China Shanghai Longway Special Glass Co., Ltd. company news

The Main Manufacturing Techniques of Optical Glass Materials 1. Melting Process:The primary method for manufacturing optical glass is the melting process. This involves uniformly mixing various raw materials (such as quartz sand, soda ash, limestone, etc.) and heating them to a molten state in a ... Read More

Introduction to Materials for Optical Lens Processing Optical lenses are transparent optical components that utilize optical phenomena such as reflection, refraction, and absorption to adjust the direction of light propagation, focus, or diffuse light. They are widely used in various fields, ... Read More

Optical Aberrations Explained: From Spherical to Chromatic Aberration An ideal optical system achieves perfect imaging for paraxial objects with narrow beams: object/image points correspond one-to-one, object/image planes maintain correspondence, and transverse magnification remains constant across ... Read More

Aspheric Lenses vs. Spherical Lenses: Differences and Applications Spherical Lenses Spherical lenses are rotationally symmetric optics whose shape corresponds to a section of a sphere (Fig. 1). The distance from the geometric center to the curvature radius is constant. This means the optically ... Read More

The brief introduction of Sight Glass A sight glass is a transparent window glass designed for use under specific temperature and pressure conditions. It is typically manufactured from high-quality heat-resistant glass through specialized processes, characterized by high transparency, heat ... Read More

Installation Considerations and Common Types of Sight Glasses Sight glasses, also known as sight gauges or flow indicators, are safety accessories used to observe the internal conditions of containers and equipment. They are widely employed in various industrial equipment and pipeline systems, ... Read More

Detailed Polishing Process for Optical Domes I. Pre-treatmentPre-treatment refers to the preliminary steps performed before dome polishing to ensure quality and stability of the polishing results. Specific steps include: Cleaning: Thoroughly clean the dome to remove dirt and grease. Mounting: ... Read More

Design and Application of Optical Domes An optical dome is an optical component with a spherical or hemispherical shape, widely used in various optical systems. Optical domes are typically employed to protect internal elements of an optical system from external environmental influences while ... Read More

The Precision Molding Technology Analysis of Optical Aspherical Lens The molding technology is a high-precision optical component manufacturing process. It involves placing softened glass into high-precision molds, where it is directly formed into optical parts meeting usage requirements through one... Read More

The Difference Between Pressed Glass and Blown Glass I. Pressed Glass Process PrinciplePressed glass generally refers to the process of using molten glass stock to form glass products with specific shapes, dimensions, and properties through heating, plastic deformation, and cooling. It is also known ... Read More