Abstract: A light emitting device including a fluorescent material with reduced hue, and a method of manufacturing the light emitting device are provided. A light emitting device 100 includes: a light emitting element 1; a first light-transmissive member 3 covering the light emitting element 1; and a light diffusing member 5 contained in the first light-transmissive member 3. The light diffusing member 5 includes hollow particles. The surface of the first light-transmissive member 3 has irregular shapes attributed to the light diffusing member 5. The first light-transmissive member 3 is covered with a second light-transmissive member 4. The second light-transmissive member 4 has a convex structure in which the center is the uppermost point. The irregular shapes attributed to the light diffusing member 5 are covered with the second light-transmissive member 4.

Abstract: A vehicular steering condition detecting apparatus a position sensor and a pulse generator each of which operate to generate an output in conjunction with the operating condition of a steering wheel, and a microcomputer which makes a comparison between a change in the output of the position sensor due to the operation of the steering wheel by the driver and the number of pulses generated by the pulse generator for every sampling period of a predetermined length, and determines that a failure occurred in the position sensor or the pulse generator if there exists no proportional relationship therebetween.

Abstract: An apparatus for detecting the steering angle of rear wheels of a vehicle, wherein a motor is used for steering the rear wheels and the motor is controlled by the number of pulses generated by a pulse generator which detects the revolutions of the motor and the output signal from an absolute encoder which detects the steering angle of the rear wheels.

Abstract: A rear-wheel steering angle detecting apparatus according to the present invention includes an absolute value type rotary encoder (13) operatively connected with a rear-wheel steering mechanism for detecting the steering angle of the rear wheels of a vehicle, and a controller for finely dividing the output of the rotary encoder by the output of a pulse generator (12) for fine division of the rear-wheel steering angle. By finely dividing the rear-wheel steering angle, as detected by the rotary encoder, by the number of pulses generated by the pulse generator, which is used for speed detection, the rear-wheel steering angle is detected with a high degree of resolution.

Abstract: A reversible control apparatus for controlling a motor is provided which is highly durable, weather proof, simple in structure and inexpensive to manufacture. The motor is controllably driven by a motor driver. A target rotational speed determiner determines a target rotational speed for the motor and generates a corresponding output signal. A rotational speed sensor senses the rotational speed of the motor and generates a corresponding output signal having no polarity which indicates the direction of rotation of the motor. A motor controller controls the motor driver. A polarity applying means applies a polarity to the output signal of the rotational speed sensor on the basis of the output signal of the target rotational speed signal and the output signal of the motor controller.