DE2447914C3 - Vorrichtung zur automatischen Erkennung des Fokussierzustandes - Google Patents
Vorrichtung zur automatischen Erkennung des FokussierzustandesInfo
- Publication number
- DE2447914C3 DE2447914C3 DE19742447914 DE2447914A DE2447914C3 DE 2447914 C3 DE2447914 C3 DE 2447914C3 DE 19742447914 DE19742447914 DE 19742447914 DE 2447914 A DE2447914 A DE 2447914A DE 2447914 C3 DE2447914 C3 DE 2447914C3
- Authority
- DE
- Germany
- Prior art keywords
- image
- focus
- medium
- film
- focusing
- 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
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000005284 excitation Effects 0.000 claims description 8
- 230000011514 reflex Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 5
- SONNOUIBKXBPIL-UHFFFAOYSA-N [O-2].[Al+3].[Al+3].[Al+3] Chemical compound [O-2].[Al+3].[Al+3].[Al+3] SONNOUIBKXBPIL-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000009828 non-uniform distribution Methods 0.000 claims 1
- 239000010453 quartz Substances 0.000 claims 1
- 238000009827 uniform distribution Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
- G02B7/365—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals by analysis of the spatial frequency components of the image
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/40—Optical focusing aids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43410274A | 1974-01-17 | 1974-01-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2447914A1 DE2447914A1 (de) | 1975-07-31 |
| DE2447914B2 DE2447914B2 (de) | 1979-07-12 |
| DE2447914C3 true DE2447914C3 (de) | 1980-03-20 |
Family
ID=23722844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742447914 Expired DE2447914C3 (de) | 1974-01-17 | 1974-10-08 | Vorrichtung zur automatischen Erkennung des Fokussierzustandes |
Country Status (5)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5629215A (en) * | 1979-08-15 | 1981-03-24 | Konishiroku Photo Ind Co Ltd | Focus detector |
| CN112762993B (zh) * | 2020-12-29 | 2021-10-08 | 深圳市韦德勋光电科技有限公司 | 一种用于lcd逻辑板基板原材的探测装置及使用方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3689772A (en) * | 1971-08-18 | 1972-09-05 | Litton Systems Inc | Photodetector light pattern detector |
-
1974
- 1974-09-25 GB GB4167574A patent/GB1480289A/en not_active Expired
- 1974-10-08 DE DE19742447914 patent/DE2447914C3/de not_active Expired
- 1974-10-11 AT AT0821374A patent/AT370887B/de not_active IP Right Cessation
- 1974-10-15 CA CA211,440A patent/CA1021183A/en not_active Expired
- 1974-10-16 JP JP11833174A patent/JPS50104644A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA1021183A (en) | 1977-11-22 |
| DE2447914B2 (de) | 1979-07-12 |
| AT370887B (de) | 1983-05-10 |
| DE2447914A1 (de) | 1975-07-31 |
| ATA821374A (de) | 1982-05-15 |
| GB1480289A (en) | 1977-07-20 |
| JPS50104644A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-08-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |