OPTICA ‘ s filter are designed for operation at 23 degrees Celsius, these filters can be used throughout the temperature range of -50 to +100 degrees Celsius as long as thermal shock is avoided.
Color Glass Filter
Color glass filters stands out due to its selective absorption in the visible wavelength range. The filters appear to be colored if their filter effect lies within the visible light spectrum. Optica, one of the leading filter glass manufacturers with a wide product range.
Our range of glass filters with more than 60 types includes the following filter types in the visible wavelength range from 200 nm upwards:
• Band pass filters, which allow required ranges to pass through selectively
• Long pass filters, which block unwanted shorter wave ranges
• Short pass filters, which block unwanted longer wave ranges
Color Glass Bandpass Filter are often used for longpass and bandpass filters, coated substrate cemented with color glass which have different absorption and transmission properties across the spectrum.
Technical Specification
Sizes & Tolerance | Size 3mm to 160mm + 0.2mm ( Round or Rectangular) |
Thickness Tolerance | 1mm to 6mm ±0.2mm |
Flatness | 2λ@632.8nm |
Surface Quality | 80/50 scratch and dig |
Parallelism | <1 arc minutes |
Clear Aperture | >90% |
Size: Diameter 3 mm to 160mm, Square 5mm to 160mm
We offer following Std Color Glass Filters:
GG Series: Yellow glass : GG400, GG420, GG455, GG475, GG495
OG Series: Orange glass : OG530, OG550, OG570, OG590
RG Series: Red and black glass, IR transmitting : RG610, RG630, RG645, RG665, RG695, RG715, RG780, RG830, RG85
UG Series: Black blue glasses, ultraviolet transmitting : UG1, UG5, UG11
KG Series: Colorless glass with high transmission in the visible and absorption in the IR range (heatprotection filters) : KG1,KG2, KG3 KG5
NG Series: Neutral Density Filters: NG1, NG3, NG4, NG5, NG9, NG11
Graph of all above Filters can be viewed in the image gallery.
Other frequently used color filter:
WG Series: WG280, WG295, WG320, WG345, WG360
BG Series: BG38, BG39
VG Series: VG5, VG6, VG8, VG9, VG10, VG11
Dichroic Filter
Optica Dichroic Filters Series have been designed with the assistant of entertainment and architectural lighting designers, which provided a comprehensive selection of consistence shades express perfect images for both interior and exterior applications. Some of the subtle, pale also offer you a unique alternative to create various aesthetic effects for architectural use and characteristic lighting.
OAEPL Dichroic Series provide you the flexibility to choose suitable colors for your projects and the benesfits of absolute spectral stability in addition to excellent resistance to environmental degradation.
Optica Dichroic Filters
- 28 kinds of standard colors
- 6 kinds of color correction filters.
- Correspond to LEE and ROSCO
- Size : 50 x 50 with 1.10mm thickness
- Substrate : Borofloat glass material
Technical Specification
Humidity | Adhesion. Abrasion Resistance |
Available Glass Substrate | Soda-Lime Glass, Tempered Glass, Borofloat Glass & Borosilicate Glass |
Maximum Operation Temperature | Soda-Lime Material : 150 °C, Tempered Material : 250 °C & Borofloat Material : 450 °C |
Available Sizes | Square : 7mm – 300mm & Round : 10mm – 450mm |
Standard Thickness | 1.10mm |
Optional Thickness | 0.55mm, 1.86mm & 2.86mm |
Cutting Tolerance | ± 0.1mm |
Color Tolerance | ± 5nm of Designed Half Height |
Long pass and short pass filters are two distinct types of specialized optical filters. Long pass filters transmit electromagnetic radiation with long wavelengths while blocking shorter wavelengths. Short pass filters do the opposite: they pass short wavelengths and block longer ones. Both types are sometimes grouped as edge filters (referring to the steep cut-on and cut-off between transmission and rejection) or barrier filters (due to the rejection of large sections of long or short wavelengths).
Cold Mirror is used to in certain applications where it is desirable to reflect visible light, but transmit the IR (heat energy) to replace the Hot Mirror.
Filter | Application | Material |
|---|---|---|
Long Pass Filter | Long Pass Filters Are Frequently Employed In Fluorescent Spectroscopy. Fluorescence, By Definition, Is The Emission Of Light By A Substance That Has Absorbed Electromagnetic Radiation; The Specific Light Wavelengths Absorbed Are Termed Excitation Light. Because Fluorescence Emitting From An Object Typically Has Higher Wavelengths Than The Excitation Light That Caused It, Long Pass Filters Can Be Used To Pass Only Precise Fluorescence Wavelengths While Blocking Leakage From The Excitation Lamp. | Soda-Lime Glass, Tempered Glass, Borofloat Glass, Borosilicate Glass |
Short Pass Filter | Short pass filters are used in Raman spectroscopy. | Soda-Lime Glass, Tempered Glass, Borofloat Glass, Borosilicate Glass |
Cold Mirror |
| Soda-Lime Glass, Tempered Glass, Borofloat Glass, Borosilicate Glass |
Hot Mirror | Digital photography | Soda-Lime Glass, Tempered Glass, Borofloat Glass, Borosilicate Glass |
Interference Filter
Optica Dichroic Filters Series have been designed with the assistant of entertainment and architectural lighting designers, which provided a comprehensive selection of consistence shades express perfect images for both interior and exterior applications. Some of the subtle, pale also offer you a unique alternative to create various aesthetic effects for architectural use and characteristic lighting.
OPTICA can provide following typical Narrow Bandpass filter: CWL(nm) 340, 405, 420 ,430 , 450 , 470, 480, 492 ,500 505,510, 520, 532, 540, 546 ,550, 580,590, 600 610, 630, 650, ,690,730,780,830,900,940,1064
Filter | Application | Material |
|---|---|---|
Flouresence Filter | This is broadly utilized in biotechnology and analytical applications due to its extraordinary sensitivity, high specificity, and simplicity. | Soda-Lime Glass, Tempered Glass, Borofloat Glass, Borosilicate Glass |
Narrow Bandpass Filter | Water And Environmental Testing, Clinical Chemistry, Colorimetry, Photometry, Lasers, Color Sorting ,Sensing And Detecting | Boroflat |
Laser Line Filter | Flat-Top Narrowband Filters Are Ideal For LIDAR, Raman Spectroscopy, And Other Applications That Require The Use Of Precision Laser Transmitting Filters Or Laser Cleanup Filters. |
|
Interference Filter
Specification | Grade |
|---|---|
Mount Diameter | 10mm To 25.4mm +0/-0.2mm |
Clear Aperture | >80% |
Thickness | <10mm |
CWL Tolerance | ±2nm |
FWHM | 10nm |
Peak Transmission | >45% |
Block | <0.01%(X Ray To 1100nm) |
CWL Shift | <0.02nm/℃ |
Narrow Bandpass Interference Filter
Specification | Grade |
|---|---|
Central Wavelength (CWL) Tolerance | ±2nm |
Full Width-Half Maximum (FWHM) | 10nm |
Operating Temp.Range | -10° C To +70° C |
Surface Quality | 80-50 |
Block | <0.01%(X Ray To 1100nm) |