bk 7 half ball lenses

...lenses protective dome ball and half ball lenses glass cover used for underwater photography Concave lenses, are a simple lens with one spherical face and one flat plano face. Because the spherical face is concave the lens has a negative focal length, allowing the part to increase the divergence of convergent light. Concave lenses can be used to balance out the spherical aberrations caused by other lenses. This makes concave lenses...

.... Half-ball lenses are also common and can be interchanged with full ball lenses if the physical constraints of an application require a more compact design. Like ball lenses, half ball lenses can focus or collimate light, depending upon the geometry of...

...spherical ball lenses and half ball lenses in a range of substrates for performance in the ultraviolet to the NIR. Such as including H-K9L(N-BK7), Sapphire, ZnSe or custom materials upon request. Ball lenses feature short back focal lengths to minimize the...

...Lenses For Double Row Linear Lighting LED Optics Lenses Application: The lens commonly used in the optical fiber coupling, laser collimating device, it has a shorter focal length and the characteristics of small size. Sunday produce ball lens,half ball lens, Super hemisphere ball lens, hollow ball......