DIY projector projector focal length F345 three six-layer professional coated le

Description

This lens is suitable for liquid crystal LCDs up to 12.1"-15. It adopts multi-head thread ultra-precision adjustment structure, which can always maintain the lens concentric precision, produce the sharp effect of the garbage lens of non-general plastic case, aluminum body lens barrel, black matte surface treatment First-class feel, three pieces of three sets of optics, six layers of anti-reflection film, accessories with lens cover, is an improved wide-angle lens, which can make the edge of the projected image clearer, the three primary color lattice reproduction, brightness increase, single from The surface is very blue at first glance! The specific parameters of the lens are as follows:
Focal length: F=345mm
Lens treatment: three six-layer antireflection coating
Flange outer diameter: 95mm
Outer tube outer diameter: 80mm
Effective inner diameter of the lens: 67mm
Focusing range: 0-38mm
Mounting hole center distance: 84mm
Use LCD size: 15 inches or less