Firefly lithography machine

Firefly is an advanced, single-pass, single-head microlithography startup system that has been developed to produce high-quality holograms; it can record the diffraction characteristics of optical variables, and is suitable for safety applications. Level 1 (naked eye), Level 2 (handheld viewer) and Level 3 (forensic) verification. The Firefly is powered by a dedicated, multi-core, high-end computer with 32 GB of memory and a version of the UNUX operating system customized for computing and control tasks. This operating system selection and configuration makes Firefly a truly safe, reliable, and virus-free machine. The Firefly can be controlled via a touch screen or, upon request, via a shared network-connected device. In order to improve the security of the Firefly, it can only be operated by authorized users, they will insert the provided USBkey into the machine. For hologram designs, the Firefly comes with project management software that uses image files uploaded in standard bitmap formats such as. tiff,. jpg,. png, and. bmp to create the project and expose it as a hologram. Each item is saved as one. The holo file can be uploaded to the Firefly to begin the hologram generation process.

Technical specifications for fireflies

Geometric resolution: 158,750 dpi (317,500 dpi in 2X exposure mode)

Photolithography size range: 200 x 200mm

Spot size: 418nm

Lithography speed: up to 2.5 cm2/hour (1X exposure mode)

Software: Firefly operating software for multiple computers and project managers

Focus Systems: Automation and Optoelectronics

Diffraction grating pitch:> 900um

Optical effect description

The "Firefly" microlithography start system is designed to produce holograms composed of features with basic or high-security optical effects. Firefly all effects can be combined by using layers, which allows one holographic object to be superimposed on another without masking the original image, and also allows holographic effects and objects to be combined in the same area of the hologram, while controlling the relative brightness of each holographic object is still possible.

Basic optical effects

Photo: Photo effect is a photo copy of the uploaded image. Furthermore, an object may be assigned a single depth or a 3d depth range.

Dynamic: When the initial viewing angle changes in the dynamic effect, certain groups of pixels in the object become brighter and others become darker, creating the illusion of motion.

Multi-channel: MultiChannel object contains a series of objects in the same area of origin, where each object has a specific perspective. This effect allows the creation of 3D images as well as animations.

High security optical effect

LayerMask:LayerMask objects are created from a set of binary images that are superimposed on each pixel of the original area, allowing to change their shape. These images can be added to the object sequentially or randomly, and since they can only be seen through high-magnification instruments, they can be used for tertiary verification.

Diffractive and non-diffracting microtext and microimages: Due to its high resolution, Firefly can produce microtext and microimages as small as a few microns. For normal characters, the recommended minimum height is about 25 um in the diffraction mode and about 6 um in the non-diffraction mode.

Fresnel lens: The Fresnel effect is used to create the appearance of a convex or concave lens. Lenses can be displayed as spheres, cones, or pyramids.

Relief: The relief effect creates an object that appears to be an engraving placed on the surface of the final origin.

Hidden: The hidden effect is used for high-security holograms, which are difficult to forge, because the hidden image (hidden image) in the hidden object is not visible at any viewing angle until it is illuminated by a laser or a point source (such as a flashlight).