AD Photonics provides all kinds of high precision windows, wafers and filters from
vaious of materials, including Sapphire, Calcium Fluoride(CaF2), Germanium(Ge), Si
Fused Silica, BK7, MgF2, Zinc Selenide(ZnSe) and quartz for UV to infrared
application at very competitive price and high quality guaranteed. Other special
materials are aslo available upon request. We can also provide CaF2 lens, MgF2 lens
and Ge lens.
vaious of materials, including Sapphire, Calcium Fluoride(CaF2), Germanium(Ge), Si
Fused Silica, BK7, MgF2, Zinc Selenide(ZnSe) and quartz for UV to infrared
application at very competitive price and high quality guaranteed. Other special
materials are aslo available upon request. We can also provide CaF2 lens, MgF2 lens
and Ge lens.
Germanium(Ge) Windows/Lenses
Germanium is a commonly used infrared window material. It's popular
for its high index of refraction and good IR transmission. Germanium
blocks UV, visible, and infrared up to about 2um. Its good
transmission range makes it useful for a number of applications, but
due to its high index of refraction, an AR coating is required for
sufficient transmission. Germanium is typical used in thermal imaging
and FLIR applications. It has provide to be most useful as windows
and lens material in the 1.6~18um region for semiconductor substrate
application
Germanium is a commonly used infrared window material. It's popular
for its high index of refraction and good IR transmission. Germanium
blocks UV, visible, and infrared up to about 2um. Its good
transmission range makes it useful for a number of applications, but
due to its high index of refraction, an AR coating is required for
sufficient transmission. Germanium is typical used in thermal imaging
and FLIR applications. It has provide to be most useful as windows
and lens material in the 1.6~18um region for semiconductor substrate
application
BK7 Windows/Lenses
BK7 has good performance over visible and near IR spectrum for
most applications. These general pupose windows are polished to up
to lambda/10 flatness with parallelism better than 3 arcmin or 10
arcsec. Wedged plane windows are polished to lambda/10 flatness
with laser grade finish on both surfaces. They are intended for use in
situations where reflection from the second surface will interfere with
the correct operation of the optical system.
most applications. These general pupose windows are polished to up
to lambda/10 flatness with parallelism better than 3 arcmin or 10
arcsec. Wedged plane windows are polished to lambda/10 flatness
with laser grade finish on both surfaces. They are intended for use in
situations where reflection from the second surface will interfere with
the correct operation of the optical system.
Optical Low-pass Filters(OLPF)
In high-quality digital imaging systems, optical low-pass filters(OLPF)
are used to eliminate color Moire fringes. IR cut-off function is often
incorporated into OLPF as well. OLPFs are made of several cemented
layers of optical quartz material. An IR cut-off coating and AR coating
are applied to the external surfaces.
are used to eliminate color Moire fringes. IR cut-off function is often
incorporated into OLPF as well. OLPFs are made of several cemented
layers of optical quartz material. An IR cut-off coating and AR coating
are applied to the external surfaces.
Sapphire Windows/Disks
Single crystal sapphire windows are ideal for demanding
applications(such as laser systems) because of their extreme surface
hardness, high thermal conductivity, high dielectric constant and
resistance to common chemical acids and alkalis. Sapphire has
transmission range from 0.15 to 5.5 micron.
Single crystal sapphire windows are ideal for demanding
applications(such as laser systems) because of their extreme surface
hardness, high thermal conductivity, high dielectric constant and
resistance to common chemical acids and alkalis. Sapphire has
transmission range from 0.15 to 5.5 micron.
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