Nd:YVO4 crystal is one of the most excellent laser host materials, it is suitable for diode laser-pumped solid state laser. The crystal has these main features: low lasing threshold, high slope efficiency, large stimulated emission cross-section, high absorption over a wide pumping wavelength bandwidth, easy tuning for single mode and high tolerance for pumping wavelength. Recent developments have shown that Nd:YVO4 micro-lasers can produce powerful and stable IR and green or red laser with the design of Nd:YVO4+KTP.Nd: doping 0.1%,0.2%,0.27%,0.5%,1%,2%,3%,5% Dimension tolerance:+/-0.1mm Flatness: /8l @633nm Surface quality: Scratch/Dig 10/5 Parallelism: better than 20 arc sec. Perpendicularity: better than 15 arc min Angle tolerance: 99.8%@1064nm,R90% central area Transmitting wavefront distortion: less than /8l @ 633nm Quality Warranty Period: one year under proper use
In photography, a lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare.The geometry of the lens hood can vary f
Adapter ring is used between camera(or projector) and lenses,it could mount kinds of conversion lenses,such as telephot lens,wide angle lens,fisheye lens,and so on.Adapter rings are labeled from
The dome lens/hemisphere dome we manufactured be used to protect the lens of underwater camera,which could resist the pressure of water,and give a best view field to catch picture.Specification of hem
Dove Prism is ideal for image rotation. Dove prisms create an image inversion in a beam input parallel to the base.VY Optics Photoelectric Technology Co.,Ltd. can supply each kind size and each kind d
Cylindrical lens is used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line.They are available in either plano concave or plano co
Corner Cube Retroreflector is always used to reflect the beam entering the prism face, regardless of its orientation to the beam. Corner cubes are widely used where precision alignment is difficult.Sp
Telephoto lens has a narrower angle of view,it thus gives apparent magnification to objects,it also seems to compress distant things, and there is less depth of field. The most obvious is to allow pho
Lithium Niobate(LiNbO3) Crystal lens is widely used as frequency doublers for wavelength > 1 mm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices
Projection lens for medical equipment,pocket projectorWe manufacture and design kinds of projector lens as requirement,not only include short focal length fisheye lens/wide angle lens for Sanyo/Sony p
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