ジュラロン工業 List of Products and Services

Fresnel lenses are used in a wide range of fields, but due to their fine and complex shapes, ultra-precision machining technology is required to manufacture them. Characteristics of Fresnel Lenses Conventional lenses are formed into spherical, aspherical, or free-form surfaces to change the direction of light and focus or diffuse it. However, Fresnel lenses achieve a thin and lightweight design by dividing the lens into concentric rings and creating steps, allowing them to retain the function of "bending light" while eliminating unnecessary thickness. Additionally, large-diameter lenses that are difficult to achieve with conventional lenses can be relatively easily manufactured with Fresnel lenses. In terms of applications, they are used in many fields due to their thin and lightweight characteristics, as well as their ability to focus and diffuse light, such as in projectors, lighting, and VR/AR-related technologies. For more details, please proceed to the URL!

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Proposal for Prototype Plastic Lenses Optimal Methods Differ for Mass Production and Prototyping - During mass production: Injection molding is optimal from a cost perspective. - During prototyping: Due to high mold costs, the cost per unit becomes very high for small-scale production. Method Suitable for Prototyping: "Machining" Machining is ideal for small-scale prototyping as it does not require molds. However, the following conditions are necessary to achieve high-quality lenses: - Dedicated ultra-precision machining equipment - Constant temperature room maintaining ±0.2℃ - Factory environment with a special structure to suppress external vibrations - Machining technology well-versed in plastic properties and optical characteristics Strengths of Juraron Industries Our company meets all these conditions. - Adopted by many major manufacturers - Provides high-precision lenses without compromising optical characteristics - Safe to request small-scale prototyping through machining Recommended for: - Those who want to conduct small-scale prototyping with low risk - Those seeking high-precision optical performance - Those who want to evaluate and verify prototypes before mass production

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If the specific specifications of the optical system are unclear, we will propose a concrete optical configuration and specifications while listening to your requests. Based on the extensive experience of our designers, we can quickly provide a preliminary configuration proposal, so please feel free to consult with us first.

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We provide products with stable quality that meet our customers' requests, from optical design and mold making to prototyping and mass production. Our company has established a production system that operates 24 hours a day in a clean room with controlled temperature and humidity, achieving globally competitive manufacturing costs even with domestic production. 【Production Achievements】 - Lenses for optical pickups - Lenses for cameras - Lenses for smartphones - Lenses for printers - Lenses for VR - Lenses for head-up displays - Lenses for head-mounted displays - Sensor lenses for factory automation - Lenses for LED lighting - Various other lenses

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At Juraron Industries, in addition to the design, prototyping, and molding of optical plastic lenses, we have been engaged in high-precision mold design and manufacturing for many years. Utilizing the machining know-how we have accumulated in ultra-precision microfabrication, we employ nano-processing machines to meet the needs of our customers who require nano-level precision. *For more details, please refer to the PDF document or feel free to contact us.*

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A micro lens array is a collection of lenses arranged by placing multiple single lenses side by side both vertically and horizontally. Generally, it refers to single lenses with an outer diameter of about φ1mm or less, and due to its appearance, it is sometimes called a fly eye lens. It is mainly used in lighting optical systems to split a single light source into multiple secondary light sources and to overlap multiple light beams from these secondary sources to achieve uniform illumination. Our diffuser lens has this MLA structure. When the size of the single lens is smaller than 1mm, it is common to use photolithography technology for manufacturing; however, we produce them by ultra-precision cutting of molds and using resin injection molding technology. *For more details, please feel free to contact us.

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• Processing Contract

The objective lens is the most important optical component that determines the basic performance and functionality of optical pickups. It plays a crucial role as a lens that focuses laser light down to a sub-micron order spot to read digital signals (pits) on optical discs. Our company has established a system to produce high-quality products and provides objective lenses with stable quality.

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A collimator lens is a lens that parallelizes the light emitted from a semiconductor laser. It is used in various components such as CD players and laser pointers, playing a very important role. Therefore, meticulous design is essential to meet the customer's applications and preferences.

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When receiving the light returned from the optical disc with a light-receiving element, it is necessary to make the spot shape elliptical. Therefore, this lens has one side shaped like a cylinder (kamaboko shape). We provide sensor lenses that fully meet our customers' needs.

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Optical lenses used in various industrial fields for distance detection, position detection, on/off detection, and more. Our company utilizes the technology we have cultivated over many years to design and manufacture optical lenses required for diverse industrial devices. Furthermore, we are also available for consultations from the design stage, so if you have any concerns about your knowledge regarding lenses, please feel free to contact us.

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A rectangular diffraction grating is a type of diffraction optical element (DOE) that has a cross-sectional shape with periodically formed rectangular grooves. Generally, rectangular groove diffraction gratings are produced through photolithography processes such as etching; however, our company is capable of manufacturing rectangular diffraction gratings with groove widths of about 10μm through machining processes. As shown in the photo, we have a track record of producing diffraction gratings for optical discs.

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A prism is a wedge-shaped optical element made of a plane that forms an angle with the incident and exit surfaces of light. It is used to change the direction of light passing through by utilizing refraction (deflection), to change the direction of light of different wavelengths by utilizing dispersion (spectroscopy), or to align the direction of light (coherence). The prism in the photo is designed so that the incident light undergoes total internal reflection at a surface tilted at 45 degrees, changing its direction by 90 degrees, and the lens surface formed at the prism's exit surface alters the way the light spreads. Thus, composite elements of prisms and lenses are also possible.

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