エツミ光学 List of Products and Services

At Etsumi Optical Co., Ltd., we offer "plastic substrate processing." With a 5-axis machining center equipped with a maximum spindle speed of 36,000 rpm, we can process various types of plastic substrates. We can accommodate flat, spherical, and aspherical surfaces. The size of the substrate that can be processed is approximately A4 size for flat plates. We can handle specified processing tasks such as partial cutting, full perimeter trimming, through holes, blind holes, notches, and more. 【Features】 ■ Substrate size: Flat plate ■ Cutting range: Approximately A4 size ■ Utilizes CAD/CAM specifically focused on spherical processing ■ Capable of rapid sample creation and modification of mass-produced sunglasses lenses ■ Achieves high-quality finishes and irregular shaped end faces *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

In recent years, the use of touch panels has increased, leading to more operations being performed by touching the display with fingers. Our company applies anti-fingerprint (AF) coating to the surfaces of display panels such as LCDs, based on the technology developed for sunglasses. By applying this coating, it becomes more difficult for fingerprints and other dirt to adhere to the treated surface, making it easier to wipe clean. The water repellency is also improved, allowing water to bead off effectively. The water contact angle is over 110°, and we have a proven track record with various components. *For more details, please download the PDF or feel free to contact us.*

• Other optical parts

This is a coating that improves the reflectivity of product surfaces. The half-mirror, which has no light loss and where the sum of reflectivity and transmittance equals 100%, can be adjusted for reflectivity according to customer requirements. It achieves high durability films not only for glass but also for resins, and depending on specifications, we can also propose high-durability aluminum mirrors without hard coatings for materials such as PC and COP.

• Other optical parts

This is a coating designed to reduce surface reflection and improve the transmittance of products. Since our founding, we have expanded the application of anti-reflective (AR) coatings, which were originally processed for sunglass lenses, to the automotive field, including navigation cover panels and sensor lenses. We can accommodate various types of resins and glass. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

Vacuum deposition is a film formation technology that involves heating the deposition material in a high vacuum to vaporize it. The vaporized material, now in gas form, collides with and adheres to a substrate, resulting in the formation of a deposited thin film. This principle is similar to when a plate is brought over steam that is boiling and evaporating, causing the evaporated water to adhere to the plate. By varying the combinations of refractive index, thickness, and number of layers of dielectric and metallic deposition materials, it is possible to control the transmission, reflection, and absorption of light (ultraviolet, visible, and infrared). 【Features】 ■ Capable of film formation on glass, plastic, film, metal, etc. ■ Deposition materials include metal oxides (ZrO2, Al2O3, TiO2, SiO2, etc.) and metals (Al, Cr, Ti, Sn, Au, Ag, etc.) ■ Use of continuous vacuum deposition equipment enhances quality and productivity ■ Film formation in high vacuum improves the adhesion and quality of the deposited film *For more details, please download the PDF or feel free to contact us.

• others