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(12) United States Patent (10) Patent No.: US 8,289,633 B2 Caldwell (45) Date of Patent: Oct

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(12) United States Patent (10) Patent No.: US 8,289,633 B2 Caldwell (45) Date of Patent: Oct USOO82896.33B2 (12) United States Patent (10) Patent No.: US 8,289,633 B2 Caldwell (45) Date of Patent: Oct. 16, 2012 (54) UV-VIS-IR IMAGING OPTICAL SYSTEMS 4,681.407 A 7, 1987 Mercado 4,702,569 A 10, 1987 Mercado et al. 4,704,008 A 11/1987 Mercado (76) Inventor: James Brian Caldwell, Petersburg, VA 4,704,011 A 11/1987 Mercado (US) 4,712,886 A 12/1987 Mercado 4,761,064 A 8, 1988 Mercado (*) Notice: Subject to any disclaimer, the term of this 4,762.404 A 8, 1988 Mercado patent is extended or adjusted under 35 4,765,727 A 8, 1988 Mercado 4,790,637 A 12/1988 Mercado U.S.C. 154(b) by 972 days. 4,832,472 A 5, 1989 Robb 4,929,071 A 5/1990 Mercado (21) Appl. No.: 12/217,579 5,000,548 A 3, 1991 Mercado 5,020,889 A 6, 1991 Mercado et al. (22) Filed: Jul. 7, 2008 5,103,341 A 4, 1992 Ulrich et al. 5,204,782 A 4/1993 Mercado et al. (65) Prior Publication Data 5,210,646 A 5/1993 Mercado et al. 5,305,138 A 4/1994 Freedenberg US 2009/O2962O1 A1 Dec. 3, 2009 5,305,150 A 4, 1994 Robb 5,699,202 A 12/1997 Yamamoto 5,754,345 A 5/1998 Yamamoto Related U.S. Application Data 5,798,874. A 8, 1998 Yamamoto Provisional application No. 60/961.329, filed on Jul. 5,914,823. A 6/1999 Yamamoto (60) 5,920,432 A * 7/1999 Suenaga et al. ............... 359/656 20, 2007. 6,208.459 B1 3/2001 Coon et al. (51) Int. C. * cited by examiner GO2B 9/12 (2006.01) Primary Examiner — James Greece (52) U.S. Cl. ........................................ 359/784; 359/642 (74) Attorney, Agent, or Firm — Opticus IP Law PLLC (58) Field of Classification Search .................. 359/784, 359/642 See application file for complete search history. (57) ABSTRACT Imaging optical systems having good transmission and that (56) References Cited are well corrected over the full 315 nm-1100 nm ultraviolet visible-infrared (UV-VIS-IR) wavelength band are disclosed. U.S. PATENT DOCUMENTS A wide variety of apochromatic and Superachromatic design 2,633.222 A 12/1953 Rosin et al. examples are presented. The imaging optical systems have a 3,348,896 A 10/1967 Betensky broad range of applications in fields where large-bandwidth 3,486,805 A 12/1969 Kobayashi imaging is called for, including but not limited to forensics, 3,490,825 A 1/1970 Takahashi 3,517,979 A 6, 1970 LOwenthal crime scene documentation, art conservation, forgery detec 3,652,151 A 3, 1972 Kawabe et al. tion, medicine, Scientific research, remote sensing, and fine 4,050,778 A 9, 1977 Fleischman art photography. 4.206.972 A 6, 1980 Dietzsch 4,387.970 A 6/1983 Brueggemann 13 Claims, 26 Drawing Sheets 101 103 105 107 109 111 U.S. Patent Oct. 16, 2012 Sheet 1 of 26 US 8,289,633 B2 E 3 Si U.S. Patent Oct. 16, 2012 Sheet 4 of 26 US 8,289,633 B2 NL A. 2 s 2 3 3 t f S 8 s D I s U.S. Patent Oct. 16, 2012 Sheet 7 of 26 US 8,289,633 B2 AC fy e to N ?yn AA as V frn - AA n AvA. É S St.1. S ES U.S. Patent Oct. 16, 2012 Sheet 8 of 26 US 8,289,633 B2 s | | | | | | | | | | O : | | | | | o | | | | | | | | | g3 :e 9 \| | | | | | | | | Iss 2 N V O in N | | | | | | | NN T | | | | | Is S | | N | | | | | Isc | | | | | | | | | To V o co t cN CP O O O O UOISSuSue r E C. S. N E O O CO cy () 9 O 5 - O y 9 in N: 9 CP O (Suojou) upfueleme/W U.S. Patent Oct. 16, 2012 Sheet 10 of 26 US 8,289,633 B2 =={{G/B/?TIITID eiz?un6|- U.S. Patent Oct. 16, 2012 Sheet 11 of 26 US 8,289,633 B2 S : (Suojou) unfueleme/W U.S. Patent Oct. 16, 2012 Sheet 13 of 26 US 8,289,633 B2 V S. 1. n S s w U.S. Patent Oct. 16, 2012 Sheet 14 of 26 US 8,289,633 B2 acy) | | | |s o | | | | g iss 13 5 is 2 in3 s c: NN isCY) N is | | | | c CN -l - on g 2P | | | | | | | | 5s v Y- o o N to Lo st c V O O O O O O O (Suojou) upfuelemenW U.S. Patent Oct. 16, 2012 Sheet 17 of 26 US 8,289,633 B2 N | | | | | | | |N| | | | | | | g 5: 8 N W | | | | | | c gS ||N| | | | | Is s | | | NN | | | g . " | | | | | NN T is | | | | | | | | |N | | | | | | | | | ve o co w cN 9 O O O O uOSSuSue E C E s cCN cosO o 2 - O) cN U) S E v. 9 O C. CD (SUOIOu) ufueleme/W U.S. Patent Oct. 16, 2012 (Uuu00/-Uuu00?7)SIA UuUu008=THE Selhuo enlee (uuu001|-UuuG19)HI-SIA-/\[\ UuUu008=THE Selhuo emihee U.S. Patent Oct. 16, 2012 Sheet 20 of 26 US 8,289,633 B2 701 7O2 703 704 | | Figure 7a US 8,289,633 B2 o/eun61-q/eun61 | O OO O O | O O O O 0 (SuOJOu) unfueleme/W U.S. Patent Oct. 16, 2012 Sheet 22 of 26 US 8,289,633 B2 O O CN O (Seme/W) Old O Melle/N-O-)eed U.S. Patent Oct. 16, 2012 Sheet 23 of 26 US 8,289,633 B2 AND & \\VN \\ : d A U.S. Patent Oct. 16, 2012 Sheet 24 of 26 ||/ uOSSuSue (Suojou) unfuelemenW U.S. Patent Oct. 16, 2012 Sheet 26 of 26 US 8,289,633 B2 T f-number k = 2.8 f-number k = 2.8; is. = 1:10 10 O O OS OS 0.4 0.4 O2 00 5 5 20 o s s 20 uran) un Zeiss Contax 25mm f/2.8 Zeiss Contax 60mm f/2.8 T f-number k = 2.8 T f-number k = 5.6; f = 300 mm O 0.4 O2 5 O 5 o 5 O 5 al Zeiss Contax300mm f/2.8 Zeiss Contax 100-300mm f/4-f/5.6 at 300mm f/5/6 Figure9 US 8,289,633 B2 1. 2 UV-VIS-R MAGING OPTICAL SYSTEMS ency or both. Examples include U.S. Pat. Nos. 4.206.972: 4,681407; 4,704,011; 4,712,886; 4,832,472: 4,929,071 and CLAIM OF PRIORITY 6,208,459. Finally, there are optical designs that are corrected from the This application claims priority under 35 USC S119(e) near-UV through the near-IR, but are not suited for use for the from U.S. Provisional Patent Application Ser. No. 60/961,329 shorter wavelengths in the UVA waveband ranging from 315 filed on Jul. 20, 2007, which patent application is incorpo nm up to about 350 nm. The reason for this shortcoming is rated by reference herein. either due to a lack of optical correction or a lack of transpar ency, or both. Examples include U.S. Pat. Nos. 4,702,569; FIELD OF THE INVENTION 10 4,704,008; 4,761,064; 4,762,404; 4,765,727; 4,790,637; 5,000,548; 5,020,889: 5,204,782: 5,210,646 and 5,305,150. The present invention relates to the field of broadband Even though some of the examples disclosed in these patents imaging optics, and more specifically relates to optical sys are color corrected at three, four, and even five wavelengths, tems that have good transmission and are well corrected over none have adequate color correction below about 350 nm and a very wide spectrum ranging approximately from 315 nm in 15 many have extremely high absorption in the UV due to the the ultraviolet through approximately 1100 nm in the infra glasses they use. red. Accordingly, there is a need for an optical system that has both good optical correction and good optical transparency BACKGROUND ART over the 315 nm through 1100 nm waveband. Recent advances in silicon-based image detectors have SUMMARY OF THE INVENTION opened up possibilities for photography in a very wide wave band ranging from the deep UV (<200 nm) all the way to The present invention is directed to optical systems that about 1100 nm in the near infrared. For many practical pho have good transmission and are well corrected over a broad tographic purposes the UV portion of this waveband is lim 25 spectrum ranging from about 315 nm through about 1100 nm. ited to about 315 nm by atmospheric absorption of sunlight. In order to achieve this, it is necessary to combine at least two The spectrum from 315 nm to 400 nm is commonly called the different optical materials in the design, and to ensure that all UVA spectrum. So, a very useful photographic spectrum will of these materials have an optical transmission in a 10 mm range from the onset of significant atmospheric transparency thickness greater than 0.1 at a wavelength of 0.31 microns. at about 315 nm all the way to the limit of silicon-based 30 In conventional visible band photographic optics for the 35 detector technology at about 1100 nm. A lens/camera system mm (24mmx36mm) format, it is not necessary to reduce the capable of high quality imagery over the 315 nm.-1100 nm axial secondary spectrum if the focal length is less than about waveband would have a broad range of applications, includ 75 mm.
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