Optical Instruments: An Introduction to Several Simple Optical Instruments

2026-06-01
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Image Measuring System

  

  An image measuring system is also known as an image measuring instrument or a precision image-based surveying instrument. It represents a qualitative leap forward from the measuring projector, elevating industrial metrology from traditional optical projection and alignment to computer screen measurement—a technology born of the digital imaging era. Image measuring systems rely on computer screen measurement technology and powerful spatial geometry calculation software. Image measuring instruments are further classified into two types: digital image measuring instruments (also known as CNC image measuring instruments) and manual image measuring instruments.

  Introduction to Coordinate Measuring Machines

  A coordinate measuring machine (CMM) is an instrument capable of measuring geometric shapes, lengths, and angular positions within a six-sided spatial range. It is also referred to as a coordinate measuring machine or a coordinate measuring bed.

  Tool Microscopes

  Tool microscopes, also known as microscopes for tool manufacturing, are high-precision two-dimensional coordinate measuring instruments used in tool manufacturing. It utilizes optical principles to project an image of the workpiece through an objective lens to the eyepiece, that is, it magnifies the workpiece into a virtual image using light. With the aid of a stage and an eyepiece reticle, it is used for measuring dimensions, angles, and shapes, and can also be used to inspect the surface of non-metallic, non-reflective workpieces.


Optical Image Projector   


The optical image projector is a high-tech product that perfectly integrates touchscreen technology with image measurement technology. Compared to traditional projection instruments, virtually all human-machine interaction is carried out via the touchscreen. The functional buttons are designed with user-friendliness in mind, making the entire machine simple to operate and highly practical. Compared to conventional projectors and image measurement instruments, operation is greatly simplified. Additionally, during complex measurement procedures, clear instructional images are provided at every step to guide the user, and prompts for each step appear in the information bar, making instrument operation exceptionally easy.