Explanation of the basic properties of lenses that require homogeneity and transparency, as well as the polishing process.
The important function of a lens is to refract light. It must be able to refract light according to the design intent. To achieve this, it is necessary to have properties that do not add color and do not reduce transparency, regardless of how many layers are stacked. At the same time, it is required to realize uniform light refraction, and the surface shape must be polished very precisely. Due to these properties of the lens, there is a tendency for very high precision requirements to arise, making the lens polishing process a very important step. [Polishing Process] ■ CG Process ■ Grinding (Pellet) ■ Rough Polishing (Resin) ■ Polishing ■ Centering ■ Coating ■ Bonding / Ink Application *For more details, please refer to the catalog or feel free to contact us.
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basic information
【Types of Lenses】 ■Convex Lens ・A lens that is thicker in the center and gradually becomes thinner towards the edges. ・Can refract light from a distance and focus it to a point. ■Concave Lens ・Opposite to the convex lens, it is thinner in the center than at the edges. ・Causes incoming light to diverge. 【Classification by Shape】 ■Spherical Lens ■Aspherical Lens ■Cylindrical Lens ■Toroidal Lens ■Fresnel Lens ■Refractive Index Distribution Lens ■Diffractive Lens *For more details, please refer to the catalog or feel free to contact us.
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For more details, please refer to the catalog or feel free to contact us.
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Company information
Neop Co., Ltd. conducts prototype and mass production of lenses. The features are as follows: - Small quantity, diverse varieties, prototyping, and mass production (approximately 1000 units per month) - High-precision polishing supported by pitch polishing and pad polishing - Compatible with SiO2, synthetic quartz, and various difficult-to-polish materials - We handle material procurement, centering, coating, and bonding - Almost all products undergo analysis inspection with an interferometer before delivery (measurable convex radius: 0 to 1200R, concave: 0 to 1150R) - Delivering products with surface accuracy of λ/20 (with complete measurement data attached) - We strive to deliver products with accuracy of λ/10 or better - Small diameter and small radius (1.1R, convex/concave hemispherical rate within 99 from Φ2) - With the introduction of NC machines, we are now capable of producing up to Φ70 - By using a centering polishing machine, we can reduce costs and shorten delivery times for prototypes ranging from 30 to several hundred units We focus on lens surface inspection technology and strive daily to improve the quality of our delivered products. Neop is committed to contributing to the information and communication industry of the 21st century through lens polishing technology.