カメラ用交換レンズを作るプロセス。日本の光学機器メーカー。

Sigma Aizu factory in Bandai-cho, Yama-gun, Fukushima Prefecture, Japan. This company manufactures and sells optical devices such as digital cameras, interchangeable lenses, and various accessories. Today I will show you the process by which interchangeable lenses for a camera are made. So, shall we check it out together? lens design Lens cutting polishing processing process Processes glass raw materials into the shape of lenses. Right: Before processing Left: After processing Precision machining process Processed with a precision of 1/10,000th of a millimeter. After processing the lens, measure the height difference of the lens Check whether the lens meets specifications. Right: Before processing Middle: First machining completed Left: Second machining completed polishing process The final finish is achieved by polishing the lens surface. Check the accuracy of the polished lens. If the number of rings in the lens is uniform and the number is within specifications, the test is passed. Surface precision inspection We use machines to check the surface precision of the processed lenses. final machining process Process with a grindstone by adjusting the center or tilt of the optical axis of the lens. Visual inspection After inspecting with the human eye for scratches or foreign substances, etc. Insert it into a dedicated jig. coating A metal compound chemical evaporated at high temperature is thinly attached to the lens surface. joining process Chromatic aberration is corrected by combining a concave lens and a convex lens. Process of applying black ink Prevents internal reflection and suppresses reflection of light. Left: Before applying black ink Right: After applying black ink Process of making group units of lenses Multiple lenses are placed in a plastic frame and fixed using heat. Cutting processing process for magnesium parts Parts with complex shapes are cut with high precision using a machining center. Internal painting process Exterior painting process dry Left: Before painting Right: After painting color adding process Craftsmen put letters and markings directly on the lens parts to make them stand out. Left: After adding color Right: Before adding color laser engraving The product name or markings are engraved on the surface of the part with a laser. Above: After laser engraving Below: Before laser engraving Substrate making process Quickly and accurately aligns fine electronic components on the substrate, Solder to create a board unit. Press processing process of metal parts Plastic injection molding processing process Lens barrel processing process After processing Anodized preparation anodized “Anodized” is applied to increase hardness and corrosion resistance. Anodizing is the process of applying electricity to aluminum materials. This is the process of attaching a strong oxide film. After anodizing assembly quality testing Check the resolution of your lens by shooting the chart. Packaging/shipping

Channel: プロセスX

Views: 4,108,454

Keywords: yt:cc=on, process of making, knowhow, plant, works, planting

Id: r5HFLkNrbIU

Length: 24min 41sec (1481 seconds)

Published: Fri Nov 10 2023