Fujinon works with clients to design customized applications based upon individual customized project specifications. Beginning from the prototype phase through mass production in our manufacturing facilities in Japan and China, our consistant high-level production sets the standard in customized optical production.
Fine nanometer measurements are carried out for evaluation to ensure that our products maintain the optical performance needed to satisfy customer requirements.
We can supply plastic type diffraction gratings suitable for mass production at low cost as well as the glass types. We also manufacture hologram elements for special applications.
Our plate type and prism type mirrors and half mirrors meet various customer needs as optical parts for all optical discs.
An optical disc has a lens which serves as an "eye" for reproducing data on the disc faithfully. Here again, our Fujinon technology has been made full use of. We have designed a pickup optical system that faithfully reads bits formed in submicron order on the disc and have produced various optical elements (glass object lenses, plastic object lenses, collimator lenses, diffraction gratings, hologram elements, various mirrors etc.)
An ultra-precise aspheric surface generator is installed in a constant temperature humidity clean room to produce nanometer-precise molds required for making precise optical elements.
Our Fujinon optical disc pickup object lenses for audio CD-ROM's, CD-R's and DVD's have been highly evaluated by customers in terms of both quality and price.
Optimum materials satisfying the specifications of each pickup are selected out fo 13 glass molding nitric materials suitable for glass-molded lenses to design and manufacture thee lenses.
Fully automated machines operate 24 hours a day in the clean room. As many as 30 million plastic aspherical lenses are produced each month. These plastic lenses satisfy customer needs in term of quality, price and delivery.
Transmitted wave spherical aberrations of object lenses for CD's and DVD's and of collimator lenses are measured under severe inspection conditions. Astigmatism, coma, spherical aberration, etc. are analyzed and fed back to the manufacturing process for thorough quality control.
Our optical parts coating technique is imperative for electronic devices and information equipment. We make practical use of multilayered reflection reducing coating and have a lot of experience in the use of zoom lenses with multilayered reflection reducing coating and photodissociation optical systems since the color broadcasting via satellite of the Tokyo Olympics in 1964. We have now perfected film designing and manufacturing techniques to meet various needs over a wide range of wavelengths from ultra violet to infrared such as for reflection reducing film and color separation optical systems, ring laser gyroscope mirrors, polarizing beam splitters etc.
Light does not consist of visible rays only and ranges widely from long wavelength infrared to short wavelength ultraviolet. Diachronic filters and mirrors can select a specific wavelength band from the light only.
A point of serious concern is that electromagnetic waves discharged from a CRT adversely affect the human body. So, conductive reflection reducing coating has come to be widely adopted on computer monitors. We reduced the resistance value of our reflection reducing coating so that the coating satisfies TCO standards. We can also produce high-transmittance coating using transmitting film and low transmittance coating using absorbing film.
Sheet resistance value: 250Ω/□ (Resistance between electrodes of 211" CRT: Equivalent to 1K Ω)
(maximum glass size 1,000mm x 1,500mm flat or curved plate)
Bubbles or cracks occur in lenses exposed to high temperatures, resulting in the lens breaking. This heat resistant filter protects lenses from high temperatures.
Optical thin films used to e coated by vacuum deposition, but films on large substrates were difficult to coat evenly in lots. So we developed optical thin films by sputtering and started mass production of conductive reflection reducing coated products in 1993. Today, the following coating techniques are now available.
Some civil equipment is equipped with liquid crystal vision with a high intensity metal halide light source and is very useful for reproducing bright images on a large presentation screen.
Heat resistant filters that protect the lense from high temperatures up to 500°C and maintain the spectral characteristics even under high temperatures.
The following coatings are possible for germanium or silicon substrates:
Fujinon lenses are used in multimedia equipment like PC cameras and in monitoring devices such as on-vehicle cameras. These lenses are available for various types of CCD's in sizes of 1/3", 1/4", and 1/5". We can supply a variety of lenses, including low-priced plastic lenses, wide angle high performance lenses ad lenses that meet various specifications.
The Fujinon optical system for a laser beam printer has been widely adopted for laser beam printer, digital copying machines etc. The system meets customer needs in various fields including optical system layout design, and optical elements such as Fθ lenses, collimator lenses and cylindrical lenses and optical units.
Our automated assembling and inspection lines enable us to supple stable products at low prices. The automatic inspection line, in particular, adopts the thorough numerical control and statistical method and feeds back evaluation results to the parts machining process in real time. Therefore, our products have come to satisfy all customer needs in terms of quality, price and delivery.
We produce various optical parts for laser beam printers at our own plant. Fθ lenses are made of plastic for low cost and glass for various digital copying machines. In addition, our latest advanced manufacturing technique enabled us to commercialize plastic polygon mirrors, glass molded collimators etc.
We produce various types of lenses and units for fine contracting optical systems to form images on line CCD's. Whatever the customer's needs, for both personal and office use, are designed, developed and manufactured.
The optical unit for a laser beam printer controls beam position accuracy, jitter and many other items for uniform beam shape, uniform fθ characteristics and ideal scanning lines. Our overall design capability, our own regulating and inspection technique and our advance equipment enable us to supply optical units of stable performance.
Scanner units are carefully regulated and inspected so that they can display the expected performance when loaded on machines on customer's production lines. For regulating scanner units, we have developed a regulator using our own algorithm capable of achieving highly accurate regulation in a sorter time.
We have succeeded in realizing the color reproducibility of color complex prisms, the main part of the liquid crystal projector, based on our experience in color separation prisms for commercial TV cameras. Also, our unique technology for attaching the liquid crystal panel to the prism has been highly evaluated because it eliminates color drift and has high shock resistance.
In addition to the projector lens and the color complex system, we have developed, designed and manufactured optical other systems like lighting and color separation systems. We have also improved quality to achieve even higher intensification and higher precision and will continue to seek ways of making them even more light-weight and further reducing costs.
The projector has quickly become highly intensified, making an integrator imperative. So we have developed a plastic integrator that is more heat-resistant than our conventional glass type. Consequently, we can now offer an integrator as a new, lightweight, low-priced lighting system that can be easily made accurate.
The very small strain plastic lens has been developed as a special plastic aspherical lens for rear type liquid crystal projectors using polarizing screens. Compared with normal plastic lenses, the internal strain is very small thanks to our special processing method, which realizes high performance equivalent to that of a glass lens.
High resolution, uniform picture quality and less aberration are required for the projector lens. So, we have combined a well-balanced design and high evaluation technology in order to improve overall performance and develop even better lenses.
We consider it necessary to provide carious data concerning projectors specifications on shipment of the optical unit. Our measuring method conforms to ANSI and other standards and we can provide data satisfying customer needs by rationalizing automatic measurement.
Fujinon projector lenses support the advancement of higher intensity and more precise projectors by utilizing our design development power and manufacturing technology developed for broadcast TV lenses over the years. We will endeavor to lower costs in the future and try to provide high cost-performance lenses.