Low Price Large Magnifying Glass Portable Handheld Reading Magnifie

• Customization: Available
• Magnification: 5X/4X/2.5X/2X/1.75X
• User: All
• Model NO.: MG 87052-57
• Mirror Surface: Convex
• Portable Magnifier: Handle Type
• Structure: Handheld
• Material: Plastic
• Handle: Plastic Cement
• Mirror Material: Glass
• Function: Magnifier
• Shape: Circular
• Carton Size: 41X30X38.5cm
• Qty/CTN: 240PCS
• G.W.: 18kg
• N.W.: 17kg
• Transport Package: by Sea
• Specification: 50MM/65MM/75MM/90MM/100MM
• Trademark: HB
• Origin: China
• HS Code: 9013801000
• Production Capacity: 1000000PCS/PER MONTH

Product Description

PRODUCT INFORMATIONG
 

low price Large Magnifying Glass portable Handheld Reading Magnifier
power	5X	4X	2.5X	2X	1.75X
lens diameter	50MM	65MM	75MM	90MM	100MM
Pcs/carton	240PCS	240PCS	240PCS	120PCS	120PCS
Weight/carton	12KG	18KG	25KG	20KG	21KG
carton size	40x29x32cm	41x30x38.5cm	44x37x45cm	51x40x23cm	61x46x24cm
A magnifying glass is a use of a convex lens that causes the object length to be less than the focal length, resulting in a magnified virtual image. When the object distance changes, the image distance also changes, and the law is: 1/object distance+1/image distance=1/focal length. For the use of a magnifying glass, it is also stipulated that the magnification of the image at a clear viewing distance (25 centimeters) is the magnification of the magnifying glass. So the following formula can be derived: amplification factor=1+25/f. Where f is the focal length, in centimeters.