JPS56130606A - Optical measuring device for thickness of transparent material - Google Patents
Optical measuring device for thickness of transparent materialInfo
- Publication number
- JPS56130606A JPS56130606A JP3455580A JP3455580A JPS56130606A JP S56130606 A JPS56130606 A JP S56130606A JP 3455580 A JP3455580 A JP 3455580A JP 3455580 A JP3455580 A JP 3455580A JP S56130606 A JPS56130606 A JP S56130606A
- Authority
- JP
- Japan
- Prior art keywords
- transparent material
- thickness
- lens
- measuring device
- optical measuring
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
Abstract
PURPOSE:To measure the thickness of the transparent material without contacting, by measuring light path distances of reflection lights from the surface and the reverse face when the light beam is irradiated to the transparent material. CONSTITUTION:The laser beam from light source 2 consisting of an He-Ne laser oscillator is condensed to the measure position of transparent material 1 by lens 3. Lights reflected by surface S0 and reverse face S1 of transparent material 1 are condensed onto screen 6 by lens 4 and become bright point. Bright points become sharp by arranging lens 4 and screen 6 properly, and the distance between these bright points is measured to obtain the thickness of transparent material 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3455580A JPS56130606A (en) | 1980-03-18 | 1980-03-18 | Optical measuring device for thickness of transparent material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3455580A JPS56130606A (en) | 1980-03-18 | 1980-03-18 | Optical measuring device for thickness of transparent material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56130606A true JPS56130606A (en) | 1981-10-13 |
Family
ID=12417551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3455580A Pending JPS56130606A (en) | 1980-03-18 | 1980-03-18 | Optical measuring device for thickness of transparent material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56130606A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58216904A (en) * | 1982-06-11 | 1983-12-16 | Toshiba Corp | Thickness measuring device |
JP2002176240A (en) * | 2000-12-07 | 2002-06-21 | Shibuya Kogyo Co Ltd | Method and system for boring via hole |
JP2012083183A (en) * | 2010-10-12 | 2012-04-26 | Pulstec Industrial Co Ltd | Thickness measuring device for light-transmissive tubular object |
-
1980
- 1980-03-18 JP JP3455580A patent/JPS56130606A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58216904A (en) * | 1982-06-11 | 1983-12-16 | Toshiba Corp | Thickness measuring device |
JP2002176240A (en) * | 2000-12-07 | 2002-06-21 | Shibuya Kogyo Co Ltd | Method and system for boring via hole |
JP2012083183A (en) * | 2010-10-12 | 2012-04-26 | Pulstec Industrial Co Ltd | Thickness measuring device for light-transmissive tubular object |
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