DE102011078519A1 - Laser diode array for use in e.g. pico-projector, has elements fixed relative to bottom part along first axis and displaceable along second axis, and lenses used in elements and displaceable relative to elements along third axis - Google Patents
Laser diode array for use in e.g. pico-projector, has elements fixed relative to bottom part along first axis and displaceable along second axis, and lenses used in elements and displaceable relative to elements along third axis Download PDFInfo
- Publication number
- DE102011078519A1 DE102011078519A1 DE102011078519A DE102011078519A DE102011078519A1 DE 102011078519 A1 DE102011078519 A1 DE 102011078519A1 DE 102011078519 A DE102011078519 A DE 102011078519A DE 102011078519 A DE102011078519 A DE 102011078519A DE 102011078519 A1 DE102011078519 A1 DE 102011078519A1
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- Germany
- Prior art keywords
- axis
- along
- intermediate element
- laser diode
- lens
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
- H01S5/4093—Red, green and blue [RGB] generated directly by laser action or by a combination of laser action with nonlinear frequency conversion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/02208—Mountings; Housings characterised by the shape of the housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02253—Out-coupling of light using lenses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02255—Out-coupling of light using beam deflecting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
- H01S5/02326—Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
Abstract
Description
Technisches GebietTechnical area
Die Erfindung geht aus von Laserdiodenanordnungen, die eine Laserdiode und zumindest ein optisches Element haben. Die Position des Laserstahls ist am Ende der Montage des optischen Elements zu justieren. Derartige Laserdiodenanordnungen können in Pico-Projektoren bzw. Pico-Beamern verbaut sein.The invention is based on laser diode arrangements, which have a laser diode and at least one optical element. The position of the laser beam should be adjusted at the end of the assembly of the optical element. Such laser diode arrangements can be installed in pico projectors or pico beamers.
Stand der TechnikState of the art
Aus dem Stand der Technik ist eine Laserdiodenanordnung bekannt, bei der die Justagemöglichkeiten des Laserstahls auf zwei optische Elemente entkoppelt sind. Entlang einer ersten Achse wird die Fokuslage über eine Linse linear justiert. Eine Positionierung im Raum wird über eine weitere Glasscheibe mit zwei planparallelen Flächen justiert. Derartige Laserdiodenanordnung sind vorrichtungstechnisch aufwändig und ihre Justage ist ebenfalls aufwändig.From the prior art, a laser diode arrangement is known in which the adjustment possibilities of the laser beam are decoupled to two optical elements. Along a first axis, the focus position is linearly adjusted via a lens. Positioning in the room is adjusted via another pane of glass with two plane-parallel surfaces. Such laser diode arrangement are device-technically complex and their adjustment is also complex.
Darstellung der ErfindungPresentation of the invention
Die Aufgabe der vorliegenden Erfindung ist es, eine Laserdiodenanordnung und ein Verfahren zu deren Montage zu schaffen, bei der bzw. bei dem die Justage des Laserstahls vereinfacht ist.The object of the present invention is to provide a laser diode assembly and a method for its assembly, in which or in which the adjustment of the laser beam is simplified.
Diese Aufgabe wird gelöst durch eine Laserdiodenanordnung mit einer Laserdiode, die an einem Boden befestigt ist, und mit einem Zwischenelement, das relativ zum Boden entlang einer ersten Achse und entlang einer zweiten Achse verschiebbar ist. In das Zwischenelement ist eine Linse eingesetzt, die relativ zum Zwischenelement entlang einer dritten Achse verschiebbar ist. Damit ist die Positionierung der Linse, die eine einstückiges Optisches Element bildet einfach möglich und die Justage des Laserstrahls vereinfacht.This object is achieved by a laser diode assembly having a laser diode fixed to a bottom and an intermediate member slidable relative to the bottom along a first axis and along a second axis. In the intermediate element, a lens is inserted, which is displaceable relative to the intermediate element along a third axis. Thus, the positioning of the lens, which forms a one-piece optical element is easily possible and simplifies the adjustment of the laser beam.
Die erste Achse kann eine Fokusachse sein, entlang der ein Abstand der Linse zur Laserdiode justierbar ist.The first axis may be a focus axis along which a distance of the lens to the laser diode is adjustable.
Vorzugsweise sind die drei Achsen etwa senkrecht zueinander angeordnet.Preferably, the three axes are arranged approximately perpendicular to each other.
Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.Particularly advantageous embodiments can be found in the dependent claims.
Bei einer bevorzugten Weiterbildung haben das Zwischenelement und der Boden jeweils eine ebene Anlagefläche. Diese erstrecken sich entlang der ersten und der zweiten Achse. Über die beiden Anlageflächen liegen das Zwischenelement und der Boden aneinander an. Damit kann die Linse mit dem Zwischenelement auch um die dritte Achse gedreht und der Laserstrahl damit justiert werden.In a preferred embodiment, the intermediate element and the bottom each have a flat contact surface. These extend along the first and second axes. The intermediate element and the ground abut each other over the two contact surfaces. Thus, the lens with the intermediate element can also be rotated about the third axis and the laser beam can be adjusted with it.
Wenn die Anlagefläche des Bodens von einem Rand begrenzt ist, ist der Positionierbereich der Linse entlang der ersten und entlang der zweiten Achse durch Anschläge mechanisch begrenzt.If the abutment surface of the bottom is bounded by an edge, the positioning region of the lens along the first and along the second axis is mechanically limited by stops.
Dabei können die Anlageflächen des Bodens und des Zwischenelements in einer Vertiefung angeordnet sein, die von dem Rand umfasst ist. Damit ist der Justierbereich bei einer Drehung um die dritte Achse durch Anschläge mechanisch begrenzt.In this case, the abutment surfaces of the bottom and the intermediate element can be arranged in a recess which is encompassed by the edge. Thus, the adjustment region is mechanically limited by stops when rotated about the third axis.
Vorzugsweise ist die Linse einstückig mit einem Halteabschnitt gebildet, der teilweise in zwei entlang der dritten Achse verlaufende Vertiefungen bzw. Nuten des Zwischenelements eingesetzt ist. Dabei ist die Linse über den Halteabschnitt entlang der ersten und zweiten Achse und bei der Drehung um die dritte Achse formschlüssig im Halteabschnitt gehalten.Preferably, the lens is integrally formed with a holding portion which is partially inserted in two along the third axis extending recesses or grooves of the intermediate element. In this case, the lens is held in a form-fitting manner in the holding section via the holding section along the first and second axes and during rotation about the third axis.
Dabei wird es bevorzugt, wenn der Halteabschnitt etwa quaderförmig ist, wobei die beiden Nuten jeweils eine ebene Grundfläche haben, zwischen denen der Halteabschnitt eingespannt ist. Dadurch ist die Linse über ihren Halteabschnitt entlang der dritten Achse reibschlüssig im Zwischenelement gehalten, wenn die Justierbewegung entlang der dritte Achse beendet ist.It is preferred if the holding portion is approximately cuboid, wherein the two grooves each have a flat base, between which the holding portion is clamped. As a result, the lens is frictionally held in the intermediate element via its holding section along the third axis when the adjusting movement is completed along the third axis.
Wenn die Anlagefläche des Zwischenelements rahmenartig ist und eine Ausnehmung hat, deren Größe etwa derjenigen eines Querschnitts des Halteabschnitts entspricht, kann der Halteabschnitt entlang der dritten Achse bis zum Boden verschoben werden. Damit ist der Verstellweg der Linse in der entsprechenden Richtung maximiert.If the abutment surface of the intermediate element is frame-shaped and has a recess whose size approximately corresponds to that of a cross section of the holding portion, the holding portion along the third axis can be moved to the ground. This maximizes the displacement of the lens in the appropriate direction.
Wenn die erfindungsgemäße Laserdiodenanordnung zwei weiteren Kombinationen aus Laserdiode, Linse und Zwischenelement hat, und wenn die drei Kombinationen zusammen ein RGB-Modul bilden, bei dem jede Kombination eine der Farben rot, grün der blau emittiert, ist die Laserdiodenanordnung insbesondere als Pico-Projektor bzw. Pico-Beamer einsetzbar.If the laser diode arrangement according to the invention has two further combinations of laser diode, lens and intermediate element, and if the three combinations together form an RGB module in which each combination emits one of the colors red, green, blue, the laser diode array is in particular as pico-projector or Pico projector can be used.
Dabei kann die Anlagefläche des Bodens durchgängig sein und so als Anlagefläche für alle drei Zwischenelemente dienen.The contact surface of the floor can be continuous and thus serve as a contact surface for all three intermediate elements.
Das erfindungsgemäße Verfahren zur Montage einer vorbeschriebenen Laserdiodenanordnung hat die Schritte:
- – Niederhalten des Zwischenelements auf der Anlagefläche des Bodens insbesondere durch einen Niederhalter; und
- – Positionieren der Linse, vorzugsweise durch einen Greifer, z. B. Vakuumgreifer.
- - Holding down the intermediate element on the contact surface of the soil, in particular by a hold-down; and
- - Positioning of the lens, preferably by a gripper, z. B. vacuum gripper.
Das Positionieren der Linse entlang der ersten Achse und/oder entlang der zweiten Achse erfolgt durch Bewegen der Linse und durch Mitnehmen des Zwischenelements, während das Positionieren entlang der dritten Achse durch Bewegen der Linse entlang dem Zwischenelement erfolgt. Positioning of the lens along the first axis and / or along the second axis is accomplished by moving the lens and by entraining the intermediate member while positioning along the third axis by moving the lens along the intermediate member.
Vorzugsweise erfolgen vor dem Niederhalten die Schritte:
- – Einsetzten des Linse in das Zwischenelement; und
- – Bestücken der Linse zusammen mit dem Zwischenelement, insbesondere durch einen Bestückautomaten.
- Inserting the lens into the intermediate element; and
- - Equipping the lens together with the intermediate element, in particular by a placement.
Vorzugsweise erfolgen zusätzlich
- – ein Verkleben der Zwischenelements mit dem Boden; und
- – ein Verkleben der Linse mit dem Zwischenelement.
- - Gluing the intermediate element to the ground; and
- - Gluing the lens with the intermediate element.
Damit ist die Justage des Laserstrahls bzw. die Positionierung der Linse gesichert und fixiert.Thus, the adjustment of the laser beam and the positioning of the lens is secured and fixed.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Im Folgenden soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden. Die Figuren zeigen:In the following, the invention will be explained in more detail with reference to an embodiment. The figures show:
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Die drei Laserdioden
In einem Boden
Die
In
Die Anlagefläche
Nach einer erfolgreichen Positionierung der drei Linsen
Die Befestigung der jeweiligen Linse
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011078519A DE102011078519A1 (en) | 2011-07-01 | 2011-07-01 | Laser diode array for use in e.g. pico-projector, has elements fixed relative to bottom part along first axis and displaceable along second axis, and lenses used in elements and displaceable relative to elements along third axis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102011078519A DE102011078519A1 (en) | 2011-07-01 | 2011-07-01 | Laser diode array for use in e.g. pico-projector, has elements fixed relative to bottom part along first axis and displaceable along second axis, and lenses used in elements and displaceable relative to elements along third axis |
Publications (1)
Publication Number | Publication Date |
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DE102011078519A1 true DE102011078519A1 (en) | 2012-05-03 |
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DE102011078519A Ceased DE102011078519A1 (en) | 2011-07-01 | 2011-07-01 | Laser diode array for use in e.g. pico-projector, has elements fixed relative to bottom part along first axis and displaceable along second axis, and lenses used in elements and displaceable relative to elements along third axis |
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DE (1) | DE102011078519A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012213193A1 (en) * | 2012-07-26 | 2014-01-30 | Osram Gmbh | ARRANGEMENT OF OPTICAL SEMICONDUCTOR ELEMENTS |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10248769B3 (en) * | 2002-10-18 | 2004-07-15 | Osram Opto Semiconductors Gmbh | Optical device for geometric shaping of light beam profile e.g. for coupling laser radiation emitted by laser diode with input end of optical fibre |
JP2008026462A (en) * | 2006-07-19 | 2008-02-07 | Sumitomo Electric Ind Ltd | Optical module |
US20090153949A1 (en) * | 2005-09-13 | 2009-06-18 | Nec Corporation | Optical transmission module and manufacturing method of the same |
DE102007062047A1 (en) * | 2007-12-21 | 2009-07-16 | Osram Opto Semiconductors Gmbh | compact housing |
-
2011
- 2011-07-01 DE DE102011078519A patent/DE102011078519A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10248769B3 (en) * | 2002-10-18 | 2004-07-15 | Osram Opto Semiconductors Gmbh | Optical device for geometric shaping of light beam profile e.g. for coupling laser radiation emitted by laser diode with input end of optical fibre |
US20090153949A1 (en) * | 2005-09-13 | 2009-06-18 | Nec Corporation | Optical transmission module and manufacturing method of the same |
JP2008026462A (en) * | 2006-07-19 | 2008-02-07 | Sumitomo Electric Ind Ltd | Optical module |
DE102007062047A1 (en) * | 2007-12-21 | 2009-07-16 | Osram Opto Semiconductors Gmbh | compact housing |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012213193A1 (en) * | 2012-07-26 | 2014-01-30 | Osram Gmbh | ARRANGEMENT OF OPTICAL SEMICONDUCTOR ELEMENTS |
US9130336B2 (en) | 2012-07-26 | 2015-09-08 | Osram Gmbh | Arrangement of optical semiconductor elements |
DE102012213193B4 (en) | 2012-07-26 | 2023-09-14 | Coretronic Corporation | ARRANGEMENT OF OPTICAL SEMICONDUCTOR ELEMENTS |
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Effective date: 20121129 |