JP2005521918A - 固定焦点の光学的に熱化された回折赤外線ズーム対物レンズ - Google Patents
固定焦点の光学的に熱化された回折赤外線ズーム対物レンズ Download PDFInfo
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- JP2005521918A JP2005521918A JP2003582568A JP2003582568A JP2005521918A JP 2005521918 A JP2005521918 A JP 2005521918A JP 2003582568 A JP2003582568 A JP 2003582568A JP 2003582568 A JP2003582568 A JP 2003582568A JP 2005521918 A JP2005521918 A JP 2005521918A
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- 239000000463 material Substances 0.000 claims abstract description 48
- 230000008859 change Effects 0.000 claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 6
- 150000004770 chalcogenides Chemical class 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000001931 thermography Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 210000001747 pupil Anatomy 0.000 description 3
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
- G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
- G02B15/143105—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged +-+
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- Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Filters (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Glass Compositions (AREA)
Abstract
Description
THIは表面の中央の厚さであり、
STOは開口ストップの表面位置を示す。
HX2は通常0のHV2の方位方向の光源位置を示す。
HWLは表面(λ)の設計波長である。
C68は第6オーダの非球面係数(B)
C69は第8オーダの非球面係数(C)
C70は第10オーダの非球面係数(D)
ASPは非球面表面型式を示す。
上記記載された指定データに関して:
FNOはレンズアセンブリのF−ナンバ−を示す。
Claims (12)
- ズ−ムレンズアセンブリの焦点への情景を見るための開口を通る光軸に沿って配置された複数のレンズ素子(12,14,16)を具備している断熱化されたズ−ムレンズアセンブリ(10)において、
前記レンズ素子は情景の方向から焦点へ前記光軸に沿って順に配置された第1のレンズ素子と、第2のレンズ素子と、第3のレンズ素子とを具備し、第1のレンズ素子(12)は第1の表面と、前記第1の表面とは反対側の第2の表面を備え正の倍率を有しており、第2のレンズ素子(14)は第1の表面と、前記第1の表面とは反対側の第2の表面を備え、負の倍率を有しており、第3のレンズ素子(16)は第1の表面を有しており、前記第1の表面とは反対側に第2の表面を備え、正の倍率を有しており、第1および第3のレンズ素子は第1の材料で構成され、前記第2のレンズ素子を構成している第2の材料とは異なる材料であり、前記第1の材料の温度変化に対する屈折率の変化(dn/dT)は予め定められた量だけ前記第2の材料の温度変化に対する屈折率の変化より少なく、前記第1のレンズ素子の前記第2の表面および第3のレンズ素子の前記第2の表面の少なくとも1つは回折表面である断熱化されたズ−ムレンズアセンブリ。 - 前記第1の材料はカルコゲニド赤外線透過ガラスを含み、前記第2の材料はGeを含んでいる請求項1記載のズ−ムレンズアセンブリ。
- 前記第1の材料はGe28Sb12Se60ガラスあるいはその等価物、TI−1173あるいはその等価物、あるいはAMTIR−3あるいはその等価物の1つを含んでいる請求項6記載の方法。
- 少なくとも第2のレンズ素子は広視野(WFOV)位置と狭視野(NFOV)位置との間で可動であり、温度範囲にわたるWFOV位置とNFOV位置との間の焦点の差は焦点のシフトが前記断熱化されたズ−ムレンズアセンブリの焦点深度内に入るようなものであり、さらに焦点に配置されたIR検出器を含んでいる請求項1記載のズ−ムレンズアセンブリ。
- 第1および第3のレンズ素子のdn/dTは175より小さく、第2のレンズ素子のdn/dTは375より大きく、あるいは第2のレンズ素子のdn/dTは第1および第3のレンズ素子のdn/dTの2倍以上であり、あるいは第2のレンズ素子のdn/dTは第1および第3のレンズ素子のdn/dTの3倍以上であり、あるいは第2のレンズ素子のdn/dTは約395であり、各第1および第3のレンズ素子のdn/dTは約58である請求項1記載のズ−ムレンズアセンブリ。
- ズームレンズアセンブリの情景から焦点へ延在する光軸に沿って配置された複数のレンズ素子(12,14,16)を含んでいる形式のズ−ムレンズアセンブリ(10)を断熱化する方法において、
第1の材料で構成され、正の倍率を有する1の第1および第3のレンズ素子(12,16) を前記光軸に沿って配置し、
前記光軸に沿って前記第1および第3のレンズ素子の間に挿入され、WFOV位置とNFOV位置との間の光軸に沿った可動な第2のレンズ素子(14)を配置し、第2のレンズ素子は負の倍率を有し、第2の材料で構成されており、前記第1の材料の温度変化(dn/dT)に対する屈折率の変化は予め決定された量だけ前記第2の材料の温度変化に対する屈折率の変化よりも少なく、
焦点のずれがズ−ムレンズアセンブリの焦点深度内の入るようにWFOVとNFOVとの間の焦点距離の温度変化を補正し、
前記第1および第3のレンズ素子の少なくとも1つの表面上に設けられている回折表面を使用して入射放射の色補正を行う断熱化方法。 - 前記第1の材料はカルコゲニド赤外線透過ガラスで構成され、前記第2の材料はゲルマニウムで構成されている請求項6記載の方法。
- 前記第1の材料はGe28Sb12Se60ガラスまたはその等価物、TI−1173またはその等価物、あるいはAMTIR−3またはその等価物の1つを含んでいる請求項6記載の方法。
- 第1および第3のレンズ素子のdn/dTは175より小さく、第2のレンズ素子のdn/dTは375より大きい請求項6記載の方法。
- 第2のレンズ素子のdn/dTは第1および第3のレンズ素子のdn/dTの2倍以上である請求項6記載の方法。
- 第2のレンズ素子のdn/dTは第1および第3のレンズ素子のdn/dTの3倍以上である請求項6記載の方法。
- 第2のレンズ素子のdn/dTは約395であり、各第1および第3のレンズ素子のdn/dTは約58である請求項6記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36951502P | 2002-04-01 | 2002-04-01 | |
US10/402,501 US6999243B2 (en) | 2002-04-01 | 2003-03-28 | Fixed focus, optically athermalized, diffractive infrared zoom objective lens |
PCT/US2003/009801 WO2003085437A2 (en) | 2002-04-01 | 2003-03-31 | Fixed focus, optically athermalized, diffractive infrared zoom objective lens |
Publications (2)
Publication Number | Publication Date |
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JP2005521918A true JP2005521918A (ja) | 2005-07-21 |
JP2005521918A5 JP2005521918A5 (ja) | 2006-03-02 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003582568A Pending JP2005521918A (ja) | 2002-04-01 | 2003-03-31 | 固定焦点の光学的に熱化された回折赤外線ズーム対物レンズ |
Country Status (8)
Country | Link |
---|---|
US (1) | US6999243B2 (ja) |
EP (1) | EP1405119B1 (ja) |
JP (1) | JP2005521918A (ja) |
AT (1) | ATE313811T1 (ja) |
DE (1) | DE60302849T2 (ja) |
NO (1) | NO336088B1 (ja) |
TW (1) | TWI243914B (ja) |
WO (1) | WO2003085437A2 (ja) |
Cited By (7)
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US7859747B2 (en) | 2006-03-01 | 2010-12-28 | Sumitomo Electric Industries, Ltd. | Infrared zoom lens and infrared camera |
JP2011186070A (ja) * | 2010-03-05 | 2011-09-22 | Tamron Co Ltd | 赤外線ズームレンズ |
JP2013015636A (ja) * | 2011-07-01 | 2013-01-24 | Tamron Co Ltd | 赤外線ズームレンズ |
JP2013114174A (ja) * | 2011-11-30 | 2013-06-10 | Tamron Co Ltd | 赤外線カメラ用レンズ |
US8643944B2 (en) | 2010-03-05 | 2014-02-04 | Tamron Co., Ltd | Infrared zooming lens |
JP2014109638A (ja) * | 2012-11-30 | 2014-06-12 | Tamron Co Ltd | 遠赤外線レンズ |
JP2017211581A (ja) * | 2016-05-27 | 2017-11-30 | 三菱電機株式会社 | 結像光学系 |
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CN100405115C (zh) * | 2005-08-22 | 2008-07-23 | 中国科学院长春光学精密机械与物理研究所 | 折衍混合偏振型红外热像仪光学成像装置 |
US7564617B2 (en) * | 2006-11-17 | 2009-07-21 | Abraham Reichert | Short infrared zoom lens system |
FR2910133B1 (fr) * | 2006-12-13 | 2009-02-13 | Thales Sa | Systeme d'imagerie ir2-ir3 bi-champ compact |
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US7672045B2 (en) * | 2007-08-23 | 2010-03-02 | Goodrich Corporation | Compact two-element infrared objective lens and IR or thermal sight for weapon having viewing optics |
JP2009063941A (ja) * | 2007-09-10 | 2009-03-26 | Sumitomo Electric Ind Ltd | 遠赤外線カメラ用レンズ、レンズユニット及び撮像装置 |
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DE102008050796A1 (de) * | 2008-10-08 | 2010-04-15 | Diehl Bgt Defence Gmbh & Co. Kg | Optik für eine Infrarotkamera |
US8817392B2 (en) | 2010-06-24 | 2014-08-26 | Bae Systems Information And Electronic Systems Integration Inc. | Wide field athermalized orthoscopic lens system |
US8294988B2 (en) | 2010-09-02 | 2012-10-23 | Raytheon Company | Dual field of view refractive optical system with external pupil and internal stabilization |
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US9007683B2 (en) | 2011-01-20 | 2015-04-14 | Fivefocal Llc | Dual element passively athemalized infrared imaging systems |
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2003
- 2003-03-28 US US10/402,501 patent/US6999243B2/en not_active Expired - Lifetime
- 2003-03-31 WO PCT/US2003/009801 patent/WO2003085437A2/en active IP Right Grant
- 2003-03-31 JP JP2003582568A patent/JP2005521918A/ja active Pending
- 2003-03-31 EP EP03718120A patent/EP1405119B1/en not_active Expired - Fee Related
- 2003-03-31 DE DE60302849T patent/DE60302849T2/de not_active Expired - Lifetime
- 2003-03-31 AT AT03718120T patent/ATE313811T1/de active
- 2003-09-30 TW TW092127134A patent/TWI243914B/zh not_active IP Right Cessation
- 2003-11-26 NO NO20035252A patent/NO336088B1/no not_active IP Right Cessation
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7859747B2 (en) | 2006-03-01 | 2010-12-28 | Sumitomo Electric Industries, Ltd. | Infrared zoom lens and infrared camera |
EP2309299A1 (en) | 2006-03-01 | 2011-04-13 | Sumitomo Metal Industries, Ltd. | Infrared zoom lens and infrared camera with three lens groups |
EP2309298A1 (en) | 2006-03-01 | 2011-04-13 | Sumitomo Metal Industries, Ltd. | Infrared zoom lens and infrared camera with three lens groups |
JP2011186070A (ja) * | 2010-03-05 | 2011-09-22 | Tamron Co Ltd | 赤外線ズームレンズ |
US8643944B2 (en) | 2010-03-05 | 2014-02-04 | Tamron Co., Ltd | Infrared zooming lens |
JP2013015636A (ja) * | 2011-07-01 | 2013-01-24 | Tamron Co Ltd | 赤外線ズームレンズ |
JP2013114174A (ja) * | 2011-11-30 | 2013-06-10 | Tamron Co Ltd | 赤外線カメラ用レンズ |
JP2014109638A (ja) * | 2012-11-30 | 2014-06-12 | Tamron Co Ltd | 遠赤外線レンズ |
JP2017211581A (ja) * | 2016-05-27 | 2017-11-30 | 三菱電機株式会社 | 結像光学系 |
Also Published As
Publication number | Publication date |
---|---|
EP1405119B1 (en) | 2005-12-21 |
US6999243B2 (en) | 2006-02-14 |
WO2003085437A3 (en) | 2004-01-15 |
US20040036982A1 (en) | 2004-02-26 |
DE60302849T2 (de) | 2006-08-17 |
ATE313811T1 (de) | 2006-01-15 |
DE60302849D1 (de) | 2006-01-26 |
TW200512478A (en) | 2005-04-01 |
NO20035252L (no) | 2003-11-26 |
NO336088B1 (no) | 2015-05-11 |
NO20035252D0 (no) | 2003-11-26 |
EP1405119A2 (en) | 2004-04-07 |
TWI243914B (en) | 2005-11-21 |
WO2003085437A2 (en) | 2003-10-16 |
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