JPH01135342U - - Google Patents
Info
- Publication number
- JPH01135342U JPH01135342U JP2866388U JP2866388U JPH01135342U JP H01135342 U JPH01135342 U JP H01135342U JP 2866388 U JP2866388 U JP 2866388U JP 2866388 U JP2866388 U JP 2866388U JP H01135342 U JPH01135342 U JP H01135342U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- eccentricity
- measured
- index image
- lens surface
- 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
- Length Measuring Devices By Optical Means (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Description
第１図は本考案に係る偏心測定装置の実施例を
示す光学配置図、第２図は同上実施例による偏心
測定原理を説明するためのイメージセンサ上での
光像の例を示す正面図及び直交座標上での光度分
布図である。
４……指標、８……被測定レンズ、１０……２
次元イメージセンサ、８１，８２，８３，８４…
…被測定レンズの各レンズ面。
FIG. 1 is an optical layout diagram showing an embodiment of the eccentricity measuring device according to the present invention, and FIG. 2 is a front view showing an example of a light image on an image sensor for explaining the principle of eccentricity measurement according to the same embodiment. It is a luminous intensity distribution map on orthogonal coordinates. 4... Index, 8... Lens to be measured, 10... 2
Dimensional image sensor, 81, 82, 83, 84...
...Each lens surface of the lens to be measured.
Claims (1)
影すると共に被測定レンズを光軸の周りに回転さ
せ、指標像の反射光像の回転半径を測定すること
により被測定レンズの各レンズ面の偏心を測定す
る偏心測定装置において、指標を点状のものにす
ると共に反射像の結像点に２次元イメージセンサ
を配置し、このイメージセンサ上での指標像の大
きさをイメージセンサの画素ピツチの２倍以上と
したことを特徴とする偏心測定装置。 Each lens surface of the lens to be measured is projected by projecting an index image onto the spherical center of each lens surface of the lens to be measured, rotating the lens to be measured around the optical axis, and measuring the radius of rotation of the reflected light image of the index image. In an eccentricity measurement device that measures the eccentricity of An eccentricity measuring device characterized in that the eccentricity is more than twice the pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2866388U JPH01135342U (en) | 1988-03-03 | 1988-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2866388U JPH01135342U (en) | 1988-03-03 | 1988-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01135342U true JPH01135342U (en) | 1989-09-18 |
Family
ID=31252213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2866388U Pending JPH01135342U (en) | 1988-03-03 | 1988-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01135342U (en) |
-
1988
- 1988-03-03 JP JP2866388U patent/JPH01135342U/ja active Pending
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