# US 9,438,001 B2 · Laser device and method for producing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,438,001 B2 - Document ID: US9438001B2 - Status: Granted - Kind: B2 - Application number: 14/002,577 - Filed: 2012-02-29 - Published: 2013-12-19 - Granted: 2016-09-06 - Earliest claimed: 2011-03-03 - Assignees: OSRAM GmbH - Applicants: Andreas Rozynski - Inventors: Andreas Rozynski - Web page: https://patentgrep.com/patent/US9438001B2 ## CPC - H01S 3/005: {Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping (shaping laser beam for working metal or other materials B23K26/06; optical elements, systems or apparatus in general G02B)} - G02B 7/023: {permitting adjustment} - G02B 19/0014: {at least one surface having optical power} - G02B 19/0052: {the light source comprising a laser diode (coupling into light guides using intermediate optical elements G02B6/4204; semiconductor lasers having optical devices external to the laser cavity H01S5/005)} - G03B 21/2013: {Plural light sources} - G03B 21/2033: {LED or laser light sources} - H01S 3/02: Constructional details {(housings or packages of fibre lasers H01S3/06704)} - H01S 5/02253: using lenses - H01S 5/005: {Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping (H01S5/026, H01S5/18388 take precedence)} - H01S 5/02212: Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis - Y10T 29/49826: Assembling or joining - 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 - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A method for producing a laser device having a laser configured in order to emit a laser beam, a lens (31) which is positionally adjusted with respect to the laser, and a lens holder having at least two parts (2a, b, c) then following one another in a propagation direction (3) of the laser beam, of which at least two lens holder parts (2a, b, c) each have an end side oriented obliquely with respect to the propagation direction (3) and can be brought into a multiplicity of relative positions with respect to one another, respectively, with their end sides oriented obliquely with respect to the propagation direction (3) bearing on one another, wherein the length of the lens holder (1) in the propagation direction (3) is adjusted by selecting one of the relative positions. ## Claims ### Claim 1 A method for producing a laser device having a laser configured in order to emit a laser beam, comprising: providing a lens; providing a lens holder having at least two parts arranged one after another in a propagation direction of the laser beam, wherein one of said at least two lens holder parts is a tubular body having a through-opening such that said one lens holder part can be pushed onto a housing of the laser, and pushing said one lens holder part onto the housing; wherein said at least two lens holder parts each have an end side oriented obliquely with respect to the propagation direction, bringing said parts into any of a multiplicity of relative positions with respect to one another, respectively, with their end sides oriented obliquely with respect to the propagation direction bearing on one another; adjusting the length of the lens holder in the propagation direction by selecting one of the relative positions of said parts; attaching said lens to said lens holder; and blocking further positioning of the lens holder parts relative to each other. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein the smallest angle formed between the oblique end side of a lens holder part and the propagation direction is at least 60° and at most 89.5°. ### Claim 3 (depends on 1) The method as claimed in claim 1, wherein the relative positionability of the lens holder parts is blocked by a joint connection connecting the lens holder parts. ### Claim 4 (depends on 3) The method as claimed in claim 3 with a guide device used for mounting, wherein the lens holder parts are connected to one another during the length adaptation only by the guide device and the latter is removed after the joint connection has been produced. ### Claim 5 (depends on 1) The method as claimed in claim 1, wherein one of the lens holder parts is fixed on a housing of the laser by a joint connection. ### Claim 6 (depends on 1) The method as claimed in claim 1, wherein one of said at least two lens holder parts is fixed in its position relative to the laser and another of said at least two lens holder parts is positioned relative to the one lens holder part and relative to the laser for the length adaptation. ### Claim 7 (depends on 1) The method as claimed in claim 1, wherein a bearing for the lens is provided on an end side of a lens holder part opposite the oblique end side, and the lens is fixed on the bearing by a joint connection after position adjustment perpendicularly to the propagation direction. ### Claim 8 (depends on 7) The method as claimed in claim 7, wherein the lens together with the lens holder part is subsequently positionally adjusted along the propagation direction and the relative positionability of the lens holder parts is then blocked by a joint connection connecting the lens holder parts. ### Claim 9 (depends on 1) The method as claimed in claim 1, wherein the lens holder parts bear directly on one another with their end sides oriented obliquely with respect to the propagation direction. ### Claim 10 (depends on 1) The method as claimed in claim 1, wherein the end side, oriented obliquely with respect to the propagation direction, of a lens holder part is formed in a planar fashion. ### Claim 11 A laser device comprising: a laser configured in order to emit a laser beam; a lens; a lens holder having at least two parts arranged one after another in a propagation direction, wherein said at least two lens holder parts each have an end side oriented obliquely with respect to the propagation direction and these lens holder parts bear on one another with their end sides oriented obliquely with respect to the propagation direction, and wherein one of the lens holder parts is a tubular body having a through-opening such that said one lens holder part can be pushed onto a housing of the laser, and said one lens holder part is pushed onto the housing before the position adjustment of the lens. ### Claim 12 (depends on 11) A laser RGB module having a laser device as claimed in claim 11. ### Claim 13 (depends on 11) A projection device comprising the laser device as claimed in claim 11. ### Claim 14 (depends on 12) A projection device comprising the laser RGB module as claimed in claim 12.