GB2044948B - Power density of a laser beam heater - Google Patents
Power density of a laser beam heaterInfo
- Publication number
- GB2044948B GB2044948B GB7906938A GB7906938A GB2044948B GB 2044948 B GB2044948 B GB 2044948B GB 7906938 A GB7906938 A GB 7906938A GB 7906938 A GB7906938 A GB 7906938A GB 2044948 B GB2044948 B GB 2044948B
- Authority
- GB
- United Kingdom
- Prior art keywords
- laser beam
- power density
- beam heater
- heater
- density
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/073—Shaping the laser spot
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
- G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Laser Beam Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7906938A GB2044948B (en) | 1979-02-27 | 1979-02-27 | Power density of a laser beam heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7906938A GB2044948B (en) | 1979-02-27 | 1979-02-27 | Power density of a laser beam heater |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2044948A GB2044948A (en) | 1980-10-22 |
GB2044948B true GB2044948B (en) | 1983-10-05 |
Family
ID=10503475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7906938A Expired GB2044948B (en) | 1979-02-27 | 1979-02-27 | Power density of a laser beam heater |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2044948B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4475027A (en) * | 1981-11-17 | 1984-10-02 | Allied Corporation | Optical beam homogenizer |
EP0194820A3 (en) * | 1985-03-08 | 1988-10-19 | Oscar Moreno Gil | Radiation collector and reflector |
JPS6240986A (en) * | 1985-08-20 | 1987-02-21 | Fuji Electric Corp Res & Dev Ltd | Laser beam machining method |
US6752501B2 (en) | 2001-04-23 | 2004-06-22 | Dee E. Willden | Lensless laser focusing device |
EP1400832B1 (en) | 2002-09-19 | 2014-10-22 | Semiconductor Energy Laboratory Co., Ltd. | Beam homogenizer and laser irradiation apparatus and method of manufacturing semiconductor device |
US7327916B2 (en) | 2003-03-11 | 2008-02-05 | Semiconductor Energy Laboratory Co., Ltd. | Beam Homogenizer, laser irradiation apparatus, and method of manufacturing a semiconductor device |
SG137674A1 (en) | 2003-04-24 | 2007-12-28 | Semiconductor Energy Lab | Beam homogenizer, laser irradiation apparatus, and method for manufacturing semiconductor device |
US7245802B2 (en) | 2003-08-04 | 2007-07-17 | Semiconductor Energy Laboratory Co., Ltd. | Beam homogenizer, laser irradiation apparatus and method for manufacturing semiconductor device |
US7169630B2 (en) | 2003-09-30 | 2007-01-30 | Semiconductor Energy Laboratory Co., Ltd. | Beam homogenizer, laser irradiation apparatus, and method for manufacturing semiconductor device |
US7387954B2 (en) | 2004-10-04 | 2008-06-17 | Semiconductor Energy Laboratory Co., Ltd. | Beam homogenizer, laser irradiation apparatus, and method for manufacturing semiconductor device |
US7664365B2 (en) | 2004-10-27 | 2010-02-16 | Semiconductor Energy Laboratory Co., Ltd. | Beam homogenizer, and laser irradiation method, laser irradiation apparatus, and laser annealing method of non-single crystalline semiconductor film using the same |
-
1979
- 1979-02-27 GB GB7906938A patent/GB2044948B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2044948A (en) | 1980-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |