Laser Scan Lens

Features

These scan lenses are telecentric objectives that are ideal for use in laser scanning applications like Optical Coherence Tomography (OCT). Telecentric objectives are used in OCT and other laser imaging systems because of the advantages of a flat imaging plane when used in applications that scan the laser across the sample being imaged. A flat imaging plane minimizes image distortion, which in turn allows for the creation of geometrically correct images without the need for extensive post image processing. A telecentric scan lens also maximizes the coupling of the light scattered or emitted from the sample (the signal) into the detection system. In addition, the spot size in the image plane is nearly constant over the entire FOV so that resolution of the image is constant.

This type of objective lens is usually called a scan lens because a laser beam is scanned across the back aperture of the objective lens in order to form the image of the sample. Each position that the laser is scanned over corresponds to one point in the image formed. This approach results in a focal spot on the sample that is not, in general, coincident with the optical axis of the scan lens. In traditional lenses, this would result in the introduction of severe aberrations that would significantly degrade quality of the resulting image. However the scan lenses were designed to create a uniform spot size and optical path length for the laser for every scan position, which allows a uniform, high-quality, image of the sample to be formed.

Laser Scan Lens

* Scanning Distance (SD): Distance between the galvo mirror pivot point and the back mounting plate of the objective. The galvo mirror pivot point is located at the back focal plane of the objective in order to maximize image resolution.

* Pupil Size (EP): The size of the EP determines the ideal 1/e2 collimated beam diameter that should be used for the beam of light used to image the sample in order to maximize the resolution of the imaging system.

* Working Distance (WD or LWD): The distance between the tip of the scan lens housing and the front focal plane of the scan lens is defined as the WD.

* Depth of View (DOV): The DOV parameter reported for these scan lenses corresponds to the distance between the front focal plane and a parallel plane where the beam spot area has increased by a factor of 2.

* Field of View (FOV): The FOV is the maximum size of the area on the sample that can be imaged with a resolution equal to or better than the stated resolution of these scan lenses. In order to meet this specification the imaging system must be designed to properly utilize these scan lenses in the system.

* Parafocal Distance (PD): The PD is the distance from the scan lens mounting plane to the front focal plane of these scan lenses.

* Curvature (C): The curvature is the maximum distance between the front focal surface and an ideal plane.

* Scan Angle: The maximum allowed angle (in the X or Y direction) between the beam and the optical axis of an scan lens after being reflected off of the galvo mirror.

  Qty Descriptions Notes
10x Laser Scan Lens Wavelegth 1265-1365nm
5x Laser Scan Lens Wavelegth 1265-1365nm
3x Laser Scan Lens Wavelegth 1265-1365nm

Please send us an e-mail for more information about laser scan lens and OCT relatated parts.

Laser Scan Lens Inquiry Form

Subject:
Your E-mail:
Message:
-- Thank you! We'll reply to your request soon.


© www.optocity.com | Phone: 910-331-4862 | E-mail: sales@optocity.com scanlens >> Go to top


OptoCity
 
  Cart Need help finding a product?
Email or Call 910-331-4862
Quality Crystals &
Optical Components
  1. Home
  2. NLO Crystals
    1. BBO
    2. LBO
    3. BiBO
    4. KDP
    5. KTP
    6. KTA
    7. LiNbO3
    8. AgGaS2
    9. RTP
    10. Pockels Cells
    11. Crystal Oven
  3. Laser Crystals
    1. Cr4+:YAG
    2. Nd:YAG
    3. Yb:YAG
    4. Nd:YVO4
    5. Nd:GdVO4
    6. Nd:KGW
    7. Yb:KGW
    8. Ti:Sapphire
  4. Optical Crystals
    1. Alfa-BBO
    2. Calcite
    3. YVO4
    4. Quartz
    5. CaF2
    6. MgF2
    7. YAG
    8. Sapphire
    9. ZnS, ZnSe
    10. Germanium
    11. Silicon
    12. GaAs
    13. TGG/Faraday Rotator
    14. ZnTe THz
  5. Waveplates
    1. True zero-order waveplate
    2. Zero Order Waveplate
    3. Low Order Waveplate
    4. Achromatic Waveplate
    5. Dual-wavelength waveplate
    6. Variable Waveplate
    7. Polarization Rotator
    8. Waveplate Ring Holder
  6. Polarizers
    1. Glan-Laser Polarizer
    2. Glan-Taylor Polarizer
    3. Glan-Thompson Polarizer
    4. Wollaston Polarizer
    5. Rochon Polarizer
    6. Thin Film Polarizer
    7. Glass Polarizer
    8. Depolarizer
  7. Beamsplitters
    1. Beamspliter Cube
    2. Plate Beamspliter
    3. Non-polarizing Beamsplitter
    4. Polarizing Beamsplitter
  8. Mirrors
    1. Broadband Dielectric Mirror
    2. High Power Laser Mirror
    3. Metal Coated Mirror
    4. Concave Mirror
    5. Dichroic Mirror
  9. Filters
    1. Bandpass Filter
    2. IR Bandpass Filter
    3. Fluorescence Imaging Filter
    4. Long/Short Pass Filter
    5. Colored Glass
  10. Windows
    1. N-BK7 Window
    2. Fused Silica Window
    3. Borofloat/Pyrex Window
    4. CaF2 Window
    5. Sapphire Window
    6. Silicon Window
  11. Lenses
    1. Spheric Lens
    2. Cylindrical Lens
    3. Micro Lens
    4. Achromatic Lens
    5. Laser Scan Lens
    6. CCD Camera Lens
    7. Motorized Zoom Lens
  12. Prisms
    1. Reflective Prism
    2. Dispersive Prism
    3. Deflecting Prism
    4. Penta Prism
    5. Retroreflector
    6. Right Angle Prism
  13. Optical Assembly
  14. About