Pen style magnifying glass with scale

Purpose:
GBSK-50X Pen BeltscalemagnifierIt has the characteristics of clear imaging, simultaneous observation and measurement, exquisite structure, convenient use, and beautiful appearance. Paper and printing outlets used for finance, taxation, philately, welding, textile, printing and dyeing, metrology, photography, advertising, calligraphy and painting appraisal, and electronic industry observation of coins, tickets, and cards. Used in the jewelry industry, it can observe the internal structure and molecular arrangement of gemstones, and analyze and identify mineral specimens and cultural relics. Used in the printing industry, it can be used for precision plate making, color correction, and dot and edge observation. It can accurately measure screen mesh size, dot size, overlay error, etc. Used in the textile industry, it can observe and analyze fabric fibers and warp and weft density. Used in the electronics industry, it can observe the wiring patterns and quality of printed circuit boards, copper platinum plates, component models, solderability, etc. Used for observation and research on pathogens and insects in agriculture, forestry, food and other sectors. It can also be used for animal and plant specimens, identification and analysis of evidence by public security departments, scientific experimental research and other industries.
Technical parameters:
Model: GBSK-50X 50xPen magnifying glass(with scale)
Specification: ф 12 × 122mm
Numerical aperture: 0.085
Magnification: 50x (with scale)
Object line field of view: φ 3.24mm
Minimum grid value of dividing board: 0.05mm
Maximum range of the dividing board: 3mm (50x with scale),
Lens: All optical lenses are coated with anti reflective film
Appearance: Φ 12 × 122mm aluminum alloy sleeve.