FR2429443A1 - Element de couplage, muni d'une source lumineuse et d'une lentille - Google Patents
Element de couplage, muni d'une source lumineuse et d'une lentilleInfo
- Publication number
- FR2429443A1 FR2429443A1 FR7915469A FR7915469A FR2429443A1 FR 2429443 A1 FR2429443 A1 FR 2429443A1 FR 7915469 A FR7915469 A FR 7915469A FR 7915469 A FR7915469 A FR 7915469A FR 2429443 A1 FR2429443 A1 FR 2429443A1
- Authority
- FR
- France
- Prior art keywords
- lens
- laser
- cap
- distance
- light source
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 2
- 229910052738 indium Inorganic materials 0.000 abstract 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4226—Positioning means for moving the elements into alignment, e.g. alignment screws, deformation of the mount
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
- H01L2924/19107—Disposition of discrete passive components off-chip wires
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Optical Couplings Of Light Guides (AREA)
- Led Device Packages (AREA)
- Semiconductor Lasers (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Optical Head (AREA)
Abstract
Aussi bien pour des systèmes de communication par voie optique que pour l'appareillage de reproduction d'information de disques vidéo, il importe que le laser, (semi-conducteur) à utiliser dans ces cas se trouve à une distance précise de la première lentille du système (appareillage) couplé au laser. La distance exacte du laser par rapport à la lentille est respectée du fait de placer le laser dans une coiffe en forme de douille sur laquelle est placé à ajustement serré un capot qui est muni de la lentille. Du fait de rapprocher la coiffe et le capot il est possible d'établir la distance correcte désirée entre le laser et la lentille. Etant donné que les parois coopérantes appartenant à la coiffe et au capot et établissant un ajustement serré sont revêtues d'une couche d'indium, ces parois glisseront souplement l'une sur l'autre lors du réglage de la distance. Application : télécommunication par voie optique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7806569,A NL178376C (nl) | 1978-06-19 | 1978-06-19 | Koppelelement met een lichtbron en een lens. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2429443A1 true FR2429443A1 (fr) | 1980-01-18 |
FR2429443B1 FR2429443B1 (fr) | 1986-01-03 |
Family
ID=19831060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7915469A Expired FR2429443B1 (fr) | 1978-06-19 | 1979-06-15 | Element de couplage, muni d'une source lumineuse et d'une lentille |
Country Status (16)
Country | Link |
---|---|
US (1) | US4295152A (fr) |
JP (1) | JPS5814755B2 (fr) |
AR (1) | AR221728A1 (fr) |
AU (1) | AU520083B2 (fr) |
BE (1) | BE877064A (fr) |
BR (1) | BR7903821A (fr) |
CA (1) | CA1127895A (fr) |
CH (1) | CH648130A5 (fr) |
DE (1) | DE2924119C2 (fr) |
DK (1) | DK146307C (fr) |
ES (1) | ES481613A1 (fr) |
FR (1) | FR2429443B1 (fr) |
GB (1) | GB2023928B (fr) |
IT (1) | IT1121586B (fr) |
NL (1) | NL178376C (fr) |
SE (1) | SE440294B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021473A1 (fr) * | 1979-05-31 | 1981-01-07 | Koninklijke Philips Electronics N.V. | Elément de couplage comportant une source de lumière et un élément en forme de lentille |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5723293A (en) * | 1980-07-18 | 1982-02-06 | Canon Inc | Semiconductor laser device |
US4355321A (en) * | 1981-02-02 | 1982-10-19 | Varian Associates, Inc. | Optoelectronic assembly including light transmissive single crystal semiconductor window |
US4399453A (en) * | 1981-03-23 | 1983-08-16 | Motorola, Inc. | Low thermal impedance plastic package |
JPS5873170A (ja) * | 1981-10-27 | 1983-05-02 | Fujitsu Ltd | 半導体発光装置 |
JPS58145169A (ja) * | 1982-02-23 | 1983-08-29 | Nec Corp | 光半導体装置 |
US4483389A (en) * | 1982-03-10 | 1984-11-20 | International Business Machines Corporation | Telescoping thermal conduction element for semiconductor devices |
FR2526176A1 (fr) * | 1982-04-29 | 1983-11-04 | Thomson Csf | Procede d'assemblage d'un dispositif optique contenant un laser semi-conducteur, dispositif et banc de montage de mise en oeuvre |
NL8303932A (nl) * | 1982-11-17 | 1984-06-18 | Pioneer Electronic Corp | Opneeminrichting voor optische plaat. |
DE3300902C2 (de) * | 1983-01-13 | 1985-01-10 | Hewlett-Packard GmbH, 7030 Böblingen | Zylindrisches Gehäuse für ein lichtemittierendes Halbleiterelement |
JPS6042890A (ja) * | 1983-08-18 | 1985-03-07 | Mitsubishi Electric Corp | 面発光形半導体レ−ザ及びその製造方法 |
JPS6043889A (ja) * | 1983-08-22 | 1985-03-08 | Hitachi Ltd | 光ファイバー付レーザーダイオード装置の組立方法 |
NL8303316A (nl) * | 1983-09-28 | 1985-04-16 | Philips Nv | Werkwijze voor het vervaardigen van een inrichting voor het uitzenden van licht. |
DE3413748A1 (de) * | 1984-04-12 | 1985-10-17 | Telefunken electronic GmbH, 7100 Heilbronn | Optisches system |
US4650285A (en) * | 1984-04-20 | 1987-03-17 | Motorola, Inc. | Hot alignment assembly method for optoelectronic packages |
NL8403535A (nl) * | 1984-11-21 | 1986-06-16 | Philips Nv | Inrichting voor het optisch koppelen van een stralingsbron aan een optische transmissievezel. |
JPS62172767A (ja) * | 1986-01-24 | 1987-07-29 | Mitsubishi Electric Corp | 光半導体装置 |
US4763335A (en) * | 1986-03-04 | 1988-08-09 | The Charles Stark Draper Laboratory, Inc. | Laser diode acoustic noise reduction |
KR890002811B1 (ko) * | 1986-11-04 | 1989-07-31 | 삼성전자 주식회사 | 히트 싱크를 겸한 과전류 파괴방지용 집적회로를 내장한 발광소자 패키지 |
FR2607626B1 (fr) * | 1986-11-28 | 1989-02-03 | Radiotechnique Compelec | Embase comportant un micro-composant opto-electronique |
JPH01179112A (ja) * | 1988-01-08 | 1989-07-17 | Ricoh Co Ltd | 半導体レーザー装置 |
JP2682641B2 (ja) * | 1988-06-03 | 1997-11-26 | 株式会社リコー | 半導体レーザー光源装置 |
US4948221A (en) * | 1988-08-30 | 1990-08-14 | Eastman Kodak Company | Athermalized optical head |
JPH02249327A (ja) * | 1989-03-23 | 1990-10-05 | Matsushita Electric Ind Co Ltd | 自動追尾装置及び自動追尾方法 |
GB2229856B (en) * | 1989-03-31 | 1993-04-21 | Stc Plc | Electro-optic transducer assembly |
US5255333A (en) * | 1989-08-09 | 1993-10-19 | Siemens Aktiengesellschaft | Opto-electronic transducer arrangement having a lens-type optical coupling |
US4993801A (en) * | 1989-12-27 | 1991-02-19 | Eastman Kodak Company | Optical head |
EP0454174B1 (fr) * | 1990-04-27 | 1997-03-05 | Omron Corporation | Dispositif semi-conducteur électroluminescent comprenant une lentille en échelon de Fresnel |
JPH04133480A (ja) * | 1990-09-26 | 1992-05-07 | Nec Corp | 光半導体装置用ステム |
US5111522A (en) * | 1991-02-19 | 1992-05-05 | At&T Bell Laboratories | Optical package with reduced deflection of the optical signal path |
US5214292A (en) * | 1991-08-14 | 1993-05-25 | Mission Research Corporation | Dynamic infrared scene display |
FR2682194B1 (fr) * | 1991-10-08 | 1994-11-18 | Thomson Csf | Regle d'interconnexion optique. |
DE4305633A1 (de) * | 1992-02-24 | 1993-10-07 | Valeo Vision | Verbesserung an Linsen-Scheinwerfern |
US5302778A (en) * | 1992-08-28 | 1994-04-12 | Eastman Kodak Company | Semiconductor insulation for optical devices |
DE4342840C2 (de) * | 1993-12-10 | 1995-09-28 | Siemens Ag | Elektrooptisches Modul |
DE19702573C2 (de) * | 1997-01-24 | 2003-11-13 | Sick Ag | Optische Einrichtung mit einer justierbaren Haltevorrichtung |
US6198580B1 (en) | 1998-08-17 | 2001-03-06 | Newport Corporation | Gimballed optical mount |
US6516130B1 (en) | 1998-12-30 | 2003-02-04 | Newport Corporation | Clip that aligns a fiber optic cable with a laser diode within a fiber optic module |
US6996506B2 (en) | 1999-02-23 | 2006-02-07 | Newport Corporation | Process and device for displacing a moveable unit on a base |
FR2790115B1 (fr) | 1999-02-23 | 2001-05-04 | Micro Controle | Procede et dispositif pour deplacer un mobile sur une base montee elastiquement par rapport au sol |
US6511035B1 (en) | 1999-08-03 | 2003-01-28 | Newport Corporation | Active vibration isolation systems with nonlinear compensation to account for actuator saturation |
AUPR245601A0 (en) * | 2001-01-10 | 2001-02-01 | Silverbrook Research Pty Ltd | An apparatus (WSM09) |
US6655840B2 (en) | 2001-02-13 | 2003-12-02 | Newport Corporation | Stiff cross roller bearing configuration |
US6541800B2 (en) * | 2001-02-22 | 2003-04-01 | Weldon Technologies, Inc. | High power LED |
US6601524B2 (en) | 2001-03-28 | 2003-08-05 | Newport Corporation | Translation table with a spring biased dovetail bearing |
US6791058B2 (en) | 2001-04-25 | 2004-09-14 | Newport Corporation | Automatic laser weld machine for assembling photonic components |
US6568666B2 (en) | 2001-06-13 | 2003-05-27 | Newport Corporation | Method for providing high vertical damping to pneumatic isolators during large amplitude disturbances of isolated payload |
US6619611B2 (en) | 2001-07-02 | 2003-09-16 | Newport Corporation | Pneumatic vibration isolator utilizing an elastomeric element for isolation and attenuation of horizontal vibration |
US6966535B2 (en) | 2002-05-07 | 2005-11-22 | Newport Corporation | Snubber for pneumatically isolated platforms |
US7320455B2 (en) | 2003-10-24 | 2008-01-22 | Newport Corporation | Instrumented platform for vibration-sensitive equipment |
US8231098B2 (en) | 2004-12-07 | 2012-07-31 | Newport Corporation | Methods and devices for active vibration damping of an optical structure |
JP2007048832A (ja) * | 2005-08-08 | 2007-02-22 | Mitsubishi Electric Corp | 光半導体デバイス |
JP4765563B2 (ja) * | 2005-11-07 | 2011-09-07 | セイコーエプソン株式会社 | 光モジュール |
DE102006027207A1 (de) * | 2006-02-01 | 2007-08-02 | Zumtobel Lighting Gmbh | Leuchte mit einem kastenförmigen Leuchtengehäuse und einem Lichtaustrittselement |
EP1870022B1 (fr) | 2006-06-22 | 2016-05-11 | W & H Dentalwerk Bürmoos GmbH | Poignée medical avec dispositif d'eclairage et procédé de fabrication |
JP2010034386A (ja) * | 2008-07-30 | 2010-02-12 | Fibest Ltd | 光半導体装置 |
DE102010029227A1 (de) * | 2010-05-21 | 2011-11-24 | Osram Gesellschaft mit beschränkter Haftung | Leuchtvorrichtung |
DE102011018931A1 (de) * | 2011-04-28 | 2012-10-31 | Bartenbach Holding Gmbh | Linse, Leuchte mit einer solchen Linse und Verfahren zur Herstellung einer solchen Leuchte |
KR102076339B1 (ko) * | 2013-03-13 | 2020-02-11 | 삼성전자주식회사 | 반도체 패키지 및 그 제조방법 |
CN104133280A (zh) * | 2013-05-03 | 2014-11-05 | 张永昇 | 光学元件的盖体 |
JP6394161B2 (ja) * | 2014-08-06 | 2018-09-26 | 日亜化学工業株式会社 | 発光装置及び光源モジュール |
JP2021027136A (ja) * | 2019-08-02 | 2021-02-22 | CIG Photonics Japan株式会社 | 光モジュール |
DE102021120256B3 (de) | 2020-08-28 | 2021-12-09 | Ifm Electronic Gmbh | Lasermodul mit einer Linsenhalterung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3805347A (en) * | 1969-12-29 | 1974-04-23 | Gen Electric | Solid state lamp construction |
US3816847A (en) * | 1972-05-19 | 1974-06-11 | Nippon Electric Co | Light-sensible semiconductor device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB697851A (en) * | 1950-06-06 | 1953-09-30 | British Thomson Houston Co Ltd | Improvements relating to the utilisation of the photo-electric effect in semi-conductors |
US3946416A (en) * | 1973-04-24 | 1976-03-23 | The United States Of America As Represented By The Secretary Of The Army | Low impedance diode mounting structure and housing |
US3999841A (en) * | 1974-08-19 | 1976-12-28 | Gte Laboratories Incorporated | Method for forming an optical fiber connector |
JPS5162771U (fr) * | 1974-11-12 | 1976-05-18 | ||
JPS5190688U (fr) * | 1975-01-20 | 1976-07-20 | ||
US4119363A (en) * | 1976-03-18 | 1978-10-10 | Bell Telephone Laboratories Incorporated | Package for optical devices including optical fiber-to-metal hermetic seal |
GB1575918A (en) * | 1976-12-14 | 1980-10-01 | Standard Telephones Cables Ltd | Fibre optics |
GB1545093A (en) * | 1976-12-14 | 1979-05-02 | Standard Telephones Cables Ltd | Laser systems |
US4144541A (en) * | 1977-01-27 | 1979-03-13 | Electric Power Research Institute, Inc. | Light-activated semiconductor device package unit |
US4182545A (en) * | 1977-05-27 | 1980-01-08 | Harris Corporation | Optical coupler system |
-
1978
- 1978-06-19 NL NLAANVRAGE7806569,A patent/NL178376C/xx not_active IP Right Cessation
-
1979
- 1979-05-31 AR AR276758A patent/AR221728A1/es active
- 1979-06-01 US US06/044,611 patent/US4295152A/en not_active Expired - Lifetime
- 1979-06-12 AU AU47989/79A patent/AU520083B2/en not_active Ceased
- 1979-06-14 CA CA329,740A patent/CA1127895A/fr not_active Expired
- 1979-06-15 CH CH5635/79A patent/CH648130A5/de not_active IP Right Cessation
- 1979-06-15 FR FR7915469A patent/FR2429443B1/fr not_active Expired
- 1979-06-15 DE DE2924119A patent/DE2924119C2/de not_active Expired
- 1979-06-15 IT IT23642/79A patent/IT1121586B/it active
- 1979-06-15 GB GB7920847A patent/GB2023928B/en not_active Expired
- 1979-06-15 SE SE7905285A patent/SE440294B/sv not_active IP Right Cessation
- 1979-06-15 DK DK250979A patent/DK146307C/da not_active IP Right Cessation
- 1979-06-16 ES ES481613A patent/ES481613A1/es not_active Expired
- 1979-06-16 JP JP54075194A patent/JPS5814755B2/ja not_active Expired
- 1979-06-18 BR BR7903821A patent/BR7903821A/pt unknown
- 1979-06-18 BE BE0/195811A patent/BE877064A/fr not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3805347A (en) * | 1969-12-29 | 1974-04-23 | Gen Electric | Solid state lamp construction |
US3816847A (en) * | 1972-05-19 | 1974-06-11 | Nippon Electric Co | Light-sensible semiconductor device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021473A1 (fr) * | 1979-05-31 | 1981-01-07 | Koninklijke Philips Electronics N.V. | Elément de couplage comportant une source de lumière et un élément en forme de lentille |
Also Published As
Publication number | Publication date |
---|---|
SE7905285L (sv) | 1979-12-20 |
AR221728A1 (es) | 1981-03-13 |
SE440294B (sv) | 1985-07-22 |
DK146307C (da) | 1984-02-06 |
FR2429443B1 (fr) | 1986-01-03 |
CH648130A5 (de) | 1985-02-28 |
JPS5814755B2 (ja) | 1983-03-22 |
BE877064A (fr) | 1979-12-18 |
NL7806569A (nl) | 1979-12-21 |
DE2924119A1 (de) | 1979-12-20 |
NL178376C (nl) | 1986-03-03 |
US4295152A (en) | 1981-10-13 |
JPS552296A (en) | 1980-01-09 |
GB2023928A (en) | 1980-01-03 |
BR7903821A (pt) | 1980-02-20 |
NL178376B (nl) | 1985-10-01 |
GB2023928B (en) | 1982-11-24 |
AU4798979A (en) | 1980-01-03 |
DK146307B (da) | 1983-08-29 |
IT1121586B (it) | 1986-04-02 |
AU520083B2 (en) | 1982-01-14 |
IT7923642A0 (it) | 1979-06-15 |
DE2924119C2 (de) | 1983-04-28 |
DK250979A (da) | 1979-12-20 |
CA1127895A (fr) | 1982-07-20 |
ES481613A1 (es) | 1980-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2429443A1 (fr) | Element de couplage, muni d'une source lumineuse et d'une lentille | |
EA200000420A1 (ru) | Устройство для получения динамичного изображения с целью отображения | |
DK0848276T3 (da) | Ekstra linser til briller | |
FR2353867A1 (fr) | Systeme de transmission optique element de couplage pour ce systeme et lentille convenant pour cet element de couplage | |
EP1073280A3 (fr) | Dispositif de projection | |
FR2551382B1 (fr) | Procede et dispositif pour le surfacage d'une lentille optique | |
SE0202949L (sv) | Optisk registreringsapparat och metod därav | |
FR2436404A1 (fr) | Element de derivation, notamment pour systemes de transmission optique d'informations | |
FR2504344B1 (fr) | Circuits de sources de lumiere pour telecommunications optiques | |
FR2321377A1 (fr) | Procede pour la reproduction d'une surface optique courbe sur un element optique et element, tel que lentille optique, ainsi obtenu | |
DE3688662D1 (de) | Optisches sichtgeraet mit bildaufspaltung. | |
FR2380563A1 (fr) | Systeme optique a champ annulaire pour appareils photographiques | |
FR2642853B1 (fr) | Monture interceptrice de lumiere pour lentille | |
SE8500893D0 (sv) | Multiple function camera | |
JPS53140A (en) | Scanning optical system | |
JPS54155033A (en) | Device for mounting reproducing original picture for photographic camera | |
KR840007462A (ko) | 광도체의 수광단을 렌즈의 초점에 맞추기 위한 방법 및 장치 | |
KR900700933A (ko) | 홀로그램에 영상을 재현시킴에 있어서 작은 반점의 찍힘을 감소시키거나 제거시키는 방법 및 그 장치 | |
JPS5971322U (ja) | 写真撮影装置 | |
SU678457A1 (ru) | Устройство дл оптического выравнивани изображени | |
DK161545C (da) | Fremgangsmaade og apparat til flertrins multireproduktion af et og samme transparente billede | |
EP0139600A3 (fr) | Dispositif pour la projection de decors pour prises de vues photographiques | |
FR2710165B1 (fr) | Viseur à image réelle notamment pour appareils photographiques. | |
JPS57144519A (en) | Optical system of viewfinder | |
JPS57118227A (en) | Shutter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |