-------------------------------------------------------------------------------------------------- Non-Contact Tonometer HNT-1/1P 19
3-2-1. List of Optical Components
No.
Name
Function
○
1
Ext. LED
To illuminate eye for Observation Channel
○
2
App. LED
To measure the working distance(Z axis)
To measure the IOP
○
3
Aiming LED
To illuminate eye for detecting of eye center
○
4
Fixation LED
To illuminate the fixation target
○
5
Pachy. LED
To measure for the CCT(Central Cornea Thickness)
○
6
Air nozzle
Air Puffing nozzle
○
7
Aiming Mirror
To reflect the aiming LED to the Eye
○
8
Objective Lens
To image the Eye to the observation camera
○
9
Fix. Mirror
To reflect the fixation LED and Pachy. LED
○
10
Image Lens
To image the Eye to the observation camera
○
11
Observation Camera
The camera for the Observation channel
○
12
Signal Lens
To gather the applanation signal to the PD sensor
○
13
PD Mirror
To reflect the applanation signal to the PD sensor
○
14
PD Sensor
To detect the applanation signal
○
15
Psd Lens
To gather the reflection signal from the eye to the PSD sensor
○
16
Psd Sensor
To detect the working distance
○
17
Fixation Pinhole
○
18
Pachy. Prism
To reflect the fixation LED and to penetrate the Pachy. LED
○
23
○
24
○
25
