The Morton Arboretum welcomes visitors with service animals to Illumination. Please note that pets are not permitted at the Arboretum except on special dog admission days.

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2021420 — An ideal point source emits light uniformly in all directions, and a positive spherical lens placed one focal length (f ) away collimates the ...

The Illumination trail is a one-mile paved path that is ADA compliant. The exhibition is not visible or accessible by car.

The ultraviolet light meter can intelligently identify the probe model and the probe will adapt the display interface automatically, providing different unit selections based on the identified probe model. The UV meter has a real-time power value, maximum value, minimum value, average value, measurement time, and energy value that can be displayed at the same time.

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The amount you save varies, but the prices listed for each date will always be the lowest option at that time, for that particular date. Prices will never decrease but they may increase, so buying ahead is always your best option.

Prices are determined based on a number of factors, including attendance patterns, popular holidays and special events, and weather. For busier periods with higher estimated attendance, prices will reflect high demand. For quieter attendance days, prices will be lower.

Spotlight illuminates with a burst of teal, pink, and silver iridescent flakes, perfect for adding a radiant touch to any manicure. Layer over your favorite ...

Please note that although AnyDay tickets have one date indicated, they are valid for any Illumination date. AnyDay tickets are not valid for IllumiBrew or Electric Illumination.

Light wave complexity is a description of the saturation level (or length) of light waves. Each single pure wavelength of light is considered a saturated level.

Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

Exciting features and immersive installations in this festive experience will delight all ages along a one-mile path that is fully ADA compliant.

Craft beer lovers won’t want to miss IllumiBrew. At this event for adults 21 and older on Friday, November 15, enjoy a first look at the newest version of Illumination while sampling local brews along the trail.

Ticket holders who make the choice not to attend Illumination based on their personal circumstances may request a ticket exchange, depending on schedule and ticket availability, for a $1 fee per ticket. Refunds are not available. Once the event date and time have passed, rebooking is no longer an option.

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Only dates and times that are still available will show during the rebooking process. Once the event date and time have passed, rebooking is no longer an option.

Monday, November 18 Tuesday, November 19 Monday, November 25 Thursday, November 28 (Thanksgiving) Monday, December 2 Monday, December 9 Tuesday, December 10 Monday, December 16 Tuesday, December 17 Tuesday, December 24 (Christmas Eve) Wednesday, December 25 (Christmas Day)

Celebrate the holidays and marvel at how light transforms a magnificent landscape at Illumination: Tree Lights at The Morton Arboretum.

The Arboretum has a small number of nonmotorized wheelchairs available on loan free of charge in the Visitor Center on a first-come-first-serve basis. Guests must leave a driver’s license or other photo ID to check out a wheelchair. Because the supply is limited, we recommend bringing a wheelchair to the Arboretum, if one is needed. Personal mobility scooters may also be used on the trail.

A full dining and beverage menu featuring freshly made sandwiches, salads, burgers, and more is available from the Ginkgo Restaurant, located inside the Visitor Center. The restaurant is open until 8:00 p.m. during Illumination. Guests can purchase sandwiches, salads, and soups, along with assorted alcoholic and nonalcoholic beverages.

Illumination ticket purchases are nonrefundable. However, guests may be able to exchange tickets in advance for a fee of $1 per ticket, depending upon event capacity and at the discretion of the Arboretum. Tickets can be rebooked (prior to their original start time) using the Arboretum Rebooking Tool. Guests who need additional assistance can also email the help desk or call 630-725-2066.

Our technique can estimate lighting for a variety of input images, such as indoor and outdoor scenes, close-up shots, paintings, and photos of human faces.

With plan-ahead pricing for Illumination and Electric Illumination, choose the price, date, and time that best fit your budget and schedule. The further in advance you purchase your tickets, the more you save!

Arboretum members receive the lowest ticket prices, with a 20% discount on all tickets. Become a member to get the best pricing for Illumination tickets.

Electric Illumination offers a special late-night experience from 8:30 to 10:00 p.m. on three special weekends in November and December, each with a unique theme. Adults 18 and older will enjoy a curated playlist of music synchronized to breathtaking light displays.

Warm up by a crackling fire and roast marshmallows for s’mores, stop in at the concession tent on Frost Hill for snacks and beverages, or sit down to a delicious meal at the Ginkgo Restaurant to view a laser light finale on Meadow Lake.

This Illumination-specific discount is an extension of the popular Museums for All program, a partnership between the Institute of Museum and Library Services (IMLS) and the Association of Children’s Museums (ACM).

If you do not have a disability placard and someone in your party has mobility concerns, you are also welcome to drop off passengers in the circle drive adjacent to the Visitor Center before you park. Please notify the parking attendants and they will direct you accordingly.

SISCO UV meter is commonly used across various industries to measure ultraviolet (UV) light intensity. Key applications include monitoring and controlling UV curing processes in manufacturing, ensuring proper UV sterilization in water treatment and healthcare, and assessing UV exposure levels in environmental testing and research. These meters are crucial for maintaining product quality, safety, and compliance with industry standards in sectors such as printing, electronics, pharmaceuticals, and environmental science.

A temperature-activated, color-changing ceramic mug will be available to purchase for $18 (price includes tax) on all Illumination and Electric Illumination dates. The purchase includes any warm beverage choice (alcoholic or nonalcoholic). The mug will feature a photo of the Treemagination light display, which appears once the mug is warm.

Only dates and times that are still available will show during the rebooking process. Once the event date and time have passed, rebooking is no longer an option.

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Q2: What types of UV radiation can a UV Meter measure?A2: A UV meter is capable of measuring various types of UV radiation, including UVA (320-400 nm), which is commonly used in tanning and curing processes; UVB (280-320 nm), which plays a key role in environmental monitoring and healthcare, particularly in skin-related studies; and UVC (100-280 nm), which is highly effective in sterilization and disinfection. Each type of UV radiation has specific applications, and a UV meter can be designed to measure one or multiple types depending on its sensors and filters.

Plan-ahead pricing is adjusted daily based on a variety of factors, such as remaining tickets available, weather conditions, and most popular times. As those variables change, ticket prices may go up for particular times and dates. Prices will not go down from those listed at the time you check the website. The further in advance you purchase your tickets, the more you save.

Please note that there will be a $1 charge per ticket for any changes made to Illumination tickets, plus any changes in the price of the tickets.

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Please note that this tool is currently only available for use when rebooking Illumination or Electric Illumination tickets.

A secluded glade is strung with fairy lights, kinetic LED tall grasses honor a Midwest native species, and trees light up with a hug. New this year, Celebration Circle is an interactive light display in The Gerard T. Donnelly Grand Garden featuring four sets of illuminated tree-shaped installations, each synced to the music of a different instrument.

Arboretum members receive the lowest ticket prices, with a 20% discount on all tickets. Become a member to get the best pricing for Illumination tickets.

Warm up by a crackling fire and roast marshmallows for s’mores, stop in at the concession tent for snacks and beverages along the Illumination trail, or sit down to a delicious meal at the Ginkgo Restaurant in the Visitor Center while you view a laser light finale on Meadow Lake.

New for 2024 is an Illumination sensory evening on Tuesday, December 3, from 4:30 to 9:30 p.m.; last entry is at 8:00 p.m. This modified experience will feature static lights and music at low volume. Tickets are available in a limited capacity for the event on this night to provide a sensory-sensitive environment.

The Morton Arboretum offers a way to make changes to existing ticket reservations for Illumination and Electric Illumination ticket holders. You can use this rebooking tool if you are changing your tickets from one date to another, even if there is a cost difference between the two dates.

Through the Arboretum’s participation in the Museums for All program, a limited number of reduced-rate Illumination tickets are available on select dates for guests with a state-issued Electronic Benefits Transfer (EBT, P-EBT or LINK) card, or a valid WIC card.

Please be aware that Illumination features moving and flashing lights along the trail. There are no strobe lights in the exhibition. Laser features are directed away from guests and follow International Laser Display Association safety standards.

There is something for everyone to enjoy during Illumination! This enchanting event is perfect for celebrating the holiday season, special occasions, family outings, date nights, or wintertime fun with friends.

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Illumination AnyDay tickets are special, single-use tickets that can be used once by either an adult or a child (age 4 and older), at any entry time, on any day of Illumination.

If the Arboretum cancels a night of Illumination (in whole or part), we will accommodate ticket holders according to the cancellation policy.

Guests may borrow sensory supports such as headphones, sunglasses, fidgets, or a copy of the Illumination social narrative (English, Spanish) when they arrive. Guests can use the social narrative to help prepare for their visit. Any loaned items should be returned to the Information Desk in the Visitor Center before departure.

Illumination AnyDay tickets are special, single-use tickets that can be used once by either an adult or a child (age 4 and older), at any entry time, on any day of Illumination.

Q1: What is a UV Meter?A1: A UV meter is a device that measures the intensity of ultraviolet (UV) light, often across different wavelengths like UVA, UVB, and UVC. It’s used in industries like manufacturing, healthcare, and environmental science to monitor and control UV exposure for processes like curing, sterilization, and environmental testing.

Support the Arboretum’s work to create a greener, healthier, more beautiful world where people and trees thrive together.

New for 2024 is an Illumination sensory evening on Tuesday, December 3, from 4:30 to 9:30 p.m.; last entry is at 8:00 p.m. This modified experience will feature static lights and music at low volume. Tickets are available in a limited capacity for the event on this night to provide a sensory-sensitive environment.

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Light microscopes are also called optical microscopes. They use light to perform magnified observation of microscopic targets such as bacteria and blood cells.

If you have questions, you can contact the ticket line by email at tickets@mortonarb.org or by phone at 630-725-2066, Monday through Sunday (excluding holidays), 9:00 a.m. to 4:00 p.m.

SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

Yes. The Illumination trail is a one-mile paved path that is ADA compliant and fully accessible to guests with limited mobility. Please see the Illumination Accessibility section for more information.

Sep 12, 2022 — The direction of polarization is defined to be ... polarizing sunglasses cut the glare in reflected light, because that light is polarized.

Arboretum staff make best efforts to clear the path of ice and snow. Crowds are generally lighter on Tuesday, Wednesday, and Thursday, making it easier to navigate the trail.

On days with four or more inches of snow, Illumination attendees are welcome to bring snowshoes or cross-country skis to the Arboretum during usual daylight hours. During Illumination, the East Side of the Arboretum will close at 3:00 p.m. to prepare for opening of the exhibition each evening at 4:30 p.m. Only the West Side is available for skiing or snowshoeing prior to mid-January, when Illumination equipment is removed on the East Side). Once Illumination is over rentals will be available based on snowfall.

To look up an existing order, enter your order ID and last name in the field below. You can find your order ID listed on the “Order Summary” email that was sent to you from tickets@mortonarb.org.

A UV meter is generally effective with most UV light sources, but its effectiveness depends on the type of UV light it is designed to measure.

November 17, 20, 21, and 24 December 1, 4, and 5 December 8, 11, and 12 December 18, and 19 December 26 through January 4

Tickets for available dates and times can be purchased online or in person. Up to 10 Museums for All tickets can be purchased. When buying tickets online, a valid LINK or WIC card is required to receive the discounted rate. Online ticket purchasers will receive an email confirmation and must show a valid LINK or WIC card with their tickets at the entrance on the night of the event.

The Arboretum has the expertise and advice to help you beautify your home landscape, improve your community, and advocate for trees.

Monday, November 18 Tuesday, November 19 Monday, November 25 Thursday, November 28 (Thanksgiving) Monday, December 2 Monday, December 9 Tuesday, December 10 Monday, December 16 Tuesday, December 17 Tuesday, December 24 (Christmas Eve) Wednesday, December 25 (Christmas Day)

Through the Arboretum’s participation in the Museums for All program, a limited number of reduced-rate Illumination tickets are available on select dates for guests with a state-issued Electronic Benefits Transfer (EBT or LINK) card, or a valid WIC card. Tickets may be purchased online or in person, as long as the date and time is not sold out. When buying tickets at the gatehouse, purchasers are required to show a valid LINK or WIC card to receive the discounted rate. When purchasing online, purchasers will receive an email confirmation and must show a valid LINK or WIC card with their tickets at the entrance on the night of the event.

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Parking is available near the entrance for those with a disability placard on their vehicle—please notify the parking attendant as you drive in. Otherwise, parking is first come, first served, and is directed by parking attendants.

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Guests directed to a secondary lot (Parking Lot 21), near the Thornhill Education Center on the Arboretum’s West Side, can take advantage of a shuttle bus that will transport them to the main event area. Please note that this is the only shuttle bus during Illumination and it only runs between Parking Lot 21 and the Visitor Center. The bus does not have a wheelchair lift.

A concession tent located on Frost Hill along the Illumination trail will serve snacks and hot beverages. S’mores are available for roasting on the fire pits. The concession tent will be open from 4:30 to 9:00 p.m. during Illumination.

Located in Centennial Plaza in The Grand Garden, Celebration Circle is a new Illumination experience featuring four interactive sets of abstract trees. Each tree lights up with dynamic colors that are synced to a different instrument: grand organ, bass, bells, and strings.

Tuesday, December 3, from 4:30 to 8:00 p.m., will be a sensory evening of Illumination, new for 2024. This quiet walk will feature static lights and music at low volume.

Prices for Illumination and Electric Illumination vary based on the day and time. Plan-ahead pricing allows you to get the best deal on Illumination and Electric Illumination tickets when you buy in advance. The farther in advance you purchase tickets, the more you save!

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Through the Arboretum’s participation in the Museums for All program, a limited number of reduced-rate Illumination tickets are available on select dates for guests with a state-issued Electronic Benefits Transfer (EBT, P-EBT or LINK) card, or a valid WIC card.

New for 2024 is an Illumination sensory evening on Tuesday, December 3, from 4:30 to 9:30 p.m.; last entry is at 8:00 p.m. This modified experience will feature static lights and music at low volume. Tickets are available in a limited capacity for the event on this night to provide a sensory-sensitive environment.

Ticketed Illumination and Electric Illumination guests may enter the Visitor Center to eat, shop, and use the restrooms after the entry time on their tickets. Illumination guests who arrive before 4:30 and need a warm place to wait may do so in the hallway in front of the west pavilion restrooms.

Because Illumination is an outdoor event in winter, on very rare occasions the Arboretum may cancel an evening or temporarily close the event until weather passes. Many factors are considered, including predictions from the National Weather Service and other weather services, before making a decision that has an impact on guests. If Illumination is canceled or temporarily closed for part of an evening, ticket holders will be notified via email, and notice will be posted to the Arboretum’s website homepage. We will honor tickets on alternate nights, schedule permitting. For more information, email or call the ticket line at tickets@mortonarb.org or 630-725-2066 between 9:00 a.m. and 4:00 p.m. daily (except holidays).

For more information, use the Arboretum Rebooking Tool, email the help desk, or call the ticket line at 630-725-2066 between 9:00 a.m. and 4:00 p.m. daily (except holidays).

Illumination ticket holders may enter the Arboretum after 4:30 p.m., but will not be able to access the Illumination trail or Visitor Center until the time listed on their tickets. Due to often cold weather conditions, we encourage ticket holders to arrive as close as possible to the time on their tickets for the best experience.

Event tickets may always be added to general admission reservations; however, we encourage you to purchase Illumination tickets in a separate transaction, if possible, to ensure that the scan codes are kept separate.

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Q3: Can a UV Meter measure UV radiation from sunlight?A3: Yes, a UV meter can measure UV radiation from sunlight. It’s commonly used in environmental monitoring to assess the levels of UVA and UVB radiation, which are the types of UV light that reach the Earth's surface. This information is crucial for understanding UV exposure risks, studying environmental impacts, and ensuring public safety.