Color Absorbance Glasses

UG,WG,BG,GG,VG,OG,RG,NG,FG,determals

We have on our product range the filters from these types of glasses :

UG - transmitts in UV band, in VIS transmitts only small, in IR transmitts partialy :

UG1, UG3, UG5, UG11,

WG - Edge filters for UV transmitting in VIS and IR :

WG225, WG295, WG305, WG320, WG345, WG360,

BG - Blue colored and transmiting ones, in VIS mostly dark, in IR partially transmitts :

BG1, BG2, BG12, BG14, BG18, BG25, BG26, BG28, BG3, BG33, BG7,

GG - Edge filters from blue to yelow band :

GG4, GG10, GG19, GG385, GA40, GG395, GA42, GG420, GA40, GG435, GA45, GG455, GG475, GA48, GG495, GA50,

VG - Green glass with partialla transmittance in blue and red band ( except V 9 ) :

VG3, VG4, VG5, VG6, VG9, VG10, VG12, VG13,

OG - Edge filters for green and yellow band :

OG1, OG2, OG3, OG4, OG5, OG515, OG530, OG550, OG570, 0G590,

RG - Edge filters for red and infrared band :

RG1, RG2, RG5, RG7, RG8, RG9, UG7, UG8, RG610, RG630, RG645, RG780, RG830, RG850

NG - Neutral filters for VIS , small transmittance in IR :

NG1, NG3, NG4, NG5, NG8, NG10, NG11,

FG - Neutral filters for IR band :

FGB1, FGB2, FGB3, FGR2, FGR3, FGR4, FG6, FG13, FG15, FG16,

Determal glasses - Transmitt in VIS and absorb in difeerent quantity in IR :

BG9, BG22, KG1, KG3, KG4,

Interference filters :

We produce these filters with thin films hard or soft technology. The range of filters is from 250 to 2000 nm. The dimension of coating surface can be till 200 x 200 mm regard to thickness of film system , the maximum is 600 mm.

Combined filters :

We produce these filters as the combination of the absorbing filter glasses and dielectric coating systems. We produce them in range from 250 nm to 2000 nm. Type of filters can be narrow or wide bandpass ones according to order. The bandwith can be from 6 to 50 nm or more, transmitance from 15 to 70 %, the thickness of filters is from 4 to 10 mm according to central wavelength, bandwith and blocking range.

Neutral filters :

These filters are coated with Cr or NiCr on the quality optical surfaces. It is possible to coat the surfaces till diameter 500 mm. These filters are suitable for the dilution of light by observing with microscope etc. The variant of these filters is the one for the Solar photography. It is possible to order these filters in the holders for CCD cameras.

Filtrers UBVRI :

We delivery the normalised system of filters (or single ones) for star photometry corresponding with CCD cameras to extended Bessel (1990) color photometric system. We produce these filters in two basic sets with thickness of 4 mm or 6 mm. It is of course possible to order individual filters in any quantity. It is possible to order to this sets the neutral filter from BK 7 glass for the correction of optical length by camera observing with change set of filters. We produce these filters in any diameter to 99 mm .The mostly manufactured diameters are 25.4 and 40 mm. It is possible to order these filters in the holders for CCD cameras.

Filters RGB :

We delivery color filters and sets of color filters for TV and CCD cameras. The spectral charachteristic of these filters is set according to normalized spectra with traditional name RGB .

RGB SET A:

RGB SET B: