Hartmann Sensor Auto Refractometer

Sphere Range:

-20.00D~+20.00D (VD=12mm, 0.01, 0.06, 0.12, 0.25 Increments)

Cylinder Range:

0.0OD~+10.00D (0.06, 0.12, 0.25 Increments)

Axis:

1 Degree - 180 degree (1 degree Increment)

VD Range:

0.0, 12.0, 13.75 and 15.0

Cylinder Symbol:

-, +, mixed

Mini Pupil Size:

2.00mm

PD:

10mm~86mm

Average Measurement Time:

<0.5s

Pupil Distance:

2.00 ~ 8.00mm

Curvature Radius:

5.0~10.0mm (0.01mm Increments)

Refractive Power:

33.00D~67.00D

Cylindrical Power:

0.00D~-15.00D (0.06D/0.12D/0.25D Increments)

Axis:

10 ~180°

Target:

Auto Fog

Max Brightness:

<30uw (Safety Assure)

Date Save:

10 Groups for each eye

Monitor:

8 Inch TFT Touch Screen (Flip)

Printer:

57mm Width, Auto Cutting

Power:

AC 100~240V, 50/60Hz,

Net Weight：

22kgs

Gross Weight:

26.5kgs

Packing:

(L)680mm x (W) 400mm x (H)640mm

Differences

Auto Refracto-Keratometer

Auto Refractometer

Production

Edit and embed software of refractometer and keratometer, use objective standard tool, corneal curvature standard device to adjust and calibrate

Edit and embed software of refractometer only, use objective standard device to adjust and calibrate

Mode

REF, KER, and REF\KER three measurement modes optional

Default REF measurement mode

Imaging principle design

A standard ring is projected onto the patient's cornea with a group of 760nm infrared light, the corneal astigmatism and axis are calculated according to the different curvature parameters in each direction of the corneal reflex ring. Use 850nm infrared light to project the Hartmann lenslet array into the fundus of the patient’s eyes, and separately calculate the parameters such as sphere, cylinder and axis according to the fundus reflection array.

Use 850nm infrared light to project the Hartmann lenslet array into the fundus of the patient’s eyes, and separately calculate the parameters such as sphere , cylinder and axis according to the fundus reflection array.

Purpose

The instrument can be used to measure the curvature of the meridians of the center area about 3mm on the anterior corneal surface, that is the radius of curvature and curvature, so as to determine whether or not the cornea has astigmatism, astigmatism power and axial direction. It can also be used to measure the power of the patient, such as sphere, cylinder and axis.

Used to measure the power of the patient, such as sphere, cylinder and axis.

Measurement mode

Manual measurement and automatic measurement. Aligning the measurement target at the corneal vertex, manual or automatic focus to clear state, the instrument will automatically measure the corneal curvature power. Use the same measuring method to automatically measure the powers of sphere, cylinder and axis.

Manual measurement and automatic measurement. Aligning the measurement target at the corneal vertex, manual or automatic focus to clear state, the instrument will automatically measure the powers of sphere, cylinder and axis.

Patient

Non-contact measurement, the patient opens his eyes and looks right ahead, and move the target to complete the measurement (note the replacement of the chinrest paper and the forehead rubber cleaning)

Non-contact measurement, the patient opens his eyes and looks right ahead, and move the target to complete the measurement (note the replacement of the chinrest paper and the forehead rubber cleaning)