Development and manufacture of industrial lenses for machine vision, surveillance, ITS and defense
CBC Co., Ltd. – Marke Computar
Tokyo (Tsukishima) · Tokyo (Heiwajima) · Tokyo (Toyo) · Beijing (Huairou) · Chittagong (CEPZ) · Chittagong (KEPZ) · Düsseldorf · Cary, NCNew on Amplifa
About Computar
Computar is a brand of CBC Co., Ltd. (CBC Group, Japan) and a manufacturer of industrial lenses and objectives for CCTV surveillance cameras, machine vision/factory automation, intelligent traffic systems, defense, life sciences and OEM customers. The CCTV lens business started in 1974, and the Computar brand was introduced in 1981. The product range includes fixed focal length, varifocal and motorized zoom lenses, telecentric FA lenses, megapixel lenses up to 20 MP, 4K surveillance lenses, SWIR and ViSWIR lenses, ZnS thermal lenses and electrically controlled lenses (LensConnect). The value chain ranges from planning, product development and industrial design through optical thin-film coating to assembly, alignment and quality inspection with proprietary and jointly developed optical measurement systems. Production takes place in own plants in Beijing (China), Chittagong (two plants in Bangladesh) and Tokyo; sales are conducted worldwide through locations in 14 countries. Component selection is RoHS- and REACH-compliant.
- Site
- Tokyo (Tsukishima)
- Processes
- Optical lens development and design (planning, product development, industrial design), Lens assembly and alignment (lifetime alignment technology), Optical thin-film coating, Mass production of lenses for CCTV/surveillance cameras and machine vision, Quality inspection with proprietary optical measuring devices (resolution analysis, aspheric 3D, Custom special solutions (planning, product development, industrial design, manufacturing), In-house development and quality assurance with original measuring instruments (refractive index, Electrically controlled lenses (LensConnect)
- Materials
- ZnS (zinc sulfide), Optical glass, RoHS/REACH-compliant component materials, Zinc sulfide
- Certificates
- Proprietary optical measurement systems (resolution analysis, aspheric 3D, ISO 9001
- Founded
- 1974 (CCTV
- Industries
- Machine Vision / Factory Automation, Video Surveillance / Security, Intelligent Traffic Systems (ITS), Defense, Life Sciences / Medicine, OEM / Cameras
- 01
Planning and product development
- 02
Industrial design
- 03
Optical thin-film coating
- 04
Assembly and alignment
- 05
Quality inspection with proprietary optical measuring devices
- 06
Distribution via global sales network
Materials and Processes
Zinc sulfide
Material for thermal lenses in the infrared range (since 2011).
Optical glass
Base material of the lens systems, evaluated down to refractive index measurement at the glass supplier.
RoHS/REACH-compliant component materials
Component selection according to RoHS and REACH requirements.
Locations
Tokyo (Tsukishima)
JPHeadquarters CBC Co., Ltd.
Beijing (Huairou)
CNProduction site CBC OPTRONICS (BEIJING) Co., Ltd.
- Refractive index measuring device
- Aspheric surface 3D measuring machine
- Proprietary optical measuring devices (resolution analysis)
Chittagong (CEPZ)
BDProduction site 1: CBC OPTRONICS (BD) Co., Ltd.
- Proprietary optical measuring devices
Chittagong (KEPZ)
BDProduction site 2: CBC OPTICAL INDUSTRIES BD Co., Ltd.
- Proprietary optical measuring devices
Tokyo (Heiwajima)
JPProduction site CBC Optex Co., Ltd. (optical thin-film technology)
Tokyo (Toyo)
JPProduction site CBC Opto Technologies Co., Ltd.
Düsseldorf
DESales location CBC (EUROPE) GmbH
Cary, NC
USSales location CBC AMERICA LLC
Lenses and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Optical lens development and design (planning, product development, industrial design)Engineering | – | – | – | – | – |
| Lens assembly and alignment (lifetime alignment technology)Assembly | – | – | – | – | – |
| Optical thin-film coatingSurface | – | – | – | – | – |
| Mass production of lenses for CCTV/surveillance cameras and machine visionAssembly | – | – | – | – | Optical glass, ZnS (zinc sulfide) |
| Quality inspection with proprietary optical measuring devices (resolution analysis, aspheric 3DTesting | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Aspheric surface 3D measuring machine | – | – | – | – | Production sites (quality inspection) |
| Refractive index measuring device | – | – | – | – | Glass supplier / quality inspection |
| Proprietary optical measuring devices (resolution analysis) | Computar/CBC | – | – | – | Production sites |
Additional services
Quality
Quality assurance is based on centralized global transmission of quality data to headquarters as well as proprietary measuring equipment and instruments developed jointly with specialized companies, such as aspheric surface 3D measuring machines, refractive index measuring devices and proprietary resolution analysis devices. Trained specialist staff apply measurement know-how built up over half a century at all plants.
| Evidence | Beijing (Huairou) | Chittagong (CEPZ) | Chittagong (KEPZ) | Tokyo (Heiwajima) |
|---|---|---|---|---|
| Proprietary optical measurement systems (resolution analysis, aspheric 3D | ||||
| ISO 9001 |