< Topic >Be able to guarantee necessary synchronous characteristic easily between projection unit and focusing unit, it extends to all the focusing territories and optimizing preliminary adjustment process not only as little as possible, tolerance of the optical system constitution group the optical system for the image pickup which each equipment individually can also compensate with simple method and the ophthalmology device for eyeground inspection under using the electronic sensor it regards the operation law and its installation device.SolutionsOn the focusing device for the ophthalmology equipment of this invention which is based non mydriatic principle in the projection unit is formed to the direction which parallels 3 which the eye surface projects one focusing mark at least in the infrared spectrum territory and optical axis 5 with portable unrestricted focusing unit 4. Movement, in this case, following to the appropriate extra setting of existing control unit, or is done both simultaneously individually by the electronic control possible adjustment element.< Selective figure >Figure 1【課題】投射ユニットとフォーカスユニット間で必要な同期性が容易に確保でき、全フォーカス領域に亘り予備調整過程を最適化することができるだけでなく、光学系構成群の公差を各機器個別に簡単な方法で補償することもできる撮像用の光学システムと電子センサの使用下における眼底検査用眼科装置の操作法およびその据付装置に関する。【解決手段】「無散瞳」原理に基づく本発明の眼科機器用フォーカス装置は、赤外線スペクトル領域で少なくとも1つのフォーカスマークを眼面投射する投射ユニット3および光軸5に沿う方向に移動自在なフォーカスユニット4で構成されている。移動は、この場合、既設制御ユニットの然るべき予備設定に従って、電子制御可能な調整素子により双方同時にまたは個別に行われる。【選択図】図1
