actinic radiation meaning

Noun: actinic radiation  ak'tinik `reydee'eyshun

1. Electromagnetic radiation that can produce photochemical reactions
   - actinic ray

Derived forms: actinic radiations

Type of: electromagnetic radiation, electromagnetic wave, nonparticulate radiation

Part of: electromagnetic spectrum

Encyclopedia: Actinic radiation

Examples

1. Many other ways of chemical and actinic radiation " exposure " can be utilised for the partial image reversal.
2. The phototool is placed over the photo-resist layer and irradiated with actinic radiation, such as ultraviolet ( UV ) light.
3. This causes the photo-resist layer which is exposed to the actinic radiation to polymerize and harden, thus producing a latent negative image of the desired circuitry in the photo-resist layer.
4. The unexposed areas of the photo-resist layer which have not been exposed to actinic radiation are then removed using mildly aqueous alkali to expose the copper surface, and this is then removed by chemical etching, thus resulting in a dielectric substrate containing the required copper circuitry covered by polymerized photo-resist.
5. 3D Systems has applied for patents for the following innovations and technologies : the rapid prototyping and manufacturing system and method; radiation curable compositions useful in image projection systems; compensation of actinic radiation intensity profiles for 3D modelers; apparatus and method for cooling part cake in laser sintering; radiation curable compositions useful in solid freeform fabrication systems; apparatus for 3D printing using imaged layers; compositions and methods for selective deposition modeling; edge smoothness with low resolution projected images for use in solid imaging; elevator and method for tilting solid image build platform for reducing air entrapment and for build release; selective deposition modeling methods for improved support-object interface; region-based supports for parts produced by solid freeform fabrication; additive manufacturing methods for improved curl control and sidewall quality; support and build material and applications.