beijing optics

Specifying Scratch/Dig of an Optical Surface MIL-0-13830

Specifying Scratch/Dig of an Optical Surface MIL-0-13830

Specifying Scratch/Dig of an Optical Surface MIL-0-13830 The designation of surface will be given in the form of two numbers, i.e. 60-40. The first number specifies the maximum width of scratches on the surface in tenths of a micron. #80 Max width equals 8 microns#60 Max width equals 6 microns#40 Max width equals 4 microns#20 […]

Tolerancing in CodeV

Tolerancing in CodeV

Tolerancing in CodeV Abstract The allocation of fabrication and assembly tolerance for optical components is a task that is on completely equal footing with optimization.  When building an optical system, it is extremely crucial to ensure that the system meets the performance specification through tolerance analysis. For each optical component within the system, proper tolerances […]

Choosing Optical Materials for Long Wave Infrared (8-12μm) Applications

Choosing Optical Materials for Long Wave Infrared (8-12μm) Applications

Choosing Optical Materials for Long Wave Infrared (8-12μm) Applications Introduction Imaging in the long-wave infrared (LWIR) spectral region, also referred to as the thermal infrared, has many useful applications in the military, security, construction, and scientific fields.  Long-wave infrared imaging systems cover the 8-12 μm wavelength band, which is dominated by thermal emission from target […]

Optical Tolerances5

Optical Tolerances

Manufacturing optical tolerances are important factors that impact both performance and cost of an optical component or system. Optical components commonly require tighter optical tolerances than mechanical components. Cost Drivers for Optical Components Each of the factors below will affect the cost for an optical component: • Quantity • Material • Surface Shape • Size […]

Optical Tolerances4

Optical Tolerances

Manufacturing optical tolerances are important factors that impact both performance and cost of an optical component or system. Optical components commonly require tighter optical tolerances than mechanical components. Cost Drivers for Optical Components Each of the factors below will affect the cost for an optical component: • Quantity • Material • Surface Shape • Size […]

Optical Tolerances3

Optical Tolerances

Manufacturing optical tolerances are important factors that impact both performance and cost of an optical component or system. Optical components commonly require tighter optical tolerances than mechanical components. Cost Drivers for Optical Components Each of the factors below will affect the cost for an optical component: • Quantity • Material • Surface Shape • Size […]

Optical Tolerances2

Optical Tolerances

Manufacturing optical tolerances are important factors that impact both performance and cost of an optical component or system. Optical components commonly require tighter optical tolerances than mechanical components. Cost Drivers for Optical Components Each of the factors below will affect the cost for an optical component:  • Quantity  • Material  • Surface Shape  • Size  […]