Portable lensometer HLM-1A | portable dioptrimeter Handheld focimeter Optical lens meter battery powered Lensometer HLM-1A
Technical Details
| Brand Name: | Optometrial |
| Cylindnical Axis Range: | 0° ~ 180°, 1° Steps |
| Eyepiece Focusing: | -5D ~ +5D |
| Features: | Small in size |
| Lenses Accommodated: | Diameter 20mm ~ 80mm |
| Model Number: | HLM-1A |
| Power Supply: | DC 3V |
| Prismatic Power Range: | 4 prism diopter, 1D step |
| Vertex Power Range: | +15D ~ -15D steps |
| Vertex Power Step: | 0 ~ (+/-)10D (0.125D); (+/-)10D~(+/-)15D, (0.25D) |
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