Contact

Address: Juzhu Road, Sanbei Town, Cixi City

Finance Room Phone:

86-574- 63738668?

Business Department Tel:

86-574- 63739476?

Office Phone:

86-574- 63738998?

Fax:86-574- 63739999?

QQ:563671224

Website: en.cnpenglai.com

E-mail: penglai@cnpenglai.com


HL001(71.5*38.5)Fresnel lens (flaky)

Your current position: Home >> Products >> Fresnel lens (flaky)

HL001(71.5*38.5)Fresnel lens (flaky)

Detailed introduction

Fresnel lens (flaky):

HL001 (71.5*38.5)

Focal length: 29MM

Distance: 12M

Angle: 120 degrees


Fresnel optical lens light is widely used in film photography lighting. The optical system of this spotlight consists of a Fresnel lens (commonly known as a threaded lens) and a spherical mirror. The center of the luminous body of the light source is located at the spherical center of the spherical mirror. By means of the focusing mechanism, the light source and the mirror can be moved back and forth along the optical axis of the Fresnel lens, so that a light beam with a continuously changing angle can be obtained. The non-threaded surface of the Fresnel lens is usually pressed with a variety of patterns, such as "moiré" or "honeycomb," so that the light is properly scattered, so that the lighting effect is soft and uniform, and there is no clear boundary in the irradiated light field. For easy access to light. The beam angle of this lamp can be adjusted within the range of 15° to 60°. The outside of the light box is equipped with a light shield called a concealer. In front of the lens, there is also a frame that can hold light paper. The majority of Fresnel lens spotlights used in cinematic photography lighting use tungsten halogen lamps as the light source, and a series of lamps ranging from 200 watts to 20 kilowatts are formed according to the power of the light source. In addition to halogen lamps, there are Fresnel lens spotlights using carbon arc light sources, commonly referred to as carbon lamps. Carbon lamp has complicated mechanical structure, heavy weight and large volume, and has cyanide gas and smoke pollution. However, due to the high luminous intensity of carbon lamp and wide beam projection surface, it can form high illumination, and it is still difficult to replace by other lamps at present. . In the 1980s, Fresnel lens spotlights using metal halide lamps as light sources have entered a practical stage, and gradually improved.


Related tags:Fresnellens(spherical)

未标题-3.png

Address: Juzhu Road, Sanbei Town, Cixi City

Fax:86-574-63739999

E-mail:penglai@cnpenglai.com

Office Phone:86-574- 63738998? ? ? ?Business Department Tel:86-574- 63739476? ? ? ?

Finance Room Phone:86-574- 63738668

Copyright ?? Ningbo Xuan Chang Electric Co., Ltd.? Powered by? China Enterprise Cube Technical Support: China Enterprise Cube

URL :www.cnpenglai.com

Website: en.cnpenglai.com

HOME? ? ? ???ABOUT? ? ??PRODUCT? ? ?NEWS? ? ???CONTACT

二维码

Scan QR code

share
Welcome to our message
Please enter the message content, we will contact you as soon as possible。
Full name
Full name
Telephone
Telephone
mailbox
mailbox
address
address