JP5930233B2 - 光源装置及び画像投影装置 - Google Patents
光源装置及び画像投影装置 Download PDFInfo
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- JP5930233B2 JP5930233B2 JP2014224334A JP2014224334A JP5930233B2 JP 5930233 B2 JP5930233 B2 JP 5930233B2 JP 2014224334 A JP2014224334 A JP 2014224334A JP 2014224334 A JP2014224334 A JP 2014224334A JP 5930233 B2 JP5930233 B2 JP 5930233B2
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- JP
- Japan
- Prior art keywords
- light emitting
- thz
- emitting element
- center frequency
- light
- 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.)
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- 230000003595 spectral effect Effects 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 15
- 238000001228 spectrum Methods 0.000 description 13
- 238000009826 distribution Methods 0.000 description 9
- 230000010287 polarization Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000005311 autocorrelation function Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0239—Combinations of electrical or optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Semiconductor Lasers (AREA)
Description
1.5THzであって、第1の発光素子群81の中心周波数f81cは、560THzである。なお、各発光素子群81〜83の中心周波数f81c〜f83cは、スペクトル分布において、スペクトル半値全幅の中心となる周波数(例えば、第1の発光素子群81の中心周波数f81cにおいては、f81c=f81a+(f81b−f81a)/2)としている。
1.5THzであって、第2の発光素子群82の中心周波数f82cは、564THzである。また、第3の発光素子群83のスペクトル半値全幅Δf83(=f83b−f83a)は、1.5THzであって、第3の発光素子群83の中心周波数f83cは、568THzである。
ただし、Kgはスペクトルの自己相関関数を表し、μは2つの異なる波長でのスペックルの相関関数を表し、Δνは周波数差を表す。
Claims (3)
- 複数の発光素子を備え、
前記複数の発光素子は、各発光素子の中心周波数ごとに複数の発光素子群に区分けされ、
前記発光素子群の中心周波数と隣接する他の発光素子群の中心周波数との中心周波数差は、前記複数の発光素子群におけるスペクトル半値全幅の平均値よりも大きく且つ11.4THzよりも小さい光源装置。 - 前記発光素子群の中心周波数と隣接する他の発光素子群の中心周波数との中心周波数差は、3.3THz以上であって且つ10.4THz以下である請求項1に記載の光源装置。
- 請求項1又は2に記載の光源装置を備え、
前記光源装置から出射される光を投射光として用いる画像投影装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014224334A JP5930233B2 (ja) | 2014-11-04 | 2014-11-04 | 光源装置及び画像投影装置 |
PCT/JP2015/080224 WO2016072319A1 (ja) | 2014-11-04 | 2015-10-27 | 光源装置及び画像投影装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014224334A JP5930233B2 (ja) | 2014-11-04 | 2014-11-04 | 光源装置及び画像投影装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016090779A JP2016090779A (ja) | 2016-05-23 |
JP5930233B2 true JP5930233B2 (ja) | 2016-06-08 |
Family
ID=55909045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014224334A Active JP5930233B2 (ja) | 2014-11-04 | 2014-11-04 | 光源装置及び画像投影装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5930233B2 (ja) |
WO (1) | WO2016072319A1 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4174989B2 (ja) * | 1999-11-22 | 2008-11-05 | ソニー株式会社 | 表示装置 |
CA2415142C (en) * | 2000-07-10 | 2012-03-20 | Corporation For Laser Optics Research | Systems and methods for speckle reduction through bandwidth enhancement |
WO2010029817A1 (ja) * | 2008-09-10 | 2010-03-18 | 日本電気株式会社 | 光源装置及び画像表示装置 |
-
2014
- 2014-11-04 JP JP2014224334A patent/JP5930233B2/ja active Active
-
2015
- 2015-10-27 WO PCT/JP2015/080224 patent/WO2016072319A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2016090779A (ja) | 2016-05-23 |
WO2016072319A1 (ja) | 2016-05-12 |
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