed from the collimating lens toward the lens to be measured into two beams, a rotation stage that holds and rotates the lens to be measured, and a beam splitter for each of the light beams split into two by the beam splitter. an optical path forming member, one of which forms an optical path to the front surface of the lens to be measured, and the other to the back surface of the lens to be measured; a pair of objective lenses, a two-dimensional sensor on which a reflected image from a lens surface onto which an image of an index is projected through the objective lens is formed, and an output signal of the two-dimensional sensor is processed by a calculation means. and a calculation means for calculating the amount of eccentricity of the lens surface, and directs the image of the index onto a desired lens surface of the lens to be measured,
An eccentricity measuring device characterized in that it is capable of projecting from the front side and/or the back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8671488U JPH027541U (en) | 1988-06-30 | 1988-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8671488U JPH027541U (en) | 1988-06-30 | 1988-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH027541U true JPH027541U (en) | 1990-01-18 |
Family
ID=31311353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8671488U Pending JPH027541U (en) | 1988-06-30 | 1988-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5111031U (en) * | 1974-07-10 | 1976-01-27 |
-
1988
- 1988-06-30 JP JP8671488U patent/JPH027541U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5111031U (en) * | 1974-07-10 | 1976-01-27 | ||
| JPS5329454Y2 (en) * | 1974-07-10 | 1978-07-24 |
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