APPARATUS FOR CONTROLLING A ZOOM LENS OPTICAL SYSTEM TO USE A LENS ADJUSTMENT TABLE SUITABLE FOR TEMPERATURE OF A LENS BARREL AS BASIC DATA FOR CONTROLLING A ZOOM LENS AND A FOCUS LENS

摘要

Purpose: the device for controlling a zoom lens optical system be arranged to use the temperature for being suitable for a lens barrel as firsthand information lens adjusting table, it is used to control a zoom lens and a condenser lens, regardless of the thermal transformation of lens barrel is to accurately control zoom and focus motion, control table is adjusted using at least two kind lens by the temperature due to lens barrel. Construction: it includes zoom lens (12) and a condenser lens (14) that a lens barrel (10), which has multiple lens,. The image signal captured by lens is converted into an electric signal by an image signal processing unit (20). One controller (30) passes through one object of electrical signal detection and exports a focal zone control problem signal and a driving control signal, corresponding with electric signal. Since the temperature of lens barrel is more than that two kinds of lens adjusting control tables are stored in an EEPROM (electrically erasable and programmable read only memory) (40). The temperature of lens barrel is detected by a temperature sensor (70) and is entered controller. Here, the lens that controller selection is suitable for the temperature of lens barrel adjust control table and using table control zoom lens and condenser lenses.