
Analyzer, Testing Equipment
61-6927-19 Aspheric Condenser Lens φ12mm Focal Length 8.5mm AGL-12-8.5P
Product Description
Product Model: 61-6927-19Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6927-19
Product Brand: SIGMAKOKI CO., LTD.
Features
- Aspherical condenser lenses for illumination can emit light for illumination at a large divergence angle (focusing angle).
- It is ***d in high-magnification microscope illumination systems and optical systems that efficiently collect light from divergent light sources.
- A large divergence angle (focusing angle) of approximately NA0.5 has been achieved with a single lens by using an aspherical shape on one side.
- Available in a variety of outer diameter sizes, from compact with a small aperture to large-aperture lenses with a longer back focus.
- It can be ***d in a wide range from the visible range to the infrared range with a wavelength of 2 μm.
- B270 (R) is a registered trademark of SCHOTT AG.
- * When parallel light is incident from the back (plane) side, spherical aberration is large and light does not converge to one point.
- * Since an aspheric condenser lens is a single lens, the focal length varies dep***ing on the wavelength.
- * Aspherical condenser lens is ***d for lighting.
- * This is not an aberration-free lens for laser focusing.
- * Since the lens is not coated with an anti-reflection film, the transmittance of the lens is less than 90% due to the loss ca***d by reflection of the front and back surfaces of the lens.
- * As this is a pressed product, there may be dents or scratches ca***d by sink marks outside the valid range.
Spec
-
[
common specification]
- Material: B270(R) (n d=1.523)
- Shape: Surface nonspherical surface, Back flat face or sphere surface
- Coating: No coat
- Maximum operating temperature: 170℃
- Scratch - dig: 80-50
- Effective diameter: 80% of the outer diameter
- [Individual specification]
- Outer diameter φD: φ12mm
- Focus distance f*2: 8.5mm
- Back focus fb*2: 5.8mm
- NA*1 (D/2 x 0.8/f) : 0.56
- Edge thickness te: 1.6mm
- Center thickness tc*2: 5.5mm
- Back: Sphere surface
- *1 NA is calculated using the 80% of the outer diameter of lens.
- *2 Due to pressing products, Individual difference may vary with the product. Use with enough margin.
- RoHS conform product
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