光起了

黑暗中,光亮起了,舞台上另一個時空才得以展現。燈光於劇場有著舉足輕重的作用,你對不同的舞台燈具又有多少認識呢?

佛式聚光燈/螺紋燈

它因採用法國物理學家奧古斯丁‧菲涅耳(Augustin Fresnel)發明的透鏡而得其英文名字。光區邊緣柔和,有多餘的漫射光。透過控制燈體與透鏡之間的距離,光束的大小即可調節。佛式聚光燈無法投射「Gobo」(造型圖案片),但它適合用作近距離或中等距離的照明。

佛式聚光燈/螺紋燈

光區邊緣柔和,有多餘的漫射光

筒燈

它的光線強烈而集中,但無法聚焦或強化光線的邊界。筒燈適合用作不同用途,由於其成本較低而且重量輕,故製作預算較少的演出(如樂隊音樂演出)常使用此燈種。

筒燈

光線強烈而集中,但無法聚焦或強化光區邊緣

橢圓反射聚光燈

它比佛式聚光燈長,其透鏡安裝於可前後移動的燈體內,因此它產生的光區可以有柔和或鮮明的邊緣。由於其反射鏡呈橢圓形,故它可以準確聚焦光線,沒有多餘的漫射光。它可以投射「Gobo」(造型圖案片),也可以運用切光片(shutters)切成形狀特別的光區。它適合用作中等距離或遠距離的照明。

橢圓反射聚光燈

可以準確聚焦光線,沒有多餘的漫射光

追光燈

它由工作人員操作移動,用於強調或追蹤舞台上某一個演出者,其光圈大小可以調校。不同劇場需要不同的追光燈,知道燈體與舞台之間的距離,才可決定使用哪一種追光燈。

追光燈

由工作人員操作移動,用於強調或追蹤舞台上某一個演出者

遮光板

用遮光板安裝於光區邊緣柔和的燈具之透鏡前,可以擋去部分漫射光。

遮光板

使用遮光板前,光區呈圓形﹔使用遮光板後,左右兩側的漫射光被擋去

Let there be LIGHT

With light breaking through the darkness, a unique space and period are revealed on stage. Light is indispensable to the theatre, but how much do you know about different lighting instruments?

Fresnel

It is the most common kind of soft-edged light, named after the lens it uses - which is invented by French physicist Augustin Fresnel. Its beam has a soft edge and will spread a considerable amount of light outside the beam. The beam can be adjusted into larger or smaller circle by sliding the lamp closer to or farther away from the lens. This kind of lighting instrument cannot project gobo images, but it is a cheap way for stage lighting, especially at close and medium ranges to the subject.

Fresnel

Soft-edged beam with light spilling outside the beam

Parcan

Its beam is bright, intense and durable, but it cannot be focused or given any kind of sharp edge. It is suitable for a wide range of duties, especially band shows with smaller budgets, due to its low cost and light weight.

Parcan

Beam is bright, intense and durable, but it cannot be focused or given any kind of sharp edge

Ellipsoidal

It has a longer body than Fresnel, with all of its lenses mounted in a movable barrel that can be slid back and forth, hence the light it produces can be either hard- or soft-edged. Having a reflector shaped like an ellipse, it can focus light more precisely with little spill. This sharp beam enables the light to project gobos as well as using shutters to project a specifically shaped light beam. Ellipsoidal is suitable for projections and for lighting at medium and long ranges from the subject.

Ellipsoidal

Light can be focused precisely with little spill

Follow spots

It is a movable lighting instrument operated by an operator to emphasize or illuminate or follow a specific performer on stage. Size of the light circle is determined by the iris. Theatres of different size shall need follow spots of different size. The distance from the follow spot to the stage, throw distance, is required in order to determine which spot is needed.

Follow spots

Operated by an operator to emphasize or illuminate or follow a specific performer on stage

Barn doors

Barn doors are a set of flaps that can be swung in front of the lens of lanterns producing soft-edged light, masking off part of the light emitted.

Barn doors

Part of the light emitted is masked off (before barn doors are used, the lighting area is circular in shape; it becomes rectangular after barn doors are used)