# US 2018/0321035 A1 · Laser level > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0321035 A1 - Document ID: US20180321035A1 - Status: Published application - Kind: A1 - Application number: 15/605,228 - Filed: 2017-05-25 - Published: 2018-11-08 - Earliest claimed: 2017-05-03 - Assignees: Stanley Black & Decker, Inc. - Applicants: Stanley Black & Decker Inc. - Inventors: Jiang Jia YONG; Yu Feng WU - Web page: https://patentgrep.com/patent/US20180321035A1 ## CPC - G01C 15/004: {Reference lines, planes or sectors} - G02B 5/001: {Axicons, waxicons, reflaxicons} - G02B 27/106: {for splitting or combining a plurality of identical beams or images, e.g. image replication} - G02B 27/108: {for sampling a portion of a beam or combining a small beam in a larger one, e.g. wherein the area ratio or power ratio of the divided beams significantly differs from unity, without spectral selectivity} - G02B 27/14: operating by reflection only - 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 5/0071: {for beam steering, e.g. using a mirror outside the cavity to change the beam direction} - H01S 5/02: Structural details or components not essential to laser action - H01S 5/02212: Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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 ## Abstract A laser generating device including a housing and a laser module assembly. The laser module assembly is at least partially housed in the housing. The laser module includes a laser module. The laser module includes a laser generator, a transparent member and a cone member. The laser generator generates a laser beam which is directed towards a cone member. The cone member reflects the laser beam into a laser line. The transparent member has a generally cylindrical shape. The cone member includes a cone section including a reflecting surface and the cone section is located inside the transparent member. The cone member further includes a connection portion, the connection portion including a flange. The flange is located outside the transparent member at an outer surface of the transparent member. ## Claims ### Claim 1 A laser generating device, comprising: a housing; a laser module assembly, the laser module assembly at least partially housed in the housing, the laser module assembly including a laser module; wherein the laser module includes a laser generator, a transparent member and a cone member, the laser generator generating a laser beam which is directed towards the cone member and wherein the cone member reflects the laser beam into a laser line; wherein the transparent member has a generally cylindrical shape; wherein the cone member includes a cone section including a reflecting surface and the cone section is located inside the transparent member; wherein the cone member further includes a connection portion, the connection portion including a flange, wherein the flange is located outside the transparent member at an outer surface of the transparent member. ### Claim 2 (depends on 1) The laser generating device of claim 1, wherein the connection portion wraps around an end of the transparent member. ### Claim 3 (depends on 1) The laser generating device of claim 1, further comprising an adhesive between the flange and the outer surface of the transparent member. ### Claim 4 (depends on 1) The laser generating device of claim 1, wherein the transparent member is made of glass. ### Claim 5 (depends on 1) The laser generating device of claim 1, wherein the cone member is made of metal. ### Claim 6 (depends on 1) The laser generating device of claim 1, wherein the cone member is made of aluminum. ### Claim 7 (depends on 1) The laser generating device of claim 1, wherein the cone member is made as one piece. ### Claim 8 (depends on 1) The laser generating device of claim 1, wherein the cone section is made of aluminum. ### Claim 9 (depends on 1) The laser generating device of claim 1, wherein a coefficient of thermal expansion of the cone member is at least twice as much as a thermal expansion coefficient of the transparent member. ### Claim 10 (depends on 1) The laser generating device of claim 1, wherein a coefficient of thermal expansion of the cone section is at least twice as much as a thermal expansion coefficient of the transparent member. ### Claim 11 (depends on 1) The laser generating device of claim 1, wherein a coefficient of thermal expansion of the connection section is at least twice as much as a thermal expansion coefficient of the transparent member. ### Claim 12 A laser generating device, comprising: a housing; a laser module assembly, the laser module assembly at least partially housed in the housing, the laser module assembly including a pendulum and a laser module on the pendulum; wherein the laser module includes a laser generator, a transparent member and a cone member, the laser generator generating a laser beam which is directed towards the cone member; wherein the cone member is one integral piece and comprises a connection section and a cone section, the cone section having a reflective surface, wherein the reflective surface reflects the laser beam into a laser line which exits the housing and is configured to project on a surface; wherein the transparent member has a generally cylindrical shape with an inner surface, and outer surface opposite the inner surface; wherein the reflective surface is located inside the transparent member and reflects the laser beam from inside of the transparent member out through the transparent member; and wherein the connection section connects the cone member to the transparent member and wherein the connection section wraps around an end of the transparent member and includes a flange which is disposed around a portion of the outer surface of the transparent. ### Claim 13 (depends on 12) The laser generating device of claim 12, wherein the transparent member comprises glass. ### Claim 14 (depends on 13) The laser generating device of claim 13, wherein the cone member comprises metal. ### Claim 15 (depends on 14) The laser generating device of claim 14, wherein at least the flange of the cone member undergoes thermal expansion and contraction at a rate at least 50% greater than the rate of thermal expansion and contraction of the portion of the outer surface of the transparent member around which the flange is disposed. ### Claim 16 (depends on 12) The laser generating device of claim 12, wherein at least the flange of the cone member undergoes thermal expansion and contraction at a rate at least 100% greater than the rate of thermal expansion and contraction of the portion of the outer surface of the transparent member around which the flange is disposed. ### Claim 17 A laser generating device, comprising: a housing; a laser module assembly, the laser module assembly at least partially housed in the housing, the laser module assembly including a pendulum assembly configured to rotate under the effects of gravity and a laser module on the pendulum assembly; wherein the laser module includes a laser generator, a transparent member and a cone member, the laser generator generating a laser beam which is directed towards the cone member; wherein the cone member is one integral piece and comprises a connection section and a cone section, the cone section having a reflective surface, wherein the reflective surface reflects the laser beam into a laser line which exits the housing and is configured to project on an external surface outside of the laser generating device; wherein the transparent member has a generally cylindrical shape with an inner surface, and outer surface opposite the inner surface; wherein the reflective surface is located inside the transparent member and reflects the laser beam from the inside of the transparent member out through the transparent member; and wherein the connection section connects the cone member to the transparent member and wherein the connection section wraps around an end of the transparent member and includes a flange which is disposed outside the transparent member adjacent the outer surface; and wherein there is an adhesive between the flange and the outer surface of the transparent member which adheres the cone member to the transparent member. ### Claim 18 (depends on 17) The laser generating device of claim 17, wherein a coefficient of thermal expansion of the cone member is at least twice as much as a coefficient of thermal expansion of the transparent member. ### Claim 19 (depends on 17) The laser generating device of claim 17, wherein a coefficient of thermal expansion of the cone section is at least twice as much as a coefficient of thermal expansion of the transparent member. ### Claim 20 (depends on 17) The laser generating device of claim 17, wherein a coefficient of thermal expansion of the connection section is at least twice as much as a coefficient of thermal expansion of the transparent member.