Home / Electronics Articles / Application of light dependent resistor (LDR) Application of light dependent resistor (LDR) Author: Technical Editor Category: Electronics Articles 18 Mar 17 The Light Dependent Resistor (LDR) used for automatic contrast and brightness control in television receivers. The LDR is used in the infrared astronomy. The LDR is used in optical coding. Used in light activated control circuits. Used in light failure alarm circuits and used in light meter. The LDR used in smoke detectors. Used in the security alarm. The LDR also used in street light control circuits. It is used in camera light meters. Used in photosensitive relay. It is also used as a proximity switch. light dependent resistor (LDR) Like35 Dislike5 Related Articles:What is an Aluminum heat sink and what factors affect its… Tags:light Related Posts Differentiate between single-walled carbon nano-tube and multi-walled carbon nano-tube by Technical Editor Advantages and disadvantages of thermocouple by Technical Editor Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name:* Email:* Website : Save my name, email, and website in this browser for the next time I comment.