EP1356343A2 - Filtres optiques specifiques a une activite et dispositifs optiques utilisant de tels filtres - Google Patents

Filtres optiques specifiques a une activite et dispositifs optiques utilisant de tels filtres

Info

Publication number
EP1356343A2
EP1356343A2 EP02704240A EP02704240A EP1356343A2 EP 1356343 A2 EP1356343 A2 EP 1356343A2 EP 02704240 A EP02704240 A EP 02704240A EP 02704240 A EP02704240 A EP 02704240A EP 1356343 A2 EP1356343 A2 EP 1356343A2
Authority
EP
European Patent Office
Prior art keywords
spectral
window
background
eyewear
contrast
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.)
Withdrawn
Application number
EP02704240A
Other languages
German (de)
English (en)
Inventor
Alan W. Reichow
Karl Citek
Robert L. Yolton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nike International Ltd
Original Assignee
Nike Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/768,940 external-priority patent/US6631987B2/en
Application filed by Nike Inc filed Critical Nike Inc
Priority to EP10185967.6A priority Critical patent/EP2290432B1/fr
Publication of EP1356343A2 publication Critical patent/EP1356343A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection

Definitions

  • the invention pertains to optical filters for viewing a selected object with respect to a background and eyewear that include such filters.
  • Such vision protection typically reduces or eliminates the possibility of activity-specific injuries or activity-specific exposure to reagents, intense light fluxes, or light fluxes in particularly harmful wavelength ranges.
  • dark tinted lenses can be used to reduce exposure to intense light fluxes characteristic of welding, or goggles can be used to protect the eyes from injuries in sports such as basketball that involve risk of physical contact. While such protective eyewear can prevent eye injuries, the eyewear often interferes with or degrades various visual skills.
  • prior art eyewear can provide eye protection and enhance the visibility of a colored object
  • eyewear is typically unpleasant to wear because of the unnatural appearance of scenes viewed through the eyewear.
  • background surfaces can appear too dark because radiation at wavelengths reflected from background surfaces is attenuated by the eyewear.
  • a background can appear black.
  • color rendition with such eyewear is peculiar, and users of such eyewear find the appearance of common scenes unnatural. Users of such eyewear may also experience difficulty in accurately focusing on objects, thereby affecting depth perception and timing.
  • Optical filters and lenses for viewing a selected object have a spectral transmittance that includes an object-contrast spectral window and a background spectral window.
  • the object-contrast window corresponds to a spectral distribution of light reflected or emitted by the selected object.
  • the background window includes wavelengths corresponding to radiation received from a reflective or luminous background against which the object is viewed.
  • the filters have spectral transmittances that include a spectral-width window.
  • the background window includes a wavelength range from about 540 nm to about 560 nm or a wavelength range of from about 530 nm to about 570 nm.
  • the optical filters have a background window corresponding to a reflecting spectral region of vegetation.
  • the object-contrast window corresponds to a fluorescence spectrum of light emitted by the object.
  • object-contrast optical filters can include a spectral-width window configured to provide more natural appearing scenes as viewed with the filters and to provide a broader spectral bandwidth to the user's eye.
  • the spectral-width window includes wavelengths greater than about 610 nm.
  • Eyewear for enhanced viewing of an object with respect to a background include a frame and at least one lens configured to be placed with respect to a wearer's eyes so that the wearer looks through the lens when the eyewear is worn.
  • the lens defines a spectral transmittance having an object-contrast window and a background window.
  • the background window corresponds to a wavelength range in which vegetation is reflective.
  • the background window includes wavelengths between about 540 nm to about 560 nm, or other wavelength ranges.
  • eyewear include a lens having an object-contrast window that preferentially transmits, reflects, or otherwise directs light corresponding to a wavelength-conversion spectral power distribution to the wearer's eye.
  • the eyewear include a lens that defines a spectral-width window.
  • Eyewear include an optical filter that preferentially transmits light within an object-contrast window and a background window.
  • the object-contrast window corresponds to an object-specific reflectance window or an object-specific wavelength-conversion window.
  • Natural-contrast, enhanced-visibility eyewear include a lens having a spectral transmittance that has a background window and an enhanced-visibility window.
  • the lens is retained by a frame that situates the lens so that a wearer looks through the lens with the eyewear as worn.
  • the lens is a unitary lens and is situated by the frame so that a wearer views through the lens with both eyes with the eyewear as worn.
  • FIG. 1 is a graph of optical power reflected and emitted by a golf ball as a function of wavelength.
  • FIGS. 2A-2E are graphs of transmittance as a function of wavelength for optical filters configured for viewing of a golf ball.
  • FIG. 3 is a graph of reflectance spectra of chlorophyll a and chlorophyll b.
  • FIG. 4 is a perspective view of eyewear that includes lenses having spectral transmittances corresponding to the graph of FIG. 3.
  • optical filters that enhance object visibility while preserving the natural appearance of viewed scenes are described.
  • Such optical filters can be configured for a wide range of recreational, sporting, professional, and other activities.
  • filters and eyewear configured for golf are described.
  • a golf ball cover is configured to produce wavelength-converted light and the eyewear include lenses having an object-contrast spectral window corresponding to a spectral reflectance of the cover or a spectrum of wavelength-converted light emitted by the cover.
  • Golf balls are provided that have a cover that is configured to wavelength- convert light that is incident at a first wavelength or in a first wavelength range. The wavelength-converted light is emitted at longer wavelengths than the wavelength of the absorbed incident light. The wavelength-converted light has at least a portion corresponding to an object-contrast window of corresponding eyewear.
  • the golf balls have covers that include a fluorescent material that produces fluorescence in a spectral region corresponding to a spectral transmittance of a viewing filter.
  • a portion of the object- contrast window corresponds to a spectral region in which light is preferentially reflected by the cover.
  • Methods of enhancing object visibility with respect to a background include providing a contrast agent to the object to be viewed.
  • a light spectrum produced by the contrast agent defines an object-contrast spectral window.
  • An optical filter is provided that includes a spectral window corresponding to the object-contrast window, and a background window corresponding to a reflectance spectrum of the background.
  • the contrast agent is a wavelength- conversion agent, a colorant, or both.
  • the optical filter includes a spectral- width window that broadens the transmission spectrum of the filter.
  • the object- visibility window, the background window, and the spectral-width window include wavelengths from about 440 nm to about 470 nm, about 510 nm to about 580 nm, and about 600 nm to about 650 nm, respectively.
  • the windows include wavelengths between about 400 nm and about 700 nm.
  • a spectral power distribution 100 of radiation from a golf ball in outdoor illumination such as direct sunlight or other illumination conditions includes a blue-enhanced portion 102 located in a wavelength region near a wavelength ⁇ .
  • the blue-enhanced portion 102 can be produced by conversion of radiation within a range of wavelengths shorter than that of the portion 102 to radiation at wavelengths within the blue-enhanced portion 102.
  • Such wavelength- conversion can result from fluorescence, phosphorescence, or other processes.
  • any process in which radiation at a shorter wavelength is converted into radiation at a longer wavelength is referred to as a wavelength-conversion process.
  • a typical example of such a process is fluorescence in which radiation at a first wavelength is absorbed to produce radiation at a longer wavelength. Because the human eye is less sensitive to radiation at wavelengths shorter than the wavelengths of the blue-enhanced portion 102 than to radiation within the blue-enhanced portion 102, conversion of radiation from the shorter wavelengths into longer wavelength radiation tends to make the golf ball appear whiter and brighter.
  • the spectral power distribution of FIG. 1 corresponds to a golf ball that appears white and spectral power distributions for non- white golf balls can have additional spectral features characteristic of the golf ball's color.
  • Spectral power at wavelengths shorter than the conventional cutoff of human visual response at wavelengths of about 400 nm is not shown in FIG. 1. Radiation at these shorter wavelengths produces limited human visual response. Conversion of these shorter wavelengths into longer wavelengths by fluorescence or other wavelength-conversion process can produce radiation that makes an appreciable contribution to visual response. This conversion process can be enhanced by the selection of a golf ball cover that produces such wavelength-converted light or by incorporating suitable fluorescent, phosphorescent, or other wavelength-conversion agents into the golf ball cover. A typical wavelength-conversion agent produces a blue-enhanced region at a wavelength ⁇ B that is typically in the range between about 440-480 nm, but wavelength-conversion agents for other wavelength ranges can be used. If the golf ball (or other object of interest) need not appear white, colored wavelength-conversion agents can be used, such as colored fluorescent agents.
  • the spectral power distribution 100 illustrated in FIG. 1 is representative of the optical radiation from a golf ball under outdoor illumination conditions. More accurate spectral power distribution values depend on the exact illumination conditions. Typical illumination conditions include illumination from direct sunlight and overcast skies as well as illumination produced in deep shadows. Under these different illumination conditions, different spectral power distributions are produced. For example, an overcast sky typically produces a spectral power distribution having less total energy as well as relatively less energy at shorter (bluer) wavelengths. Nevertheless, the spectral power distributions associated with these varying illumination conditions have corresponding blue-enhanced portions produced by wavelength-conversion processes. Visual perception of a golf ball that produces the spectral power distribution of FIG.
  • the blue-enhanced portion 102 has excess blue spectral power relative to the ambient illumination and providing a blue transmitting filter therefore permits improve tracking and location of the golf ball. While preferentially transmitting the blue-enhanced portion of the spectral power distribution of FIG. 1 permits increased golf ball visibility under many conditions, the extent of this increased visibility depends on the background in which the golf ball is viewed. However, for common backgrounds encountered in golf such as fairway or putting surface grasses, preferential transmission of the blue enhanced component increases golf ball visibility. Therefore, wearing eyewear that includes lenses that preferentially transmit the blue enhanced portion permits the golfer to more readily follow the trajectory of a golf ball and to locate the golf ball after it has come to rest.
  • eyewear can increase golf ball visibility and permit easier tracking and location of a golf ball
  • altering the spectral power distribution of light transmitted to the golfer's eyes can produce scenes that appear unnatural or even disturbing to the golfer.
  • the golfer encounters many different backgrounds including blue skies, overcast skies, rock, sand, dirt, and vegetation, including putting surfaces, fairways, sand traps, and rough.
  • Eyewear that preferentially transmits the enhanced blue portion can produce an unnatural or disturbing appearance to all or some of these surroundings, and impair the golfer's concentration or perception. Such unnatural appearances can offset any performance advantage associated with increased golf ball visibility.
  • More natural appearing viewing can be obtained with an optical filter having a spectral transmittance 200 that is shown in FIG. 2A.
  • Such an optical filter provides improved golf ball visibility while maintaining a natural appearance of scenes viewed through such a filter.
  • a spectral region in which an optical filter transmits is referred to as a spectral window.
  • a width of a spectral window can be defined as a full width at about 50%, 25%, 10%o, or 5% of the maximum transmittance within the spectral window.
  • the spectral transmittance 200 includes a blue-transmitting spectral window 202 as well as a green-transmitting spectral window 204 and a red-transmitting spectral window 206. As shown in FIG.
  • the blue window 202 has a maximum spectral transmittance at a wavelength of about 460 nm, corresponding to a blue enhancement produced by fluorescence in the golf ball cover material or a wavelength-conversion agent added to the cover material.
  • the spectral location of the blue window 202 can be selected to correspond to a particular fluorescent agent so that eyewear can be spectrally matched to a particular fluorescent agent. Thus, eyewear and golf balls can be spectrally matched to provide enhanced golf ball visibility.
  • the spectral transmittance at wavelengths below about 440 nm is low so that potentially harmful short wavelength radiation is blocked. Some of this short wavelength radiation is converted by the fluorescent agent to radiation at wavelengths corresponding to the blue window 202.
  • the average transmittance of such a filter for golf is about 20%- 30%).
  • Filters for outdoor use typically have average transmittances between about 8%-80%, 10%-60%, or 10%-40%.
  • Filters for indoor use (or use at illumination levels lower than normal daylight illumination) have average transmittances between about 20%-90%, 25%-80%, or 40%-60%.
  • One embodiment, having transmittances listed in the following Table 1, has an average transmittance of about 25%>.
  • Table 1 Spectral transmittance of a filter configured for viewing a golf ball in daylight illumination.
  • the green window 204 has a maximum spectral transmittance at a wavelength of about 550 nm. Because vegetation typically appears green, the green window brightens portions of a scene that include vegetation.
  • FIG. 3 illustrates the spectral absorptions of chlorophyll a and chlorophyll b that contribute to vegetation appearance. As shown in FIG. 3, both chlorophyll a and chlorophyll b are relatively reflective at wavelengths between about 500 nm and 600 nm. Without the green window 204, light at wavelengths between 500 nm and 600 nm is blocked or attenuated, and vegetation would appear relatively dark.
  • the green window 204 in combination with the blue window 202, permits enhanced golf ball visibility while permitting accurate assessment of background surfaces such as putting surfaces or other vegetation.
  • background surfaces such as putting surfaces or other vegetation.
  • the red window 206 extends over a wavelength range from about 610 nm to about 720 nm, but the transmission of radiation at wavelengths beyond about 700 nm provides only a small contribution to a viewed scene because of the low sensitivity of the human eye at these wavelengths.
  • the red window 206 enhances the natural appearance of scenery viewed with an optical filter having a spectral transmittance corresponding to FIG. 2 A, transmitting some red light reflected by vegetation, and provides additional advantages by improving the golfer's ability to focus more accurately. Because the ability of the human vision system to focus is proportional to the spectral bandwidth of the radiation received by the eyes, the more polychromatic light produced by transmitting red, green, and blue components of light permits improved focus.
  • spectrally transmitting windows in the green and red portions of the spectrum permits improved depth perception as well as improved focus.
  • a filter having such spectral windows provides improved perception of vegetation (especially putting surfaces) as well as providing more natural looking scenery while retaining the enhanced golf ball visibility associated with the blue window.
  • dilation of the golfer's pupil is reduced, further improving the golfer's ability to see objects accurately.
  • FIGS. 2B-2E contain spectral transmittances for additional representative optical filters.
  • a spectral transmittance 220 includes a blue transmitting spectral window 222 and a red transmitting spectral window 226.
  • the spectral windows of the spectral transmittance 220 do not have spectral edges as sha ⁇ as those of the spectral transmittance, but produce enhanced viewing.
  • Table 2 contains spectral transmittance data for the spectral transmittance 220.
  • Spectral transmittances for the filter of FIG. 2B Referring to FIG. 2C, a spectral transmittance 230 corresponding to another representative optical filter includes a blue transmitting spectral window 232 and a red transmitting spectral window 236. Respective spectral transmittances 240, 250 for additional optical filters are shown in FIGS. 2D-2E, respectively.
  • the spectral transmittances 240, 250 include blue transmitting spectral windows 242, 252 and red transmitting spectral windows 246, 256, respectively.
  • Tables 3-5 contain spectral transmittance data corresponding to the spectral transmittances 240, 250.
  • Optical filters having spectral transmittances similar to the transmittances illustrated in FIGS. 2B-2E provide enhanced visibility.
  • Optical filters having such spectral transmittances can be selected for a particular application based on ease of fabrication or a need for the optical filter to appear neutral. For cosmetic reasons, it can be desirable to avoid eyewear that appears tinted to others.
  • various spectral windows can appear to overlap.
  • Optical filters can be similarly configured for a variety of activities in which tracking and observation of an object against a background is facilitated by wavelength-conversion.
  • Such filters can include a wavelength-conversion window, a background window, and a spectral-width window. These spectral windows are selected to transmit wavelength-converted light, light from activity-specific backgrounds, and light at additional wavelengths to further extend the total spectral width of transmitted light to improve focus, accommodation, or provide more natural viewing.
  • an optical filter is provided with a blue window corresponding to wavelength-conversion spectral components, a green window to facilitate viewing of a background, and a red window to improve accommodation and the natural appearance of scenes.
  • Such an optical filter can be substantially color neutral.
  • spectral windows can be chosen based on expected or measured background colors and wavelengths produced by a wavelength-conversion process. For example, tennis is often played on a green playing surface with an optic yellow ball. Such a ball typically has a wavelength conversion region that produces wavelength- converted light at wavelengths between about 460 nm and 540 nm.
  • An example filter for such an application has a wavelength-conversion window at between 460- 540 nm, and a background window centered at about 550 nm.
  • the wavelength- conversion window and the background window can have some overlap.
  • additional transmission windows can be provided in wavelength ranges of about 440-460 nm, 620-700 nm, or in other ranges.
  • an optical filter having an object-specific spectral window in addition to or instead of a wavelength-conversion window is provided.
  • the optical filter can include a red spectral window that enhances red transmission to improve golf ball visibility.
  • a green spectral window is also provided. If the golf ball also emits wavelength converted light, an additional wavelength-conversion window can be provided, if needed.
  • the filter can also include a spectral-width window.
  • eyewear 400 include a frame 402 and lenses 404.
  • the lenses 404 have a spectral transmittance that includes a wavelength-conversion window, a background-window, and a spectral-width window.
  • the spectral-width window may be omitted.
  • an object-specific spectral window is provided that can include the wavelength- conversion window.
  • the lenses 404 can be prescription lenses or non-prescription lenses and can be made of any of a variety of optical materials including glasses or plastics such as acrylics or polycarbonates.
  • the lenses can have various shapes, including plano-plano and meniscus shapes.
  • a frame is configured to retain a unitary lens that is placed in front of both eyes when the eyewear is worn.
  • Goggles can also be provided that include a unitary lens that is placed in front of both eyes when the goggles are worn.
  • the spectral transmittance of the lenses 404 can be obtained in several ways.
  • a coating can be provided to one or more surfaces of the lenses.
  • Such coatings typically include one or more layers of coating materials configured to achieve a selected spectral transmittance.
  • the layers can be abso ⁇ tive so that radiation from spectral regions that are to be attenuated is absorbed in the coating, or the coating can be reflective so that radiation at such wavelengths is reflected.
  • one or more dyes or other chromophores are inco ⁇ orated within the lens material by a dyeing or other process. Two or more of the above methods can be combined to produce the desired spectral characteristics.
  • a natural contrast, enhanced-visibility filter can be provided for sports such as baseball, tennis, badminton, basketball, racquetball, handball, archery, target shooting, trap shooting, cricket, lacrosse, football, ice hockey, field hockey, hunting, soccer, squash, or volleyball.
  • a filter includes an object- contrast window selected to transmit wavelength-converted light produced by a fluorescent agent in a baseball, tennis ball, badminton birdie, or volleyball or light that is preferentially reflected by these objects.
  • Background windows and spectral- width windows are then provided so that backgrounds are apparent, scenes appear natural, and the wearer's focus and depth perception are improved.
  • different background windows can be provided for play on different surfaces.
  • tennis is commonly played on grass courts or clay courts, and filters can be configured for each surface, if desired.
  • ice hockey can be played on an ice surface that is provided with a wavelength-conversion agent or colorant and lenses configured for viewing a hockey puck with respect to such ice.
  • Outdoor volleyball requires accurate viewing of a volleyball against a blue sky, and the background filter can be selected to permit accurate background viewing while enhancing contrast in outdoor lighting.
  • a different configuration can be provided for indoor volleyball.
  • Eyewear that includes such filters can be activity-specific, surface-specific, or setting-specific.
  • tinted eyewear can be provided for activities other than sports in which it is desirable to identify, locate, or track an object against backgrounds associated with the activity. Some representative activities include dentistry, surgery, bird watching, fishing, or search and rescue operations.
  • filters can also be provided in additional configurations such as filters for still and video cameras, or as viewing screens that are placed for the use of spectators or other observers.
  • Filters can be provided as lenses, unitary lenses, or as face shields. For example, a filter for hockey can be included in a face shield. Representative embodiments have been described above with reference to filter transmission, but reflective filters can also be made.
  • a neutral density filter can be provided in conjunction with the filters described above in order to reduce light intensities to levels that produce comfortable viewing.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

L'invention concerne un dispositif optique comprenant des lentilles à transmittances spectrales sélectionnées pour visualiser un objet par rapport à un fond. Les transmittances spectrales sont sélectionnées pour donner une dimension naturelle aux scènes visualisées à l'aide du dispositif optique. Dans un exemple, une lentille de visualisation d'une balle de golf blanche comprend une fenêtre spectrale de contraste avec l'objet qui transmet des rayonnements à des longueurs d'onde d'environ 440 nm, une fenêtre de fond qui transmet des longueurs d'onde à environ 550 nm, et une fenêtre de largeur spectrale qui transmet des longueurs d'onde entre environ 620 nm et 700 nm. Des dispositifs optiques semblables peuvent être configurés pour d'autres activités. L'invention concerne également des procédés de sélection de filtres et de lentilles pour de tels dispositif optiques.
EP02704240A 2001-01-23 2002-01-23 Filtres optiques specifiques a une activite et dispositifs optiques utilisant de tels filtres Withdrawn EP1356343A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10185967.6A EP2290432B1 (fr) 2001-01-23 2002-01-23 Filtres optiques spécifiques a une activité et dispositifs optiques utilisant dé tels filtres

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/768,940 US6631987B2 (en) 2001-01-23 2001-01-23 Activity-specific optical filters and eyewear using such filters
US768940 2001-01-23
US878128 2001-06-07
US09/878,128 US6893127B2 (en) 2001-01-23 2001-06-07 Activity-specific optical filters and eyewear using such filters
PCT/US2002/002100 WO2002059684A2 (fr) 2001-01-23 2002-01-23 Filtres optiques specifiques a une activite et dispositifs optiques utilisant de tels filtres

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10185967.6A Division EP2290432B1 (fr) 2001-01-23 2002-01-23 Filtres optiques spécifiques a une activité et dispositifs optiques utilisant dé tels filtres

Publications (1)

Publication Number Publication Date
EP1356343A2 true EP1356343A2 (fr) 2003-10-29

Family

ID=27118105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02704240A Withdrawn EP1356343A2 (fr) 2001-01-23 2002-01-23 Filtres optiques specifiques a une activite et dispositifs optiques utilisant de tels filtres

Country Status (4)

Country Link
EP (1) EP1356343A2 (fr)
JP (1) JP4202137B2 (fr)
AU (1) AU2002237934A1 (fr)
WO (1) WO2002059684A2 (fr)

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ATE415642T1 (de) * 2005-05-02 2008-12-15 Noctron S A R L Fernglas
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US9377569B2 (en) 2006-03-20 2016-06-28 High Performance Optics, Inc. Photochromic ophthalmic systems that selectively filter specific blue light wavelengths
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AU2007325483B2 (en) * 2006-11-28 2013-08-29 High Performance Optics, Inc. High performance selective light wavelength filtering providing improved contrast sensitivity
US8770749B2 (en) 2010-04-15 2014-07-08 Oakley, Inc. Eyewear with chroma enhancement
CA2852520C (fr) * 2011-10-20 2020-10-27 Oakley, Inc. Oculaire ayant une agglomeration de chromie
WO2013169987A1 (fr) 2012-05-10 2013-11-14 Oakley, Inc. Lunettes à couches fonctionnelles stratifiées
US9798163B2 (en) 2013-05-05 2017-10-24 High Performance Optics, Inc. Selective wavelength filtering with reduced overall light transmission
US9575335B1 (en) 2014-01-10 2017-02-21 Oakley, Inc. Eyewear with chroma enhancement for specific activities
US9683102B2 (en) 2014-05-05 2017-06-20 Frontier Scientific, Inc. Photo-stable and thermally-stable dye compounds for selective blue light filtered optic
CN207704150U (zh) 2014-11-13 2018-08-07 奥克利有限公司 具有颜色增强的可变光衰减眼睛佩戴件
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Also Published As

Publication number Publication date
WO2002059684A3 (fr) 2002-10-31
WO2002059684A2 (fr) 2002-08-01
JP4202137B2 (ja) 2008-12-24
JP2004524558A (ja) 2004-08-12
AU2002237934A1 (en) 2002-08-06

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