A high power zoom lens system comprising first through fifth lens group, which are arranged sequentially from the object side. 所述第一到第五透镜组的至少一个在放大率改变期间移动,所述第一透镜组包括反射构件,所述变焦透镜系统满足条件3.8≤fT/fW≤6.0并且1.50≤LT/fT≤1.88其中,"fW"表示在广角位置的...
New Double Lens 10X Handheld Magnifying Glass with LED Light for Reading Inspection High Power Magnifier Specification: MG7015 Lens size75mm Magnification10X Light10LED Battery2xAAA(not included) Pictures: OEM: 1. Accept order samples fo...
Magnification:10x-30;Objective Lens Diameter:50mm;Prism Type:BK4;Field of View:2.8-1.4;Exit Pupil Diameter:4.1-1.4mm;Exit Relief:17.2-15.2mm;Optical Coating:Full Multi Coated;Waterproof:Yes;Nitrogen:Yes;Special Note:Big Eyepiece;Warranty:3 years;Certific
Adaptive gait changes in older people due to lens magnification Purpose: Intervention trials that reduce visual impairment in older adults have not produced the expected improvements in reducing falls rate. We hypothesi... GJ Chapman,AJ Scally,DB Elliott - 《Ophthalmic Physiol Opt》 被引量: 28发表...
Product name:Headlamp;Type:High brightness;Power Supply:110V-240V 50Hz-60Hz;Certificate:CE ISO;Bulb Type:Little Bulb;MOQ:10 Sets;Transportation:Air;Work Time:5-10 Hours;Bulb life:100000h;Properties:Surgical Instruments;Power Source:Electricity;Warranty:1
Magnification: 3X&45X Diameter: 75mm&22mm With LED lights Lens material: Glass Body: Plastic Ningbo Hongbo Optical Instrument Co., Ltd is located in Ningbo, Zhejiang province of China.Founded in the MID 2000s, Hongbo has become a leading manufacturer for all kinds of magnifiers, microscopes, ...
Nutrek Optics 10X42 High Power Ultra-Low Dispersion Bka4 Glass Lens Binoculars with Filled Nitrogen US$44.90 100-199 Pieces US$43.95 200-999 Pieces US$42.50 1,000+ Pieces Product Details Customization: Available Type: Binocular Magnificat...
With a magnification power of 3x, this lens allows you to explore the universe in greater detail, making it perfect for both amateur and professional astronomers. Its lightweight and compact design make it easy to handle and transport, ensuring that you can take your exploration on the go. ...
Specifications: Material: Durable Metal Construction Magnification: 12x, 16x Power Options Objective Lens Diameter: 56mm for High Light Gathering Field of View: 107m/1000m, 130m/1000m for Wide Viewing Water Resistance Level: IPX7 for Reliable Outdoor Use Optical System: Roof Optical Design for ...
Product name:High Powered Binoculars 25x100;Magnification:25X;Objective lens diameter:100mm;Field Angle:50°;Field of View @ 1000m:35m;Prism Glass:BAK4;Eye relief (mm):24;Lens Coating:Fully Multi Coated Lens;Size:388X246X115mm;Weight:3800g;Customized sup