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RSA75F1.2-640-17
Rising
Infrared Athermal Lens Description:
Focal Length 75mm F1.2 Infrared Athermal Lens For Drone Monitor and Infrared Sights Scope
8-12um Long Wave Infrared Germanium Lens For 640x480-17um Detector.
Infrared lens application range:
The application range of infrared lens is very wide, it can not only be used for special purposes corresponding to infrared, but also can be used as an ordinary lens.
In other words, according to different use occasions, the corresponding infrared lens can be flexibly used with conventional color cameras, black and white cameras, and day and night conversion cameras.
Black and white cameras do not have infrared cut-off filters, but the spectrum of sunlight also contains infrared, so even in daytime conditions, the imaging of black and white cameras will be affected by infrared interference. Therefore, the corresponding infrared lens can effectively improve the image quality.
Infrared Athermal Lens Parameters:
| Product Name | Infrared Lens |
| Focal Length | 75mm |
| F# | 1.2 |
| Image Diagonal | 13.6mm (pixel 17um) |
| Detector | 640x480-17um |
| Average Transmission | ＞85% |
| Circular FOV | (H)8°x(V)6°x(D)10.3° |
| Back Focus Distance | 17.4mm |
| Back Working Distance | 8mm |
| Back Focus Length | 19.92mm |
| Dimensions | 70mm / 82.5mm |
| Focus Type | Fixed Focal |
| Focus Range | 5m to infinity |
| Mount Type | M34x0.5 |
| Weight | 282g |
| Operating Temperature | -40℃ to +80℃ |
| Storage Temperature | -40℃ to +80℃ |
| External Coating | AR / DLC Coating Available |
FAQ:
What Are DLC And AR Coating?
Diamond-like carbon (DLC) membrane is an amorphous carbon membrane. The membrane contains a certain number of sp3 bonds, giving it a series of excellent properties close to diamond. It has the advantages of low deposition temperature and large area deposition.
Among various hard membranes, DLC membrane can be positioned as a membrane material with high hardness and excellent wear resistance and low coefficient of friction.
AR (Anti-Reflection) membrane cannot change the absorption rate of the lens itself. It can only increase the transmittance by reducing the reflectance on both sides of the lens, which is the so-called "reflection and antireflection".
Light is an electromagnetic wave. By matching the refractive index and thickness of the AR membrane, the light produces multi-beam interference in the AR membrane-destructive interference on the upper surface and constructive interference on the lower surface.
Infrared Athermal Lens Description:
Focal Length 75mm F1.2 Infrared Athermal Lens For Drone Monitor and Infrared Sights Scope
8-12um Long Wave Infrared Germanium Lens For 640x480-17um Detector.
Infrared lens application range:
The application range of infrared lens is very wide, it can not only be used for special purposes corresponding to infrared, but also can be used as an ordinary lens.
In other words, according to different use occasions, the corresponding infrared lens can be flexibly used with conventional color cameras, black and white cameras, and day and night conversion cameras.
Black and white cameras do not have infrared cut-off filters, but the spectrum of sunlight also contains infrared, so even in daytime conditions, the imaging of black and white cameras will be affected by infrared interference. Therefore, the corresponding infrared lens can effectively improve the image quality.
Infrared Athermal Lens Parameters:
| Product Name | Infrared Lens |
| Focal Length | 75mm |
| F# | 1.2 |
| Image Diagonal | 13.6mm (pixel 17um) |
| Detector | 640x480-17um |
| Average Transmission | ＞85% |
| Circular FOV | (H)8°x(V)6°x(D)10.3° |
| Back Focus Distance | 17.4mm |
| Back Working Distance | 8mm |
| Back Focus Length | 19.92mm |
| Dimensions | 70mm / 82.5mm |
| Focus Type | Fixed Focal |
| Focus Range | 5m to infinity |
| Mount Type | M34x0.5 |
| Weight | 282g |
| Operating Temperature | -40℃ to +80℃ |
| Storage Temperature | -40℃ to +80℃ |
| External Coating | AR / DLC Coating Available |
FAQ:
What Are DLC And AR Coating?
Diamond-like carbon (DLC) membrane is an amorphous carbon membrane. The membrane contains a certain number of sp3 bonds, giving it a series of excellent properties close to diamond. It has the advantages of low deposition temperature and large area deposition.
Among various hard membranes, DLC membrane can be positioned as a membrane material with high hardness and excellent wear resistance and low coefficient of friction.
AR (Anti-Reflection) membrane cannot change the absorption rate of the lens itself. It can only increase the transmittance by reducing the reflectance on both sides of the lens, which is the so-called "reflection and antireflection".
Light is an electromagnetic wave. By matching the refractive index and thickness of the AR membrane, the light produces multi-beam interference in the AR membrane-destructive interference on the upper surface and constructive interference on the lower surface.
