JPS5443692A - Semiconductor laser condensing optical device - Google Patents
Semiconductor laser condensing optical deviceInfo
- Publication number
- JPS5443692A JPS5443692A JP11073677A JP11073677A JPS5443692A JP S5443692 A JPS5443692 A JP S5443692A JP 11073677 A JP11073677 A JP 11073677A JP 11073677 A JP11073677 A JP 11073677A JP S5443692 A JPS5443692 A JP S5443692A
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor laser
- lense
- condensed
- minute
- condenser
- 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.)
- Pending
Links
Landscapes
- Semiconductor Lasers (AREA)
- Lenses (AREA)
Abstract
PURPOSE: To enlarge the use range of semiconductor laser beam with utilizing the feature of it efficiently by converting semiconductor laser beam, which extends at a peculiar angle, to a square or a circle by a cylindrical lense and further to a minute beam by a condenser lense.
CONSTITUTION: Laser beam 1 which extends at an angle peculiar to semiconductor laser is condensed by the first condenser lense 2, and this flat beam is converted to an approximately square or circular image by cylindrical lenses 3 and 4, which have concaves and convexes respectively, and is focused onto point A. Next, this beam is condensed by condenser lense 5 to be a minute beam and is focused onto point B. Thus, the light beam from semiconductor laser is first extended, and next reduced to be focused. Therefore, the light beam can be condensed into an approximately circular minute spot size, and becomes a light source fit for an optical record ing and reproducing device, etc.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11073677A JPS5443692A (en) | 1977-09-13 | 1977-09-13 | Semiconductor laser condensing optical device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11073677A JPS5443692A (en) | 1977-09-13 | 1977-09-13 | Semiconductor laser condensing optical device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5443692A true JPS5443692A (en) | 1979-04-06 |
Family
ID=14543206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11073677A Pending JPS5443692A (en) | 1977-09-13 | 1977-09-13 | Semiconductor laser condensing optical device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5443692A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50120358A (en) * | 1974-03-04 | 1975-09-20 | ||
JPS5242741A (en) * | 1975-09-29 | 1977-04-02 | Western Electric Co | Lens system for converting laser radiation to spherical wave end and laser machining device utilizing same |
JPS53100841A (en) * | 1977-02-15 | 1978-09-02 | Canon Inc | Beam shaping optical system |
-
1977
- 1977-09-13 JP JP11073677A patent/JPS5443692A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50120358A (en) * | 1974-03-04 | 1975-09-20 | ||
JPS5242741A (en) * | 1975-09-29 | 1977-04-02 | Western Electric Co | Lens system for converting laser radiation to spherical wave end and laser machining device utilizing same |
JPS53100841A (en) * | 1977-02-15 | 1978-09-02 | Canon Inc | Beam shaping optical system |
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