JPS5468668A - Newton ring measuring apparatus - Google Patents
Newton ring measuring apparatusInfo
- Publication number
- JPS5468668A JPS5468668A JP13547877A JP13547877A JPS5468668A JP S5468668 A JPS5468668 A JP S5468668A JP 13547877 A JP13547877 A JP 13547877A JP 13547877 A JP13547877 A JP 13547877A JP S5468668 A JPS5468668 A JP S5468668A
- Authority
- JP
- Japan
- Prior art keywords
- face
- inspected
- curvature
- center
- luminous flux
- 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
- Instruments For Measurement Of Length By Optical Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE: To measure the face accuracy of the face to be inspected by having an optical system which condenses the luminous flux emitted from a light source to the center of curvature of the Newton prototype face and the face to be inspected or its vicinity.
CONSTITUTION: The luminous flux out from a lighting point light source 11 passes through a beam splitter 12 and is condensed near the center of curvature of the Newton prototype 14 whose front and back 2 faces are concentrical spherical faces or the point P near the center of curvature of the face 17 to be inspected of the specimen 16 by an auxiliary lens 13. The luminous flux having been perpendicularly reflected by the prototype face 15 and the face 16 to be inspected goes backward in nearly the same optical path as that of the incident light and the portion reflected by the beam splitter 12 is observed with an observation system 3.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13547877A JPS5468668A (en) | 1977-11-11 | 1977-11-11 | Newton ring measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13547877A JPS5468668A (en) | 1977-11-11 | 1977-11-11 | Newton ring measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5468668A true JPS5468668A (en) | 1979-06-01 |
Family
ID=15152643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13547877A Pending JPS5468668A (en) | 1977-11-11 | 1977-11-11 | Newton ring measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5468668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154880A (en) * | 2014-05-13 | 2014-11-19 | 温州大学 | Automatic curvature radius measuring instrument and measuring method thereof |
-
1977
- 1977-11-11 JP JP13547877A patent/JPS5468668A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154880A (en) * | 2014-05-13 | 2014-11-19 | 温州大学 | Automatic curvature radius measuring instrument and measuring method thereof |
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