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Ricoh’s technical strengths are built on the tradition of “optical technology” the company has continued since its foundation.

The "Ricoh" name comes from the "Ri" of "Riken" and "Coh", written with the character for light.
"Riken" is the name of an institute of physical and chemical research, founded in Japan in 1917 to carry out research in fields such as physics, chemistry, engineering, biology, and medicine*1. Ricoh was founded in 1936 as "Riken Kankoshi Co., Ltd.", in order to sell the photosensitive paper developed by Riken.
Its name was later changed to "Riken Optical Co., Ltd.", and then, with further expansions in the range of products and services, the name was changed again in 1963, to the current name, "Ricoh Company, Ltd."

Ricoh's "optical technology", which began with photosensitive paper, have gone on to include lenses, mirrors, lasers, and other optical components, as well as copiers and multifunction printers, printers, fax machines. These optical technologies have become the foundation of Ricoh's technical strengths, applied to fields such as office solutions, printing, imaging, and devices, creating a wide range of products and services.

*1 RIKEN

Controlling Total Light —Free-Form Mirrors and Precision Molding Technology—

The PJ WX4130/WX4130N ultra-short-throw projector was launched in 2011. This is the product that Ricoh's optical technologies have created. The PJ WX4130/WX4130N can project a large 48 inch image onto a screen or wall from a distance of just 11.7cm.
This ultra-short-throw projector, designed with an emphasis on short focal distance, contains an optical mechanism which uses a special curved plastic mirror called a free-form mirror. We at Ricoh use our own unique precision molding technologies*1 and processing technologies to create the high precision plastic mirrors that make it possible for this projector to display large images at close distances, without distortion.

Controlling Total Light —Free-Form Mirrors and Precision Molding Technology—

1: PJ WX4130/WX4130N
2: Free-form mirror
3: Free-form mirror and inflected optical system


*1 Ricoh has been awarded the Okochi Memorial Technology Award in the field of precision molding technology for "notable contributions to Japanese industrial engineering, research and development of manufacturing technologies, and implementation of advanced manufacturing methods".
*2 A ball-point pen is distorted when reflected in a free-form mirror. The mirror comprises multiple curves between its center and periphery to project a distortion-free image from an ultra-short distance.

Creating Light with Semiconductors —Laser Light Source (VCSEL) and Light Control Technology (VCSEL Controller)—

Production printing has the increasingly diverse printing needs of the commercial print market. The ultimate in "optical technology" is seen in Ricoh's production printers as well. Ricoh has developed the first-emitting semiconductor called VCSEL(Vertical Cavity Surface Emitting Laser) and its controller, that enabled precise and high-density laser writing using 40 beams in a space of 1mm2.
This mechanism is applied to the RICOH Pro C751EX/C651EX, making characters and fine lines clearer, and offering a high resolution of 4800dpi, for even clearer image reproduction. This is why we can provide printing environments requiring high image quality and high speed.

With long years of research and development in "optical technology" as the core, we at Ricoh provide new value to the customers through products and services.

Creating Light with Semiconductors —Laser Light Source (VCSEL) and Light Control Technology (VCSEL Controller)—

1: RICOH Pro C751EX/C651EX
2: Ricoh's 40 channel VCSEL, with 40 light sources within a space of less than 1mm2
3: VCSEL and VCSEL Controller


Related Links
The Evolution of Ricoh Optical Technology
The Evolution of Ricoh Optical Technology2The Evolution of Ricoh Optical Technology2The Evolution of Ricoh Optical Technology2The Evolution of Ricoh Optical Technology2 Projector Product Information
* Please visit your local website to find detailed information on our products.
Free-Form Mirror and Deflection Technology for Ultra-Close-Range Projection
Precision Mold Technology
Production Printer Product Information
* Please visit your local website to find detailed information on our products.
40-Channel Vertical Cavity Surface Emitting Laser (VCSEL) Array
Front Runner "Growing Seeds for the Future, Sometimes in the Dark" (VCSEL Developer's Story)

You can read the articles in Japanese
Go to the Ricoh Japanese website