JPS53132361A - Optical device - Google Patents
Optical deviceInfo
- Publication number
- JPS53132361A JPS53132361A JP4682577A JP4682577A JPS53132361A JP S53132361 A JPS53132361 A JP S53132361A JP 4682577 A JP4682577 A JP 4682577A JP 4682577 A JP4682577 A JP 4682577A JP S53132361 A JPS53132361 A JP S53132361A
- Authority
- JP
- Japan
- Prior art keywords
- optical device
- light beams
- diameter
- decreasing
- lens
- 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.)
- Granted
Links
Abstract
PURPOSE:To reduce the condensing spot diameter by a lens by reducing the product of the spreading angle of light beams and beam diameter without decreasing the power of the light beams by using a polarized beam spitter and a 1/2 wavelength plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52046825A JPS5935003B2 (en) | 1977-04-25 | 1977-04-25 | optical equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52046825A JPS5935003B2 (en) | 1977-04-25 | 1977-04-25 | optical equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53132361A true JPS53132361A (en) | 1978-11-18 |
JPS5935003B2 JPS5935003B2 (en) | 1984-08-25 |
Family
ID=12758094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52046825A Expired JPS5935003B2 (en) | 1977-04-25 | 1977-04-25 | optical equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5935003B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60172022A (en) * | 1984-02-17 | 1985-09-05 | Dainippon Screen Mfg Co Ltd | Exposing method of laser light beam |
US4634232A (en) * | 1983-02-01 | 1987-01-06 | Canon Kabushiki Kaisha | Light source device for close spacing of two light beams |
US4641920A (en) * | 1983-03-11 | 1987-02-10 | Canon Kabushiki Kaisha | Optical element having the function of changing the cross-sectional intensity distribution of a light beam |
US5381278A (en) * | 1991-05-07 | 1995-01-10 | Canon Kabushiki Kaisha | Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107052592B (en) * | 2017-05-23 | 2019-01-29 | 苏州德龙激光股份有限公司 | Double light beam laser system of processing and its method |
-
1977
- 1977-04-25 JP JP52046825A patent/JPS5935003B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4634232A (en) * | 1983-02-01 | 1987-01-06 | Canon Kabushiki Kaisha | Light source device for close spacing of two light beams |
US4641920A (en) * | 1983-03-11 | 1987-02-10 | Canon Kabushiki Kaisha | Optical element having the function of changing the cross-sectional intensity distribution of a light beam |
JPS60172022A (en) * | 1984-02-17 | 1985-09-05 | Dainippon Screen Mfg Co Ltd | Exposing method of laser light beam |
US5381278A (en) * | 1991-05-07 | 1995-01-10 | Canon Kabushiki Kaisha | Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS5935003B2 (en) | 1984-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0346844A3 (en) | Optical head apparatus | |
JPS5390949A (en) | Scanner | |
JPS5577147A (en) | Laser light beam diffusing unit for tempering | |
JPS51129244A (en) | Optical device for focusing light beam | |
JPS51113706A (en) | Optically focusing device for focusing radiation beam | |
JPS53132361A (en) | Optical device | |
JPS54134456A (en) | Semiconductor laser light source | |
ATE15110T1 (en) | LENS LARGE APERTURE. | |
JPS5410495A (en) | Laser working apparatus with reflector | |
JPS525540A (en) | Laser bundle magnifier | |
JPS53100841A (en) | Beam shaping optical system | |
JPS5371846A (en) | Optics to obtain equal direction spot from various direction light beam | |
JPS5413732A (en) | Light source device | |
JPS53147507A (en) | Focus position controller | |
JPS5348704A (en) | Optical signal regenerator | |
JPS53100843A (en) | Beam shaping optical system | |
JPS5750335A (en) | Optical information reproducer | |
JPS5572806A (en) | Contour display unit | |
JPS545393A (en) | Semiconductor laser with light beam shaping lens | |
JPS5417027A (en) | Image forming system | |
JPS51134996A (en) | Laser-utilizing processing device | |
JPS5411593A (en) | Method of boring metallic plate laser beam | |
JPS5472068A (en) | Optical processor | |
JPS53117448A (en) | Modulating optical system | |
JPS5220043A (en) | Optical mixer |