Speaking of holographic technology, people immediately think of holographic three-dimensional images or colorful laser anti-counterfeiting images. In fact, the application of holographic technology is far more than these. Such as supermarket bar code scanners also use this technology. It is worth mentioning here that Holotek Corporation has been working on the development of holographic imaging technology for 18 years and has more than 15 U.S. patents in this area . Its applications include laser imagesetters and direct plate-making systems, and electrostatic photocopying. Systems, X -ray systems, semiconductor manufacturing flaw detection equipment, and image recording systems for filming. In 1996 , Holotek was acquired by ECRM , which incorporated these patented technologies into the ECRM product line. Optical components now using holographic technology have been applied to the ECRM series of laser imagesetters and direct platesetters and have been successful in the market. This benefits from the precise imaging characteristics of the holographic system, which allows the image output speed and image quality to be perfectly united.
The secret of ultra-high speed holographic imaging technology  Â
Compared to other laser imagesetters, the output speed of a laser image-setter using holographic technology is said to be up to 72 inches per minute. In fact, there is still potential for further holographic imaging to be tapped.
Although the imaging speed using holographic technology has increased exponentially, the imaging system itself does not look particularly surprising. The core part of the system consists of a holographic refractor, which looks like a thick, common disc with its surface divided into 5 or 6 parts. Like traditional rotating mirrors, holographic refractors are mechanisms that allow the laser beam to scan an image on a photosensitive material. The faster the mirror rotates, the faster the imagesetter can image. However, the speed of a simple mirror reflection system is limited by the speed of the scanning motor.
In holographic imaging systems, the method of increasing the imaging speed is to decompose the beam so that the scanning motor can generate multiple scanning lines per one revolution when imaging. The use of a multi-faceted prism system can also achieve this effect, but in contrast, the latter's operational balance is more difficult to control, thereby adversely affecting the accuracy of the imaging.
The holographic refractor is a positive disk, so it can remain stable at high speeds. Arranged in the circumferential direction of the disc is a dense grating, which can be 5,000 gratings per inch . The entire grating disk is divided into multiple sectors, like a cake cut into several pieces. When the holographic optical mirror rotates, each sector passes through the laser beam, and the beam is refracted when it passes through the grating surface and scanned onto the imaging material. Each sector of the grating disk can produce one scanning line, so grating disk surface 5 per one rotation of the beam scan line 5 can be generated. Compared to a simple mirror reflection system, only one scan line can be generated. The more sectors on the raster disk, the faster the imaging speed .
Holographic imaging technology makes image quality better
The essential difference between a holographic imaging system and a common specular system is that the latter changes the optical path by the reflected beam, while the holographic system allows the beam to pass through the refractor to the imaging surface. Due to the limitation of the manufacturing process, any mirror surface cannot be absolutely flat, and the imaging of the reflection system will be deviated. If the rotation speed of the mirror is increased, the deviation will be exacerbated. Even minor errors will be amplified by the specular reflection system. In holographic imaging systems, this imaging error can be reduced because the light beam is refracted rather than reflected.
In addition, due to the unbalanced structure of the mirror itself, chattering is more likely to occur during high-speed rotation. Therefore, a problem that needs to be solved for the reflective system is to find a way to compensate for the scanning path error. The optical path of the holographic refractor is not sensitive to jitter, which simplifies the structure of the optical system. Therefore, the holographic imaging system can provide higher assurance in terms of optical path accuracy. In fact, the ECRM Tiger Cat series plate-making system using holographic imaging technology is designed for high-precision commercial printing customers.
Holographic Imaging Technology and Titanic
Titanic is one of the most expensive movies in the history of cinema. Many of the grand scenes are dependent on special effects. In order for these special effects to be fully displayed on the screen, holographic imaging technology contributed. In fact, Hollywood's film industry uses holographic imaging technology to record images on film. Such movies include "Batman and Robin" and "The Enemies of the State." In addition to the film industry, many other manufacturers, including the printing industry, also use this technology, including Agfa, DuPont, Kodak, 3M, Monotype, WesternLitho, Xerox, and other manufacturers.
The future of holographic imaging  Â
Holographic technology reduces the cost of optical components. In the field of printed images, the involvement of holographic technology has greatly changed its appearance. In the near future, we will find that laser imaging is faster than film delivery, and manufacturers may need to redesign their equipment to increase the speed at which mechanical transmission of imaging media occurs.
To further develop the performance of holographic imaging technology, there is still some way to go. Although the current raster disk has only 5 or 6 sides, simply increasing the number of raster faces will make the device too large, and it is not easy to overcome the influence of the air flow when the raster disk rotates at high speed. Further development of holographic imaging technology will continue.
The secret of ultra-high speed holographic imaging technology  Â
Compared to other laser imagesetters, the output speed of a laser image-setter using holographic technology is said to be up to 72 inches per minute. In fact, there is still potential for further holographic imaging to be tapped.
Although the imaging speed using holographic technology has increased exponentially, the imaging system itself does not look particularly surprising. The core part of the system consists of a holographic refractor, which looks like a thick, common disc with its surface divided into 5 or 6 parts. Like traditional rotating mirrors, holographic refractors are mechanisms that allow the laser beam to scan an image on a photosensitive material. The faster the mirror rotates, the faster the imagesetter can image. However, the speed of a simple mirror reflection system is limited by the speed of the scanning motor.
In holographic imaging systems, the method of increasing the imaging speed is to decompose the beam so that the scanning motor can generate multiple scanning lines per one revolution when imaging. The use of a multi-faceted prism system can also achieve this effect, but in contrast, the latter's operational balance is more difficult to control, thereby adversely affecting the accuracy of the imaging.
The holographic refractor is a positive disk, so it can remain stable at high speeds. Arranged in the circumferential direction of the disc is a dense grating, which can be 5,000 gratings per inch . The entire grating disk is divided into multiple sectors, like a cake cut into several pieces. When the holographic optical mirror rotates, each sector passes through the laser beam, and the beam is refracted when it passes through the grating surface and scanned onto the imaging material. Each sector of the grating disk can produce one scanning line, so grating disk surface 5 per one rotation of the beam scan line 5 can be generated. Compared to a simple mirror reflection system, only one scan line can be generated. The more sectors on the raster disk, the faster the imaging speed .
Holographic imaging technology makes image quality better
The essential difference between a holographic imaging system and a common specular system is that the latter changes the optical path by the reflected beam, while the holographic system allows the beam to pass through the refractor to the imaging surface. Due to the limitation of the manufacturing process, any mirror surface cannot be absolutely flat, and the imaging of the reflection system will be deviated. If the rotation speed of the mirror is increased, the deviation will be exacerbated. Even minor errors will be amplified by the specular reflection system. In holographic imaging systems, this imaging error can be reduced because the light beam is refracted rather than reflected.
In addition, due to the unbalanced structure of the mirror itself, chattering is more likely to occur during high-speed rotation. Therefore, a problem that needs to be solved for the reflective system is to find a way to compensate for the scanning path error. The optical path of the holographic refractor is not sensitive to jitter, which simplifies the structure of the optical system. Therefore, the holographic imaging system can provide higher assurance in terms of optical path accuracy. In fact, the ECRM Tiger Cat series plate-making system using holographic imaging technology is designed for high-precision commercial printing customers.
Holographic Imaging Technology and Titanic
Titanic is one of the most expensive movies in the history of cinema. Many of the grand scenes are dependent on special effects. In order for these special effects to be fully displayed on the screen, holographic imaging technology contributed. In fact, Hollywood's film industry uses holographic imaging technology to record images on film. Such movies include "Batman and Robin" and "The Enemies of the State." In addition to the film industry, many other manufacturers, including the printing industry, also use this technology, including Agfa, DuPont, Kodak, 3M, Monotype, WesternLitho, Xerox, and other manufacturers.
The future of holographic imaging  Â
Holographic technology reduces the cost of optical components. In the field of printed images, the involvement of holographic technology has greatly changed its appearance. In the near future, we will find that laser imaging is faster than film delivery, and manufacturers may need to redesign their equipment to increase the speed at which mechanical transmission of imaging media occurs.
To further develop the performance of holographic imaging technology, there is still some way to go. Although the current raster disk has only 5 or 6 sides, simply increasing the number of raster faces will make the device too large, and it is not easy to overcome the influence of the air flow when the raster disk rotates at high speed. Further development of holographic imaging technology will continue.