Marked playing cards are those with special markings to help poker players and magicians to identify the suits and values of the hand. The markings are only visible to a camera, and are not visible to naked eye.
IR Copag marked cards are safer than other cheating instruments like luminous ink lenses or luminescent marker glasses. Only an infrared camera can see these cards.
Infrared ink
Invisible ink technology has become advanced and can even be utilized to mark cards. High-end printers create marks on the sides and back of cards. To read the markings you’ll also require other devices. This can make the process more expensive, but it is definitely worth it. Ink that is invisible is also able to last a long duration.
An ink formulation that is completely invisible to the human eye, but easily readable with infrared light has been created. The ink is based on silicon(IV) 2,3-naphthalocyanine bis(trihexylsilyloxide), which has strong absorbance in the IR and excellent transmitting characteristics in the visible. The ink is suitable for offset printing, the printing of lithographic prints or flexographic printing as well as rotogravure.
IR inks transmit infrared, while block UV and visible light. A professional LS108A/LS108D lens transmission meter can detect the inks. It can measure the transmittance of IR inks at 550nm and 840nm. It is excellent in detecting fake pens and other products that utilize invisible inks. It can also be used for measuring the amount of ink in the pen. The most efficient IR inks need to have a low reflectance, and the highest transmittance, which is 840nm.
Infrared contact lenses
Modern infrared marked cards utilize invisible inks that are visible only at 900 nanometers on the light spectrum. The card’s user is able to read the marks on the card without drawing attention from the other players. Cheaters are wearing IR lenses to prevent being caught. They can see and read the markings from a distance. They are typically worn in glasses or sunglasses that look like designer frames, so that they can be used without drawing attention from the fashion police.
Sandwich Technology is used in these contacts. This lets the filter stay embedded within the interlayer. It also makes sure that the eyes of the user are not directly touching the filter. They’re safe for any color of eyes and won’t change your pupil’s colour. They are comfortable and wearable all day long.
The prototype was constructed with a wireless LED embedded in an optical contact lens that is soft. The device was created using chemically crosslinking silicone to form a shell around an ASIC chip as well as a far-red/NIR LED. The ASIC chip is then coupled to a custom-designed power amplifier that wirelessly transfers electric power to the far LEDs that emit light. The transmitter coil was mounted on a poly(ethylene terephthalate) (PET) film, which was then passivated by Parylene C. The infrared receiver triggered the lens electronics by sending the infrared signal at 600 Hz that caused an AC voltage to the electrodes of the LC insert layer, shifting it by an electric field.
Infrared camera
Infrared is a technology based on heat, unlike night vision which is based on light to create images. It can be utilized for a number of purposes including medical, industrial and security applications. Infrared imaging is a crucial tool for firefighters to locate individuals in smoke-filled areas and spot hotspots. This increases safety and effectiveness. It is also used to identify gaps in insulation and air leaks in ventilation, heating, and air conditioning systems. It can help reduce energy use and increases the efficiency of HVAC systems.
Infrared cameras utilize a photon-converting detector, often Indium Gallium Assenide (or microbolometer) that measures low frequency electromagnetic radiation that is absorbed as heat. This data is transformed into a digital image. The image may be displayed on the camera’s display or transmitted to a computer where it will be analysed and reported. The majority of top thermal cameras have software that transforms the data into visual representation of temperature changes, which is often displayed as a color matrix. Warmer regions are highlighted in red while cooler regions are displayed in blue.
Documentation is required by most IR inspections and business. It is crucial therefore to have an infrared scanner that creates clear and precise reports. A lot of manufacturers offer free software that can be used for basic image analysis and report-making, while more advanced software is available to provide more detailed imaging and customizing reports.
Infrared sensor
The technology behind an infrared sensors is utilized in a range of security applications, including motion detection. The sensor will send a signal to the embedded system when it detects changes in the infrared emission of an object. The alarm is then activated. It also triggers other security systems, including automated doors or video recording. Infrared sensors can be used to detect the presence a person and activate a door-opening mechanism that doesn’t require a key.
Most commonly, infrared sensors can be employed for motion detection. They make use of two pyroelectric elements to detect infrared energy and then generate an electronic signal when objects pass within their zone of. The sensors can also be used to determine distances by measuring the length of time it takes IR light to bounce back.
Although these sensors can be useful in securing buildings, they are vulnerable to environmental conditions. Sensors are susceptible to being confused by abrupt temperature fluctuations or excessive humidity, leading to false alarms. Additionally, dust and dirt may build up on the lens of the sensor in time, which could hinder its ability to detect infrared radiation.
To overcome these issues It’s crucial to take into consideration the area and surroundings in which an infrared detector will be placed. It’s also important to carry out periodic inspections and professional maintenance on infrared sensors from time to time then. This will help ensure that the sensor is operating effectively and an object is detected accurately.