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IR/UV Sensor Screens

LUMITEK IR Sensor Cards work on a principle known as "Electron Trapping", where phosphor-based compounds are employed to absorb and "trap" incoming light energy from a short wavelength, and release that stored light in the form of visible light upon stimulation from a longer IR wavelength. The visible result is a localized glow which is relative in intensity to the amount of stored light and IR power levels exciting the active area.

Please contact to "info@tegascience.co.jp" for further information or quotation.

About IR/UV Sensor Screens

LUMITEK infrared Sensors contain special materials that will emit visible light when illuminated by infrared light from such sources as infrared lasers or light emitting diodes (LED).
The sensors require brief excitation by daylight, fluorescent, or any normal indoor light source in order to operate. Such "charging" may be accomplished in less than a minute, after which the phosphor is ready to detect and display infrared light. The phosphor cannot be overcharged even in full sunlight. The material has the capacity to remain charged for long periods.

Phosphor Sensitivity

ET Phosphor Q-11 Q-16 Q-32 Q-42
Peak Emission Wavelength
(nm)/Color
625/Orange 485/Blue-Green 650/Red 640/Deep Orange
IR Wavelength Range(µm) 0.7 - 1.4 0.7 - 1.4 0.8 - 1.7 0.7 - 1.6
Min IR Intensity
(Dark)
12µW/cm2 10µW/cm2 8µW/cm2 3µW/cm2
Min IR Intensity
(Room Light)
500µW/cm2 500µW/cm2 500µW/cm2 100µW/cm2
Pump Wavelength visible....UV visible....UV visible....UV visible....UV
Resolution
(Typical)
3 Lp/mm 3 Lp/mm 3 Lp/mm 3 Lp/mm

IR/UV Sensor Screens

Laminated IR Sensor Screens

The laminated reflective (R) and transmissive (T) sensor screens are the most commonly used basic sensor products. The phosphor layer is laminated between clear plastic for a wide range of near-IR detection and imaging applications. These are our most popular sensor screens and are provided with a standard size measuring 2.5x4 inches overall with a 2x2 inch active phosphor area. RW and TW type screens apply double amount of phosphor materials.

<Product Number>
Q-**-R/T
Active Area(mm):51 x 51
Total Card Area(mm):102 x 64

Q-**-RW/TW
Active Area(mm):51 x 51
Total Card Area(mm):102 x 64

Q-**-R45/T45
Active Area(mm):127 x 102
Total Card Area(mm):184 x 108

Laminated UV Sensor Screens

Unlike upconverting phosphors, U-21 downconverts UV to red visible. Broadly sensitive from 250nm to 500nm, it emits a red glow under UV impingement. The red emission is particularyly useful since UV laser goggles allow the red emission to be seen clearly through the UV safety goggles. The card is laminated in plastic except for the active phosphor area which permits UV transmission.

<Product Number>
U-21-R/T
Active Area(mm):51 x 51
Total Card Area(mm):102 x 64

Laser Beam Alignment Screens

Phospher materials are placed on a rigid polycarbonate substrate (1/8" thick). The plastic sensor screen is 2"x4" and comes with either a concentric circle (CCR/CCT) or x-y axis silk screened reticle pattern (APR/APT). All are available in either transmissive or reflective mode screens. Each plate can be clamped, drilled and bolted or otherwise affixed to various fixtures for parmaent installation. The transmissive mode plates are made of clear plastic and the reflective ones are on opaque white acrylic so the image is viewable from the front only, and are therefore brighter than the transmissive screens.

<Product Number>
Q-**-CCR/CCT
Q-**-APR/APT
Active Area(mm):51 x 51
Total Card Area(mm):102 x 51
Thickness(mm)   :3

Optical Glass Sensor Screens

Optically clear 27mm and 54mm diameter glass covered with your choice of one of the phosphors is adhered to one side of the glass substrate. IR radiation emitting from your laser or LED source will be visualized from both the front and the back of the circular glass sensor screen.

<Product Number>
Q-**-SCR27(for IR)
U-21-SCR27(for UV)

Diameter(mm):27
Thickness(mm):2~2.4

Q-**-SCR54(for IR)
U-21-SCR54(for UV)

Diameter(mm):54
Thickess(mm):2~2.4

High Temperature Sensor Screens

For use with IR laser sources ( ND-YAG & CO2 ) that would burn through the standard sensor card. These screens measure 2.5" x 4" and have an active phosphor area of 2" diameter. For CO2 lasers use the thermally activated model CF-16. This sensor needs about 1 watt/cm2 or 1 to 2°C increase in temperature where IR impingement takes place compared to the surrounding phosphor. A long wave UV lamp may be needed to keep the phosphor emitting. The CQ42-R is high temperature tolerant but only needs 1/4 to 1/2mw/cm2 of IR impingement in daylight. In dim light it only needs about 20-30µw/cm2 impingement.

<Product Number>
CQ-**-R
Active Area(mm):φ51
Total Card Area(mm):114 x 76

Large Area IR Image Screens

Large area imaging screens use sensitive ET phosphor. This screen is supplied mounted in a black heavy-duty aluminum frame with standard camera tripod mount. Useful in far-field IR studies or imaging highly diverged IR beams. Additionally can be used in detecting covert activity using IR laser beams. Serves to locate escaping IR beams from an IR laser materials processing work station. Excellet for photographing IR beam patterns for a permanent record of th IR activity.

<Product Number>
Q-**-LASR35(Reflective type only)
Active Area(mm):178 x 127

Q-**-LASR80(Reflective type only)
Active Area(mm):254 x 203

Q-**-LASR154(Reflective type only)
Active Area(mm):356 x 279

Adhessie-backed IR Sensor Screens

Thin flexible screens may be cut into any desired configuration and bonded to most surfaces by peeling the protective back and pressing in place. The phosphors are coated on transparent Mylar with a membrane adhesive back. The sensor screen will have the greatest IR sensitivity when bonded to a reflective material but may be applied to transparent material for viewing from both sides of the screen. All of our phosphors come in this format.

<Product Number>
Q-**-ADQ22
Size(mm):51 x 51

Q-**-ADQ44
Size(mm):102 x 102

Q-**-ADQ80
Size(mm):203 x 254

Adhessie-backed UV Sensor Screens

Thin flexible screens may be cut into any desired configuration and bonded to most surfaces by peeling the protective back and pressing in place. The phosphors are coated on transparent Mylar with a membrane adhesive back. The sensor screen will have the greatest UV sensitivity when bonded to a reflective material but may be applied to transparent material for viewing from both sides of the screen.

<Product Number>
U-21-ADQ22
Size(mm):51 x 51

U-21-ADQ44
Size(mm):102 x 102