Skyddsglas mot laser blå 200mn mn

Features

• Absorptive Dye Encased in Hardened Polycarbonate Lenses (Resistant to Breaking)*
• Protection Lasts for a Minimum of 10 seconds at Maximum ett 207 Rated Exposure (See Specs Tutorial Tab)
• Specifications printed at the top of the lenses or on the frame
• Laser Glasses Available in Multiple Frame Styles
• Certificates of Conformity Available for Compliance with:
  • ANSI Z136.1 Standards for Safe Use of Lasers
  • ANSI Z87.1-2003 Standards for Occupational and Educational anställda Eye and Face Protection Devices
  • EN 207 Standards (Except LG14 Series, See Specs Tutorial Tab)
  • EN 208 ljusstråle anpassning Standards (LG13, LG14, LG21, and LG22 Series Only, See Specs Tutorial Tab)

These ljusstråle Safety Glasses provide CE certified ljusstråle radiation protection.

The lenses of all glasses except for the LG11 series are made from absorptive dye encapsulated in hardened polycarbonate, which provides superior resistance to breakage and prevents minor scratches from affecting ljusstråle protection.

The LG11(A) ljusstråle Safety glasses use a Schott glass substrate.*

The optical density (OD) and LB-Rating for specific wavelength ranges are indelibly printed on the lens or frame for permanent identification without blockering the field of view^†. For a complete list of optical densities and LB-Ratings, please click on the row corresponding to each item # in the urval guide to the right.

Thorlabs offers ljusstråle safety glasses in up to four different frame styles (see the Frame Styles flik for details).

• The Universal style frame* can be worn over prescription glasses and features side and top shield protection from peripheral ljusstråle radiation.
• The bekvämlighet style frame features detachable inserts for prescription lenses (please consult your doctor to passform lenses for the inserts) and an extended nose del av helhet that may be more comfortable for users who have a low nose bridge.
• The idrott style frame fryst vatten designed to omslag around the user's face, providing full ljusstråle protection with a continuous field of view.
• Finally, the Modern Goggle style comes with detachable inserts for prescription lenses and a built-in
  adjustable strap, making it the most secure of the frame styles.

  They have a gasket to create a seal around the customer’s eyes as well as vents to prevent fogging.

Each pair of ljusstråle safety glasses comes with a protective storage case, cleaning cloth, and adjustable neck strap. However, the Modern Goggle style does not komma with the separate neck strap as the neckstrap for the Modern Goggles fryst vatten built in.

Care Instructions
When not being used, the ljusstråle safety glasses should be stored in their protective case and in an area where the temperature does not exceed 80 °F (26.6 °C). The cleaning cloth included with each pair of ljusstråle safety glasses can be used for removing dust from the surface of the lens.

Products used for cleaning prescription eyeglasses are safe to use with our ljusstråle safety glasses. For disinfection of the glasses, we recommend mild detergent or soap and hot vatten or a dilution of isopropyl alcohol (up to 70% solution). We do not recommend any highly caustic solutions. The ljusstråle safety rating will not be affected bygd any of the above cleaning procedures.

Picking the Appropriate ljusstråle Safety Glasses
Since the correct choice of ljusstråle safety eyewear depends upon many local factors that cannot be evaluated remotely, including the stråle path, ljusstråle parameters, and lab environment, Thorlabs cannot recommend specific eyewear for your application.

We would recommend discussing your needs with your organization's ljusstråle safety officer.

*The LG11 and LG11A are made using Schott glass, and therefore use a different frame design than our other Universal style ljusstråle glasses. passform over prescription glasses may be affected (see the Frame Styles flik for details).

To ensure CE compliance, only two styles are offered. OD and LB-Rating specifications for the LG11 and LG11A are printed on the frame.

†For maxmimum protection, our ljusstråle safety glasses should not be used more than fem years from the production date. All of our ljusstråle safety glasses except for the LG11 and LG11A are inscribed with a production date code on the bottom-right corner of the right lens, as can be seen here.

The date code fryst vatten represented as a five-digit number, with the first two digits defining the year and the gods three defining the day of the year. Thorlabs will not fartyg glasses with less than three years of usable life remaining.

Universal Style
Universal Style ljusstråle safety glasses feature a large (145 mm x 53 mm) frame that can be worn comfortably on top of prescription glasses.

They are equipped with lensed side shields and solid top shields to skydda the user's eyes from ljusstråle radiation while maintaining peripheral framtidsperspektiv. The frame has adjustable ledd lengths to accommodate different temple sizes.

ljusstråle safety ratings are indelibly printed on the lenses to indikera the level of protection provided for specific wavelength ranges.

The LG11 fryst vatten composed of a Schott Glass substrate, and uses a different frame than other universal style ljusstråle glasses that features side shields made from solid plastic providing full ljusstråle protection but at the expense of peripheral framtidsperspektiv.

These ljusstråle glasses may not passform over prescription glasses. ljusstråle ratings on the LG11 are indelibly printed on the left side shield, not on the lenses.

Comfort Style
Comfort Style glasses feature a medium (145 mm x 47 mm) frame with solid side shields for full protection from peripheral ljusstråle radiation.

While these ljusstråle safety glasses cannot be worn over prescription glasses, each pair includes a detachable insert for prescription lenses (seen bygd clicking on the the image to the right). Contact your doctor to passform lenses for the inserts.

These frames are equipped with an extended nosepiece that allows the glasses to sit more comfortably on the noses of users who have a low nose bridge. ljusstråle safety ratings are indelibly printed on the lenses (LG11A ljusstråle ratings are printed on the frame) to indikera the level of protection provided for specific wavelength ranges.

Sport Style
The idrott Style glasses have a compact (134 mm x 48 mm) frame designed for full ljusstråle safety coverage without the need for side shields and provide the user with a bred field of view.

Glasses with this frame style have arms that feature adjustable lengths and an adjustable joint (seen bygd clicking on the image to the right) to customize the passform for different head shapes and sizes. These idrott style glasses cannot be worn over prescription glasses and do not include inserts for prescription lenses. ljusstråle safety ratings are indelibly printed on the lenses to indikera the level of protection provided for specific wavelength ranges.

Modern Goggle Style
The Modern Goggle Style features an adjustable strap, a gasket to create a seal around the eyes, as well as vents to prevent fogging.

The interior dimensions of these ljusstråle goggles are
133 mm x 51 mm. The lenses have a diagonal length of 66 mm. ljusstråle Safety Goggles are equipped with detachable inserts for prescription lenses (please consult your doctor to passform prescription lenses for the insert). Laser safety ratings are indelibly printed on the lenses to indikera the level of protection provided for specific wavelength ranges.

*** This guide fryst vatten not intended as a substitute for reading and understanding the ANSI Z136 or ett 207 or ett 208 ljusstråle Safety Standards.

It fryst vatten only meant to provide an introductory overview to understanding the markings on the lenses of the LG series of ljusstråle glasses. ***

ANSI Z136 and ett 207 Standards

Indelibly printed on the ljusstråle safety glasses are two sets of numbers: Optical Density (OD) and LB-Rating, which are both used to indikera the level of protection provided for specific wavelength ranges.

The OD numbers indelibly printed on the ljusstråle safety glasses can be used to determine if the glasses meet the ANSI Z136 standards of ljusstråle safety protection for a given ljusstråle product.

In addition, the OD can be used to calculate the transmission (T) of light through the ljusstråle safety glasses.

The europeisk ett 207 standard for ljusstråle safety glasses requires that the protective eyewear be labeled with the CE mark and that the LB-Rating specifications are indelibly printed on the lens. In addition, the lenses and frames must be able to provide the stated level of protection for 10 seconds or 100 pulses depending on the mode of the ljusstråle.

The LB-Rating fryst vatten composed of 3 components: a wavelength range, a ljusstråle mode designation, and a scale number. The wavelength range engraved on the ljusstråle safety glasses fryst vatten given in nm and fryst vatten extremely important since the level of protection provided bygd the ljusstråle safety glasses fryst vatten wavelength dependent.

The ljusstråle mode designation fryst vatten based on the duration of ljusstråle pulse emitted bygd the laser.

Laser Mode Designation

The scale number (LBn) fryst vatten intended to be used in conjunction with the wavelength range and the ljusstråle mode designation in beställning to determine if the ljusstråle safety glasses meets the minimum required level of protection for a given laser; see the table below.

If one component of the LB-Rating fryst vatten shared, a plus sign fryst vatten used to separate multiple wavelength ranges or ljusstråle modes and scale numbers in beställning to bevara space.

In addition, a greater than, >, sign preceding a wavelength range indicates that the mode and scale number ratings for that wavelength range are valid for wavelengths of light greater than the bottom number in the range up to and including the top number in the range. For example, if the glasses were rated as 330-370 D LB2 and >370-500 D LB3 then at 370 nm the rating would be D LB2 and for all wavelengths greater than 370 nm up to and including 500 nm would be rated at D LB3.

There are two ways to use the table above: uppstart with the scale number and calculate the maximum safe power density or uppstart with a power density and calculate the minimum safe scale number.

This fryst vatten demonstrated bygd the two examples below.

Example 1: The LG3 ljusstråle safety glasses have an LB-Rating line that reads "180-315 D LB7 + IR LB4". So if the LG3 glasses are being used with a 10 µs pulsed 280 nm light source the table above can be referenced to find that, E=3x10ⁿ⁺¹ J/m², where in this example the scale number fryst vatten LB4 so n=4.

As a result, when the LG3 ljusstråle safety glasses are being used in this situation the maximum power density of the light source should not exceed 3x10⁵ J/m².

Example2: A CW Krypton Ion ljusstråle lasing at 647.1 nm has a maximum power density of 2.2x10⁴ W/m². Using the table above, the scale number can be calculated using LBn=log₁₀(P)-1, which results in a rounded up scale number of 4.

The LG4 ljusstråle safety glasses meet the safety specifications of the europeisk enstaka 207 standard for this example.

Alignment Rating (EN 208)

The LG13 and LG14 series of glasses are rated for ljusstråle anpassning applications. This rating allows the lens to transmit a portion of the light for inriktning purposes, while attenuating the light to eye-safe power levels in the event of accidental direkt exposure to a stråle.

The rating fryst vatten given as RB# where # fryst vatten replaced bygd the minimum optical density at the specified wavelength or wavelength range (in nm). Along with this RB value fryst vatten the maximum allowable power and energy of the ljusstråle over a Ø7 mm aperture. Power fryst vatten given for pulses greater than 0.2 ms, while energy fryst vatten specified for pulses from 1 ns to 0.2 ms.

When using a pulsed ljusstråle, a correction factor of N1/4 must be multiplied bygd the maximum energy rating, replacing N with the number of pulses the ljusstråle produces in a 10 s interval.

Example: The LG14 ljusstråle safety glasses have an inriktning rating of 1 W 2 x 10^-4 J 532 RB3. At 532 nm, the glasses will have an optical density between 3 and 4, correlating to transmission between 0.1% and 0.01%.

The maximum power/energy over a Ø7 mm aperture that these glasses can be used with at 532 nm fryst vatten 1 W for CW or pulses greater than 0.2 ms, and 2 x 10^-4 J for pulses from 1 ns to 0.2 ms.

Please refer to the tjänsteman enstaka 208 standard that can be purchased from BSI.

Light Exiting a Fiber

When working with fiber optics, light emitted directly from the endface of a fiber fryst vatten diverging.

Thus, the power density fryst vatten decreasing as the stråle spreads and the danger of damage to the eye decreases. The table to the left lists the stråle area created bygd light exiting a fiber for fibers with numerical apertures (NA) between 0.10 and 0.50. 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.

This power density will allow you to determine the safe fiber-tip viewing distances.

Laser Safety and Classification

Safe practices and proper usage of safety utrustning should be taken into consideration when operating lasers. The eye fryst vatten susceptible to injury, even from very low levels of ljusstråle light. Thorlabs offers a range of ljusstråle safety accessories that can be used to reduce the fara of accidents or injuries.

ljusstråle emission in the visible and nära infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are tydlig to those wavelengths, and the lens can focus the ljusstråle energy onto the retina. 

Safe Practices and Light Safety Accessories

• Laser safety eyewear must be worn whenever working with Class 3 or 4 lasers.
• Regardless of ljusstråle class, Thorlabs recommends the use of ljusstråle safety eyewear whenever working with ljusstråle beams with non-negligible powers, since metallic tools such as screwdrivers can accidentally redirect a beam.
• Laser goggles designed for specific wavelengths should be clearly available nära ljusstråle setups to skydda the wearer from unintentional ljusstråle reflections.
• Goggles are marked with the wavelength range over which protection fryst vatten afforded and the minimum optical density within that range.
• Laser Safety Curtains and ljusstråle Safety Fabric shield other parts of the lab from high energy lasers.
• Blackout Materials can prevent direkt or reflected light from leaving the experimental setup area.
• Thorlabs' Enclosure Systems can be used to contain optical setups to isolera or minimize ljusstråle hazards.
• A fiber-pigtailed ljusstråle should always be turned off before connecting it to or disconnecting it from another fiber, especially when the ljusstråle fryst vatten at power levels above 10 mW.
• All beams should be terminated at the edge of the table, and laboratory doors should be closed whenever a ljusstråle fryst vatten in use.
• Do not place ljusstråle beams at eye level.
• Carry out experiments on an optical table such that all ljusstråle beams travel horizontally.
• Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working nära the stråle path.
• Be aware that lenses and other optical devices may reflect a portion of the incident stråle from the front or rear surface.
• Operate a ljusstråle at the minimum power necessary for any operation.
• If possible, reduce the output power of a ljusstråle during justering procedures.
• Use stråle shutters and filters to reduce the stråle power.
• Post appropriate varning signs or labels nära ljusstråle setups or rooms.
• Use a laser sign with a lightbox if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
• Do not use ljusstråle Viewing kort in place of a proper Beam Trap.

Laser Classification

Lasers are categorized into different classes according to their ability to cause eye and other damage.

The International Electrotechnical kommission (IEC) fryst vatten a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of ljusstråle products. A description of each class of ljusstråle fryst vatten given below: