| Model parameters | HPP-990 |
| Tecnical Parameters | |
| Spot Brightness | 0.08-l000asb |
| Optotype | I, II, III, IV, V |
| Stimulus screen | 1920X1080, dual OLED display, brightness 3000cd/m2 |
| Stimulus optotype color | White, Red, Blue |
| Maximum field of view range | ±35º |
| Detection distance | 300mm |
| Pupil Measurement Accuracy | 0.1mm |
| Background light brightness | White 31.5asd / Yellow 315asd |
| Background light colour | White/Yellow |
| Eye position monitoring | Double 1/3 monochrome CMOS, 640X480, observation light 950nm LEO |
| lnterpupillary adjustment | ss~nmm |
| Optotype brightness level | 2, 3, 4db |
| Dioptric compensation | -6-+6D |
| lnterval time | o. 1-1.SS |
| Keep time | 0.l-0.2S |
| Hardware Configuration | |
| Human-computer interaction method | Button control + software control |
| Responder | Wireless response (Bluetooth connection) |
| Projected stimulus screen | Digital OLED screen 1920x1080 |
| Data output | Report export to PDF (support batch output), JPG, TIF, format |
| Overall weight | <1KG |
| Threshold procedure | Support |
| Screening procedure | Support |
| Dynamic program | Support |
| Eye position monitoring | Support |
| Eye movement monitoring | Support |
| Response time eye bitmap | Support |
| Voice prompts | Support |
| Projection correction | Support |
| Pupil measurement | Support |
| Data backup | Support |
| Demo animation | Support |
| Voice prompts | Support |
| Review function | Support |
| Diagnostic template settings | Support |
| Output print function | Support |
| User Access Contro | Support |
| Database management functions | Support |
| System language | Chinese, English, French, German, Spanish, Portuguese, Korean, Japanese |