A structure of a scale graduation includes: a meter dial plate, a light-guiding body made of a translucent material in a dark color, a three-dimensional graduation disposed in a protruding manner on a front surface of the light-guiding body and made of a translucent material in the dark color disposed on the front side of the meter dial plate, and a light source that makes light enter the three-dimensional graduation through the light-guiding body. When the light source emits outgoing light, the three-dimensional graduation lights on in a light color different from the dark color.

A structure of a scale graduation includes: a meter dial plate, a light-guiding body made of a translucent material in a dark color, a three-dimensional graduation disposed in a protruding manner on a front surface of the light-guiding body and made of a translucent material in the dark color disposed on the front side of the meter dial plate, and a light source that makes light enter the three-dimensional graduation through the light-guiding body. When the light source emits outgoing light, the three-dimensional graduation lights on in a light color different from the dark color.

A torque wrench provided with illumination structure and indicated graduations includes a tubular body bored with an insert hole and an illumination hole. The tubular body is provided therein with a graduated ring having its outer circumferential wall provided with a graduation marked portion, with an interval kept between the graduation marked portion and the inner tube wall of the tubular body. A lens is disposed at a location corresponding to the insert hole, and a light-emitting element is installed at a location corresponding to the illumination hole. Thus, light emitted by the light-emitting element will first illuminate the graduation marked portion and thereafter the reflected light of the graduation marked portion will pass through the insert hole and pass out the lens, enabling a user to clearly read the graduation marked portion.

A pointer including a thick section formed on a pointer body in a manner to be thicker than a thickness of the pointer body, an accommodation section provided in the thick section in a manner to penetrate through a front and back of the thick section, and a luminous member provided in the accommodation section.

An instrument cluster for a motor vehicle includes a dial surface having a plurality of indicia located thereon. A pointer contacts the dial surface and is configured to rotate with respect to the dial surface. Piezoelectric material is disposed on one of the dial surface and the pointer. The piezoelectric material is configured to deform due to contact between the pointer and the dial surface.

An instrument cluster for a motor vehicle includes a dial surface having a plurality of indicia located thereon. A pointer contacts the dial surface and is configured to rotate with respect to the dial surface. Piezoelectric material is disposed on one of the dial surface and the pointer. The piezoelectric material is configured to deform due to contact between the pointer and the dial surface.

A pointer is rotational relative to a dial plate. The pointer includes a body, a needle and a counterweight. The needle extends radially outward from the body. The counterweight is a separate component from the body and is affixed to the body. The counterweight is located on an opposite side of the body from the needle.

A pointer is rotational relative to a dial plate. The pointer includes a body, a needle and a counterweight. The needle extends radially outward from the body. The counterweight is a separate component from the body and is affixed to the body. The counterweight is located on an opposite side of the body from the needle.

A pointer is rotational relative to the dial plate. The pointer includes a pointer shaft, which is non-opaque to conduct light therethrough. A driver unit includes a drive shaft coaxial with the pointer shaft. A light source emits light. A hub interconnects the pointer shaft with the drive shaft. The hub includes a light pickup, which is non-opaque to receive light from the light source and to conduct the light into the pointer shaft.

A pointer is rotational relative to the dial plate. The pointer includes a pointer shaft, which is non-opaque to conduct light therethrough. A driver unit includes a drive shaft coaxial with the pointer shaft. A light source emits light. A hub interconnects the pointer shaft with the drive shaft. The hub includes a light pickup, which is non-opaque to receive light from the light source and to conduct the light into the pointer shaft.