Jiangsu Profile
Product List
5731. Cr39 1.499 Flat Top Bifocal UC 70/28mm Optical Lens 
[Sep 10, 2025]
[Sep 10, 2025] What is Lens Index? The lens index refers to the index of refraction (otherwise known as refractive index) of lens material for eyewear. It is a relative measurement number that describes how efficiently the ...
Company: Danyang Boris Optical Co., Ltd.
5732. 1.49 Round Top Bifocal UC 70/28mm Resin Lens/Optical Lens [Sep 10, 2025]
[Sep 10, 2025] What is Lens Index? The lens index refers to the index of refraction (otherwise known as refractive index) of lens material for eyewear. It is a relative measurement number that describes how efficiently the material ...
Company: Danyang Boris Optical Co., Ltd.
5733. Cr39 1.499 Invisible Bifocal Hmc 70/28mm Optical Lens [Sep 10, 2025]
[Sep 10, 2025] What is Lens Index? The lens index refers to the index of refraction (otherwise known as refractive index) of lens material for eyewear. It is a relative measurement number that describes how efficiently the material ...
Company: Danyang Boris Optical Co., Ltd.
5734. Progressive Cr39 1.499 Regular Corridor 17mm UC Optical Lens [Sep 10, 2025]
[Sep 10, 2025] Progressive multifocal lenses are also called progressive lenses, which have multiple focal points on one lens as the name implies. If the lens is divided from the focus, it can be divided into single focus lens, double ...
Company: Danyang Boris Optical Co., Ltd.
5735. 1.56 Photochromic Grey Round Top Hc Optical Lens [Sep 10, 2025]
[Sep 10, 2025] Color changing lens, also known as "photosensitive lens". The glass lens is added with silver halide, but at present the mainstream is resin discoloration lens, in the acrylic resin lens with the addition of Pyrex ring ...
Company: Danyang Boris Optical Co., Ltd.
5736. 1.56 Photochromic Grey Invisible Hmc Optical Lens [Sep 10, 2025]
[Sep 10, 2025] Color changing lens, also known as "photosensitive lens". The glass lens is added with silver halide, but at present the mainstream is resin discoloration lens, in the acrylic resin lens with the addition of Pyrex ...
Company: Danyang Boris Optical Co., Ltd.
5737. 1.49 Cr39 Sunglasses Photochromic Optical Plastic Lens [Sep 10, 2025]
[Sep 10, 2025] Color changing lens, also known as "photosensitive lens". The glass lens is added with silver halide, but at present the mainstream is resin discoloration lens, in the acrylic resin lens with the addition of Pyrex ring ...
Company: Danyang Boris Optical Co., Ltd.
5738. Progressive Cr39 1.56 Short Corridor 12/14mm Hc Optical Lens [Sep 10, 2025]
[Sep 10, 2025] What is Lens Index? The lens index refers to the index of refraction (otherwise known as refractive index) of lens material for eyewear. It is a relative measurement number that describes how efficiently the material ...
Company: Danyang Boris Optical Co., Ltd.
5739. 1.56 Photochromic Grey Progressive Hmc Optical Lens Reading Lens [Sep 10, 2025]
[Sep 10, 2025] Progressive multifocal lenses are also called progressive lenses, which have multiple focal points on one lens as the name implies. If the lens is divided from the focus, it can be divided into single focus lens, double ...
Company: Danyang Boris Optical Co., Ltd.
5740. 1.591 Polycarbonate Lens PC Bifocal Flat Top Hc Optical Lenses [Sep 10, 2025]
[Sep 10, 2025] PC material lens is polycarbonate (polycarbonate) abbreviation, PC lens is also known as space film is very light. The main performance is safety explosion-proof, you even use hammer hit it is not necessarily ...
Company: Danyang Boris Optical Co., Ltd.
5741. 1.56 Single Vision Hmc UV420 Blue-Block 70/65mm Optical Lens [Sep 10, 2025]
[Sep 10, 2025] What Is Blue Light? Sunlight contains red, orange, yellow, green and blue light rays and many shades of each of these colors, depending on the energy and wavelength of the individual rays (also called electromagnetic ...
Company: Danyang Boris Optical Co., Ltd.
5742. Rotary Construction Use 360 Degree Base Laser Level Meter [Jun 20, 2025]
[Jun 20, 2025] Laser Beam 16 green beams Laser wave length 532nm Level accuracy ± 1.5 - 2 mm / 7m Temperature Range -10ºC -50ºC Working Range 30 - 50m indoor Automatic Compensatory ...
5743. Hot Selling 4D Green Self-Leveling 360 Degree 16 Lines Green Laser Level [Jun 20, 2025]
[Jun 20, 2025] Laser Beam 16 green beams Laser wave length 515nm Level accuracy ±1mm/7m Temperature Range -10ºC -50ºC Working Range 20M Automatic Compensatory range ±4° Laser emission ...
5744. Factory Direct Exporting Popular Design 3D 12 Line Laser Level [Jun 12, 2025]
[Jun 12, 2025] Laser Beam 12 green beams Laser wave length 515nm Level accuracy ±1mm/7m Temperature Range -10ºC -50ºC Working Range 50M Automatic Compensatory range ±4° Laser emission ...
5745. Jsperfect High Class 12 Lines 3D Level Laser for Exporting with CE [Jun 12, 2025]
[Jun 12, 2025] Laser Beam 12 green beams Laser wave length 515nm Level accuracy ±1mm/7m Temperature Range -10ºC -50ºC Working Range 50M Automatic Compensatory range ±4° Laser emission ...
