GB792686A - Improvements in and relating to optical depth measuring devices - Google Patents
Improvements in and relating to optical depth measuring devicesInfo
- Publication number
- GB792686A GB792686A GB36025/55A GB3602555A GB792686A GB 792686 A GB792686 A GB 792686A GB 36025/55 A GB36025/55 A GB 36025/55A GB 3602555 A GB3602555 A GB 3602555A GB 792686 A GB792686 A GB 792686A
- Authority
- GB
- United Kingdom
- Prior art keywords
- graduations
- scale
- depth
- microscope
- graticule
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
- G02B21/20—Binocular arrangements
- G02B21/22—Stereoscopic arrangements
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
792,686. Microscopes. GENERAL ELECTRIC CO. Dec. 15, 1955 [Dec. 15, 1954], No. 36025/55. Class 97(1) A stereoscopic microscope is provided with a pair of stereoscopic graticules by which an apparent depth scale is viewed in superposition and the object under examination whereby the depth of any indentations in the latter may be measured. As shown the microscope comprises a pair of tubes 13 each having an objective 16, a reversing prism 15 and an eyepiece 14. The left hand eyepiece carries a graticule 17 having two similar sets of equally spaced graduations 19, 20, Fig. 3. The right-hand eyepiece carries a graticule 18 having an upper set of equally spaced graduations 21, Fig. 4, spaced apart the same distance as the graduations 19 and 20, and a lower set 22 of differently spaced graduations. When viewed in the microscope the scales 19 and 21 are optically passed to . form a scale image in the plane of the object while the scales 20, 22 form an image of a scale sloping towards or away from the observer. By observing the appropriate graduations in the latter scale the depth of the object may be determined.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US792686XA | 1954-12-15 | 1954-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB792686A true GB792686A (en) | 1958-04-02 |
Family
ID=22149481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36025/55A Expired GB792686A (en) | 1954-12-15 | 1955-12-15 | Improvements in and relating to optical depth measuring devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB792686A (en) |
-
1955
- 1955-12-15 GB GB36025/55A patent/GB792686A/en not_active Expired
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