- a grid showing OD of each gog

2021/05/21

And - a grid showing OD of each goggle for certain common laser lines - would make selction faster than scrolling back and forth among the charts (or downloading the graphs). I have reached out to you directly to discuss this further. The problem is that LG3 doesnt stop the fundamental. Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range. thanks we need safety glasses for Ti:Sapphire amplifier alignment. Hello. I'd be using "Nano S 30-30 PIV" laser with these specifications: Response from Laurie at Thorlabs to aidi: We would recommend the LG4 blue lens, which has an optical density that is >5 for both 633 nm and 780 nm light. . Response from Jeremy at Thorlabs: The selection of laser safety goggles should also take into account the diameter of your laser and the operating mode. Second, I was wondering if the orange lenses protect from direct exposure from an argon laser? We are currently getting this information together and added to our website in the next couple of days. A response from Adam at THorlabs: We currently do not sell one set of glasses that will block 1064nm, 694nm and 532nm effectively. It does not list specific wavelengths or protection factors (e.g., optical density) as these are classified. Lasers have been used en masse against riot police in demonstrations in regions as diverse as Canada, the U.S., Ireland, Thailand, Greece, Egypt, and Italy, among others. Im looking for safety glasses that cover the spectrum of concern for biological safety and health in the 180-320 nm range. Third, I noticed the goggles dont have complete peripheral protection. There are two different frames, including one that resembles typical aviator sunglasses. You don't seem to have goggles in your catalog which protect against yellow light (590 nm). Regards, b)argon (458 nm, 488 nm, 514 nm) So, Im looking for something that actually covers the 254 nm range.what do you recommend? Thank you for your feedback. In general, the more wavelengths (colors) that are protected against, the dimmer the view compared with single-wavelength blocking glasses. Refer to the, The OD and LB-Rating Specifications are determined by the filters in the glasses, NoIR model # DYE. Would you think its possible to add a coating to reflect 750-850nm ? Please confirm the selection with your local laser safety officer before purchase as we are not liable to make formal laser safety recommendations. Will LG1 goggles work? Response from Jeremy at Thorlabs: We do not have any safety goggles that block all the visible light. The Sport style frame is designed to wrap around the user's face, providing full laser protection with a continuous field of view. Thank you for your interest in our products. Dear Sir or Madame, I'm confused regarding the CE certification of your laser safety glasses. The frame design of other Thorlabs glasses does not have such problems; as far as I can tell LG11 is the only different frame model. Is a laser flashlight a "laser" in California? (2) 1152 nm: LG11 (OD 7+) Since you did not leave your contact info, can you e-mail techsupport@thorlabs.com to request a quote please? Response from Tyler at Thorlabs to srubin: Thank you for pointing out the spelling error. Thank you for your feedback. If you need protection from these types of green lasers, our Argon laser safety glasses are the right choice for you. Therefore is it correct that I can use a max laser powerdensity of 10^6 W/m^2 with LG12 and 10^7 W/m^2 with LG3? Some key reasons are: An alternative to eyewear: Windscreen protection. The chart shows the protection against blue (440 nm), green (532 nm) and red (640 nm). Plus, independent research has shown that many, if not the majority, of commercially available laser pointers are incorrectly classified, with power output exceeding designated compliance levels set by the Code of Federal Regulations[x]. Any eye exposure beyond set levels of Maximum Permissible Exposure (MPE) can cause ocular tissue damage. For your second comment, we had a graphical chart in our most recent catalog that I believe would aid in the selection process. Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. The cleaning cloth included with each pair of laser safety glasses can be used for removing dust from the surface of the lens. Response from Sean at Thorlabs: Thank you for your feedback. Response from Mike at Thorlabs: Thank you for your feedback. What should be done about laser pointers? Thanks. I would need a pair of laser safety glasses because during my job I have to work with a fiber laser cutting machine with a class 4 semiconductor diode laser source.

Would it be a better to store the frames in my home which is cooler and carry the goggles in my backpack on the days I need them? The laser safety glasses can be cleaned using 91% isopropyl alcohol and wiped with a cotton swab. These operate in the C-band, 1528nm - 1565nm. Could you please help me know which other parameters should I consider for choosing the right goggles? Do you have any numbers for the LG1 filter beyond 1090 nm? It is important to use the Laser safety Eyewear specifically designed for the characteristic of your laser. My lab is about that temperature, sometimes higher, sometimes lower. Do you have these kind of glasses? Revision is committed to providing a full complement of high-impact, laser protective solutions for military, tactical, law enforcement, and aviation use in a wide variety of hostile conditions. I have looked at LG12 and LG3 that both have OD = 7+. The OD numbers indelibly printed on the laser safety glasses can be used to determine if the glasses meet the ANSI Z136 standards of laser safety protection for a given laser product. If you need help understanding the ANSI Z136, EN 207, or EN208 standards on the Specs Tutorial tab, our Tech Support team would be able to discuss those with you. The photo-illustrations below give an idea of how LGP glasses work: There are three main technologies used to make LEP and LGP eyewear: How to select and evaluate Laser Glare Protection eyewear. Could the goggles be stored in a refrigerator? Are there any products that match up to this requirement? I will contact you directly to discuss about this further. Kind regards, Sebastian Jger. Argon laser safety glasses can help. The threshold for incurring injury is lower and the duration to sustain this injury is shorter. If you do have questions about which eyewear would be best suited to your individual application, I would recommend that you speak to our applications engineers by calling 1-973-300-3000. Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface. Hundreds of thousands of Revisions laser protective lenses have been sold all over the world over the last 10 years, including to the U.S. Army, U.K. MoD, Dutch DMO, Belgium MoD, the Canadian DND, Greek MoD, Swedish MoD, the German MoD, and the South African Air Force. We are interested in blocking both UV and IR light over 800 nm. Please contact us and consult with your laser safety officer if you have any questions. The LG2 goggles you referenced permit 19% visible light transmission. The current EN 207 L ratings are still valid. 180-315 D LB7 + IR LB4 NOIR It has OD 7+ from 9,000 to 11,000 nm. Could you, please, confirm it for me? Make interactive graph function so we can chosse start and end wavelength and select different combination of goggles - would let user confirm they have covered a particular range. ***. THORLABS Range/optical Density(OD) 190 to 534 nm OD= 7+, Typical Wavelength = 532 nm. Based on your feedback we have updated the web and spec sheets for the LG11 safety glassed to reflect that they do not work with prescription glasses. So eyewear was a natural choice for the first commercially available laser protection product from MTI. Hello, thank you for contacting Thorlabs. I wear glasses. These hazards range based on the strength of the beam and wavelength but extend from glare, flashblindness, and afterimage up to and including permanent blindness. I have reached out you directly regarding the feasibility of ordering just the frames of our LG11A glasses. Javier Tovar. Which would you recommend among LG2(19%VLT), LG3(48%VLT) and LG10(35%VLT)? I am planning to purchase goggles for blue laser 405nm wavelength & OD 6+. We have updated the presentation. When engaging in controlled aviation maneuvers, precision and focus are more than vital. These laser glasses maynot fit over prescription glasses.

Hi, Refer to the. They also represent a fire risk, because they may ignite combustible material. The Comfort style frame features detachable inserts for prescription lenses (please consult your doctor to fit lenses for the inserts) and an extended nose piece that may be more comfortable for users who have a low nose bridge.

If you know the total power emitted from the fiber, you can calculate the power density at 25.4 mm (1") from the fiber tip. Yvan I mean I set the desired wavelength and laser parameters, and the page orders them in OD number, pass/fail criterion. Please note that we provide an OD to transmission conversion table in the "Overview" section on this webpage. I am using a Bosch Laser distance measurer model GLR 225. I recommend discussing your safety glasses selection with your local laser safety officer who can most effectively evaluate your laser specs. The laser source has the following characteristics: Hello, A response from Adam at Thorlabs to mozaffari: The glasses we currently provide that will block light at 532nm are the LG10 and LG3. The MPE can be exceeded with this class of laser; however, this presents a low risk level to injury. We have recently purchased laser Safety Glasses (LG-10) with Response from Laurie at Thorlabs to bamberc: For an OD>4 at 405 nm, you have several options: LG2, LG3, or LG10. The OD and LB-Rating Specifications are determined by the filters in the glasses, NoIR model # DBY. Hello, thank you for contacting Thorlabs. The LG10 will block light from 190nm-534nm with an OD of 7+, while the LG3 will block light from 190nm-532nm with an OD of 7+. Albert. BGR is for full sun conditions; it reduces green, blue and red by 90-97%, with 29% transmittance for full sun conditions. Note: The values in this table are rounded down to provide conservative beam areas. We recommend discussing the choice of laser safety glasses with your laser safety officer. 4) Burn marks on the glasses indicated direct exposure to a laser beam. Any laser incident may be over before glasses can be put on. Dear Thorlabs Team, Your current selections offer minimal OD at your operating wavelengths. I will reach out to you directly to discuss this further. It is very disappointing that it is not available in a style that works over regular glasses. My question is about if these model, LG16C, is suitable for working with a 40 W Class IV CO2 Laser engraver, which wavelength is 10640 nm. Dear Thorlabs, The humain eye is very sensitive to laser radiation and can be damaged from direct or reflected beams. And what glasses do I need to choose for my 561 nm green laser? The right type of goggles would depend highly on the environmental condition (i.e. An OD of 6+ is a transmission of 0.0001%. Do you sell detachable inserts for prescription lenses separately? In response to your question, VTL stands for visible transmitted light. I was thinking LG2 but its level of protection does not seem sufficient. We can supply some custom glasses and will need to discuss your laser output to provide a solution. I am a graduate student in Caltech. Thank you for your questions and for your interest in our product. These laser safety eyewear are made with polycarbonate lenses that protect against Green laser 200 to 532nm and infrared radiations of 900 to 1100nm. I have included a link to our viewing cards below.

Actual photo of Airbus A330 banking while coming in to land at Zurich airport. From the abstract: It describes design criteria used in the development of laser protective devices, operational considerations, training, fit, inspection, maintenance and immediate response procedures to follow after suspected laser exposure. Filter specifications are permanently engraved. Is the supplier's recommendation correct? Certificates of Conformity Available for Compliance with: ANSI Z136.1 Standards for Safe Use of Lasers (Except LG16 Series), ANSI Z87.1-2003 Standards for Occupational and Educational Personal Eye and Face Protection Devices(Except LG16 Series), EN 207 Standards (Except LG14 Series, See, EN 208 Laser Alignment Standards (LG13 and LG14 Series Only, See. For the M rating of LB7 in the wavelength range of >950 to 1064 nm, the glasses were tested at pulses between 12 ps and 170 fs. Anti-laser glasses will reduce visible light transmittance, so the view may be dimmer. The table to the left lists the beam area created by light exiting a fiber for fibers with numerical apertures (NA) between 0.10 and 0.50. Hello, Sales Order: TS1187311 In an instant, laser illuminations can cause vision-disruption or even eye damage; and these dangers are amplified in circumstances where every second counts. Sport StyleThe Sport Style glasses have a compact (134 mm x 48 mm) frame designed for full laser safety coverage without the need for side shields and provide the user with a wide field of view. eyewear safety laser The laser safety rating will not be affected by any of the above cleaningprocedures. 2022 Revision Military. Operate a laser at the minimum power necessary for any operation. Some of the products listed on the website seem to match up but in those products, the OD curves are sloping at this wavelength and in the others where it is constant, the value is either too high or low. Simulated use of Laser Glare Protection glasses. Filter color: Orange These high performance laser safety goggles are made of high PC material with laser absorber, these glasses protects against accidental eye exposure to green laser 315 to 532nm and Infra red 900 to 1070nm. These were so unsafe and I could visibly see exposure in the top and bottom of the glass. Which laser safety glass(es) models would be appropriate? Universal StyleUniversal Style laser safety glasses feature a large (145 mm x 53 mm) frame that can be worn comfortably on top of prescription glasses. Would the LG2(19%VLT) be suitable for the task or would you rather advice the LG11 (75%VLT) or another type? The store will not work correctly in the case when cookies are disabled. If you have any questions about Argon laser safety glasses or laser safety glasses for laser pointers, or whether Phillip Safetys Argon laser safety glasses are right for you, leave us a comment below! OD 4 would be good. They are equipped with lensed side shields and solid top shields to protect the user's eyes from laser radiation while maintaining peripheral vision. Please send your requirements to techsupport@thorlabs.com so that we can work on a quotation for you. Weather radar colors.

A product data sheet is, Laser pointer usage tips / How to stay safe and out of jail / ion-checkmark-round, FAQs and media info // ion-information-circled, Aviation laser strikes info / Video, pilot tips, eyewear, stats / ion-android-plane, 2018 SAE laser mitigation recommendations, Consumer laser eye injury info / Injury severity & number of injuries / ion-eye, Laser use during protests /Potential harm to police etc./ ion-alert, If you are harassed by lasers // ion-ios-medical, If you are hit by a laser beam / Injury diagnosis and treatment / ion-medkit, If your camera is hit by a beam // ion-ios-camera, How to report a laser incident // ion-chatbubble-working, How to reduce incidents / For users, sellers, pilots, regulators / ion-android-bulb, News / Incidents, statistics and more, Index to news stories (categories & tags), Sentences for laser offenses / A list of persons fined or jailed / ion-sad-outline, Laser pointer laws / Plus proposed & suggested laws /ion-ios-world. I will reach out to you directly as well. Yu-Hung Lai Hey Friends For each frame style, there are three different lens types available: They began work on the laser dazzle visor in 2014 and hope to start selling to military, airline suppliers and emergency services in 2018. Cracked lenses or frames also warrant replacement of the glasses. We can provide the LG10 glass, which will block the 1064nm and the 532nm light. At present, for a general public laser "pointer," the maximum power is set at 5 milliwatts (U.S.) or 1 milliwatt (U.K.)[ix]. The eye is susceptible to injury, even from very low levels of laser light. gracias ATTE. Hello, I need laser safety glasses for 632.8 nm light with OD=2. We will be adding downloadable data files as well as easier to read plots to our website soon. Some of these pointers emit not only visible light (red, green or blue), but also emit additional invisible and dangerous (infrared) radiation at many times the stated visible light power. The "b" refers to the footnote "b" right below the spec table: "For the M rating of LB7 in the wavelength range of >950 to 1064 nm, the glasses were tested at pulses between 12 ps and 170 fs. It has the best visible light transmission for working with NIR lasers. Refer to the, The OD and LB-Rating Specifications are determined by the filters in the glasses, NoIR model # DI4. thanks, Refer to the, The OD and LB-Rating Specifications are determined by the filters in the glasses, NoIR model # DIA. At 532 nm, the glasses will have an optical density between 3 and 4, correlating to transmission between 0.1% and 0.01%. Can you please let me know which one is the right one and why? So far, the rise in incidents is not matched by an equal or sustained countervailing response against the threat. I need to be able to see indicator light red and blue, but with 532nm laser attenuation at OD5 or greater.

I am building a laser system with IR 1064 nm laser, 20W output, pulsed, with pulse length about 33 ns, 0.7mJ maximum energy in one pulse. This translates into transmission values of 0.001% to 0.00001% (you can visit the Specs Tutorial tab for more info). Thank you for your interest in our products. LG11, unlike all other Thorlabs glass models, have a different and very bad frame design. The LG2 laser glasses are rated with an OD of 3+ at 1500 nm.

Class 3B: 20% of proceeds from every LE Edition purchase will be donated to Concerns of Police Survivors (C.O.P.S.). Our laser safety eyewear come in a variety of types, colours, styles and prices. Great care must be taken when handling these lasers. This means that the flow of laser technology is not fully controlled but also that the power of lasers changing hands on the open market is relatively unconstrained; the safety parameters of devices may not be entirely clear to users or may be easily exploited for malicious purposes. We will consider your suggestion further. At the following link, you will find our Laser Safety glasses catalog: https://www.phillips-safety.com/product-category/laser-safety/laser-safety-glasses/. This represents a 144-fold increase from 2004 to 2015. Thank you. The FT-2 has adequate visible light transmission and FPS has also had reports of violet laser use during these demonstrations creating the need for the broader protection. Response from Buki at Thorlabs: For disinfection of the glasses, we recommend mild detergent or soap and hot water or a dilution of isopropyl alcohol (up to 70% solution).

Laser safety ratings are indelibly printed on the lenses to indicate the level of protection provided for specific wavelength ranges. NOTE FOR POLICE/PROTEST USE: A July 10 2020 sole-source contract saw the Federal Protection Service buying Stingerhawk FT-2 Laser Protective Eyewear from Revision Military. Correspondingly, laser threats are a particularly difficult danger to get a handle on because the threat is often hidden. Do not operate lasers without correct protective equipment and training. All our laser glasses meet or exceed the United Stated industry standard ANSI Z136.1, the requirements for use with the appropriate laser systems. In terms of spectral filtering LG2 seems to do the job but could it be that the visibility is too reduced? These hazards may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. PBG reduces green by 99.5%, blue by 97%, has 49% transmittance for low-light conditions, and has good instrument panel visibility. We used them occasionally and they were mostly kept in their cases. I need a pair of safety glasses to cover 670nm 5mW, 639 30mW and 780nm 50mW CW laser diodes if that is possible with a single pair. Reprinted from Photonics Spectra, January 2014.The Air Force Aircrew Laser Eye Protection (ALEP) program. Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. Are these glasses Ansi Z87 compliant? Thanks for your kind help. We are currently in the process of re-certifying all of our laser safety glasses. Response from Sean at Thorlabs: Thank you for your feedback on our website.

This chart from Night Flight shows Laser Armor Aviator Glassesabsorbing 99.5% of green beams and 97.0% of blue beams, The eyewear is said to have an Optical Density between 2 and 5, meaning that it will attenuate the amount of 532nm light reaching eyes by 100 to 100,000 times. Our lab. Measuring time max: 4 sec, measuring time type: smaller than 0,5 sec. On top of these deficiencies, it remains prohibitively difficult for law enforcement to track down illegally-marked or distributed lasers. We bought two about a year ago and they both have cracks around the edge which is very unsafe to use because that gives a gap between the lens and the edge so that laser can get in. A response from Tyler at Thorlabs to jdonnelly: The LG1 laser glasses are not rated at 1500 nm. The LG11 will offer you the highest OD (7+) for your 1060 nm - 1070 nm range. Best, While Thorlabs cannot formally recommend specific laser safety glasses, we suggest checking on the suitability of the LG12 for your application with your local Laser Safety Officer since it has an OD spec of 7+ for both wavelengths of interest. Our laser glasses are CE certified and the certification can be found by clicking on the red Docs icon next to the item numbers. Hello, thank you for contacting Thorlabs. 325 laser safety glasses were primarily developed for protection from laser wavelength 532 nm (KTP, Argon, and green light lasrs) offering high visibility when using lasers operating within that wavelength. Given the widespread and hidden nature of laser strikes, at present, producing protective eyewear solutions is the easiest and most effective way to combat this increasingly untenable danger. With regards to the two comments posted, larger OD versus wavelength plots can be found under the Drawings & Documents Tab if you click on the specs sheet.

As for the dual-use question, it would be difficult to provide general information that would be beneficial to a wide group since the correct saftety goggles are highly application specific. We purchased three LG11 laser safety glasses around 2014. Response from Mike at Thorlabs: Thank you for your feedback. Unfortunately, we don't offer anything with an extremely high OD for your entire wavelength range. Dear Thorlabs, GF-8 lenses block up to 99.9% of 532 nm green laser energy, and stop 99% of 808 nm near-infrared radiation, a hazardous, invisible component of green lasers. In addition, the OD can be used to calculate the transmission (T) of light through the laser safety glasses. Thanks. The interior is 145mm x 53mm and have a 140mm temple. Hello You can determine appropriate safety goggles through the European EN 207 standard. We will contact you directly to find out more about the specifications of your laser and suggest something appropriate. Thank you for contacting Thorlabs. laser 3. Refer to the, The OD and LB-Rating Specifications are determined by the filters in the glasses, NoIR model # AG3. Although we can try to obtain this data for you, that wavelength is outside the specified range. While these laser safety glasses cannot be worn over prescription glasses, each pair includes a detachable insert for prescription lenses (seen by clicking on the the image to the right). Sarah. However, LGP should not be routinely worn. Dear Support, California Institute of Technology, Response from Jeremy at Thorlabs: The LG11 lens is more difficult to cut than the other ones and they are not available in the universal style. For information on how to interpret the rating please see the information contained on the "Specs Tutorial" tab or contact one of our application engineers.

Care InstructionsWhen not being used, the laser safety glasses should be stored in their protective case and in an area where the temperature does not exceed 80 F (26.6 C). Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina.

). The Pervasive Threat of Green Laser Illuminations and the Need for the Robust Military, Tactical and Aviation Eye Protection Found in Revisions LazrBloc. Here are some tips: When to wear Laser Glare Protection eyewear. I will reach out to you directly about the needs for your application. I will get in contact with you directly to discuss about this further. I've sent you an Exel file with the LG6 data directly. An appendix lists LGP products known to the SAE G10-OL committee at time of writing the document.Eyewear Helps Thwart Laser-Pointer Attacks, by Jason Palidwar, Iridian Spectral Technologies. Which laser safety glasses do you recommend with this laser? I will contact you directly to determine if we can provide a custom that suits your source. Revision Military has long been at the forefront of ballistic laser protective eyewear. But because the shifted colors remain visible and stay within the same general hue, the manufacturer says this eliminates the possibility of color confusion., Revisions latest laser lensthe LazrBloc GF-8is a cross-functional aviation, law enforcement, and military solution for in-field vision disruption, disorientation, and impairment caused by green laser energy. We have contacted you to discuss different options from our selection of laser goggles, but please note that you should reveiw the specifications of the goggles with your laser safety officer to determine the appropriate one for your application. There are several ways to defend against such a direct threat: neutralize at the source or protect the area most sensitive. May I ask if there is any particular reason for not considering the LG6C glass instead?

How long the warranty is for this goggle?