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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Engineering and Technology 36 8563 8255 2361 2189 84 9268

William L. Tonar publications per year

The chart shows the history of publications by William L. Tonar between 1992 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. William L. Tonar published across 30 years, from 1992 to 2021, averaging 4.9 papers a year. Output peaked at 14 publications in 2007. 7 of the 148 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1992 to 2021. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 2007. 1992: 1 publication 1993: 1 publication 1994: 0 publications 1995: 7 publications 1996: 2 publications 1997: 7 publications 1998: 6 publications 1999: 7 publications 2000: 9 publications 2001: 6 publications 2002: 0 publications 2003: 9 publications 2004: 10 publications 2005: 10 publications 2006: 1 publication 2007: 14 publications 2008: 5 publications 2009: 1 publication 2010: 3 publications 2011: 3 publications 2012: 3 publications 2013: 5 publications 2014: 2 publications 2015: 5 publications 2016: 3 publications 2017: 7 publications 2018: 3 publications 2019: 11 publications 2020: 6 publications 2021: 1 publication
1992 2021

148 publications in total across all disciplines

View publications per year as a table
William L. Tonar: publications per year, 1992 to 2021
Year Publications
1992 1
1993 1
1994 0
1995 7
1996 2
1997 7
1998 6
1999 7
2000 9
2001 6
2002 0
2003 9
2004 10
2005 10
2006 1
2007 14
2008 5
2009 1
2010 3
2011 3
2012 3
2013 5
2014 2
2015 5
2016 3
2017 7
2018 3
2019 11
2020 6
2021 1
Total 148
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William L. Tonar publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where William L. Tonar sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: publications, 38–47 to 804+. Vertical axis: number of scientists, 0 to 457. Most scientists, 457, have 148–157 publications. The last bar groups every scientist with 804 publications or more. The highlighted bar, 78–87 publications, is where this scientist sits. 38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38–47 publications 804+

This scientist: 84 publications — 4th percentile

4% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

View publications distribution as a table
Number of Engineering and Technology scientists by publication count, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
Publications Scientists This scientist
38–47 20
48–57 35
58–67 96
68–77 135
78–87 190 84
88–97 259
98–107 283
108–117 369
118–127 341
128–137 386
138–147 372
148–157 457
158–167 415
168–177 407
178–187 421
188–197 378
198–207 403
208–217 317
218–227 346
228–237 321
238–247 260
248–257 280
258–267 240
268–277 214
278–287 242
288–297 203
298–307 166
308–317 154
318–327 175
328–337 159
338–347 99
348–357 131
358–367 106
368–377 118
378–387 97
388–397 108
398–407 82
408–417 71
418–427 64
428–437 55
438–447 54
448–457 60
458–467 47
468–477 40
478–487 30
488–497 29
498–507 38
508–517 40
518–527 32
528–537 23
538–547 28
548–557 23
558–567 19
568–577 16
578–587 17
588–597 18
598–607 22
608–617 15
618–627 9
628–637 11
638–647 21
648–657 12
658–667 9
668–677 11
678–687 9
688–697 6
698–707 14
708–717 7
718–727 8
728–737 10
738–747 9
748–757 5
758–767 5
768–777 11
778–787 7
788–797 2
798–803 4
804+ 100
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William L. Tonar D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where William L. Tonar sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: D-Index, 30 to 107+. Vertical axis: number of scientists, 0 to 426. Most scientists, 426, have 42 D-Index. The last bar groups every scientist with 107 D-Index or more. The highlighted bar, 36 D-Index, is where this scientist sits. 30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 36 D-Index — 13th percentile

13% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

View D-Index distribution as a table
Number of Engineering and Technology scientists by D-index, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
D-Index Scientists This scientist
30 59
31 114
32 129
33 189
34 200
35 262
36 311 36
37 312
38 350
39 385
40 348
41 362
42 426
43 380
44 310
45 341
46 301
47 306
48 271
49 246
50 210
51 253
52 213
53 221
54 195
55 186
56 170
57 167
58 166
59 144
60 152
61 141
62 138
63 131
64 118
65 114
66 119
67 95
68 87
69 77
70 89
71 69
72 54
73 46
74 55
75 54
76 49
77 53
78 46
79 28
80 39
81 36
82 24
83 26
84 36
85 18
86 25
87 19
88 26
89 27
90 23
91 15
92 12
93 9
94 15
95 10
96 13
97 13
98 9
99 7
100 7
101 8
102 7
103 7
104 9
105 6
106 9
107+ 99
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Overview

What is he best known for?

The fields of study he is best known for:

  • Optics
  • Electrical engineering
  • Composite material

His primary scientific interests are in Electrochromism, Optics, Optoelectronics, Coating and Reflectivity. In general Electrochromism, his work in Electrochromic devices is often linked to Window linking many areas of study. His Reflector, Radiation and LED lamp study in the realm of Optics interacts with subjects such as Surface.

His Optoelectronics study integrates concerns from other disciplines, such as Layer and Substrate. His work carried out in the field of Coating brings together such families of science as Dichroic glass and Light source. His work deals with themes such as Signal light, Light level, Single layer and Reflector, which intersect with Reflectivity.

His most cited work include:

  • System for controlling exterior vehicle lights (539 citations)
  • Indicators and illuminators using a semiconductor radiation emitter package (390 citations)
  • Electrochromic rearview mirror assembly incorporating a display/signal light (321 citations)

What are the main themes of his work throughout his whole career to date?

William L. Tonar mostly deals with Optics, Optoelectronics, Electrochromism, Layer and Substrate. His work carried out in the field of Optics brings together such families of science as Signal light and Coating. Within one scientific family, William L. Tonar focuses on topics pertaining to Electronic engineering under Optoelectronics, and may sometimes address concerns connected to Electrical contacts.

His Electrochromism research includes elements of Reflector and Reflectivity. As a part of the same scientific study, William L. Tonar usually deals with the Reflectivity, concentrating on Glare and frequently concerns with Control circuit. His studies in Layer integrate themes in fields like Seal, Electrical conductor and Polymeric matrix.

He most often published in these fields:

  • Optics (44.00%)
  • Optoelectronics (38.40%)
  • Electrochromism (38.40%)

What were the highlights of his more recent work (between 2016-2020)?

  • Optoelectronics (38.40%)
  • Substrate (27.20%)
  • Image sensor (7.20%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Optoelectronics, Substrate, Image sensor, Layer and Electrochromism. His Optoelectronics study frequently links to related topics such as Nanofiber. His Substrate research focuses on Electrical conductor and how it relates to Coating.

Artificial intelligence, Computer vision and Optics are the main topics of his Image sensor study. He works mostly in the field of Layer, limiting it down to topics relating to Electrically conductive and, in certain cases, Piezoelectricity, Polymeric matrix and Reflective layer. William L. Tonar works in the field of Electrochromism, focusing on Electrochromic devices in particular.

Between 2016 and 2020, his most popular works were:

  • Vision correcting vehicle display (16 citations)
  • Vehicle display system providing depth information (6 citations)
  • Polarized electro-optic element (4 citations)

In his most recent research, the most cited papers focused on:

  • Electrical engineering
  • Optics
  • Composite material

Image sensor, Optics, Computer vision, Artificial intelligence and Polarizer are his primary areas of study. His studies deal with areas such as Filter and Electrowetting as well as Optics. His work on Computer vision is being expanded to include thematically relevant topics such as Computer graphics.

William L. Tonar has researched Polarizer in several fields, including Display device, Electrochromism and Liquid crystal. His Liquid crystal research is classified as research in Optoelectronics. His Optoelectronics study combines topics in areas such as Layer, Seal and Reflective layer.

Best Publications

  • System for controlling exterior vehicle lights

    Joseph S. Stam;Jon H. Bechtel;Spencer D. Reese;John K. Roberts

  • Vehicle automatic exterior light control

    Joseph Stam;Jon Bechtel;Spencer Reese;John Roberts

  • Indicators and illuminators using a semiconductor radiation emitter package

    John K. Roberts;Frederick T. Bauer;Joseph S. Stam;Timothy A. Bonardi

  • Electrochromic rearview mirror assembly incorporating a display/signal light

    William L. Tonar;Jeffrey A. Forgette;John S. Anderson;David J. Cammenga

  • Electrochromic rearview mirror incorporating a third surface metal reflector and a display/signal light

    Jeffrey A. Forgette;Harlan J. Byker;William L. Tonar;Frederick T. Bauer

  • Vehicular rearview mirror elements and assemblies incorporating these elements

    William L. Tonar;David J. Cammenga;John S. Anderson;David L. Poll

  • Electrochromic rearview mirror incorporating a third surface metal reflector

    Jeffrey A. Forgette;Harlan J. Byker;William L. Tonar;Frederick T. Bauer

  • Electrochromic layer and devices comprising same

    William L. Tonar;Harlan J. Byker;Kathy E. Siegrist;John S. Anderson

  • Electrochromic devices with thin bezel-covered edge

    William L. Tonar;Frederick T. Bauer;John W. Arnold;David J. Cammenga

  • Electrochromic rearview mirror incorporating a third surface partially transmissive reflector

    William L. Tonar;Jeffrey A. Forgette;John S. Anderson;Jon H. Bechtel

  • Vehicle rearview assembly including a high intensity display

    Danny L. Minikey;Mark W. Newton;Ethan J. Lee;William L. Tonar

  • Method of forming optically transparent seal and seal formed by said method

    William L. Tonar

  • Thin-Film Coatings, Electro-Optic Elements and Assemblies Incorporating These Elements

    William L. Tonar;John S. Anderson;Jeffrey A. Forgette;George A. Neuman

  • Electrochromic mirror with two thin glass elements and a gelled electrochromic medium

    Kevin L. Ash;William L. Tonar;Frederick T. Bauer

  • Electrochromic devices having no positional offset between substrates

    William L. Tonar;David J. Cammenga;David L. Poll;Kevin B. Kar

  • Variable reflectance mirrors and windows

    William L. Tonar;Frederick T. Bauer;Alan R. Watson

  • Electrochromic device having a self-cleaning hydrophilic coating

    William L. Tonar;John S. Anderson;David J. Cammenga

  • Electro-optic device including a low sheet resistance, high transmission transparent electrode

    Harlan J. Byker;Frederick T. Bauer;William L. Tonar

  • Electro-optical mirror incorporating third surface reflector

    John S Anderson;Frederick T Bauer;Jon H Bechtel;David J Cammenga

  • Image/information displays on electro-optic devices

    William L. Tonar;Lyman G. Wakeman

Frequent Co-Authors

Joseph S. Stam
Joseph S. Stam Gentex (United States)
Jon H. Bechtel
Jon H. Bechtel Gentex (United States)

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